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add bootloader project

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This commit is contained in:
Conor Patrick 2018-07-14 15:55:57 -04:00
parent 1ccc6b8960
commit b05f3cc9e8
23 changed files with 12250 additions and 7 deletions
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2
efm32/src/app.h
View File

@ -8,6 +8,8 @@
#ifndef SRC_APP_H_ #ifndef SRC_APP_H_
#define SRC_APP_H_ #define SRC_APP_H_
#define PRINTING_USE_VCOM #define PRINTING_USE_VCOM
#define USING_DEV_BOARD #define USING_DEV_BOARD

4
efm32/src/crypto.c
View File

@ -311,13 +311,13 @@ void crypto_ecdsa_sign(uint8_t * data, int len, uint8_t * sig, int MBEDTLS_ECP_I
if ( uECC_sign(_signing_key, data, len, sig, curve) == 0) if ( uECC_sign(_signing_key, data, len, sig, curve) == 0)
{ {
printf("error, uECC failed\n"); printf2(TAG_ERR,"error, uECC failed\n");
exit(1); exit(1);
} }
return; return;
fail: fail:
printf("error, invalid key length\n"); printf2(TAG_ERR,"error, invalid key length: %d\n", _key_len);
exit(1); exit(1);
} }

44
efm32/src/device.c
View File

@ -303,11 +303,52 @@ int authenticator_is_backup_initialized()
uint8_t adc_rng(void); uint8_t adc_rng(void);
void bootloader_init(void)
{
/* Chip errata */
// status LEDS
GPIO_PinModeSet(gpioPortF,
4,
gpioModePushPull,
0);
GPIO_PinModeSet(gpioPortF,
5,
gpioModePushPull,
1);
// EFM8 RDY/BUSY
GPIO_PinModeSet(RDY_PIN, gpioModeInput, 0);
// EFM8 MSG Available
GPIO_PinModeSet(MSG_AVAIL_PIN, gpioModeInput, 0);
// SPI R/w Indicator
GPIO_PinModeSet(RW_PIN, gpioModePushPull, 1);
// USB message rdy ext int
// GPIO_ExtIntConfig(gpioPortC, 9, 9, 1, 0,1);
// NVIC_EnableIRQ(GPIO_ODD_IRQn);
printing_init();
MSC_Init();
}
void device_init(void) void device_init(void)
{ {
/* Chip errata */ /* Chip errata */
CHIP_Init(); CHIP_Init();
enter_DefaultMode_from_RESET(); enter_DefaultMode_from_RESET();
@ -341,6 +382,7 @@ void device_init(void)
init_adc(); init_adc();
MSC_Init(); MSC_Init();
init_atomic_counter(); init_atomic_counter();
if (sizeof(AuthenticatorState) > PAGE_SIZE) if (sizeof(AuthenticatorState) > PAGE_SIZE)
{ {
@ -360,4 +402,6 @@ void device_init(void)
buf[i] = adc_rng(); buf[i] = adc_rng();
} }
dump_hex(buf,sizeof(buf)); dump_hex(buf,sizeof(buf));
} }

203
efm32boot/.cproject Normal file
View File

@ -0,0 +1,203 @@
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37
efm32boot/.project Normal file
View File

@ -0,0 +1,37 @@
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>efm32boot</name>
<comment></comment>
<projects>
</projects>
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<name>crypto</name>
<type>2</type>
<locationURI>$%7BPARENT-1-PROJECT_LOC%7D/crypto</locationURI>
</link>
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<name>efm32</name>
<type>2</type>
<locationURI>$%7BPARENT-1-PROJECT_LOC%7D/efm32</locationURI>
</link>
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2
efm32boot/.settings/com.silabs.ss.framework.ide.project.sls.core.prefs Normal file
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copiedFilesOriginState={}
eclipse.preferences.version=1

