1 ACCEPTED SOLUTION
Accepted Solutions
Hello @cbarb2747
I confirm that, on my side, both UART4 and UART7 are working correctly on the STM32H7S78-DK board.
UART7 is mapped to pins PE7 (RX) and PE8 (TX), and they are routed to connector CN14, signals D1 (RX) and D0 (TX).
Please find attached the main.c and stm32h7rsxx_hal_msp.c files that I used for this test.
These files include the UART initialization and pin configuration currently working on my setup. You can use them as a reference
Br,
UART7 is not working with the arduino pins. However, I can't get even UART4 to print to the putty terminal. Which uart4 should just be uart through the stlink which powers and flashes the code to the board. Here is the fresh code with a brand new project. I used STMCubeMX to initialize uart7, but all the other peripherals are initialized to their default values. I am able to very simply do the same process with an NUCLEO-L476RG and print to the uart via the stlink. Not sure what is going on with this board stm32h7s78-dk.
Here are the config setups
I have soldered jumper bridges to route the uart to the stmod+ connector and de-soldered the standard bridges to unroute spi coming out of the stmod+. And I am trying to get uart out of the expansion board connected to the stmod
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @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 */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
ADC_HandleTypeDef hadc1;
ADC_HandleTypeDef hadc2;
DCMIPP_HandleTypeDef phdcmipp;
I2C_HandleTypeDef hi2c1;
I2S_HandleTypeDef hi2s6;
LTDC_HandleTypeDef hltdc;
SD_HandleTypeDef hsd1;
SPI_HandleTypeDef hspi4;
UART_HandleTypeDef huart4;
UART_HandleTypeDef huart7;
PCD_HandleTypeDef hpcd_USB_OTG_FS;
HCD_HandleTypeDef hhcd_USB_OTG_HS;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
static void MX_GPIO_Init(void);
static void MX_ADC1_Init(void);
static void MX_ADC2_Init(void);
static void MX_DCMIPP_Init(void);
static void MX_FLASH_Init(void);
static void MX_I2C1_Init(void);
static void MX_I2S6_Init(void);
static void MX_LTDC_Init(void);
static void MX_SDMMC1_SD_Init(void);
static void MX_SPI4_Init(void);
static void MX_UART4_Init(void);
static void MX_UART7_Init(void);
static void MX_UCPD1_Init(void);
static void MX_USB_OTG_FS_PCD_Init(void);
static void MX_USB_OTG_HS_HCD_Init(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
unsigned char tx_data[8] = { "Hello\n\r" };
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Update SystemCoreClock variable according to RCC registers values. */
SystemCoreClockUpdate();
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_ADC1_Init();
MX_ADC2_Init();
MX_DCMIPP_Init();
MX_FLASH_Init();
MX_I2C1_Init();
MX_I2S6_Init();
MX_LTDC_Init();
MX_SDMMC1_SD_Init();
MX_SPI4_Init();
MX_UART4_Init();
MX_UART7_Init();
MX_UCPD1_Init();
MX_USB_OTG_FS_PCD_Init();
MX_USB_OTG_HS_HCD_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
HAL_UART_Transmit(&huart4, tx_data, sizeof(tx_data), 1000);
HAL_Delay(2000);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief ADC1 Initialization Function
* None
* @retval None
*/
static void MX_ADC1_Init(void)
{
/* USER CODE BEGIN ADC1_Init 0 */
/* USER CODE END ADC1_Init 0 */
ADC_MultiModeTypeDef multimode = {0};
