Update repo

README.md

@@ -22,6 +22,19 @@ STM32F407VET6 (LQFP100)
 - [33_RS485_VET6](workspace/33_RS485_VET6/)
 - [34_USB_Device_Mode_Card_Reader_VET6](workspace/34_USB_Device_Mode_Card_Reader_VET6/)
 
+<details>
+<summary>
+  <a href="workspace/35_USB_Host_Mode_USB_Drive_VET6/">35_USB_Host_Mode_USB_Drive_VET6</a>
+</summary>
+
+<img src="./images/35_USB_Host_Mode_USB_Drive_VET6_1.png" width="800">
+
+<img src="./images/35_USB_Host_Mode_USB_Drive_VET6_2.png" width="800">
+
+<img src="./images/35_USB_Host_Mode_USB_Drive_VET6_3.png" width="800">
+
+</details>
+
 ### STM32F4DISCOVERY Discovery Board
 
 STM32F407VGT6 (LQFP100)

workspace/34_USB_Device_Mode_Card_Reader_VET6/Core/Src/stm32f4xx_hal_msp.c

@@ -1,59 +0,0 @@
-#include "main.h"
-
-void HAL_MspInit(void) {
-
-	__HAL_RCC_SYSCFG_CLK_ENABLE();
-	__HAL_RCC_PWR_CLK_ENABLE();
-
-	// System interrupt init
-	// PendSV_IRQn interrupt configuration
-	HAL_NVIC_SetPriority(PendSV_IRQn, 15, 0);
-
-}
-
-void HAL_SD_MspInit(SD_HandleTypeDef *hsd) {
-	GPIO_InitTypeDef GPIO_InitStruct = { 0 };
-
-	if (hsd->Instance == SDIO) {
-
-		__HAL_RCC_SDIO_CLK_ENABLE();
-
-		__HAL_RCC_GPIOC_CLK_ENABLE();
-		__HAL_RCC_GPIOD_CLK_ENABLE();
-
-		/* SDIO GPIO Configuration
-		 * PC8   ------> SDIO_D0
-		 * PC9   ------> SDIO_D1
-		 * PC10  ------> SDIO_D2
-		 * PC11  ------> SDIO_D3
-		 * PC12  ------> SDIO_CK
-		 * PD2   ------> SDIO_CMD
-		 */
-
-		// SDIO data lines: PC8-PC11
-		GPIO_InitStruct.Pin = GPIO_PIN_8 | GPIO_PIN_9 |
-		                      GPIO_PIN_10 | GPIO_PIN_11;
-		GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
-		GPIO_InitStruct.Pull = GPIO_PULLUP;
-		GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
-		GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
-		HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
-
-		// SDIO clock: PC12
-		GPIO_InitStruct.Pin = GPIO_PIN_12;
-		GPIO_InitStruct.Pull = GPIO_NOPULL;
-		HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
-
-		// SDIO command: PD2
-		GPIO_InitStruct.Pin = GPIO_PIN_2;
-		GPIO_InitStruct.Pull = GPIO_PULLUP;
-		GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
-		HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
-
-		/* USB MSC callbacks execute at priority 7. SDIO must preempt both USB
-		 * and the priority-6 HAL tick so FIFO service cannot be delayed. */
-		HAL_NVIC_SetPriority(SDIO_IRQn, 5, 0);
-		HAL_NVIC_EnableIRQ(SDIO_IRQn);
-
-	}
-}

workspace/34_USB_Device_Mode_Card_Reader_VET6/FATFS/Target/fatfs_platform.c

@@ -1,31 +0,0 @@
-/* USER CODE BEGIN Header */
-/**
-  ******************************************************************************
-  * @file           : fatfs_platform.c
-  * @brief          : fatfs_platform source file
-  ******************************************************************************
-  * @attention
-  *
-  * Copyright (c) 2026 STMicroelectronics.
-  * All rights reserved.
-  *
-  * This software is licensed under terms that can be found in the LICENSE file
-  * in the root directory of this software component.
-  * If no LICENSE file comes with this software, it is provided AS-IS.
-  *
-  ******************************************************************************
-*/
-/* USER CODE END Header */
-#include "fatfs_platform.h"
-
-uint8_t	BSP_PlatformIsDetected(void) {
-    uint8_t status = SD_PRESENT;
-    /* USER CODE BEGIN 1 */
-    /* This board has no card-detect switch wired to the microSD socket. The
-     * SD_DETECT_PIN (PD3) generated by CubeMX is only a placeholder: left as a
-     * pulled-up input it always reads high, which reported SD_NOT_PRESENT on
-     * every STORAGE_* call after BSP_SD_Init() and made the USB MSC host see
-     * an empty drive. Report the card as always present instead. */
-    /* USER CODE END 1 */
-    return status;
-}

