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efm8 testing printing

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This commit is contained in:
Conor Patrick
2018-07-02 23:10:05 -04:00
parent 0dab248a40
commit 40b11a945c
9 changed files with 249 additions and 31 deletions
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135
efm8/src/InitDevice.c
View File

@@ -33,10 +33,12 @@ extern void enter_DefaultMode_from_RESET(void) {
PBCFG_0_enter_DefaultMode_from_RESET();
CIP51_0_enter_DefaultMode_from_RESET();
CLOCK_0_enter_DefaultMode_from_RESET();
TIMER01_0_enter_DefaultMode_from_RESET();
TIMER16_2_enter_DefaultMode_from_RESET();
TIMER16_3_enter_DefaultMode_from_RESET();
TIMER_SETUP_0_enter_DefaultMode_from_RESET();
UARTE_1_enter_DefaultMode_from_RESET();
SPI_0_enter_DefaultMode_from_RESET();
UART_0_enter_DefaultMode_from_RESET();
INTERRUPT_0_enter_DefaultMode_from_RESET();
USBLIB_0_enter_DefaultMode_from_RESET();
// Restore the SFRPAGE
@@ -75,7 +77,6 @@ extern void INTERRUPT_0_enter_DefaultMode_from_RESET(void) {
- Disable Timer 2 interrupt
- Disable UART0 interrupt
***********************************************************************/
SFRPAGE = 0x00;
IE = IE_EA__ENABLED | IE_EX0__DISABLED | IE_EX1__DISABLED
| IE_ESPI0__DISABLED | IE_ET0__DISABLED | IE_ET1__DISABLED
| IE_ET2__DISABLED | IE_ES0__DISABLED;
@@ -144,12 +145,12 @@ extern void PBCFG_0_enter_DefaultMode_from_RESET(void) {
/***********************************************************************
- Weak Pullups enabled
- Crossbar enabled
- UART1 TX1 RX1 routed to Port pins
- UART1 I/O unavailable at Port pin
- UART1 RTS1 unavailable at Port pin
- UART1 CTS1 unavailable at Port pin
***********************************************************************/
XBR2 = XBR2_WEAKPUD__PULL_UPS_ENABLED | XBR2_XBARE__ENABLED
| XBR2_URT1E__ENABLED | XBR2_URT1RTSE__DISABLED
| XBR2_URT1E__DISABLED | XBR2_URT1RTSE__DISABLED
| XBR2_URT1CTSE__DISABLED;
// [XBR2 - Port I/O Crossbar 2]$
@@ -157,6 +158,19 @@ extern void PBCFG_0_enter_DefaultMode_from_RESET(void) {
// [PRTDRV - Port Drive Strength]$
// $[XBR0 - Port I/O Crossbar 0]
/***********************************************************************
- UART0 TX0, RX0 routed to Port pins P0.4 and P0.5
- SPI I/O routed to Port pins
- SMBus 0 I/O unavailable at Port pins
- CP0 unavailable at Port pin
- Asynchronous CP0 unavailable at Port pin
- CP1 unavailable at Port pin
- Asynchronous CP1 unavailable at Port pin
- SYSCLK unavailable at Port pin
***********************************************************************/
XBR0 = XBR0_URT0E__ENABLED | XBR0_SPI0E__ENABLED | XBR0_SMB0E__DISABLED
| XBR0_CP0E__DISABLED | XBR0_CP0AE__DISABLED | XBR0_CP1E__DISABLED
| XBR0_CP1AE__DISABLED | XBR0_SYSCKE__DISABLED;
// [XBR0 - Port I/O Crossbar 0]$
// $[XBR1 - Port I/O Crossbar 1]
@@ -167,27 +181,41 @@ extern void PBCFG_0_enter_DefaultMode_from_RESET(void) {
extern void TIMER_SETUP_0_enter_DefaultMode_from_RESET(void) {
// $[CKCON0 - Clock Control 0]
/***********************************************************************