317
efm32boot/CMSIS/EFM32PG1B/startup_gcc_efm32pg1b.s Normal file
View File

@ -0,0 +1,317 @@
/* @file startup_efm32pg1b.S
* @brief startup file for Silicon Labs EFM32PG1B devices.
* For use with GCC for ARM Embedded Processors
* @version 5.2.2
* Date: 12 June 2014
*
*/
/* Copyright (c) 2011 - 2014 ARM LIMITED
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of ARM nor the names of its contributors may be used
to endorse or promote products derived from this software without
specific prior written permission.
*
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
---------------------------------------------------------------------------*/
.syntax unified
.arch armv7-m
.section .stack
.align 3
#ifdef __STACK_SIZE
.equ Stack_Size, __STACK_SIZE
#else
.equ Stack_Size, 0x00000400
#endif
.globl __StackTop
.globl __StackLimit
__StackLimit:
.space Stack_Size
.size __StackLimit, . - __StackLimit
__StackTop:
.size __StackTop, . - __StackTop
.section .heap
.align 3
#ifdef __HEAP_SIZE
.equ Heap_Size, __HEAP_SIZE
#else
.equ Heap_Size, 0x00000C00
#endif
.globl __HeapBase
.globl __HeapLimit
__HeapBase:
.if Heap_Size
.space Heap_Size
.endif
.size __HeapBase, . - __HeapBase
__HeapLimit:
.size __HeapLimit, . - __HeapLimit
.section .vectors
.align 2
.globl __Vectors
__Vectors:
.long __StackTop /* Top of Stack */
.long Reset_Handler /* Reset Handler */
.long NMI_Handler /* NMI Handler */
.long HardFault_Handler /* Hard Fault Handler */
.long MemManage_Handler /* MPU Fault Handler */
.long BusFault_Handler /* Bus Fault Handler */
.long UsageFault_Handler /* Usage Fault Handler */
.long Default_Handler /* Reserved */
.long Default_Handler /* Reserved */
.long Default_Handler /* Reserved */
.long Default_Handler /* Reserved */
.long SVC_Handler /* SVCall Handler */
.long DebugMon_Handler /* Debug Monitor Handler */
.long Default_Handler /* Reserved */
.long PendSV_Handler /* PendSV Handler */
.long SysTick_Handler /* SysTick Handler */
/* External interrupts */
.long EMU_IRQHandler /* 0 - EMU */
.long Default_Handler /* 1 - Reserved */
.long WDOG0_IRQHandler /* 2 - WDOG0 */
.long Default_Handler /* 3 - Reserved */
.long Default_Handler /* 4 - Reserved */
.long Default_Handler /* 5 - Reserved */
.long Default_Handler /* 6 - Reserved */
.long Default_Handler /* 7 - Reserved */
.long LDMA_IRQHandler /* 8 - LDMA */
.long GPIO_EVEN_IRQHandler /* 9 - GPIO_EVEN */
.long TIMER0_IRQHandler /* 10 - TIMER0 */
.long USART0_RX_IRQHandler /* 11 - USART0_RX */
.long USART0_TX_IRQHandler /* 12 - USART0_TX */
.long ACMP0_IRQHandler /* 13 - ACMP0 */
.long ADC0_IRQHandler /* 14 - ADC0 */
.long IDAC0_IRQHandler /* 15 - IDAC0 */
.long I2C0_IRQHandler /* 16 - I2C0 */
.long GPIO_ODD_IRQHandler /* 17 - GPIO_ODD */
.long TIMER1_IRQHandler /* 18 - TIMER1 */
.long USART1_RX_IRQHandler /* 19 - USART1_RX */
.long USART1_TX_IRQHandler /* 20 - USART1_TX */
.long LEUART0_IRQHandler /* 21 - LEUART0 */
.long PCNT0_IRQHandler /* 22 - PCNT0 */
.long CMU_IRQHandler /* 23 - CMU */
.long MSC_IRQHandler /* 24 - MSC */
.long CRYPTO_IRQHandler /* 25 - CRYPTO */
.long LETIMER0_IRQHandler /* 26 - LETIMER0 */
.long Default_Handler /* 27 - Reserved */
.long Default_Handler /* 28 - Reserved */
.long RTCC_IRQHandler /* 29 - RTCC */
.long Default_Handler /* 30 - Reserved */
.long CRYOTIMER_IRQHandler /* 31 - CRYOTIMER */
.long Default_Handler /* 32 - Reserved */
.long FPUEH_IRQHandler /* 33 - FPUEH */
.size __Vectors, . - __Vectors
.text
.thumb
.thumb_func
.align 2
.globl Reset_Handler
.type Reset_Handler, %function
Reset_Handler:
#ifndef __NO_SYSTEM_INIT
ldr r0, =SystemInit
blx r0
#endif
/* Firstly it copies data from read only memory to RAM. There are two schemes
* to copy. One can copy more than one sections. Another can only copy
* one section. The former scheme needs more instructions and read-only
* data to implement than the latter.
* Macro __STARTUP_COPY_MULTIPLE is used to choose between two schemes. */
#ifdef __STARTUP_COPY_MULTIPLE
/* Multiple sections scheme.
*
* Between symbol address __copy_table_start__ and __copy_table_end__,
* there are array of triplets, each of which specify:
* offset 0: LMA of start of a section to copy from
* offset 4: VMA of start of a section to copy to
* offset 8: size of the section to copy. Must be multiply of 4
*
* All addresses must be aligned to 4 bytes boundary.
*/
ldr r4, =__copy_table_start__
ldr r5, =__copy_table_end__
.L_loop0:
cmp r4, r5
bge .L_loop0_done
ldr r1, [r4]
ldr r2, [r4, #4]
ldr r3, [r4, #8]
.L_loop0_0:
subs r3, #4
ittt ge
ldrge r0, [r1, r3]
strge r0, [r2, r3]
bge .L_loop0_0
adds r4, #12
b .L_loop0
.L_loop0_done:
#else
/* Single section scheme.
*
* The ranges of copy from/to are specified by following symbols
* __etext: LMA of start of the section to copy from. Usually end of text
* __data_start__: VMA of start of the section to copy to
* __data_end__: VMA of end of the section to copy to
*
* All addresses must be aligned to 4 bytes boundary.
*/
ldr r1, =__etext
ldr r2, =__data_start__
ldr r3, =__data_end__
.L_loop1:
cmp r2, r3
ittt lt
ldrlt r0, [r1], #4
strlt r0, [r2], #4
blt .L_loop1
#endif /*__STARTUP_COPY_MULTIPLE */
/* This part of work usually is done in C library startup code. Otherwise,
* define this macro to enable it in this startup.
*
* There are two schemes too. One can clear multiple BSS sections. Another
* can only clear one section. The former is more size expensive than the
* latter.
*
* Define macro __STARTUP_CLEAR_BSS_MULTIPLE to choose the former.
* Otherwise efine macro __STARTUP_CLEAR_BSS to choose the later.
*/
#ifdef __STARTUP_CLEAR_BSS_MULTIPLE
/* Multiple sections scheme.
*
* Between symbol address __zero_table_start__ and __zero_table_end__,
* there are array of tuples specifying:
* offset 0: Start of a BSS section
* offset 4: Size of this BSS section. Must be multiply of 4
*/
ldr r3, =__zero_table_start__
ldr r4, =__zero_table_end__
.L_loop2:
cmp r3, r4
bge .L_loop2_done
ldr r1, [r3]
ldr r2, [r3, #4]
movs r0, 0
.L_loop2_0:
subs r2, #4
itt ge
strge r0, [r1, r2]
bge .L_loop2_0
adds r3, #8
b .L_loop2
.L_loop2_done:
#elif defined (__STARTUP_CLEAR_BSS)
/* Single BSS section scheme.
*
* The BSS section is specified by following symbols
* __bss_start__: start of the BSS section.
* __bss_end__: end of the BSS section.
*
* Both addresses must be aligned to 4 bytes boundary.
*/
ldr r1, =__bss_start__
ldr r2, =__bss_end__
movs r0, 0
.L_loop3:
cmp r1, r2
itt lt
strlt r0, [r1], #4
blt .L_loop3
#endif /* __STARTUP_CLEAR_BSS_MULTIPLE || __STARTUP_CLEAR_BSS */
#ifndef __START
#define __START _start
#endif
bl __START
.pool
.size Reset_Handler, . - Reset_Handler
.align 1
.thumb_func
.weak Default_Handler
.type Default_Handler, %function
Default_Handler:
b .
.size Default_Handler, . - Default_Handler
/* Macro to define default handlers. Default handler
* will be weak symbol and just dead loops. They can be
* overwritten by other handlers */
.macro def_irq_handler handler_name
.weak \handler_name
.set \handler_name, Default_Handler
.endm
def_irq_handler NMI_Handler
def_irq_handler HardFault_Handler
def_irq_handler MemManage_Handler
def_irq_handler BusFault_Handler
def_irq_handler UsageFault_Handler
def_irq_handler SVC_Handler
def_irq_handler DebugMon_Handler
def_irq_handler PendSV_Handler
def_irq_handler SysTick_Handler
def_irq_handler EMU_IRQHandler
def_irq_handler WDOG0_IRQHandler
def_irq_handler LDMA_IRQHandler
def_irq_handler GPIO_EVEN_IRQHandler
def_irq_handler TIMER0_IRQHandler
def_irq_handler USART0_RX_IRQHandler
def_irq_handler USART0_TX_IRQHandler
def_irq_handler ACMP0_IRQHandler
def_irq_handler ADC0_IRQHandler
def_irq_handler IDAC0_IRQHandler
def_irq_handler I2C0_IRQHandler
def_irq_handler GPIO_ODD_IRQHandler
def_irq_handler TIMER1_IRQHandler
def_irq_handler USART1_RX_IRQHandler
def_irq_handler USART1_TX_IRQHandler
def_irq_handler LEUART0_IRQHandler
def_irq_handler PCNT0_IRQHandler
def_irq_handler CMU_IRQHandler
def_irq_handler MSC_IRQHandler
def_irq_handler CRYPTO_IRQHandler
def_irq_handler LETIMER0_IRQHandler
def_irq_handler RTCC_IRQHandler
def_irq_handler CRYOTIMER_IRQHandler
def_irq_handler FPUEH_IRQHandler
.end