workspace/34_USB_Device_Mode_Card_Reader_VET6/USB_DEVICE/App/usb_device.c

@@ -1,30 +0,0 @@
-#include "main.h"
-#include "usb_device.h"
-#include "usbd_desc.h"
-#include "usbd_msc.h"
-#include "usbd_storage_if.h"
-
-USBD_HandleTypeDef hUsbDeviceFS;
-
-void MX_USB_DEVICE_Init(void)
-{
-  if (USBD_Init(&hUsbDeviceFS, &MSC_Desc, 0) != USBD_OK)
-  {
-    Error_Handler();
-  }
-
-  if (USBD_RegisterClass(&hUsbDeviceFS, &USBD_MSC) != USBD_OK)
-  {
-    Error_Handler();
-  }
-
-  if (USBD_MSC_RegisterStorage(&hUsbDeviceFS, &USBD_Storage_Interface_fops_FS) != USBD_OK)
-  {
-    Error_Handler();
-  }
-
-  if (USBD_Start(&hUsbDeviceFS) != USBD_OK)
-  {
-    Error_Handler();
-  }
-}

workspace/34_USB_Device_Mode_SD_Card_VET6/.project

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <projectDescription>
-	<name>34_USB_Device_Mode_Card_Reader_VET6</name>
+	<name>34_USB_Device_Mode_SD_Card_VET6</name>
 	<comment></comment>
 	<projects>
 	</projects>