ADC_ChannelConfTypeDef sConfig = {0};
/* USER CODE BEGIN ADC1_Init 1 */
/* USER CODE END ADC1_Init 1 */
/** Common config
*/
hadc1.Instance = ADC1;
hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2;
hadc1.Init.Resolution = ADC_RESOLUTION_12B;
hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;
hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
hadc1.Init.LowPowerAutoWait = DISABLE;
hadc1.Init.ContinuousConvMode = DISABLE;
hadc1.Init.NbrOfConversion = 1;
hadc1.Init.DiscontinuousConvMode = DISABLE;
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc1.Init.SamplingMode = ADC_SAMPLING_MODE_NORMAL;
hadc1.Init.ConversionDataManagement = ADC_CONVERSIONDATA_DR;
hadc1.Init.Overrun = ADC_OVR_DATA_PRESERVED;
hadc1.Init.OversamplingMode = DISABLE;
if (HAL_ADC_Init(&hadc1) != HAL_OK)
{
Error_Handler();
}
/** Configure the ADC multi-mode
*/
multimode.Mode = ADC_MODE_INDEPENDENT;
if (HAL_ADCEx_MultiModeConfigChannel(&hadc1, &multimode) != HAL_OK)
{
Error_Handler();
}
/** Configure Regular Channel
*/
sConfig.Channel = ADC_CHANNEL_6;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SamplingTime = ADC_SAMPLETIME_2CYCLES_5;
sConfig.SingleDiff = ADC_SINGLE_ENDED;
sConfig.OffsetNumber = ADC_OFFSET_NONE;
sConfig.Offset = 0;
sConfig.OffsetSign = ADC_OFFSET_SIGN_NEGATIVE;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN ADC1_Init 2 */
/* USER CODE END ADC1_Init 2 */
}
/**
* @brief ADC2 Initialization Function
* None
* @retval None
*/
static void MX_ADC2_Init(void)
{
/* USER CODE BEGIN ADC2_Init 0 */
/* USER CODE END ADC2_Init 0 */
ADC_ChannelConfTypeDef sConfig = {0};
/* USER CODE BEGIN ADC2_Init 1 */
/* USER CODE END ADC2_Init 1 */
/** Common config
*/
hadc2.Instance = ADC2;
hadc2.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2;
hadc2.Init.Resolution = ADC_RESOLUTION_12B;
hadc2.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc2.Init.ScanConvMode = ADC_SCAN_DISABLE;
hadc2.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
hadc2.Init.LowPowerAutoWait = DISABLE;
hadc2.Init.ContinuousConvMode = DISABLE;
hadc2.Init.NbrOfConversion = 1;
hadc2.Init.DiscontinuousConvMode = DISABLE;
hadc2.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc2.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc2.Init.SamplingMode = ADC_SAMPLING_MODE_NORMAL;
hadc2.Init.ConversionDataManagement = ADC_CONVERSIONDATA_DR;
hadc2.Init.Overrun = ADC_OVR_DATA_PRESERVED;
hadc2.Init.OversamplingMode = DISABLE;
if (HAL_ADC_Init(&hadc2) != HAL_OK)
{
Error_Handler();
}
/** Configure Regular Channel
*/
sConfig.Channel = ADC_CHANNEL_6;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SamplingTime = ADC_SAMPLETIME_2CYCLES_5;
sConfig.SingleDiff = ADC_SINGLE_ENDED;
sConfig.OffsetNumber = ADC_OFFSET_NONE;
sConfig.Offset = 0;
sConfig.OffsetSign = ADC_OFFSET_SIGN_NEGATIVE;
if (HAL_ADC_ConfigChannel(&hadc2, &sConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN ADC2_Init 2 */
/* USER CODE END ADC2_Init 2 */
}
/**
* @brief DCMIPP Initialization Function
* None
* @retval None
*/
static void MX_DCMIPP_Init(void)
{
/* USER CODE BEGIN DCMIPP_Init 0 */
/* USER CODE END DCMIPP_Init 0 */
DCMIPP_ParallelConfTypeDef ParallelConfig = {0};
DCMIPP_PipeConfTypeDef PipeConfig = {0};
