diff --git a/fido2/ctap.c b/fido2/ctap.c
index 11c3e39..6b644f3 100644
--- a/fido2/ctap.c
+++ b/fido2/ctap.c
@@ -1,21 +1,21 @@
 /*
  * Copyright (C) 2018 SoloKeys, Inc. <https://solokeys.com/>
- * 
+ *
  * This file is part of Solo.
- * 
+ *
  * Solo is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
- * 
+ *
  * Solo is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU General Public License
  * along with Solo.  If not, see <https://www.gnu.org/licenses/>
- * 
+ *
  * This code is available under licenses for commercial use.
  * Please contact SoloKeys for more information.
  */
@@ -1030,7 +1030,8 @@ uint8_t ctap_get_assertion(CborEncoder * encoder, uint8_t * request, int length)
     }
 
     printf1(TAG_GA,"resulting order of creds:\n");
-    for (int j = 0; j < GA.credLen; j++)
+    int j;
+    for (j = 0; j < GA.credLen; j++)
     {
         printf1(TAG_GA,"CRED ID (# %d)\n", GA.creds[j].credential.id.count);
     }
diff --git a/targets/stm32l432/lib/usbd/usbd_composite.c b/targets/stm32l432/lib/usbd/usbd_composite.c
index 64da3dc..7a3d6f1 100644
--- a/targets/stm32l432/lib/usbd/usbd_composite.c
+++ b/targets/stm32l432/lib/usbd/usbd_composite.c
@@ -213,7 +213,7 @@ static uint8_t USBD_Composite_Init (USBD_HandleTypeDef *pdev, uint8_t cfgidx) {
 
 static uint8_t  USBD_Composite_DeInit (USBD_HandleTypeDef *pdev, uint8_t cfgidx) {
     int i;
-    for(int i = 0; i < NUM_INTERFACES; i++) {
+    for(i = 0; i < NUM_INTERFACES; i++) {
         if (USBD_Classes[i]->DeInit(pdev, cfgidx) != USBD_OK) {
             return USBD_FAIL;
         }
diff --git a/targets/stm32l432/lib/usbd/usbd_hid.c b/targets/stm32l432/lib/usbd/usbd_hid.c
index 3bd7ec8..a1950c3 100644
--- a/targets/stm32l432/lib/usbd/usbd_hid.c
+++ b/targets/stm32l432/lib/usbd/usbd_hid.c
@@ -250,38 +250,38 @@ void usb_hid_recieve_callback(uint8_t ep)
             HID_PACKET_SIZE);
 }
 
-static void dump_pma()
-{
-
-    register uint32_t _wRegBase = (uint32_t)USB;
-    _wRegBase += (uint32_t)(USB)->BTABLE + 0x400;
-
-    uint16_t * pma_ptr = (uint16_t *)_wRegBase;
-    uint16_t val;
-    uint32_t offset = (uint32_t)(USB)->BTABLE;
-
-    printf1(TAG_GREEN,"btable: %02lx\r\n",offset);
-
-    for (int i = 0; i < 2; i++)
-    {
-        uint16_t addr_tx = pma_ptr[i * 4 + 0];
-        uint16_t cnt_tx = pma_ptr[i * 4 + 1];
-        uint16_t addr_rx = pma_ptr[i * 4 + 2];
-        uint16_t cnt_rx = pma_ptr[i * 4 + 3];
-
-        printf1(TAG_GREEN,"EP%d addr_tx == %02x, count_tx == %02x\r\n", i, addr_tx,cnt_tx );
-        printf1(TAG_GREEN,"EP%d addr_rx == %02x, count_rx == %02x\r\n", i, addr_rx,cnt_rx );
-    }
-
-    uint16_t ep1_tx = pma_ptr[1 * 4 + 0];
-
-    for (int i  = 0; i < 32; i++)
-    {
-        val = pma_ptr[ep1_tx + i];
-        printf1(TAG_GREEN,"%04x ",val);
-    }
-    printf1(TAG_GREEN,"\r\n");
-}
+// static void dump_pma()
+// {
+//
+//     register uint32_t _wRegBase = (uint32_t)USB;
+//     _wRegBase += (uint32_t)(USB)->BTABLE + 0x400;
+//
+//     uint16_t * pma_ptr = (uint16_t *)_wRegBase;
+//     uint16_t val;
+//     uint32_t offset = (uint32_t)(USB)->BTABLE;
+//
+//     printf1(TAG_GREEN,"btable: %02lx\r\n",offset);
+//
+//     for (int i = 0; i < 2; i++)
+//     {
+//         uint16_t addr_tx = pma_ptr[i * 4 + 0];
+//         uint16_t cnt_tx = pma_ptr[i * 4 + 1];
+//         uint16_t addr_rx = pma_ptr[i * 4 + 2];
+//         uint16_t cnt_rx = pma_ptr[i * 4 + 3];
+//
+//         printf1(TAG_GREEN,"EP%d addr_tx == %02x, count_tx == %02x\r\n", i, addr_tx,cnt_tx );
+//         printf1(TAG_GREEN,"EP%d addr_rx == %02x, count_rx == %02x\r\n", i, addr_rx,cnt_rx );
+//     }
+//
+//     uint16_t ep1_tx = pma_ptr[1 * 4 + 0];
+//
+//     for (int i  = 0; i < 32; i++)
+//     {
+//         val = pma_ptr[ep1_tx + i];
+//         printf1(TAG_GREEN,"%04x ",val);
+//     }
+//     printf1(TAG_GREEN,"\r\n");
+// }
 
 /**
   * @brief  USBD_HID_Init