workspace/34_USB_Device_Mode_SD_Card_VET6/34_USB_Device_Mode_SD_Card_VET6.launch

@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<launchConfiguration type="com.st.stm32cube.ide.mcu.debug.launch.launchConfigurationType">
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.access_port_id" value="0"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.cubeprog_external_loaders" value="[]"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.launch.debug_auth__pwd_enable" value="false"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.debug_auth_certif_path" value=""/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.launch.debug_auth_check_enable" value="false"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.debug_auth_key_path" value=""/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.debug_auth_permission" value=""/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.debug_auth_pwd_file" value=""/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.launch.enable_live_expr" value="true"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.launch.enable_swv" value="false"/>
+    <intAttribute key="com.st.stm32cube.ide.mcu.debug.launch.formatVersion" value="2"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.ip_address_local" value="localhost"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.launch.limit_swo_clock.enabled" value="false"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.limit_swo_clock.value" value=""/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.loadList" value="{&quot;fItems&quot;:[{&quot;fIsFromMainTab&quot;:true,&quot;fPath&quot;:&quot;Debug/34_USB_Device_Mode_SD_Card_VET6.elf&quot;,&quot;fProjectName&quot;:&quot;34_USB_Device_Mode_SD_Card_VET6&quot;,&quot;fPerformBuild&quot;:true,&quot;fDownload&quot;:true,&quot;fLoadSymbols&quot;:true}]}"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.override_start_address_mode" value="default"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.remoteCommand" value="target remote"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.launch.startServer" value="true"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.launch.startuptab.exception.divby0" value="true"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.launch.startuptab.exception.unaligned" value="false"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.launch.startuptab.haltonexception" value="true"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.launch.swd_mode" value="true"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.swv_port" value="61235"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.swv_trace_hclk" value="168000000"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.launch.useRemoteTarget" value="true"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.vector_table" value=""/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.launch.verify_flash_download" value="true"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.cti_allow_halt" value="false"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.cti_signal_halt" value="false"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.enable_logging" value="false"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.enable_max_halt_delay" value="false"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.enable_shared_stlink" value="false"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.frequency" value="0"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.halt_all_on_reset" value="false"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.log_file" value="C:\MCU_workspace\STM_workspace\STM32F4_Cortex_M4\workspace\34_USB_Device_Mode_SD_Card_VET6\Debug\st-link_gdbserver_log.txt"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.low_power_debug" value="enable"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.max_halt_delay" value="2"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.reset_strategy" value="connect_under_reset"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.stlink_check_serial_number" value="true"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.stlink_txt_serial_number" value="066AFF495580535067161527"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.watchdog_config" value="none"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.stlinkenable_rtos" value="false"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlinkrestart_configurations" value="{&quot;fVersion&quot;:1,&quot;fItems&quot;:[{&quot;fDisplayName&quot;:&quot;Reset&quot;,&quot;fIsSuppressible&quot;:false,&quot;fResetAttribute&quot;:&quot;Software system reset&quot;,&quot;fResetStrategies&quot;:[{&quot;fDisplayName&quot;:&quot;Software system reset&quot;,&quot;fLaunchAttribute&quot;:&quot;system_reset&quot;,&quot;fGdbCommands&quot;:[&quot;monitor reset\r\n&quot;],&quot;fCmdOptions&quot;:[&quot;-g&quot;]},{&quot;fDisplayName&quot;:&quot;Hardware reset&quot;,&quot;fLaunchAttribute&quot;:&quot;hardware_reset&quot;,&quot;fGdbCommands&quot;:[&quot;monitor reset hardware\r\n&quot;],&quot;fCmdOptions&quot;:[&quot;-g&quot;]},{&quot;fDisplayName&quot;:&quot;Core reset&quot;,&quot;fLaunchAttribute&quot;:&quot;core_reset&quot;,&quot;fGdbCommands&quot;:[&quot;monitor reset core\r\n&quot;],&quot;fCmdOptions&quot;:[&quot;-g&quot;]},{&quot;fDisplayName&quot;:&quot;None&quot;,&quot;fLaunchAttribute&quot;:&quot;no_reset&quot;,&quot;fGdbCommands&quot;:[],&quot;fCmdOptions&quot;:[&quot;-g&quot;]}],&quot;fGdbCommandGroup&quot;:{&quot;name&quot;:&quot;Additional commands&quot;,&quot;commands&quot;:[]},&quot;fStartApplication&quot;:true}]}"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.rtosproxy.enableRtosProxy" value="false"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.rtosproxy.rtosProxyCustomProperties" value=""/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.rtosproxy.rtosProxyDriver" value="threadx"/>
+    <booleanAttribute key="com.st.stm32cube.ide.mcu.rtosproxy.rtosProxyDriverAuto" value="false"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.rtosproxy.rtosProxyDriverPort" value="cortex_m0"/>
+    <intAttribute key="com.st.stm32cube.ide.mcu.rtosproxy.rtosProxyPort" value="60000"/>
+    <booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.doHalt" value="false"/>
+    <booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.doReset" value="false"/>
+    <stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.initCommands" value=""/>
+    <stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.ipAddress" value="localhost"/>
+    <stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.jtagDeviceId" value="com.st.stm32cube.ide.mcu.debug.stlink"/>
+    <stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.pcRegister" value=""/>
+    <intAttribute key="org.eclipse.cdt.debug.gdbjtag.core.portNumber" value="61234"/>
+    <stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.runCommands" value=""/>
+    <booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.setPcRegister" value="false"/>
+    <booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.setResume" value="true"/>
+    <booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.setStopAt" value="true"/>
+    <stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.stopAt" value="main"/>
+    <stringAttribute key="org.eclipse.cdt.dsf.gdb.DEBUG_NAME" value="arm-none-eabi-gdb"/>
+    <booleanAttribute key="org.eclipse.cdt.dsf.gdb.NON_STOP" value="false"/>
+    <booleanAttribute key="org.eclipse.cdt.dsf.gdb.UPDATE_THREADLIST_ON_SUSPEND" value="false"/>
+    <intAttribute key="org.eclipse.cdt.launch.ATTR_BUILD_BEFORE_LAUNCH_ATTR" value="2"/>
+    <stringAttribute key="org.eclipse.cdt.launch.COREFILE_PATH" value=""/>
+    <stringAttribute key="org.eclipse.cdt.launch.DEBUGGER_START_MODE" value="remote"/>
+    <booleanAttribute key="org.eclipse.cdt.launch.DEBUGGER_STOP_AT_MAIN" value="true"/>
+    <stringAttribute key="org.eclipse.cdt.launch.DEBUGGER_STOP_AT_MAIN_SYMBOL" value="main"/>
+    <stringAttribute key="org.eclipse.cdt.launch.PROGRAM_NAME" value="Debug/34_USB_Device_Mode_SD_Card_VET6.elf"/>
+    <stringAttribute key="org.eclipse.cdt.launch.PROJECT_ATTR" value="34_USB_Device_Mode_SD_Card_VET6"/>
+    <booleanAttribute key="org.eclipse.cdt.launch.PROJECT_BUILD_CONFIG_AUTO_ATTR" value="true"/>
+    <stringAttribute key="org.eclipse.cdt.launch.PROJECT_BUILD_CONFIG_ID_ATTR" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.config.exe.debug.414006745"/>
+    <booleanAttribute key="org.eclipse.debug.core.ATTR_FORCE_SYSTEM_CONSOLE_ENCODING" value="false"/>
+    <listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
+        <listEntry value="/34_USB_Device_Mode_SD_Card_VET6"/>
+    </listAttribute>
+    <listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
+        <listEntry value="4"/>
+    </listAttribute>
+    <stringAttribute key="org.eclipse.dsf.launch.MEMORY_BLOCKS" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&lt;memoryBlockExpressionList context=&quot;reserved-for-future-use&quot;/&gt;"/>
+    <stringAttribute key="process_factory_id" value="com.st.stm32cube.ide.mcu.debug.launch.HardwareDebugProcessFactory"/>
+</launchConfiguration>

