Use 4-wire JTAG instead of 5-wire

Core/Inc/main.h

@@ -1,74 +1,84 @@
-/* USER CODE BEGIN Header */
-/**
-  ******************************************************************************
-  * @file           : main.h
-  * @brief          : Header for main.c file.
-  *                   This file contains the common defines of the application.
-  ******************************************************************************
-  * @attention
-  *
-  * Copyright (c) 2026 STMicroelectronics.
-  * Copyright (c) 2026 Erick Ahmed.
-  *
-  * SPDX-License-Identifier: GPL-3.0-or-later
-  *
-  ******************************************************************************
-  */
-/* USER CODE END Header */
-
-/* Define to prevent recursive inclusion -------------------------------------*/
-#ifndef __MAIN_H
-#define __MAIN_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32f4xx_hal.h"
-
-/* Private includes ----------------------------------------------------------*/
-/* USER CODE BEGIN Includes */
-#include <stdint.h>
-#include "canlog.h"
-/* USER CODE END Includes */
-
-/* Exported types ------------------------------------------------------------*/
-/* USER CODE BEGIN ET */
-
-/* USER CODE END ET */
-
-/* Exported constants --------------------------------------------------------*/
-/* USER CODE BEGIN EC */
-
-/* USER CODE END EC */
-
-/* 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 ---------------------------------------------*/
-void Error_Handler(void);
-
-/* USER CODE BEGIN EFP */
-
-/* USER CODE END EFP */
-
-/* Private defines -----------------------------------------------------------*/
-
-/* USER CODE BEGIN Private defines */
-
-/* USER CODE END Private defines */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __MAIN_H */
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file           : main.h
+  * @brief          : Header for main.c file.
+  *                   This file contains the common defines of the application.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2026 STMicroelectronics.
+  * Copyright (c) 2026 Erick Ahmed.
+  *
+  * SPDX-License-Identifier: GPL-3.0-or-later
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __MAIN_H
+#define __MAIN_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_hal.h"
+
+/* Private includes ----------------------------------------------------------*/
+/* USER CODE BEGIN Includes */
+#include <stdint.h>
+#include "canlog.h"
+/* USER CODE END Includes */
+
+/* Exported types ------------------------------------------------------------*/
+/* USER CODE BEGIN ET */
+
+/* USER CODE END ET */
+
+/* Exported constants --------------------------------------------------------*/
+/* USER CODE BEGIN EC */
+
+/* USER CODE END EC */
+
+/* Exported macro ------------------------------------------------------------*/
+/* USER CODE BEGIN EM */
+#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
+/* USER CODE END EM */
+
+/* Exported functions prototypes ---------------------------------------------*/
+void Error_Handler(void);
+
+/* USER CODE BEGIN EFP */
+
+/* USER CODE END EFP */
+
+/* Private defines -----------------------------------------------------------*/
+
+/* USER CODE BEGIN Private defines */
+
+/* USER CODE END Private defines */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __MAIN_H */

Core/Src/cansend.c

@@ -32,7 +32,7 @@ extern osMessageQueueId_t xUARTQueue;
   * @param  arguments: buffer, source, message
   * @retval None
   */
-static int format_can_message(char *buf, uint8_t source, const CanMessage_t *message)
+static void format_can_message(char *buf, uint8_t source, const CanMessage_t *message)
 {
   const char hex[] = "0123456789ABCDEF";
 
@@ -72,9 +72,6 @@ static int format_can_message(char *buf, uint8_t source, const CanMessage_t *mes
 
   buf[idx++] = '\r';
   buf[idx++] = '\n';
-  buf[idx] = '\0';
-
-  return idx;
 }
 /* END format_can_message */
 