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efm32boot/CMSIS/EFM32PG1B/system_efm32pg1b.c Normal file
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/***************************************************************************//**
* @file system_efm32pg1b.c
* @brief CMSIS Cortex-M3/M4 System Layer for EFM32 devices.
* @version 5.2.2
******************************************************************************
* # License
* <b>Copyright 2017 Silicon Laboratories, Inc. http://www.silabs.com</b>
******************************************************************************
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software.@n
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.@n
* 3. This notice may not be removed or altered from any source distribution.
*
* DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Laboratories, Inc.
* has no obligation to support this Software. Silicon Laboratories, Inc. is
* providing the Software "AS IS", with no express or implied warranties of any
* kind, including, but not limited to, any implied warranties of
* merchantability or fitness for any particular purpose or warranties against
* infringement of any proprietary rights of a third party.
*
* Silicon Laboratories, Inc. will not be liable for any consequential,
* incidental, or special damages, or any other relief, or for any claim by
* any third party, arising from your use of this Software.
*
*****************************************************************************/
#include <stdint.h>
#include "em_device.h"
/*******************************************************************************
****************************** DEFINES ************************************
******************************************************************************/
/** LFRCO frequency, tuned to below frequency during manufacturing. */
#define EFM32_LFRCO_FREQ (32768UL)
/** ULFRCO frequency */
#define EFM32_ULFRCO_FREQ (1000UL)
/*******************************************************************************
************************** LOCAL VARIABLES ********************************
******************************************************************************/
/* System oscillator frequencies. These frequencies are normally constant */
/* for a target, but they are made configurable in order to allow run-time */
/* handling of different boards. The crystal oscillator clocks can be set */
/* compile time to a non-default value by defining respective EFM_nFXO_FREQ */
/* values according to board design. By defining the EFM_nFXO_FREQ to 0, */
/* one indicates that the oscillator is not present, in order to save some */
/* SW footprint. */
#ifndef EFM32_HFRCO_MAX_FREQ
/** Maximum HFRCO frequency */
#define EFM32_HFRCO_MAX_FREQ (38000000UL)
#endif
#ifndef EFM32_HFXO_FREQ
/** HFXO frequency */
#define EFM32_HFXO_FREQ (40000000UL)
#endif
#ifndef EFM32_HFRCO_STARTUP_FREQ
/** HFRCO startup frequency */
#define EFM32_HFRCO_STARTUP_FREQ (19000000UL)
#endif
/* Do not define variable if HF crystal oscillator not present */
#if (EFM32_HFXO_FREQ > 0UL)
/** @cond DO_NOT_INCLUDE_WITH_DOXYGEN */
/** System HFXO clock. */
static uint32_t SystemHFXOClock = EFM32_HFXO_FREQ;
/** @endcond (DO_NOT_INCLUDE_WITH_DOXYGEN) */
#endif
#ifndef EFM32_LFXO_FREQ
/** LFXO frequency */
#define EFM32_LFXO_FREQ (EFM32_LFRCO_FREQ)
#endif
/* Do not define variable if LF crystal oscillator not present */
#if (EFM32_LFXO_FREQ > 0UL)
/** @cond DO_NOT_INCLUDE_WITH_DOXYGEN */
/** System LFXO clock. */
static uint32_t SystemLFXOClock = 32768UL;
/** @endcond (DO_NOT_INCLUDE_WITH_DOXYGEN) */
#endif
/*******************************************************************************
************************** GLOBAL VARIABLES *******************************
******************************************************************************/
/**
* @brief
* System System Clock Frequency (Core Clock).
*
* @details
* Required CMSIS global variable that must be kept up-to-date.
*/
uint32_t SystemCoreClock = EFM32_HFRCO_STARTUP_FREQ;
/**
* @brief
* System HFRCO frequency
*
* @note
* This is an EFM32 proprietary variable, not part of the CMSIS definition.
*
* @details
* Frequency of the system HFRCO oscillator
*/
uint32_t SystemHfrcoFreq = EFM32_HFRCO_STARTUP_FREQ;
/*******************************************************************************
************************** GLOBAL FUNCTIONS *******************************
******************************************************************************/
/***************************************************************************//**
* @brief
* Get the current core clock frequency.
*
* @details
* Calculate and get the current core clock frequency based on the current
* configuration. Assuming that the SystemCoreClock global variable is
* maintained, the core clock frequency is stored in that variable as well.
* This function will however calculate the core clock based on actual HW
* configuration. It will also update the SystemCoreClock global variable.
*
* @note
* This is an EFM32 proprietary function, not part of the CMSIS definition.
*
* @return
* The current core clock frequency in Hz.
******************************************************************************/
uint32_t SystemCoreClockGet(void)
{
uint32_t ret;
uint32_t presc;
ret = SystemHFClockGet();
presc = (CMU->HFCOREPRESC & _CMU_HFCOREPRESC_PRESC_MASK) >>
_CMU_HFCOREPRESC_PRESC_SHIFT;
ret /= (presc + 1);
/* Keep CMSIS system clock variable up-to-date */
SystemCoreClock = ret;
return ret;
}
/***************************************************************************//**
* @brief
* Get the maximum core clock frequency.
*
* @note
* This is an EFM32 proprietary function, not part of the CMSIS definition.
*
* @return
* The maximum core clock frequency in Hz.
******************************************************************************/
uint32_t SystemMaxCoreClockGet(void)
{
return (EFM32_HFRCO_MAX_FREQ > EFM32_HFXO_FREQ ? \
EFM32_HFRCO_MAX_FREQ : EFM32_HFXO_FREQ);
}
/***************************************************************************//**
* @brief
* Get the current HFCLK frequency.
*
* @note
* This is an EFM32 proprietary function, not part of the CMSIS definition.
*
* @return
* The current HFCLK frequency in Hz.
******************************************************************************/
uint32_t SystemHFClockGet(void)
{
uint32_t ret;
switch (CMU->HFCLKSTATUS & _CMU_HFCLKSTATUS_SELECTED_MASK)
{
case CMU_HFCLKSTATUS_SELECTED_LFXO:
#if (EFM32_LFXO_FREQ > 0)
ret = SystemLFXOClock;
#else
/* We should not get here, since core should not be clocked. May */
/* be caused by a misconfiguration though. */
ret = 0;
#endif
break;
case CMU_HFCLKSTATUS_SELECTED_LFRCO:
ret = EFM32_LFRCO_FREQ;
break;
case CMU_HFCLKSTATUS_SELECTED_HFXO:
#if (EFM32_HFXO_FREQ > 0)
ret = SystemHFXOClock;
#else
/* We should not get here, since core should not be clocked. May */
/* be caused by a misconfiguration though. */
ret = 0;
#endif
break;
default: /* CMU_HFCLKSTATUS_SELECTED_HFRCO */
ret = SystemHfrcoFreq;
break;
}
return ret / (1U + ((CMU->HFPRESC & _CMU_HFPRESC_PRESC_MASK)
>> _CMU_HFPRESC_PRESC_SHIFT));
}
/**************************************************************************//**
* @brief
* Get high frequency crystal oscillator clock frequency for target system.
*
* @note
* This is an EFM32 proprietary function, not part of the CMSIS definition.
*
* @return
* HFXO frequency in Hz.
*****************************************************************************/
uint32_t SystemHFXOClockGet(void)
{
/* External crystal oscillator present? */
#if (EFM32_HFXO_FREQ > 0)
return SystemHFXOClock;
#else
return 0;
#endif
}
/**************************************************************************//**
* @brief
* Set high frequency crystal oscillator clock frequency for target system.
*
* @note
* This function is mainly provided for being able to handle target systems
* with different HF crystal oscillator frequencies run-time. If used, it
* should probably only be used once during system startup.
*
* @note
* This is an EFM32 proprietary function, not part of the CMSIS definition.
*
* @param[in] freq
* HFXO frequency in Hz used for target.
*****************************************************************************/
void SystemHFXOClockSet(uint32_t freq)
{
/* External crystal oscillator present? */
#if (EFM32_HFXO_FREQ > 0)
SystemHFXOClock = freq;
/* Update core clock frequency if HFXO is used to clock core */
if ((CMU->HFCLKSTATUS & _CMU_HFCLKSTATUS_SELECTED_MASK) == CMU_HFCLKSTATUS_SELECTED_HFXO)
{
/* The function will update the global variable */
SystemCoreClockGet();
}
#else
(void)freq; /* Unused parameter */
#endif
}
/**************************************************************************//**
* @brief
* Initialize the system.
*
* @details
* Do required generic HW system init.
*
* @note
* This function is invoked during system init, before the main() routine
* and any data has been initialized. For this reason, it cannot do any
* initialization of variables etc.
*****************************************************************************/
void SystemInit(void)
{
#if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
/* Set floating point coprosessor access mode. */
SCB->CPACR |= ((3UL << 10*2) | /* set CP10 Full Access */
(3UL << 11*2) ); /* set CP11 Full Access */
#endif
}
/**************************************************************************//**
* @brief
* Get low frequency RC oscillator clock frequency for target system.
*
* @note
* This is an EFM32 proprietary function, not part of the CMSIS definition.
*
* @return
* LFRCO frequency in Hz.
*****************************************************************************/
uint32_t SystemLFRCOClockGet(void)
{
/* Currently we assume that this frequency is properly tuned during */
/* manufacturing and is not changed after reset. If future requirements */
/* for re-tuning by user, we can add support for that. */
return EFM32_LFRCO_FREQ;
}
/**************************************************************************//**
* @brief
* Get ultra low frequency RC oscillator clock frequency for target system.
*
* @note
* This is an EFM32 proprietary function, not part of the CMSIS definition.
*
* @return
* ULFRCO frequency in Hz.
*****************************************************************************/
uint32_t SystemULFRCOClockGet(void)
{
/* The ULFRCO frequency is not tuned, and can be very inaccurate */
return EFM32_ULFRCO_FREQ;
}
/**************************************************************************//**
* @brief
* Get low frequency crystal oscillator clock frequency for target system.
*
* @note
* This is an EFM32 proprietary function, not part of the CMSIS definition.
*
* @return
* LFXO frequency in Hz.
*****************************************************************************/
uint32_t SystemLFXOClockGet(void)
{
/* External crystal oscillator present? */
#if (EFM32_LFXO_FREQ > 0)
return SystemLFXOClock;
#else
return 0;
#endif
}
/**************************************************************************//**
* @brief
* Set low frequency crystal oscillator clock frequency for target system.
*
* @note
* This function is mainly provided for being able to handle target systems
* with different HF crystal oscillator frequencies run-time. If used, it
* should probably only be used once during system startup.
*
* @note
* This is an EFM32 proprietary function, not part of the CMSIS definition.
*
* @param[in] freq
* LFXO frequency in Hz used for target.
*****************************************************************************/
void SystemLFXOClockSet(uint32_t freq)
{
/* External crystal oscillator present? */
#if (EFM32_LFXO_FREQ > 0)
SystemLFXOClock = freq;
/* Update core clock frequency if LFXO is used to clock core */
if ((CMU->HFCLKSTATUS & _CMU_HFCLKSTATUS_SELECTED_MASK) == CMU_HFCLKSTATUS_SELECTED_LFXO)
{
/* The function will update the global variable */
SystemCoreClockGet();
}
#else
(void)freq; /* Unused parameter */
#endif
}

