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uart config without HAL

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This commit is contained in:
Eggert Jung
2025-04-25 23:02:37 +02:00
parent 51f3791ddf
commit 379255caf7
8 changed files with 54 additions and 251 deletions
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3
Inc/main.h
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@@ -41,7 +41,8 @@ extern "C" {
/* Exported constants --------------------------------------------------------*/
/* USER CODE BEGIN EC */
#define BUFFER_SIZE 8
extern uint8_t rxBuffer[BUFFER_SIZE];
/* USER CODE END EC */
/* Exported macro ------------------------------------------------------------*/

2
Inc/stm32g0xx_hal_conf.h
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@@ -55,7 +55,7 @@ extern "C" {
/* #define HAL_SMBUS_MODULE_ENABLED */
/* #define HAL_SPI_MODULE_ENABLED */
/* #define HAL_TIM_MODULE_ENABLED */
#define HAL_UART_MODULE_ENABLED
/* #define HAL_UART_MODULE_ENABLED */
/* #define HAL_USART_MODULE_ENABLED */
/* #define HAL_WWDG_MODULE_ENABLED */
#define HAL_GPIO_MODULE_ENABLED

2
Inc/stm32g0xx_it.h
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@@ -51,8 +51,6 @@ void HardFault_Handler(void);
void SVC_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
void DMA1_Channel1_IRQHandler(void);
void DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX1_OVR_IRQHandler(void);
/* USER CODE BEGIN EFP */
/* USER CODE END EFP */

6
Makefile
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@@ -1,5 +1,5 @@
##########################################################################################################################
# File automatically-generated by tool: [projectgenerator] version: [4.2.0-B44] date: [Thu Apr 24 03:11:06 CEST 2025]
# File automatically-generated by tool: [projectgenerator] version: [4.2.0-B44] date: [Fri Apr 25 22:56:53 CEST 2025]
##########################################################################################################################
# ------------------------------------------------
@@ -58,9 +58,7 @@ Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_exti.c \
Drivers/RTT/RTT/SEGGER_RTT.c \
Drivers/RTT/RTT/SEGGER_RTT_printf.c \
Drivers/RTT/Syscalls/SEGGER_RTT_Syscalls_GCC.c \
Src/system_stm32g0xx.c \
Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_uart.c \
Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_uart_ex.c
Src/system_stm32g0xx.c
# ASM sources
ASM_SOURCES = \