- System clock divided by 12
- System clock divided by 4
- Counter/Timer 0 uses the clock defined by the prescale field, SCA
- Timer 2 high byte uses the clock defined by T2XCLK in TMR2CN0
- Timer 2 low byte uses the system clock
- Timer 3 high byte uses the clock defined by T3XCLK in TMR3CN0
- Timer 3 low byte uses the system clock
- Timer 1 uses the clock defined by the prescale field, SCA
- Timer 1 uses the system clock
***********************************************************************/
CKCON0 = CKCON0_SCA__SYSCLK_DIV_12 | CKCON0_T0M__PRESCALE
CKCON0 = CKCON0_SCA__SYSCLK_DIV_4 | CKCON0_T0M__PRESCALE
| CKCON0_T2MH__EXTERNAL_CLOCK | CKCON0_T2ML__SYSCLK
| CKCON0_T3MH__EXTERNAL_CLOCK | CKCON0_T3ML__SYSCLK
| CKCON0_T1M__PRESCALE;
| CKCON0_T1M__SYSCLK;
// [CKCON0 - Clock Control 0]$
// $[CKCON1 - Clock Control 1]
// [CKCON1 - Clock Control 1]$
// $[TMOD - Timer 0/1 Mode]
/***********************************************************************
- Mode 0, 13-bit Counter/Timer
- Mode 2, 8-bit Counter/Timer with Auto-Reload
- Timer Mode
- Timer 0 enabled when TR0 = 1 irrespective of INT0 logic level
- Timer Mode
- Timer 1 enabled when TR1 = 1 irrespective of INT1 logic level
***********************************************************************/
TMOD = TMOD_T0M__MODE0 | TMOD_T1M__MODE2 | TMOD_CT0__TIMER
| TMOD_GATE0__DISABLED | TMOD_CT1__TIMER | TMOD_GATE1__DISABLED;
// [TMOD - Timer 0/1 Mode]$
// $[TCON - Timer 0/1 Control]
/***********************************************************************
- Start Timer 1 running
***********************************************************************/
TCON |= TCON_TR1__RUN;
// [TCON - Timer 0/1 Control]$
}
@@ -196,10 +224,10 @@ extern void UARTE_1_enter_DefaultMode_from_RESET(void) {
// $[SBCON1 - UART1 Baud Rate Generator Control]
/***********************************************************************
- Enable the baud rate generator
- Prescaler = 1
- Prescaler = 8
***********************************************************************/
SFRPAGE = 0x20;
SBCON1 = SBCON1_BREN__ENABLED | SBCON1_BPS__DIV_BY_1;
SBCON1 = SBCON1_BREN__ENABLED | SBCON1_BPS__DIV_BY_8;
// [SBCON1 - UART1 Baud Rate Generator Control]$
// $[SMOD1 - UART1 Mode]
@@ -217,9 +245,9 @@ extern void UARTE_1_enter_DefaultMode_from_RESET(void) {
// $[SBRLL1 - UART1 Baud Rate Generator Low Byte]
/***********************************************************************
- UART1 Baud Rate Reload Low = 0x30
- UART1 Baud Rate Reload Low = 0xE6
***********************************************************************/
SBRLL1 = (0x30 << SBRLL1_BRL__SHIFT);
SBRLL1 = (0xE6 << SBRLL1_BRL__SHIFT);
// [SBRLL1 - UART1 Baud Rate Generator Low Byte]$
// $[UART1LIN - UART1 LIN Configuration]
@@ -336,12 +364,12 @@ extern void PORTS_0_enter_DefaultMode_from_RESET(void) {
- P0.4 output is push-pull
- P0.5 output is open-drain
- P0.6 output is open-drain
- P0.7 output is open-drain
- P0.7 output is push-pull
***********************************************************************/
P0MDOUT = P0MDOUT_B0__OPEN_DRAIN | P0MDOUT_B1__OPEN_DRAIN
