Return exact length

- Goes into error handling

Core/Inc/main.h

@@ -24,31 +24,13 @@
 extern "C" {
 #endif
 
-#define DEBUG
-#ifdef DEBUG
-static inline void ITM_Print(const char *str) {
-    while (*str) {
-        uint32_t timeout = 1000;
-        while ((ITM->PORT[0].u32 == 0) && (timeout-- > 0));
-
-        if (timeout > 0) {
-            ITM->PORT[0].u8 = (uint8_t)(*str);
-        }
-        str++;
-    }
-}
-#define DEBUG_PRINT(x) ITM_Print(x)
-#else
-#define DEBUG_PRINT(x)
-#endif
-
 /* Includes ------------------------------------------------------------------*/
 #include "stm32f4xx_hal.h"
-#include "canlog.h"
 
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
-
+#include <stdint.h>
+#include "canlog.h"
 /* USER CODE END Includes */
 
 /* Exported types ------------------------------------------------------------*/
@@ -63,7 +45,13 @@ static inline void ITM_Print(const char *str) {
 
 /* Exported macro ------------------------------------------------------------*/
 /* USER CODE BEGIN EM */
-
+#define DEBUG
+#ifdef DEBUG
+#include <stdio.h>
+#define DEBUG_PRINT(...) printf(__VA_ARGS__)
+#else
+#define DEBUG_PRINT(...)
+#endif
 /* USER CODE END EM */
 
 /* Exported functions prototypes ---------------------------------------------*/

Core/Src/cansend.c

@@ -32,7 +32,7 @@ extern osMessageQueueId_t xUARTQueue;
   * @param  arguments: buffer, source, message
   * @retval None
   */
-static void format_can_message(char *buf, uint8_t source, const CanMessage_t *message)
+static int format_can_message(char *buf, uint8_t source, const CanMessage_t *message)
 {
   const char hex[] = "0123456789ABCDEF";
 
@@ -72,6 +72,9 @@ static void format_can_message(char *buf, uint8_t source, const CanMessage_t *me
 
   buf[idx++] = '\r';
   buf[idx++] = '\n';
+  buf[idx] = '\0';
+
+  return idx;
 }
 /* END format_can_message */
 
@@ -108,7 +111,7 @@ void vUARTLogger(void *argument)
       {
         DEBUG_PRINT("CAN frame detected\r\n");
         format_can_message(tx_buffer, message.source, &message);
-        HAL_UART_Transmit_DMA(&huart1, (uint8_t*)tx_buffer, 44);
+        HAL_UART_Transmit_DMA(&huart1, (uint8_t*)tx_buffer, len);
         osSemaphoreAcquire(xUARTDMASemaphore, osWaitForever);
         DEBUG_PRINT("CAN frame sent via UART\r\n");
       }

Core/Src/main.c

@@ -48,9 +48,9 @@ DMA_HandleTypeDef hdma_sdio_tx;
 UART_HandleTypeDef huart1;
 
 /* USER CODE BEGIN PV */
-LED_Config led_can1 = {GPIOB, GPIO_PIN_2};
+LED_Config led_can1 = {GPIOB, GPIO_PIN_5};
-LED_Config led_can2 = {GPIOB, GPIO_PIN_5};
+LED_Config led_can2 = {GPIOB, GPIO_PIN_6};
-LED_Config led_error = {GPIOB, GPIO_PIN_3};
+LED_Config led_error = {GPIOB, GPIO_PIN_7};
 
 osThreadId_t xCAN1rxTask;
 osThreadId_t xCAN2rxTask;
@@ -76,6 +76,12 @@ static void MX_SDIO_SD_Init(void);
 static void MX_USART1_UART_Init(void);
 
 /* USER CODE BEGIN PFP */
+int _write(int file, char *ptr, int len) {
+ for (int i = 0; i < len; i++) {
+ ITM_SendChar((*ptr++));
+ }
+ return len;
+}
 /* USER CODE END PFP */
 
 /* Private user code ---------------------------------------------------------*/
@@ -350,16 +356,16 @@ static void MX_SDIO_SD_Init(void)
   hsd.Init.BusWide = SDIO_BUS_WIDE_1B;
   hsd.Init.HardwareFlowControl = SDIO_HARDWARE_FLOW_CONTROL_DISABLE;
   hsd.Init.ClockDiv = 0;
-  if (HAL_SD_Init(&hsd) != HAL_OK)
+  //if (HAL_SD_Init(&hsd) != HAL_OK)
-  {
+  //{
-    Error_Handler();
+  //  Error_Handler();
-  }
+  //}
-  if (HAL_SD_ConfigWideBusOperation(&hsd, SDIO_BUS_WIDE_4B) != HAL_OK)
+  //if (HAL_SD_ConfigWideBusOperation(&hsd, SDIO_BUS_WIDE_4B) != HAL_OK)
-  {
+  //{
-    Error_Handler();
+  //  Error_Handler();
-  }
+  //}
   /* USER CODE BEGIN SDIO_Init 2 */
-  DEBUG_PRINT("SDIO initialized!\r\n");
+  //DEBUG_PRINT("SDIO initialized!\r\n");
   /* USER CODE END SDIO_Init 2 */
 