/* USER CODE BEGIN DCMIPP_Init 1 */
/* USER CODE END DCMIPP_Init 1 */
/** Pipe 0 Config
*/
phdcmipp.Instance = DCMIPP;
if (HAL_DCMIPP_Init(&phdcmipp) != HAL_OK)
{
Error_Handler();
}
ParallelConfig.PCKPolarity = DCMIPP_PCKPOLARITY_FALLING;
ParallelConfig.HSPolarity = DCMIPP_HSPOLARITY_LOW ;
ParallelConfig.VSPolarity = DCMIPP_VSPOLARITY_LOW ;
ParallelConfig.ExtendedDataMode = DCMIPP_INTERFACE_8BITS;
ParallelConfig.Format = DCMIPP_FORMAT_MONOCHROME_8B;
ParallelConfig.SwapBits = DCMIPP_SWAPBITS_DISABLE;
ParallelConfig.SwapCycles = DCMIPP_SWAPCYCLES_DISABLE;
ParallelConfig.SynchroMode = DCMIPP_SYNCHRO_HARDWARE;
HAL_DCMIPP_PARALLEL_SetConfig(&phdcmipp, &ParallelConfig);
PipeConfig.FrameRate = DCMIPP_FRAME_RATE_ALL;
if (HAL_DCMIPP_PIPE_SetConfig(&phdcmipp, DCMIPP_PIPE0, &PipeConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DCMIPP_Init 2 */
/* USER CODE END DCMIPP_Init 2 */
}
/**
* @brief FLASH Initialization Function
* None
* @retval None
*/
static void MX_FLASH_Init(void)
{
/* USER CODE BEGIN FLASH_Init 0 */
/* USER CODE END FLASH_Init 0 */
FLASH_OBProgramInitTypeDef pOBInit = {0};
/* USER CODE BEGIN FLASH_Init 1 */
/* USER CODE END FLASH_Init 1 */
HAL_FLASHEx_OBGetConfig(&pOBInit);
if ((pOBInit.USERConfig2 & OB_I2C_NI3C_I2C) != OB_I2C_NI3C_I2C)
{
if (HAL_FLASH_Unlock() != HAL_OK)
{
Error_Handler();
}
if (HAL_FLASH_OB_Unlock() != HAL_OK)
{
Error_Handler();
}
pOBInit.OptionType = OPTIONBYTE_USER;
pOBInit.USERType = OB_USER_I2C_NI3C;
pOBInit.USERConfig2 = OB_I2C_NI3C_I2C;
if (HAL_FLASHEx_OBProgram(&pOBInit) != HAL_OK)
{
Error_Handler();
}
if (HAL_FLASH_OB_Lock() != HAL_OK)
{
Error_Handler();
}
if (HAL_FLASH_Lock() != HAL_OK)
{
Error_Handler();
}
}
/* USER CODE BEGIN FLASH_Init 2 */
/* USER CODE END FLASH_Init 2 */
}
/**
* @brief I2C1 Initialization Function
* None
* @retval None
*/
static void MX_I2C1_Init(void)
{
/* USER CODE BEGIN I2C1_Init 0 */
/* USER CODE END I2C1_Init 0 */
/* USER CODE BEGIN I2C1_Init 1 */
/* USER CODE END I2C1_Init 1 */
hi2c1.Instance = I2C1;
hi2c1.Init.Timing = 0x20C0EDFF;
hi2c1.Init.OwnAddress1 = 0;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2 = 0;
hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c1) != HAL_OK)
{
Error_Handler();
}
/** Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
Error_Handler();
}
/** Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN I2C1_Init 2 */
/* USER CODE END I2C1_Init 2 */
}
/**
* @brief I2S6 Initialization Function
* None
* @retval None
*/
static void MX_I2S6_Init(void)
{
/* USER CODE BEGIN I2S6_Init 0 */
/* USER CODE END I2S6_Init 0 */
/* USER CODE BEGIN I2S6_Init 1 */
/* USER CODE END I2S6_Init 1 */
hi2s6.Instance = SPI6;
hi2s6.Init.Mode = I2S_MODE_MASTER_FULLDUPLEX;
hi2s6.Init.Standard = I2S_STANDARD_PHILIPS;
hi2s6.Init.DataFormat = I2S_DATAFORMAT_16B;
hi2s6.Init.MCLKOutput = I2S_MCLKOUTPUT_ENABLE;
hi2s6.Init.AudioFreq = I2S_AUDIOFREQ_8K;
hi2s6.Init.CPOL = I2S_CPOL_LOW;
hi2s6.Init.FirstBit = I2S_FIRSTBIT_MSB;
hi2s6.Init.WSInversion = I2S_WS_INVERSION_DISABLE;
hi2s6.Init.Data24BitAlignment = I2S_DATA_24BIT_ALIGNMENT_RIGHT;
hi2s6.Init.MasterKeepIOState = I2S_MASTER_KEEP_IO_STATE_DISABLE;
if (HAL_I2S_Init(&hi2s6) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN I2S6_Init 2 */
/* USER CODE END I2S6_Init 2 */