workspace/34_USB_Device_Mode_SD_Card_VET6/Core/Src/main.c

@@ -1,13 +1,11 @@
 #include <stdio.h>
-#include <string.h>
 
 #include "main.h"
-#include "cmsis_os.h"
 
 #include "fatfs.h"
+#include "fatfs_platform.h"
 #include "usb_device.h"
 #include "usbd_storage_if.h"
-#include "bsp_driver_sd.h"
 
 // System clock
 uint32_t HCLK_freq;
@@ -27,17 +25,6 @@ int __io_putchar(int ch) {
 // LED: GPIO_PIN_13
 static void LED_GPIO_Init(void);
 
-SD_HandleTypeDef hsd;
-static void SDIO_SD_Init(void);
-static void SD_Diagnostics(void);
-
-/* STM32F405/407 erratum ES0182 says that SDIO hardware flow control must not
- * be used.  Keep the four-bit transfer clock at a conservative 2 MHz while
- * the FIFO is serviced in interrupt mode.  This is still fast enough for a
- * reliable USB-FS MSC functional test. */
-#define SDIO_TRANSFER_CLOCK_DIV  22U
-#define SDIO_TRANSFER_CLOCK_HZ   (48000000U / (SDIO_TRANSFER_CLOCK_DIV + 2U))
-
 int main(void) {
 	uint32_t reported_storage_error = HAL_SD_ERROR_NONE;
 
@@ -46,16 +33,17 @@ int main(void) {
 	USART1_UART_Init();
 	LED_GPIO_Init();
 
-	SDIO_SD_Init();
+	SD_Init();
 	SD_Diagnostics();
+
 	MX_FATFS_Init();
 	MX_USB_DEVICE_Init();
 
 	while (1) {
 		uint32_t storage_error = STORAGE_GetLastError();
 
-		if ((storage_error != HAL_SD_ERROR_NONE) &&
+		if ((storage_error != HAL_SD_ERROR_NONE)
-		    (storage_error != reported_storage_error)) {
+				&& (storage_error != reported_storage_error)) {
 			printf("storage I/O error: 0x%08lX\r\n",
 					(unsigned long) storage_error);
 			reported_storage_error = storage_error;
@@ -66,79 +54,6 @@ int main(void) {
 