| P0MDOUT_B2__OPEN_DRAIN | P0MDOUT_B3__OPEN_DRAIN
| P0MDOUT_B4__PUSH_PULL | P0MDOUT_B5__OPEN_DRAIN
| P0MDOUT_B6__OPEN_DRAIN | P0MDOUT_B7__OPEN_DRAIN;
| P0MDOUT_B6__OPEN_DRAIN | P0MDOUT_B7__PUSH_PULL;
// [P0MDOUT - Port 0 Output Mode]$
// $[P0MDIN - Port 0 Input Mode]
@@ -411,6 +439,13 @@ extern void PORTS_1_enter_DefaultMode_from_RESET(void) {
extern void PORTS_2_enter_DefaultMode_from_RESET(void) {
// $[P2 - Port 2 Pin Latch]
/***********************************************************************
- P2.0 is low. Set P2.0 to drive low
- P2.1 is high. Set P2.1 to drive or float high
- P2.2 is high. Set P2.2 to drive or float high
- P2.3 is high. Set P2.3 to drive or float high
***********************************************************************/
P2 = P2_B0__LOW | P2_B1__HIGH | P2_B2__HIGH | P2_B3__HIGH;
// [P2 - Port 2 Pin Latch]$
// $[P2MDOUT - Port 2 Output Mode]
@@ -438,3 +473,75 @@ extern void PORTS_2_enter_DefaultMode_from_RESET(void) {
}
extern void TIMER01_0_enter_DefaultMode_from_RESET(void) {
// $[Timer Initialization]
//Save Timer Configuration
uint8_t TCON_save;
TCON_save = TCON;
//Stop Timers
TCON &= ~TCON_TR0__BMASK & ~TCON_TR1__BMASK;
// [Timer Initialization]$
// $[TH0 - Timer 0 High Byte]
// [TH0 - Timer 0 High Byte]$
// $[TL0 - Timer 0 Low Byte]
// [TL0 - Timer 0 Low Byte]$
// $[TH1 - Timer 1 High Byte]
/***********************************************************************
- Timer 1 High Byte = 0x30
***********************************************************************/
TH1 = (0x30 << TH1_TH1__SHIFT);
// [TH1 - Timer 1 High Byte]$
// $[TL1 - Timer 1 Low Byte]
// [TL1 - Timer 1 Low Byte]$
// $[Timer Restoration]
//Restore Timer Configuration
TCON |= (TCON_save & TCON_TR0__BMASK) | (TCON_save & TCON_TR1__BMASK);
// [Timer Restoration]$
}
extern void UART_0_enter_DefaultMode_from_RESET(void) {
// $[SCON0 - UART0 Serial Port Control]
/***********************************************************************
- UART0 reception enabled
***********************************************************************/
SCON0 |= SCON0_REN__RECEIVE_ENABLED;
// [SCON0 - UART0 Serial Port Control]$
}
extern void SPI_0_enter_DefaultMode_from_RESET(void) {
// $[SPI0CKR - SPI0 Clock Rate]
/***********************************************************************
- SPI0 Clock Rate = 0x17
***********************************************************************/
SPI0CKR = (0x17 << SPI0CKR_SPI0CKR__SHIFT);
// [SPI0CKR - SPI0 Clock Rate]$
// $[SPI0FCN0 - SPI0 FIFO Control 0]
// [SPI0FCN0 - SPI0 FIFO Control 0]$
// $[SPI0FCN1 - SPI0 FIFO Control 1]
// [SPI0FCN1 - SPI0 FIFO Control 1]$
// $[SPI0CFG - SPI0 Configuration]
// [SPI0CFG - SPI0 Configuration]$
// $[SPI0CN0 - SPI0 Control]
/***********************************************************************
- Enable the SPI module
- 3-Wire Slave or 3-Wire Master Mode
***********************************************************************/
SPI0CN0 &= ~SPI0CN0_NSSMD__FMASK;
SPI0CN0 |= SPI0CN0_SPIEN__ENABLED;
// [SPI0CN0 - SPI0 Control]$
}