}
/**
* @brief LTDC Initialization Function
* None
* @retval None
*/
static void MX_LTDC_Init(void)
{
/* USER CODE BEGIN LTDC_Init 0 */
/* USER CODE END LTDC_Init 0 */
LTDC_LayerCfgTypeDef pLayerCfg = {0};
LTDC_LayerCfgTypeDef pLayerCfg1 = {0};
/* USER CODE BEGIN LTDC_Init 1 */
/* USER CODE END LTDC_Init 1 */
hltdc.Instance = LTDC;
hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc.Init.HorizontalSync = 7;
hltdc.Init.VerticalSync = 3;
hltdc.Init.AccumulatedHBP = 14;
hltdc.Init.AccumulatedVBP = 5;
hltdc.Init.AccumulatedActiveW = 654;
hltdc.Init.AccumulatedActiveH = 485;
hltdc.Init.TotalWidth = 660;
hltdc.Init.TotalHeigh = 487;
hltdc.Init.Backcolor.Blue = 0;
hltdc.Init.Backcolor.Green = 0;
hltdc.Init.Backcolor.Red = 0;
if (HAL_LTDC_Init(&hltdc) != HAL_OK)
{
Error_Handler();
}
pLayerCfg.WindowX0 = 0;
pLayerCfg.WindowX1 = 0;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = 0;
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_ARGB8888;
pLayerCfg.Alpha = 0;
pLayerCfg.Alpha0 = 0;
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_CA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_CA;
pLayerCfg.FBStartAdress = 0;
pLayerCfg.ImageWidth = 0;
pLayerCfg.ImageHeight = 0;
pLayerCfg.Backcolor.Blue = 0;
pLayerCfg.Backcolor.Green = 0;
pLayerCfg.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)
{
Error_Handler();
}
pLayerCfg1.WindowX0 = 0;
pLayerCfg1.WindowX1 = 0;
pLayerCfg1.WindowY0 = 0;
pLayerCfg1.WindowY1 = 0;
pLayerCfg1.PixelFormat = LTDC_PIXEL_FORMAT_ARGB8888;
pLayerCfg1.Alpha = 0;
pLayerCfg1.Alpha0 = 0;
pLayerCfg1.BlendingFactor1 = LTDC_BLENDING_FACTOR1_CA;
pLayerCfg1.BlendingFactor2 = LTDC_BLENDING_FACTOR2_CA;
pLayerCfg1.FBStartAdress = 0;
pLayerCfg1.ImageWidth = 0;
pLayerCfg1.ImageHeight = 0;
pLayerCfg1.Backcolor.Blue = 0;
pLayerCfg1.Backcolor.Green = 0;
pLayerCfg1.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg1, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN LTDC_Init 2 */
/* USER CODE END LTDC_Init 2 */
}
/**
* @brief SDMMC1 Initialization Function
* None
* @retval None
*/
static void MX_SDMMC1_SD_Init(void)
{
/* USER CODE BEGIN SDMMC1_Init 0 */
/* USER CODE END SDMMC1_Init 0 */
/* USER CODE BEGIN SDMMC1_Init 1 */
/* USER CODE END SDMMC1_Init 1 */
hsd1.Instance = SDMMC1;
hsd1.Init.ClockEdge = SDMMC_CLOCK_EDGE_FALLING;
hsd1.Init.ClockPowerSave = SDMMC_CLOCK_POWER_SAVE_DISABLE;
hsd1.Init.BusWide = SDMMC_BUS_WIDE_4B;
hsd1.Init.HardwareFlowControl = SDMMC_HARDWARE_FLOW_CONTROL_DISABLE;
hsd1.Init.ClockDiv = 1;
if (HAL_SD_Init(&hsd1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SDMMC1_Init 2 */
/* USER CODE END SDMMC1_Init 2 */
}
/**
* @brief SPI4 Initialization Function
* None
* @retval None
*/
static void MX_SPI4_Init(void)
{
/* USER CODE BEGIN SPI4_Init 0 */
/* USER CODE END SPI4_Init 0 */
/* USER CODE BEGIN SPI4_Init 1 */
/* USER CODE END SPI4_Init 1 */
/* SPI4 parameter configuration*/
hspi4.Instance = SPI4;
hspi4.Init.Mode = SPI_MODE_MASTER;
hspi4.Init.Direction = SPI_DIRECTION_2LINES;
hspi4.Init.DataSize = SPI_DATASIZE_4BIT;
hspi4.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi4.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi4.Init.NSS = SPI_NSS_SOFT;
hspi4.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