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efm32boot/efm32boot.hwconf Normal file
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<?xml version="1.0" encoding="ASCII"?>
<device:XMLDevice xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:device="http://www.silabs.com/ss/hwconfig/document/device.ecore" name="EFM32PG1B200F256GM48" partId="mcu.arm.efm32.pg1.efm32pg1b200f256gm48" contextId="%DEFAULT%">
<mode name="DefaultMode">
<property object="DefaultMode" propertyId="mode.diagramLocation" value="100, 100"/>
</mode>
<modeTransition>
<property object="RESET &#x2192; DefaultMode" propertyId="modeTransition.source" value="RESET"/>
<property object="RESET &#x2192; DefaultMode" propertyId="modeTransition.target" value="DefaultMode"/>
</modeTransition>
</device:XMLDevice>

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/***************************************************************************//**
* @file em_assert.c
* @brief Assert API
* @version 5.2.2
*******************************************************************************
* # License
* <b>Copyright 2016 Silicon Laboratories, Inc. http://www.silabs.com</b>
*******************************************************************************
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*
* DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
* obligation to support this Software. Silicon Labs is providing the
* Software "AS IS", with no express or implied warranties of any kind,
* including, but not limited to, any implied warranties of merchantability
* or fitness for any particular purpose or warranties against infringement
* of any proprietary rights of a third party.
*
* Silicon Labs will not be liable for any consequential, incidental, or
* special damages, or any other relief, or for any claim by any third party,
* arising from your use of this Software.
*
******************************************************************************/
#include "em_assert.h"
#include <stdbool.h>
/***************************************************************************//**
* @addtogroup emlib
* @{
******************************************************************************/
/***************************************************************************//**
* @addtogroup ASSERT
* @{
******************************************************************************/
#if defined(DEBUG_EFM)
/***************************************************************************//**
* @brief
* EFM internal assert handling.
*
* This function is invoked through EFM_ASSERT() macro usage only, it should
* not be used explicitly.
*
* This implementation simply enters an indefinite loop, allowing
* the use of a debugger to determine cause of failure. By defining
* DEBUG_EFM_USER to the preprocessor for all files, a user defined version
* of this function must be defined and will be invoked instead, possibly
* providing output of assertion location.
*
* @note
* This function is not used unless @ref DEBUG_EFM is defined
* during preprocessing of EFM_ASSERT() usage.
*
* @param[in] file
* Name of source file where assertion failed.
*
* @param[in] line
* Line number in source file where assertion failed.
******************************************************************************/
void assertEFM(const char *file, int line)
{
(void)file; /* Unused parameter */
(void)line; /* Unused parameter */
while (true) {
}
}
#endif /* DEBUG_EFM */
/** @} (end addtogroup ASSERT) */
/** @} (end addtogroup emlib) */

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efm32boot/emlib/em_cryotimer.c Normal file
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/***************************************************************************//**
* @file em_cryotimer.c
* @brief Ultra Low Energy Timer/Counter (CRYOTIMER) peripheral API
* @version 5.2.2
*******************************************************************************
* # License
* <b>Copyright 2016 Silicon Laboratories, Inc. http://www.silabs.com</b>
*******************************************************************************
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software.@n
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.@n
* 3. This notice may not be removed or altered from any source distribution.
*
* DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
* obligation to support this Software. Silicon Labs is providing the
* Software "AS IS", with no express or implied warranties of any kind,
* including, but not limited to, any implied warranties of merchantability
* or fitness for any particular purpose or warranties against infringement
* of any proprietary rights of a third party.
*
* Silicon Labs will not be liable for any consequential, incidental, or
* special damages, or any other relief, or for any claim by any third party,
* arising from your use of this Software.
*
******************************************************************************/
#include "em_cryotimer.h"
#include "em_bus.h"
#if defined(CRYOTIMER_PRESENT) && (CRYOTIMER_COUNT == 1)
/***************************************************************************//**
* @brief
* Initialize the CRYOTIMER.
*
* @details
* Use this function to initialize the CRYOTIMER.
* Select prescaler setting and select low frequency oscillator.
* Refer to the configuration structure @ref CRYOTIMER_Init_TypeDef for more
* details.
*
* @param[in] init
* Pointer to initialization structure.
******************************************************************************/
void CRYOTIMER_Init(const CRYOTIMER_Init_TypeDef *init)
{
CRYOTIMER->PERIODSEL = (uint32_t)init->period & _CRYOTIMER_PERIODSEL_MASK;
CRYOTIMER->CTRL = ((uint32_t)init->enable << _CRYOTIMER_CTRL_EN_SHIFT)
| ((uint32_t)init->debugRun << _CRYOTIMER_CTRL_DEBUGRUN_SHIFT)
| ((uint32_t)init->osc << _CRYOTIMER_CTRL_OSCSEL_SHIFT)
| ((uint32_t)init->presc << _CRYOTIMER_CTRL_PRESC_SHIFT);
CRYOTIMER_EM4WakeupEnable(init->em4Wakeup);
}
#endif /* defined(CRYOTIMER_PRESENT) && (CRYOTIMER_COUNT > 0) */