 }
@@ -439,7 +445,7 @@ static void MX_GPIO_Init(void)
   __HAL_RCC_GPIOD_CLK_ENABLE();
 
   /*Configure GPIO pin Output Level */
-  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5, GPIO_PIN_RESET);
+  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7, GPIO_PIN_RESET);
 
   /*Configure GPIO pins : PC13 PC14 PC15 PC0
                            PC1 PC2 PC3 PC4
@@ -459,28 +465,26 @@ static void MX_GPIO_Init(void)
 
   /*Configure GPIO pins : PA0 PA1 PA2 PA3
                            PA4 PA5 PA6 PA7
-                           PA8 PA11 PA12 PA13
+                           PA8 PA11 PA12 PA15 */
-                           PA14 PA15 */
   GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
                           |GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7
-                          |GPIO_PIN_8|GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13
+                          |GPIO_PIN_8|GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_15;
-                          |GPIO_PIN_14|GPIO_PIN_15;
   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
   /*Configure GPIO pins : PB0 PB1 PB2 PB10
-                           PB11 PB14 PB15 PB6
+                           PB11 PB14 PB15 PB3
-                           PB7 */
+                           PB4 */
   GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_10
-                          |GPIO_PIN_11|GPIO_PIN_14|GPIO_PIN_15|GPIO_PIN_6
+                          |GPIO_PIN_11|GPIO_PIN_14|GPIO_PIN_15|GPIO_PIN_3
-                          |GPIO_PIN_7;
+                          |GPIO_PIN_4;
   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
 
-  /*Configure GPIO pins : PB4 PB5 */
+  /*Configure GPIO pins : PB5 PB6 PB7 */
-  GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_5;
+  GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;

can_logger.ioc

@@ -70,22 +70,24 @@ Mcu.Name=STM32F405RGTx
 Mcu.Package=LQFP64
 Mcu.Pin0=PB12
 Mcu.Pin1=PB13
-Mcu.Pin10=PB3
+Mcu.Pin10=PC12
-Mcu.Pin11=PB4
+Mcu.Pin11=PD2
 Mcu.Pin12=PB5
-Mcu.Pin13=PB8
+Mcu.Pin13=PB6
-Mcu.Pin14=PB9
+Mcu.Pin14=PB7
-Mcu.Pin15=VP_FREERTOS_VS_CMSIS_V2
+Mcu.Pin15=PB8
-Mcu.Pin16=VP_SYS_VS_tim6
+Mcu.Pin16=PB9
+Mcu.Pin17=VP_FREERTOS_VS_CMSIS_V2
+Mcu.Pin18=VP_SYS_VS_tim6
 Mcu.Pin2=PC8
 Mcu.Pin3=PC9
 Mcu.Pin4=PA9
 Mcu.Pin5=PA10
-Mcu.Pin6=PC10
+Mcu.Pin6=PA13
-Mcu.Pin7=PC11
+Mcu.Pin7=PA14
-Mcu.Pin8=PC12
+Mcu.Pin8=PC10
-Mcu.Pin9=PD2
+Mcu.Pin9=PC11
-Mcu.PinsNb=17
+Mcu.PinsNb=19
 Mcu.ThirdPartyNb=0
 Mcu.UserConstants=
 Mcu.UserName=STM32F405RGTx
@@ -113,18 +115,22 @@ NVIC.TimeBaseIP=TIM6
 NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
 PA10.Mode=Asynchronous
 PA10.Signal=USART1_RX
+PA13.Mode=Serial_Wire
+PA13.Signal=SYS_JTMS-SWDIO
+PA14.Mode=Serial_Wire
+PA14.Signal=SYS_JTCK-SWCLK
 PA9.Mode=Asynchronous
 PA9.Signal=USART1_TX
 PB12.Mode=CAN_Activate
 PB12.Signal=CAN2_RX
 PB13.Mode=CAN_Activate
 PB13.Signal=CAN2_TX
-PB3.Locked=true
-PB3.Signal=GPIO_Output
-PB4.Locked=true
-PB4.Signal=GPIO_Output
 PB5.Locked=true
 PB5.Signal=GPIO_Output
+PB6.Locked=true
+PB6.Signal=GPIO_Output
+PB7.Locked=true
+PB7.Signal=GPIO_Output
 PB8.Mode=CAN_Activate
 PB8.Signal=CAN1_RX
 PB9.Locked=true