hspi4.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi4.Init.TIMode = SPI_TIMODE_DISABLE;
hspi4.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi4.Init.CRCPolynomial = 0x7;
hspi4.Init.NSSPMode = SPI_NSS_PULSE_ENABLE;
hspi4.Init.NSSPolarity = SPI_NSS_POLARITY_LOW;
hspi4.Init.FifoThreshold = SPI_FIFO_THRESHOLD_01DATA;
hspi4.Init.MasterSSIdleness = SPI_MASTER_SS_IDLENESS_00CYCLE;
hspi4.Init.MasterInterDataIdleness = SPI_MASTER_INTERDATA_IDLENESS_00CYCLE;
hspi4.Init.MasterReceiverAutoSusp = SPI_MASTER_RX_AUTOSUSP_DISABLE;
hspi4.Init.MasterKeepIOState = SPI_MASTER_KEEP_IO_STATE_DISABLE;
hspi4.Init.IOSwap = SPI_IO_SWAP_DISABLE;
hspi4.Init.ReadyMasterManagement = SPI_RDY_MASTER_MANAGEMENT_INTERNALLY;
hspi4.Init.ReadyPolarity = SPI_RDY_POLARITY_HIGH;
if (HAL_SPI_Init(&hspi4) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI4_Init 2 */
/* USER CODE END SPI4_Init 2 */
}
/**
* @brief UART4 Initialization Function
* None
* @retval None
*/
static void MX_UART4_Init(void)
{
/* USER CODE BEGIN UART4_Init 0 */
/* USER CODE END UART4_Init 0 */
/* USER CODE BEGIN UART4_Init 1 */
/* USER CODE END UART4_Init 1 */
huart4.Instance = UART4;
huart4.Init.BaudRate = 115200;
huart4.Init.WordLength = UART_WORDLENGTH_8B;
huart4.Init.StopBits = UART_STOPBITS_1;
huart4.Init.Parity = UART_PARITY_NONE;
huart4.Init.Mode = UART_MODE_TX_RX;
huart4.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart4.Init.OverSampling = UART_OVERSAMPLING_16;
huart4.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart4.Init.ClockPrescaler = UART_PRESCALER_DIV1;
huart4.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
if (HAL_UART_Init(&huart4) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetTxFifoThreshold(&huart4, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetRxFifoThreshold(&huart4, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_DisableFifoMode(&huart4) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN UART4_Init 2 */
/* USER CODE END UART4_Init 2 */
}
/**
* @brief UART7 Initialization Function
* None
* @retval None
*/
static void MX_UART7_Init(void)
{
/* USER CODE BEGIN UART7_Init 0 */
/* USER CODE END UART7_Init 0 */
/* USER CODE BEGIN UART7_Init 1 */
/* USER CODE END UART7_Init 1 */
huart7.Instance = UART7;
huart7.Init.BaudRate = 115200;
huart7.Init.WordLength = UART_WORDLENGTH_8B;
huart7.Init.StopBits = UART_STOPBITS_1;
huart7.Init.Parity = UART_PARITY_NONE;
huart7.Init.Mode = UART_MODE_TX_RX;
huart7.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart7.Init.OverSampling = UART_OVERSAMPLING_16;
huart7.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart7.Init.ClockPrescaler = UART_PRESCALER_DIV1;
huart7.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
if (HAL_UART_Init(&huart7) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetTxFifoThreshold(&huart7, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetRxFifoThreshold(&huart7, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_DisableFifoMode(&huart7) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN UART7_Init 2 */
/* USER CODE END UART7_Init 2 */
}
/**
* @brief UCPD1 Initialization Function
* None
* @retval None
*/
static void MX_UCPD1_Init(void)
{
/* USER CODE BEGIN UCPD1_Init 0 */