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efm32boot/emlib/em_gpio.c Normal file
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/***************************************************************************//**
* @file em_gpio.c
* @brief General Purpose IO (GPIO) peripheral API
* devices.
* @version 5.2.2
*******************************************************************************
* # License
* <b>Copyright 2016 Silicon Laboratories, Inc. http://www.silabs.com</b>
*******************************************************************************
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*
* DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
* obligation to support this Software. Silicon Labs is providing the
* Software "AS IS", with no express or implied warranties of any kind,
* including, but not limited to, any implied warranties of merchantability
* or fitness for any particular purpose or warranties against infringement
* of any proprietary rights of a third party.
*
* Silicon Labs will not be liable for any consequential, incidental, or
* special damages, or any other relief, or for any claim by any third party,
* arising from your use of this Software.
*
******************************************************************************/
#include "em_gpio.h"
#if defined(GPIO_COUNT) && (GPIO_COUNT > 0)
/***************************************************************************//**
* @addtogroup emlib
* @{
******************************************************************************/
/***************************************************************************//**
* @addtogroup GPIO
* @brief General Purpose Input/Output (GPIO) API
* @details
* This module contains functions to control the GPIO peripheral of Silicon
* Labs 32-bit MCUs and SoCs. The GPIO peripheral is used for pin configuration
* and direct pin manipulation and sensing as well as routing for peripheral
* pin connections.
* @{
******************************************************************************/
/*******************************************************************************
******************************* DEFINES ***********************************
******************************************************************************/
/** @cond DO_NOT_INCLUDE_WITH_DOXYGEN */
/** Validation of pin typically usable in assert statements. */
#define GPIO_DRIVEMODE_VALID(mode) ((mode) <= 3)
#define GPIO_STRENGHT_VALID(strenght) (!((strenght) \
& ~(_GPIO_P_CTRL_DRIVESTRENGTH_MASK \
| _GPIO_P_CTRL_DRIVESTRENGTHALT_MASK)))
/** @endcond */
/*******************************************************************************
************************** GLOBAL FUNCTIONS *******************************
******************************************************************************/
/***************************************************************************//**
* @brief
* Sets the pin location of the debug pins (Serial Wire interface).
*
* @note
* Changing the pins used for debugging uncontrolled, may result in a lockout.
*
* @param[in] location
* The debug pin location to use (0-3).
******************************************************************************/
void GPIO_DbgLocationSet(unsigned int location)
{
#if defined (_GPIO_ROUTE_SWLOCATION_MASK)
EFM_ASSERT(location < AFCHANLOC_MAX);
GPIO->ROUTE = (GPIO->ROUTE & ~_GPIO_ROUTE_SWLOCATION_MASK)
| (location << _GPIO_ROUTE_SWLOCATION_SHIFT);
#else
(void)location;
#endif
}
#if defined (_GPIO_P_CTRL_DRIVEMODE_MASK)
/***************************************************************************//**
* @brief
* Sets the drive mode for a GPIO port.
*
* @param[in] port
* The GPIO port to access.
*
* @param[in] mode
* Drive mode to use for port.
******************************************************************************/
void GPIO_DriveModeSet(GPIO_Port_TypeDef port, GPIO_DriveMode_TypeDef mode)
{
EFM_ASSERT(GPIO_PORT_VALID(port) && GPIO_DRIVEMODE_VALID(mode));
GPIO->P[port].CTRL = (GPIO->P[port].CTRL & ~(_GPIO_P_CTRL_DRIVEMODE_MASK))
| (mode << _GPIO_P_CTRL_DRIVEMODE_SHIFT);
}
#endif
#if defined (_GPIO_P_CTRL_DRIVESTRENGTH_MASK)
/***************************************************************************//**
* @brief
* Sets the drive strength for a GPIO port.
*
* @param[in] port
* The GPIO port to access.
*
* @param[in] strength
* Drive strength to use for port.
******************************************************************************/
void GPIO_DriveStrengthSet(GPIO_Port_TypeDef port,
GPIO_DriveStrength_TypeDef strength)
{
EFM_ASSERT(GPIO_PORT_VALID(port) && GPIO_STRENGHT_VALID(strength));
BUS_RegMaskedWrite(&GPIO->P[port].CTRL,
_GPIO_P_CTRL_DRIVESTRENGTH_MASK | _GPIO_P_CTRL_DRIVESTRENGTHALT_MASK,
strength);
}
#endif
/***************************************************************************//**
* @brief
* Configure GPIO external pin interrupt.
*
* @details
* If reconfiguring a GPIO interrupt that is already enabled, it is generally
* recommended to disable it first, see GPIO_Disable().
*
* The actual GPIO interrupt handler must be in place before enabling the
* interrupt.
*
* Notice that any pending interrupt for the selected interrupt is cleared
* by this function.
*
* @note
* On series 0 devices the pin number parameter is not used. The
* pin number used on these devices is hardwired to the interrupt with the
* same number. @n
* On series 1 devices, pin number can be selected freely within a group.
* Interrupt numbers are divided into 4 groups (intNo / 4) and valid pin
* number within the interrupt groups are:
* 0: pins 0-3
* 1: pins 4-7
* 2: pins 8-11
* 3: pins 12-15
*
* @param[in] port
* The port to associate with @p pin.
*
* @param[in] pin
* The pin number on the port.
*
* @param[in] intNo
* The interrupt number to trigger.
*
* @param[in] risingEdge
* Set to true if interrupts shall be enabled on rising edge, otherwise false.
*
* @param[in] fallingEdge
* Set to true if interrupts shall be enabled on falling edge, otherwise false.
*
* @param[in] enable
* Set to true if interrupt shall be enabled after configuration completed,
* false to leave disabled. See GPIO_IntDisable() and GPIO_IntEnable().
******************************************************************************/
void GPIO_ExtIntConfig(GPIO_Port_TypeDef port,
unsigned int pin,
unsigned int intNo,
bool risingEdge,
bool fallingEdge,
bool enable)
{
uint32_t tmp = 0;
#if !defined(_GPIO_EXTIPINSELL_MASK)
(void)pin;
#endif
EFM_ASSERT(GPIO_PORT_PIN_VALID(port, pin));
#if defined(_GPIO_EXTIPINSELL_MASK)
EFM_ASSERT(GPIO_INTNO_PIN_VALID(intNo, pin));
#endif
/* There are two registers controlling the interrupt configuration:
* The EXTIPSELL register controls pins 0-7 and EXTIPSELH controls
* pins 8-15. */
if (intNo < 8) {
BUS_RegMaskedWrite(&GPIO->EXTIPSELL,
_GPIO_EXTIPSELL_EXTIPSEL0_MASK
<< (_GPIO_EXTIPSELL_EXTIPSEL1_SHIFT * intNo),
port << (_GPIO_EXTIPSELL_EXTIPSEL1_SHIFT * intNo));
} else {
tmp = intNo - 8;
BUS_RegMaskedWrite(&GPIO->EXTIPSELH,
_GPIO_EXTIPSELH_EXTIPSEL8_MASK
<< (_GPIO_EXTIPSELH_EXTIPSEL9_SHIFT * tmp),
port << (_GPIO_EXTIPSELH_EXTIPSEL9_SHIFT * tmp));
}
#if defined(_GPIO_EXTIPINSELL_MASK)
/* There are two registers controlling the interrupt/pin number mapping:
* The EXTIPINSELL register controls interrupt 0-7 and EXTIPINSELH controls
* interrupt 8-15. */
if (intNo < 8) {
BUS_RegMaskedWrite(&GPIO->EXTIPINSELL,
_GPIO_EXTIPINSELL_EXTIPINSEL0_MASK
<< (_GPIO_EXTIPINSELL_EXTIPINSEL1_SHIFT * intNo),
((pin % 4) & _GPIO_EXTIPINSELL_EXTIPINSEL0_MASK)
<< (_GPIO_EXTIPINSELL_EXTIPINSEL1_SHIFT * intNo));
} else {
BUS_RegMaskedWrite(&GPIO->EXTIPINSELH,
_GPIO_EXTIPINSELH_EXTIPINSEL8_MASK
<< (_GPIO_EXTIPINSELH_EXTIPINSEL9_SHIFT * tmp),
((pin % 4) & _GPIO_EXTIPINSELH_EXTIPINSEL8_MASK)
<< (_GPIO_EXTIPSELH_EXTIPSEL9_SHIFT * tmp));
}
#endif
/* Enable/disable rising edge */
BUS_RegBitWrite(&(GPIO->EXTIRISE), intNo, risingEdge);
/* Enable/disable falling edge */
BUS_RegBitWrite(&(GPIO->EXTIFALL), intNo, fallingEdge);
/* Clear any pending interrupt */
GPIO->IFC = 1 << intNo;
/* Finally enable/disable interrupt */
BUS_RegBitWrite(&(GPIO->IEN), intNo, enable);
}
/***************************************************************************//**
* @brief
* Set the mode for a GPIO pin.
*
* @param[in] port
* The GPIO port to access.
*
* @param[in] pin
* The pin number in the port.
*
* @param[in] mode
* The desired pin mode.
*
* @param[in] out
* Value to set for pin in DOUT register. The DOUT setting is important for
* even some input mode configurations, determining pull-up/down direction.
******************************************************************************/
void GPIO_PinModeSet(GPIO_Port_TypeDef port,
unsigned int pin,
GPIO_Mode_TypeDef mode,
unsigned int out)
{
EFM_ASSERT(GPIO_PORT_PIN_VALID(port, pin));
/* If disabling pin, do not modify DOUT in order to reduce chance for */
/* glitch/spike (may not be sufficient precaution in all use cases) */
if (mode != gpioModeDisabled) {
if (out) {
GPIO_PinOutSet(port, pin);
} else {
GPIO_PinOutClear(port, pin);
}
}
/* There are two registers controlling the pins for each port. The MODEL
* register controls pins 0-7 and MODEH controls pins 8-15. */
if (pin < 8) {
GPIO->P[port].MODEL = (GPIO->P[port].MODEL & ~(0xFu << (pin * 4)))
| (mode << (pin * 4));
} else {
GPIO->P[port].MODEH = (GPIO->P[port].MODEH & ~(0xFu << ((pin - 8) * 4)))
| (mode << ((pin - 8) * 4));
}
if (mode == gpioModeDisabled) {
if (out) {
GPIO_PinOutSet(port, pin);
} else {
GPIO_PinOutClear(port, pin);
}
}
}
/***************************************************************************//**
* @brief
* Get the mode for a GPIO pin.
*
* @param[in] port
* The GPIO port to access.
*
* @param[in] pin
* The pin number in the port.
*
* @return
* The pin mode.
******************************************************************************/
GPIO_Mode_TypeDef GPIO_PinModeGet(GPIO_Port_TypeDef port,
unsigned int pin)
{
EFM_ASSERT(GPIO_PORT_PIN_VALID(port, pin));
if (pin < 8) {
return (GPIO_Mode_TypeDef) ((GPIO->P[port].MODEL >> (pin * 4)) & 0xF);
} else {
return (GPIO_Mode_TypeDef) ((GPIO->P[port].MODEH >> ((pin - 8) * 4)) & 0xF);
}
}
#if defined(_GPIO_EM4WUEN_MASK)
/**************************************************************************//**
* @brief
* Enable GPIO pin wake-up from EM4. When the function exits,
* EM4 mode can be safely entered.
*
* @note
* It is assumed that the GPIO pin modes are set correctly.
* Valid modes are @ref gpioModeInput and @ref gpioModeInputPull.
*
* @param[in] pinmask
* Bitmask containing the bitwise logic OR of which GPIO pin(s) to enable.
* Refer to Reference Manuals for pinmask to GPIO port/pin mapping.
* @param[in] polaritymask
* Bitmask containing the bitwise logic OR of GPIO pin(s) wake-up polarity.
* Refer to Reference Manuals for pinmask to GPIO port/pin mapping.
*****************************************************************************/
void GPIO_EM4EnablePinWakeup(uint32_t pinmask, uint32_t polaritymask)
{
EFM_ASSERT((pinmask & ~_GPIO_EM4WUEN_MASK) == 0);
#if defined(_GPIO_EM4WUPOL_MASK)
EFM_ASSERT((polaritymask & ~_GPIO_EM4WUPOL_MASK) == 0);
GPIO->EM4WUPOL &= ~pinmask; /* Set wakeup polarity */
GPIO->EM4WUPOL |= pinmask & polaritymask;
#elif defined(_GPIO_EXTILEVEL_MASK)
EFM_ASSERT((polaritymask & ~_GPIO_EXTILEVEL_MASK) == 0);
GPIO->EXTILEVEL &= ~pinmask;
GPIO->EXTILEVEL |= pinmask & polaritymask;
#endif
GPIO->EM4WUEN |= pinmask; /* Enable wakeup */
GPIO_EM4SetPinRetention(true); /* Enable pin retention */
#if defined(_GPIO_CMD_EM4WUCLR_MASK)
GPIO->CMD = GPIO_CMD_EM4WUCLR; /* Clear wake-up logic */
#elif defined(_GPIO_IFC_EM4WU_MASK)
GPIO_IntClear(pinmask);
#endif
}
#endif
/** @} (end addtogroup GPIO) */
/** @} (end addtogroup emlib) */
#endif /* defined(GPIO_COUNT) && (GPIO_COUNT > 0) */