@@ -111,7 +108,7 @@ 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, len);
+        HAL_UART_Transmit_DMA(&huart1, (uint8_t*)tx_buffer, 44);
         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_5};
-LED_Config led_can2 = {GPIOB, GPIO_PIN_6};
-LED_Config led_error = {GPIOB, GPIO_PIN_7};
+LED_Config led_can1 = {GPIOB, GPIO_PIN_2};
+LED_Config led_can2 = {GPIOB, GPIO_PIN_5};
+LED_Config led_error = {GPIOB, GPIO_PIN_3};
 
 osThreadId_t xCAN1rxTask;
 osThreadId_t xCAN2rxTask;
@@ -76,12 +76,6 @@ 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 ---------------------------------------------------------*/
@@ -356,16 +350,16 @@ 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)
-  //{
-  //  Error_Handler();
-  //}
-  //if (HAL_SD_ConfigWideBusOperation(&hsd, SDIO_BUS_WIDE_4B) != HAL_OK)
-  //{
-  //  Error_Handler();
-  //}
+  if (HAL_SD_Init(&hsd) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  if (HAL_SD_ConfigWideBusOperation(&hsd, SDIO_BUS_WIDE_4B) != HAL_OK)
+  {
+    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 */
 
 }
@@ -465,20 +459,18 @@ static void MX_GPIO_Init(void)
 
   /*Configure GPIO pins : PA0 PA1 PA2 PA3
                            PA4 PA5 PA6 PA7
-                           PA8 PA11 PA12 PA15 */
+                           PA8 PA11 PA12 */
   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_15;
+                          |GPIO_PIN_8|GPIO_PIN_11|GPIO_PIN_12;
   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 PB3
-                           PB4 */
+                           PB11 PB14 PB15 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_3
-                          |GPIO_PIN_4;
+                          |GPIO_PIN_11|GPIO_PIN_14|GPIO_PIN_15|GPIO_PIN_4;
   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

can_logger.ioc

@@ -70,24 +70,26 @@ Mcu.Name=STM32F405RGTx
 Mcu.Package=LQFP64
 Mcu.Pin0=PB12
 Mcu.Pin1=PB13
-Mcu.Pin10=PC12
-Mcu.Pin11=PD2
-Mcu.Pin12=PB5
-Mcu.Pin13=PB6
-Mcu.Pin14=PB7
-Mcu.Pin15=PB8
-Mcu.Pin16=PB9
-Mcu.Pin17=VP_FREERTOS_VS_CMSIS_V2
-Mcu.Pin18=VP_SYS_VS_tim6
+Mcu.Pin10=PC11
+Mcu.Pin11=PC12
+Mcu.Pin12=PD2
+Mcu.Pin13=PB3
+Mcu.Pin14=PB5
+Mcu.Pin15=PB6
+Mcu.Pin16=PB7
+Mcu.Pin17=PB8
+Mcu.Pin18=PB9
+Mcu.Pin19=VP_FREERTOS_VS_CMSIS_V2
 Mcu.Pin2=PC8
+Mcu.Pin20=VP_SYS_VS_tim6
 Mcu.Pin3=PC9
 Mcu.Pin4=PA9
 Mcu.Pin5=PA10
 Mcu.Pin6=PA13
 Mcu.Pin7=PA14
-Mcu.Pin8=PC10
-Mcu.Pin9=PC11
-Mcu.PinsNb=19
+Mcu.Pin8=PA15
+Mcu.Pin9=PC10
+Mcu.PinsNb=21
 Mcu.ThirdPartyNb=0
 Mcu.UserConstants=
 Mcu.UserName=STM32F405RGTx
@@ -115,16 +117,20 @@ 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.Mode=JTAG_4_pins
 PA13.Signal=SYS_JTMS-SWDIO
-PA14.Mode=Serial_Wire
+PA14.Mode=JTAG_4_pins
 PA14.Signal=SYS_JTCK-SWCLK
+PA15.Mode=JTAG_4_pins
+PA15.Signal=SYS_JTDI
 PA9.Mode=Asynchronous
 PA9.Signal=USART1_TX
 PB12.Mode=CAN_Activate
 PB12.Signal=CAN2_RX
 PB13.Mode=CAN_Activate
 PB13.Signal=CAN2_TX
+PB3.Mode=JTAG_4_pins
+PB3.Signal=SYS_JTDO-SWO
 PB5.Locked=true
 PB5.Signal=GPIO_Output
 PB6.Locked=true