/* USER CODE END UCPD1_Init 0 */
LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
/* Peripheral clock enable */
LL_APB1_GRP2_EnableClock(LL_APB1_GRP2_PERIPH_UCPD1);
LL_AHB4_GRP1_EnableClock(LL_AHB4_GRP1_PERIPH_GPIOM);
/**UCPD1 GPIO Configuration
PM1 ------> UCPD1_CC2
PM0 ------> UCPD1_CC1
*/
GPIO_InitStruct.Pin = LL_GPIO_PIN_1|LL_GPIO_PIN_0;
GPIO_InitStruct.Mode = LL_GPIO_MODE_ANALOG;
GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
LL_GPIO_Init(GPIOM, &GPIO_InitStruct);
/* USER CODE BEGIN UCPD1_Init 1 */
/* USER CODE END UCPD1_Init 1 */
/* USER CODE BEGIN UCPD1_Init 2 */
/* USER CODE END UCPD1_Init 2 */
}
/**
* @brief USB_OTG_FS Initialization Function
* None
* @retval None
*/
static void MX_USB_OTG_FS_PCD_Init(void)
{
/* USER CODE BEGIN USB_OTG_FS_PCD_Init 0 */
/* USER CODE END USB_OTG_FS_PCD_Init 0 */
/* USER CODE BEGIN USB_OTG_FS_PCD_Init 1 */
/* USER CODE END USB_OTG_FS_PCD_Init 1 */
hpcd_USB_OTG_FS.Instance = USB_OTG_FS;
hpcd_USB_OTG_FS.Init.dev_endpoints = 6;
hpcd_USB_OTG_FS.Init.speed = PCD_SPEED_FULL;
hpcd_USB_OTG_FS.Init.phy_itface = PCD_PHY_EMBEDDED;
hpcd_USB_OTG_FS.Init.dma_enable = DISABLE;
hpcd_USB_OTG_FS.Init.Sof_enable = DISABLE;
hpcd_USB_OTG_FS.Init.low_power_enable = DISABLE;
hpcd_USB_OTG_FS.Init.lpm_enable = DISABLE;
hpcd_USB_OTG_FS.Init.battery_charging_enable = DISABLE;
hpcd_USB_OTG_FS.Init.use_dedicated_ep1 = DISABLE;
hpcd_USB_OTG_FS.Init.vbus_sensing_enable = DISABLE;
if (HAL_PCD_Init(&hpcd_USB_OTG_FS) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USB_OTG_FS_PCD_Init 2 */
/* USER CODE END USB_OTG_FS_PCD_Init 2 */
}
/**
* @brief USB_OTG_HS Initialization Function
* None
* @retval None
*/
static void MX_USB_OTG_HS_HCD_Init(void)
{
/* USER CODE BEGIN USB_OTG_HS_HCD_Init 0 */
/* USER CODE END USB_OTG_HS_HCD_Init 0 */
/* USER CODE BEGIN USB_OTG_HS_HCD_Init 1 */
/* USER CODE END USB_OTG_HS_HCD_Init 1 */
hhcd_USB_OTG_HS.Instance = USB_OTG_HS;
hhcd_USB_OTG_HS.Init.Host_channels = 16;
hhcd_USB_OTG_HS.Init.speed = HCD_SPEED_HIGH;
hhcd_USB_OTG_HS.Init.dma_enable = DISABLE;
hhcd_USB_OTG_HS.Init.phy_itface = USB_OTG_HS_EMBEDDED_PHY;
hhcd_USB_OTG_HS.Init.Sof_enable = DISABLE;
hhcd_USB_OTG_HS.Init.low_power_enable = DISABLE;
hhcd_USB_OTG_HS.Init.use_external_vbus = ENABLE;
if (HAL_HCD_Init(&hhcd_USB_OTG_HS) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USB_OTG_HS_HCD_Init 2 */
/* USER CODE END USB_OTG_HS_HCD_Init 2 */
}
/**
* @brief GPIO Initialization Function
* None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOM_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPION_CLK_ENABLE();
__HAL_RCC_GPIOO_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOM, LD4_Pin|UCPD1_PWR_EN_Pin|LD3_Pin|Audio_RSTn_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(LCD_ON_OFF_GPIO_Port, LCD_ON_OFF_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOF, CAMERA_PWR_EN_Pin|SPI_CS_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(LCD_BL_CTRL_GPIO_Port, LCD_BL_CTRL_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(CAMERA_RSTI_GPIO_Port, CAMERA_RSTI_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_RESET);
/*Configure GPIO pins : LD4_Pin UCPD1_PWR_EN_Pin LD3_Pin Audio_RSTn_Pin */