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/***************************************************************************//**
* @file em_system.c
* @brief System Peripheral API
* @version 5.2.2
*******************************************************************************
* # License
* <b>Copyright 2016 Silicon Laboratories, Inc. http://www.silabs.com</b>
*******************************************************************************
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*
* DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
* obligation to support this Software. Silicon Labs is providing the
* Software "AS IS", with no express or implied warranties of any kind,
* including, but not limited to, any implied warranties of merchantability
* or fitness for any particular purpose or warranties against infringement
* of any proprietary rights of a third party.
*
* Silicon Labs will not be liable for any consequential, incidental, or
* special damages, or any other relief, or for any claim by any third party,
* arising from your use of this Software.
*
******************************************************************************/
#include "em_system.h"
#include "em_assert.h"
#include <stddef.h>
/***************************************************************************//**
* @addtogroup emlib
* @{
******************************************************************************/
/***************************************************************************//**
* @addtogroup SYSTEM
* @{
******************************************************************************/
/*******************************************************************************
************************** GLOBAL FUNCTIONS *******************************
******************************************************************************/
/***************************************************************************//**
* @brief
* Get chip major/minor revision.
*
* @param[out] rev
* Location to place chip revision info.
******************************************************************************/
void SYSTEM_ChipRevisionGet(SYSTEM_ChipRevision_TypeDef *rev)
{
uint8_t tmp;
EFM_ASSERT(rev);
/* CHIP FAMILY bit [5:2] */
tmp = (((ROMTABLE->PID1 & _ROMTABLE_PID1_FAMILYMSB_MASK) >> _ROMTABLE_PID1_FAMILYMSB_SHIFT) << 2);
/* CHIP FAMILY bit [1:0] */
tmp |= ((ROMTABLE->PID0 & _ROMTABLE_PID0_FAMILYLSB_MASK) >> _ROMTABLE_PID0_FAMILYLSB_SHIFT);
rev->family = tmp;
/* CHIP MAJOR bit [3:0] */
rev->major = (ROMTABLE->PID0 & _ROMTABLE_PID0_REVMAJOR_MASK) >> _ROMTABLE_PID0_REVMAJOR_SHIFT;
/* CHIP MINOR bit [7:4] */
tmp = (((ROMTABLE->PID2 & _ROMTABLE_PID2_REVMINORMSB_MASK) >> _ROMTABLE_PID2_REVMINORMSB_SHIFT) << 4);
/* CHIP MINOR bit [3:0] */
tmp |= ((ROMTABLE->PID3 & _ROMTABLE_PID3_REVMINORLSB_MASK) >> _ROMTABLE_PID3_REVMINORLSB_SHIFT);
rev->minor = tmp;
}
/***************************************************************************//**
* @brief
* Get factory calibration value for a given peripheral register.
*
* @param[in] regAddress
* Peripheral calibration register address to get calibration value for. If
* a calibration value is found then this register is updated with the
* calibration value.
*
* @return
* True if a calibration value exists, false otherwise.
******************************************************************************/
bool SYSTEM_GetCalibrationValue(volatile uint32_t *regAddress)
{
SYSTEM_CalAddrVal_TypeDef * p, * end;
p = (SYSTEM_CalAddrVal_TypeDef *)(DEVINFO_BASE & 0xFFFFF000);
end = (SYSTEM_CalAddrVal_TypeDef *)DEVINFO_BASE;
for (; p < end; p++) {
if (p->address == 0xFFFFFFFF) {
/* Found table terminator */
return false;
}
if (p->address == (uint32_t)regAddress) {
*regAddress = p->calValue;
return true;
}
}
/* Nothing found for regAddress */
return false;
}
/** @} (end addtogroup SYSTEM) */
/** @} (end addtogroup emlib) */

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/*
* app.h
*
* Created on: Jun 26, 2018
* Author: conor
*/
#ifndef SRC_APP_H_
#define SRC_APP_H_
#define IS_BOOTLOADER
#define PRINTING_USE_VCOM
#define USING_DEV_BOARD
#define BRIDGE_TO_WALLET
void printing_init();
#endif /* SRC_APP_H_ */