5
efm8/src/callback.c
View File

@@ -26,6 +26,7 @@
#include <SI_EFM8UB1_Register_Enums.h>
#include <efm8_usb.h>
#include <stdio.h>
#include "printing.h"
#include "descriptors.h"
#define UNUSED(expr) do { (void)(expr); } while (0)
@@ -126,7 +127,6 @@ USB_Status_TypeDef USBD_SetupCmdCb(
uint8_t hidmsgbuf[64];
uint16_t USBD_XferCompleteCb(uint8_t epAddr, USB_Status_TypeDef status,
uint16_t xferred, uint16_t remaining ) {
@@ -134,10 +134,9 @@ uint16_t USBD_XferCompleteCb(uint8_t epAddr, USB_Status_TypeDef status,
UNUSED(xferred);
UNUSED(remaining);
if (epAddr == EP1OUT)
{
// set_app_u2f_hid_msg((struct u2f_hid_msg *) hidmsgbuf );
usb_transfer_complete();
}
return 0;
}

88
efm8/src/main.c
View File

@@ -1,17 +1,87 @@
#include <SI_EFM8UB1_Register_Enums.h>
#include "InitDevice.h"
#include "efm8_usb.h"
#include "uart_1.h"
#include "printing.h"
#define BUFFER_SIZE 10
uint8_t write_ptr = 0;
uint8_t read_ptr = 0;
uint8_t count = 0;
uint8_t hidmsgbuf[64][BUFFER_SIZE];
void usb_transfer_complete()
{
count++;
write_ptr++;
if (write_ptr == BUFFER_SIZE)
{
write_ptr = 0;
}
cprints("read hid msg\r\n");
}
void spi_transfer_complete()
{
count--;
read_ptr++;
if (read_ptr == BUFFER_SIZE)
{
read_ptr = 0;
}
cprints("sent hid msg\r\n");
}
SI_INTERRUPT (SPI0_ISR, SPI0_IRQn)
{
static unsigned char command;
static unsigned char array_index = 0;
static unsigned char state = 0;
char arr[2];
if (SPI0CN0_WCOL == 1)
{
// Write collision occurred
SPI0CN0_WCOL = 0; // Clear the Write collision flag
}
else if(SPI0CN0_RXOVRN == 1)
{
// Receive overrun occurred
SPI0CN0_RXOVRN = 0; // Clear the Receive Overrun flag
}
else
{
// SPI0CN0_SPIF caused the interrupt
arr[0] = SPI0DAT; // Read the command
arr[1] = 0;
cprints("got data: ");
cprints(arr);
cprints("\n\r");
SPI0CN0_SPIF = 0; // Clear the SPIF0 flag
}
}
int main(void) {
volatile int xdata i,j,k;
uint8_t lastcount = count;
enter_DefaultMode_from_RESET();
IE_EA = 1;
SCON0_TI = 1;
P2_B0 = 1;
cprints("hello,world\r\n");
while (1) {
k++;
for (i = 0; i < 1000; i++)
@@ -23,6 +93,22 @@ int main(void) {
P1_B4 = i&1;
}
P1_B5 = k&1;
if (!USBD_EpIsBusy(EP1OUT) && !USBD_EpIsBusy(EP1IN))
{
if (count == BUFFER_SIZE)
{
cprints("Warning, USB buffer full\r\n");
}
else
{
USBD_Read(EP1OUT, hidmsgbuf[write_ptr], 64, true);
}
}
if (count != lastcount)
{
cprints("+1 to count \r\n");
lastcount = count;
}
}
}

4
efm8/src/printing.c
View File

@@ -14,12 +14,12 @@
void putf(char c)
{
uint8_t i;
SBUF1 = c;
SBUF0 = c;
// Blocking delay that works for 115200 baud on this device (<1ms)
for (i=0; i<200; i++){}
for (i=0; i<200; i++){}
for (i=0; i<190; i++){}
watchdog();
// watchdog();
}