GPIO_InitStruct.Pin = LD4_Pin|UCPD1_PWR_EN_Pin|LD3_Pin|Audio_RSTn_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOM, &GPIO_InitStruct);
/*Configure GPIO pin : MIC_CK_Pin */
GPIO_InitStruct.Pin = MIC_CK_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF1_ADF1;
HAL_GPIO_Init(MIC_CK_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : RMII_REF_CLK_Pin */
GPIO_InitStruct.Pin = RMII_REF_CLK_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF4_ETH;
HAL_GPIO_Init(RMII_REF_CLK_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : SD_DETECT_Pin UCPD1_INT_Pin */
GPIO_InitStruct.Pin = SD_DETECT_Pin|UCPD1_INT_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOM, &GPIO_InitStruct);
/*Configure GPIO pin : LCD_ON_OFF_Pin */
GPIO_InitStruct.Pin = LCD_ON_OFF_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(LCD_ON_OFF_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : USER_Pin */
GPIO_InitStruct.Pin = USER_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(USER_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : RMII_TX_EN_Pin */
GPIO_InitStruct.Pin = RMII_TX_EN_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF11_ETH;
HAL_GPIO_Init(RMII_TX_EN_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : LCD_INT_Pin */
GPIO_InitStruct.Pin = LCD_INT_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(LCD_INT_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : CAMERA_PWR_EN_Pin SPI_CS_Pin */
GPIO_InitStruct.Pin = CAMERA_PWR_EN_Pin|SPI_CS_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
/*Configure GPIO pin : LCD_BL_CTRL_Pin */
GPIO_InitStruct.Pin = LCD_BL_CTRL_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(LCD_BL_CTRL_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : CAMERA_RSTI_Pin */
GPIO_InitStruct.Pin = CAMERA_RSTI_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(CAMERA_RSTI_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : RMII_MDC_Pin RMII_RXD0_Pin RMII_RXD1_Pin */
GPIO_InitStruct.Pin = RMII_MDC_Pin|RMII_RXD0_Pin|RMII_RXD1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF11_ETH;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pins : RMII_MDIO_Pin RMII_CRS_DV_Pin */
GPIO_InitStruct.Pin = RMII_MDIO_Pin|RMII_CRS_DV_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF11_ETH;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pins : RMII_TXD0_Pin RMII_RX_ER_Pin RMII_TXD1_Pin */
GPIO_InitStruct.Pin = RMII_TXD0_Pin|RMII_RX_ER_Pin|RMII_TXD1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF11_ETH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/*Configure GPIO pin : LD2_Pin */
GPIO_InitStruct.Pin = LD2_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(LD2_GPIO_Port, &GPIO_InitStruct);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* file: pointer to the source file name
* line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
Hello @cbarb2747
I confirm that, on my side, both UART4 and UART7 are working correctly on the STM32H7S78-DK board.
UART7 is mapped to pins PE7 (RX) and PE8 (TX), and they are routed to connector CN14, signals D1 (RX) and D0 (TX).
Please find attached the main.c and stm32h7rsxx_hal_msp.c files that I used for this test.
These files include the UART initialization and pin configuration currently working on my setup. You can use them as a reference
Br,