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/*
* Wrapper for crypto implementation on device
*
* */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "util.h"
#include "crypto.h"
#ifdef USE_SOFTWARE_IMPLEMENTATION
#include "sha256.h"
#include "uECC.h"
#include "aes.h"
#include "ctap.h"
#include "device.h"
#include "app.h"
#if defined(USING_PC) || defined(IS_BOOTLOADER)
typedef enum
{
MBEDTLS_ECP_DP_NONE = 0,
MBEDTLS_ECP_DP_SECP192R1, /*!< 192-bits NIST curve */
MBEDTLS_ECP_DP_SECP224R1, /*!< 224-bits NIST curve */
MBEDTLS_ECP_DP_SECP256R1, /*!< 256-bits NIST curve */
MBEDTLS_ECP_DP_SECP384R1, /*!< 384-bits NIST curve */
MBEDTLS_ECP_DP_SECP521R1, /*!< 521-bits NIST curve */
MBEDTLS_ECP_DP_BP256R1, /*!< 256-bits Brainpool curve */
MBEDTLS_ECP_DP_BP384R1, /*!< 384-bits Brainpool curve */
MBEDTLS_ECP_DP_BP512R1, /*!< 512-bits Brainpool curve */
MBEDTLS_ECP_DP_CURVE25519, /*!< Curve25519 */
MBEDTLS_ECP_DP_SECP192K1, /*!< 192-bits "Koblitz" curve */
MBEDTLS_ECP_DP_SECP224K1, /*!< 224-bits "Koblitz" curve */
MBEDTLS_ECP_DP_SECP256K1, /*!< 256-bits "Koblitz" curve */
} mbedtls_ecp_group_id;
#endif
const uint8_t attestation_cert_der[];
const uint16_t attestation_cert_der_size;
const uint8_t attestation_key[];
const uint16_t attestation_key_size;
static SHA256_CTX sha256_ctx;
static const struct uECC_Curve_t * _es256_curve = NULL;
static const uint8_t * _signing_key = NULL;
static int _key_len = 0;
// Secrets for testing only
static uint8_t master_secret[32] = "\x00\x11\x22\x33\x44\x55\x66\x77\x88\x99\xaa\xbb\xcc\xdd\xee\xff"
"\xff\xee\xdd\xcc\xbb\xaa\x99\x88\x77\x66\x55\x44\x33\x22\x11\x00";
static uint8_t transport_secret[32] = "\x10\x01\x22\x33\x44\x55\x66\x77\x87\x90\x0a\xbb\x3c\xd8\xee\xff"
"\xff\xee\x8d\x1c\x3b\xfa\x99\x88\x77\x86\x55\x44\xd3\xff\x33\x00";
void crypto_sha256_init()
{
sha256_init(&sha256_ctx);
}
void crypto_reset_master_secret()
{
ctap_generate_rng(master_secret, 32);
}
void crypto_sha256_update(uint8_t * data, size_t len)
{
sha256_update(&sha256_ctx, data, len);
}
void crypto_sha256_update_secret()
{
sha256_update(&sha256_ctx, master_secret, 32);
}
void crypto_sha256_final(uint8_t * hash)
{
sha256_final(&sha256_ctx, hash);
}
void crypto_sha256_hmac_init(uint8_t * key, uint32_t klen, uint8_t * hmac)
{
uint8_t buf[64];
int i;
memset(buf, 0, sizeof(buf));
if (key == CRYPTO_MASTER_KEY)
{
key = master_secret;
klen = sizeof(master_secret);
}
if(klen > 64)
{
printf("Error, key size must be <= 64\n");
exit(1);
}
memmove(buf, key, klen);
for (i = 0; i < sizeof(buf); i++)
{
buf[i] = buf[i] ^ 0x36;
}
crypto_sha256_init();
crypto_sha256_update(buf, 64);
}
void crypto_sha256_hmac_final(uint8_t * key, uint32_t klen, uint8_t * hmac)
{
uint8_t buf[64];
int i;
crypto_sha256_final(hmac);
memset(buf, 0, sizeof(buf));
if (key == CRYPTO_MASTER_KEY)
{
key = master_secret;
klen = sizeof(master_secret);
}
if(klen > 64)
{
printf("Error, key size must be <= 64\n");
exit(1);
}
memmove(buf, key, klen);
for (i = 0; i < sizeof(buf); i++)
{
buf[i] = buf[i] ^ 0x5c;
}
crypto_sha256_init();
crypto_sha256_update(buf, 64);
crypto_sha256_update(hmac, 32);
crypto_sha256_final(hmac);
}
void crypto_ecc256_init()
{
uECC_set_rng((uECC_RNG_Function)ctap_generate_rng);
_es256_curve = uECC_secp256r1();
}
void crypto_ecc256_load_attestation_key()
{
_signing_key = attestation_key;
_key_len = 32;
}
void crypto_ecc256_sign(uint8_t * data, int len, uint8_t * sig)
{
if ( uECC_sign(_signing_key, data, len, sig, _es256_curve) == 0)
{
printf("error, uECC failed\n");
exit(1);
}
}
void crypto_ecc256_load_key(uint8_t * data, int len, uint8_t * data2, int len2)
{
static uint8_t privkey[32];
generate_private_key(data,len,data2,len2,privkey);
_signing_key = privkey;
_key_len = 32;
}
void crypto_ecdsa_sign(uint8_t * data, int len, uint8_t * sig, int MBEDTLS_ECP_ID)
{
const struct uECC_Curve_t * curve = NULL;
switch(MBEDTLS_ECP_ID)
{
case MBEDTLS_ECP_DP_SECP256R1:
curve = uECC_secp256r1();
if (_key_len != 32) goto fail;
break;
default:
printf("error, invalid ECDSA alg specifier\n");
exit(1);
}
if ( uECC_sign(_signing_key, data, len, sig, curve) == 0)
{
printf("error, uECC failed\n");
exit(1);
}
return;
fail:
printf("error, invalid key length\n");
exit(1);
}
void generate_private_key(uint8_t * data, int len, uint8_t * data2, int len2, uint8_t * privkey)
{
crypto_sha256_hmac_init(CRYPTO_MASTER_KEY, 0, privkey);
crypto_sha256_update(data, len);
crypto_sha256_update(data2, len2);
crypto_sha256_update(master_secret, 32);
crypto_sha256_hmac_final(CRYPTO_MASTER_KEY, 0, privkey);
}
/*int uECC_compute_public_key(const uint8_t *private_key, uint8_t *public_key, uECC_Curve curve);*/
void crypto_ecc256_derive_public_key(uint8_t * data, int len, uint8_t * x, uint8_t * y)
{
uint8_t privkey[32];
uint8_t pubkey[64];
generate_private_key(data,len,NULL,0,privkey);
memset(pubkey,0,sizeof(pubkey));
uECC_compute_public_key(privkey, pubkey, _es256_curve);
memmove(x,pubkey,32);
memmove(y,pubkey+32,32);
}
void crypto_load_external_key(uint8_t * key, int len)
{
_signing_key = key;
_key_len = len;
}
void crypto_ecc256_make_key_pair(uint8_t * pubkey, uint8_t * privkey)
{
if (uECC_make_key(pubkey, privkey, _es256_curve) != 1)
{
printf("Error, uECC_make_key failed\n");
exit(1);
}
}
void crypto_ecc256_shared_secret(const uint8_t * pubkey, const uint8_t * privkey, uint8_t * shared_secret)
{
if (uECC_shared_secret(pubkey, privkey, shared_secret, _es256_curve) != 1)
{
printf("Error, uECC_shared_secret failed\n");
exit(1);
}
}
struct AES_ctx aes_ctx;
void crypto_aes256_init(uint8_t * key, uint8_t * nonce)
{
if (key == CRYPTO_TRANSPORT_KEY)
{
AES_init_ctx(&aes_ctx, transport_secret);
}
else
{
AES_init_ctx(&aes_ctx, key);
}
if (nonce == NULL)
{
memset(aes_ctx.Iv, 0, 16);
}
else
{
memmove(aes_ctx.Iv, nonce, 16);
}
}
// prevent round key recomputation
void crypto_aes256_reset_iv(uint8_t * nonce)
{
if (nonce == NULL)
{
memset(aes_ctx.Iv, 0, 16);
}
else
{
memmove(aes_ctx.Iv, nonce, 16);
}
}
void crypto_aes256_decrypt(uint8_t * buf, int length)
{
AES_CBC_decrypt_buffer(&aes_ctx, buf, length);
}
void crypto_aes256_encrypt(uint8_t * buf, int length)
{
AES_CBC_encrypt_buffer(&aes_ctx, buf, length);
}
const uint8_t attestation_cert_der[] =
"\x30\x82\x01\xfb\x30\x82\x01\xa1\xa0\x03\x02\x01\x02\x02\x01\x00\x30\x0a\x06\x08"
"\x2a\x86\x48\xce\x3d\x04\x03\x02\x30\x2c\x31\x0b\x30\x09\x06\x03\x55\x04\x06\x13"
"\x02\x55\x53\x31\x0b\x30\x09\x06\x03\x55\x04\x08\x0c\x02\x4d\x44\x31\x10\x30\x0e"
"\x06\x03\x55\x04\x0a\x0c\x07\x54\x45\x53\x54\x20\x43\x41\x30\x20\x17\x0d\x31\x38"
"\x30\x35\x31\x30\x30\x33\x30\x36\x32\x30\x5a\x18\x0f\x32\x30\x36\x38\x30\x34\x32"
"\x37\x30\x33\x30\x36\x32\x30\x5a\x30\x7c\x31\x0b\x30\x09\x06\x03\x55\x04\x06\x13"
"\x02\x55\x53\x31\x0b\x30\x09\x06\x03\x55\x04\x08\x0c\x02\x4d\x44\x31\x0f\x30\x0d"
"\x06\x03\x55\x04\x07\x0c\x06\x4c\x61\x75\x72\x65\x6c\x31\x15\x30\x13\x06\x03\x55"
"\x04\x0a\x0c\x0c\x54\x45\x53\x54\x20\x43\x4f\x4d\x50\x41\x4e\x59\x31\x22\x30\x20"
"\x06\x03\x55\x04\x0b\x0c\x19\x41\x75\x74\x68\x65\x6e\x74\x69\x63\x61\x74\x6f\x72"
"\x20\x41\x74\x74\x65\x73\x74\x61\x74\x69\x6f\x6e\x31\x14\x30\x12\x06\x03\x55\x04"
"\x03\x0c\x0b\x63\x6f\x6e\x6f\x72\x70\x70\x2e\x63\x6f\x6d\x30\x59\x30\x13\x06\x07"
"\x2a\x86\x48\xce\x3d\x02\x01\x06\x08\x2a\x86\x48\xce\x3d\x03\x01\x07\x03\x42\x00"
"\x04\x45\xa9\x02\xc1\x2e\x9c\x0a\x33\xfa\x3e\x84\x50\x4a\xb8\x02\xdc\x4d\xb9\xaf"
"\x15\xb1\xb6\x3a\xea\x8d\x3f\x03\x03\x55\x65\x7d\x70\x3f\xb4\x02\xa4\x97\xf4\x83"
"\xb8\xa6\xf9\x3c\xd0\x18\xad\x92\x0c\xb7\x8a\x5a\x3e\x14\x48\x92\xef\x08\xf8\xca"
"\xea\xfb\x32\xab\x20\xa3\x62\x30\x60\x30\x46\x06\x03\x55\x1d\x23\x04\x3f\x30\x3d"
"\xa1\x30\xa4\x2e\x30\x2c\x31\x0b\x30\x09\x06\x03\x55\x04\x06\x13\x02\x55\x53\x31"
"\x0b\x30\x09\x06\x03\x55\x04\x08\x0c\x02\x4d\x44\x31\x10\x30\x0e\x06\x03\x55\x04"
"\x0a\x0c\x07\x54\x45\x53\x54\x20\x43\x41\x82\x09\x00\xf7\xc9\xec\x89\xf2\x63\x94"
"\xd9\x30\x09\x06\x03\x55\x1d\x13\x04\x02\x30\x00\x30\x0b\x06\x03\x55\x1d\x0f\x04"
"\x04\x03\x02\x04\xf0\x30\x0a\x06\x08\x2a\x86\x48\xce\x3d\x04\x03\x02\x03\x48\x00"
"\x30\x45\x02\x20\x18\x38\xb0\x45\x03\x69\xaa\xa7\xb7\x38\x62\x01\xaf\x24\x97\x5e"
"\x7e\x74\x64\x1b\xa3\x7b\xf7\xe6\xd3\xaf\x79\x28\xdb\xdc\xa5\x88\x02\x21\x00\xcd"
"\x06\xf1\xe3\xab\x16\x21\x8e\xd8\xc0\x14\xaf\x09\x4f\x5b\x73\xef\x5e\x9e\x4b\xe7"
"\x35\xeb\xdd\x9b\x6d\x8f\x7d\xf3\xc4\x3a\xd7";
const uint16_t attestation_cert_der_size = sizeof(attestation_cert_der)-1;
const uint8_t attestation_key[] = "\xcd\x67\xaa\x31\x0d\x09\x1e\xd1\x6e\x7e\x98\x92\xaa\x07\x0e\x19\x94\xfc\xd7\x14\xae\x7c\x40\x8f\xb9\x46\xb7\x2e\x5f\xe7\x5d\x30";
const uint16_t attestation_key_size = sizeof(attestation_key)-1;
#else
#error "No crypto implementation defined"
#endif