 }
 
-static void SDIO_SD_Init(void) {
-	hsd.Instance = SDIO;
-	hsd.Init.ClockEdge = SDIO_CLOCK_EDGE_RISING;
-	hsd.Init.ClockBypass = SDIO_CLOCK_BYPASS_DISABLE;
-	hsd.Init.ClockPowerSave = SDIO_CLOCK_POWER_SAVE_DISABLE;
-	hsd.Init.BusWide = SDIO_BUS_WIDE_1B;
-	hsd.Init.HardwareFlowControl = SDIO_HARDWARE_FLOW_CONTROL_DISABLE;
-	hsd.Init.ClockDiv = SDIO_TRANSFER_CLOCK_DIV;
-}
-
-/*
- * Bring the SD card up here, in thread mode, instead of leaving it to the first
- * STORAGE_Init() call that the USB stack makes from inside the OTG_FS ISR.
- * Everything it reports goes out on USART1 @115200, so an init failure is
- * visible instead of silently turning into a "no medium" USB drive.
- */
-static void SD_Diagnostics(void) {
-
-	int8_t init_status;
-	uint8_t io_status;
-	HAL_SD_CardInfoTypeDef info = { 0 };
-	static uint32_t sector0[128];
-	uint8_t *b = (uint8_t *) sector0;
-	int i;
-
-	printf("\r\n--- SD diagnostics ---\r\n");
-	printf("detect      : %u (1=present)\r\n", BSP_SD_IsDetected());
-
-	init_status = STORAGE_Prepare();
-	printf("storage init: %d (0=ready)\r\n", init_status);
-	printf("sdio clock  : %lu Hz (HW flow control disabled; ES0182)\r\n",
-	       (unsigned long) SDIO_TRANSFER_CLOCK_HZ);
-	printf("USB MSC I/O : SDIO interrupt mode\r\n");
-	printf("hal state   : %u  errorcode: 0x%08lX\r\n",
-	       (unsigned) HAL_SD_GetState(&hsd), (unsigned long) HAL_SD_GetError(&hsd));
-
-	if (init_status != 0) {
-		printf("SD init FAILED - USB drive will report no medium\r\n");
-		printf("--- end ---\r\n");
-		return;
-	}
-
-	BSP_SD_GetCardInfo(&info);
-	printf("card type   : %lu (0=SDSC 1=SDHC/SDXC 3=secured)\r\n",
-	       (unsigned long) info.CardType);
-	printf("card version: %lu   class: 0x%lX   RCA: 0x%lX\r\n",
-	       (unsigned long) info.CardVersion, (unsigned long) info.Class,
-	       (unsigned long) info.RelCardAdd);
-	printf("blocks      : %lu x %lu bytes\r\n",
-	       (unsigned long) info.BlockNbr, (unsigned long) info.BlockSize);
-	printf("log blocks  : %lu x %lu bytes\r\n",
-	       (unsigned long) info.LogBlockNbr, (unsigned long) info.LogBlockSize);
-	printf("capacity    : %lu MB\r\n",
-	       (unsigned long) ((uint64_t) info.LogBlockNbr * info.LogBlockSize / 1048576U));
-	printf("card state  : %u (0=SD_TRANSFER_OK)\r\n", BSP_SD_GetCardState());
-
-	/* Read the MBR, so a dead bus can be told apart from a dead filesystem. */
-	io_status = BSP_SD_ReadBlocks(sector0, 0U, 1U, 1000U);
-	printf("read LBA0   : %u (0=MSD_OK)  errorcode: 0x%08lX\r\n",
-	       io_status, (unsigned long) HAL_SD_GetError(&hsd));
-
-	if (io_status == MSD_OK) {
-		printf("sig 0x1FE   : %02X %02X (expect 55 AA)\r\n", b[510], b[511]);
-		printf("first 16    : ");
-		for (i = 0; i < 16; i++) {
-			printf("%02X ", b[i]);
-		}
-		printf("\r\n");
-	}
-
-	printf("--- end ---\r\n");
-}
-
 static void LED_GPIO_Init(void) {
 
 	GPIO_InitTypeDef GPIO_InitStruct = { 0 };

workspace/34_USB_Device_Mode_SD_Card_VET6/Core/Src/stm32f4xx_hal_msp.c

@@ -0,0 +1,12 @@
+#include "main.h"
+
+void HAL_MspInit(void) {
+
+	__HAL_RCC_SYSCFG_CLK_ENABLE();
+	__HAL_RCC_PWR_CLK_ENABLE();
+
+	// System interrupt init
+	// PendSV_IRQn interrupt configuration
+	HAL_NVIC_SetPriority(PendSV_IRQn, 15, 0);
+
+}