28
efm32boot/src/main.c Normal file
View File

@ -0,0 +1,28 @@
#include "em_device.h"
#include "em_chip.h"
#include "device.h"
#include "app.h"
#include "InitDevice.h"
void bootloader_init(void);
int main(void)
{
/* Chip errata */
CHIP_Init();
EMU_enter_DefaultMode_from_RESET();
CMU_enter_DefaultMode_from_RESET();
// ADC0_enter_DefaultMode_from_RESET();
USART0_enter_DefaultMode_from_RESET();
USART1_enter_DefaultMode_from_RESET();
LDMA_enter_DefaultMode_from_RESET();
CRYOTIMER_enter_DefaultMode_from_RESET();
PORTIO_enter_DefaultMode_from_RESET();
bootloader_init();
/* Infinite loop */
while (1) {
}
}

4
fido2/ctap.c
View File

@ -1404,7 +1404,7 @@ static uint16_t key_addr_offset(int index)
uint16_t ctap_key_len(uint8_t index) uint16_t ctap_key_len(uint8_t index)
{ {
int i = ctap_keys_stored(); int i = ctap_keys_stored();
if (i >= MAX_KEYS || index >= MAX_KEYS) if (index >= i || index >= MAX_KEYS)
{ {
return 0; return 0;
} }
@ -1449,7 +1449,7 @@ int8_t ctap_load_key(uint8_t index, uint8_t * key)
int i = ctap_keys_stored(); int i = ctap_keys_stored();
uint16_t offset; uint16_t offset;
uint16_t len; uint16_t len;
if (i >= MAX_KEYS || index >= MAX_KEYS) if (index >= i || index >= MAX_KEYS)
{ {
return ERR_NO_KEY_SPACE; return ERR_NO_KEY_SPACE;
} }

4
fido2/main.c
View File

@ -24,10 +24,10 @@ int main(int argc, char * argv[])
set_logging_mask( set_logging_mask(
/*0*/ /*0*/
// TAG_GEN| TAG_GEN|
/*TAG_MC |*/ /*TAG_MC |*/
/*TAG_GA |*/ /*TAG_GA |*/
/*TAG_WALLET |*/ TAG_WALLET |
TAG_STOR | TAG_STOR |
/*TAG_CP |*/ /*TAG_CP |*/
// TAG_CTAP| // TAG_CTAP|

2
fido2/wallet.c
View File

@ -15,7 +15,7 @@
#include "storage.h" #include "storage.h"
#include "device.h" #include "device.h"
#ifdef USING_PC #if defined(USING_PC) || defined(IS_BOOTLOADER)
typedef enum typedef enum
{ {
MBEDTLS_ECP_DP_NONE = 0, MBEDTLS_ECP_DP_NONE = 0,