47
Parafraktor.ioc
View File

@@ -2,61 +2,33 @@
CAD.formats=
CAD.pinconfig=
CAD.provider=
Dma.Request0=USART1_RX
Dma.RequestsNb=1
Dma.USART1_RX.0.Direction=DMA_PERIPH_TO_MEMORY
Dma.USART1_RX.0.EventEnable=DISABLE
Dma.USART1_RX.0.Instance=DMA1_Channel1
Dma.USART1_RX.0.MemDataAlignment=DMA_MDATAALIGN_BYTE
Dma.USART1_RX.0.MemInc=DMA_MINC_ENABLE
Dma.USART1_RX.0.Mode=DMA_NORMAL
Dma.USART1_RX.0.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
Dma.USART1_RX.0.PeriphInc=DMA_PINC_DISABLE
Dma.USART1_RX.0.Polarity=HAL_DMAMUX_REQ_GEN_RISING
Dma.USART1_RX.0.Priority=DMA_PRIORITY_LOW
Dma.USART1_RX.0.RequestNumber=1
Dma.USART1_RX.0.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,SignalID,Polarity,RequestNumber,SyncSignalID,SyncPolarity,SyncEnable,EventEnable,SyncRequestNumber
Dma.USART1_RX.0.SignalID=NONE
Dma.USART1_RX.0.SyncEnable=DISABLE
Dma.USART1_RX.0.SyncPolarity=HAL_DMAMUX_SYNC_NO_EVENT
Dma.USART1_RX.0.SyncRequestNumber=1
Dma.USART1_RX.0.SyncSignalID=NONE
File.Version=6
GPIO.groupedBy=
KeepUserPlacement=false
Mcu.CPN=STM32G0B1VET6
Mcu.Family=STM32G0
Mcu.IP0=DMA
Mcu.IP1=NVIC
Mcu.IP2=RCC
Mcu.IP3=SYS
Mcu.IP4=USART1
Mcu.IPNb=5
Mcu.IP0=NVIC
Mcu.IP1=RCC
Mcu.IP2=SYS
Mcu.IPNb=3
Mcu.Name=STM32G0B1V(B-C-E)Tx
Mcu.Package=LQFP100
Mcu.Pin0=PF0-OSC_IN (PF0)
Mcu.Pin1=PF1-OSC_OUT (PF1)
Mcu.Pin2=PC4
Mcu.Pin3=PC5
Mcu.Pin4=VP_SYS_VS_Systick
Mcu.Pin5=VP_SYS_VS_DBSignals
Mcu.PinsNb=6
Mcu.Pin2=VP_SYS_VS_Systick
Mcu.Pin3=VP_SYS_VS_DBSignals
Mcu.PinsNb=4
Mcu.ThirdPartyNb=0
Mcu.UserConstants=
Mcu.UserName=STM32G0B1VETx
MxCube.Version=6.10.0
MxDb.Version=DB.6.0.100
NVIC.DMA1_Channel1_IRQn=true\:0\:0\:false\:false\:true\:false\:true\:true
NVIC.ForceEnableDMAVector=true
NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
NVIC.PendSV_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
NVIC.SVC_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:true
NVIC.SysTick_IRQn=true\:3\:0\:false\:false\:true\:false\:true\:false
PC4.Mode=Asynchronous
PC4.Signal=USART1_TX
PC5.Mode=Asynchronous
PC5.Signal=USART1_RX
PF0-OSC_IN\ (PF0).Mode=HSE-External-Oscillator
PF0-OSC_IN\ (PF0).Signal=RCC_OSC_IN
PF1-OSC_OUT\ (PF1).Mode=HSE-External-Oscillator
@@ -92,7 +64,7 @@ ProjectManager.ToolChainLocation=
ProjectManager.UAScriptAfterPath=
ProjectManager.UAScriptBeforePath=
ProjectManager.UnderRoot=false
ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_DMA_Init-DMA-false-HAL-true,4-MX_USART1_UART_Init-USART1-false-HAL-true
ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_USART1_UART_Init-USART1-false-HAL-true
RCC.ADCFreq_Value=32000000
RCC.AHBFreq_Value=32000000
RCC.APBFreq_Value=32000000
@@ -136,9 +108,6 @@ RCC.USART3Freq_Value=32000000
RCC.USBFreq_Value=48000000
RCC.VCOInputFreq_Value=8000000
RCC.VCOOutputFreq_Value=64000000
USART1.BaudRate=250000
USART1.IPParameters=VirtualMode-Asynchronous,BaudRate
USART1.VirtualMode-Asynchronous=VM_ASYNC
VP_SYS_VS_DBSignals.Mode=DisableDeadBatterySignals
VP_SYS_VS_DBSignals.Signal=SYS_VS_DBSignals
VP_SYS_VS_Systick.Mode=SysTick

117
Src/main.c
View File

@@ -23,7 +23,7 @@
/* USER CODE BEGIN Includes */
#include "SEGGER_RTT.h"
#include "stm32g0b1xx.h"
#include "uart.h"
#include "stm32g0xx_hal_cortex.h"
#include <stdint.h>
#include <stdio.h>
/* USER CODE END Includes */
@@ -44,8 +44,6 @@
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
UART_HandleTypeDef huart1;
DMA_HandleTypeDef hdma_usart1_rx;
/* USER CODE BEGIN PV */
@@ -54,16 +52,33 @@ DMA_HandleTypeDef hdma_usart1_rx;
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_USART1_UART_Init(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#define BUFFER_SIZE 64
#define BUFFER_SIZE 8
uint8_t rxBuffer[BUFFER_SIZE];
void init_UART1(){
USART1->CR1 &= ~USART_CR1_UE;
RCC->APBENR2 |= RCC_APBENR2_USART1EN;
RCC->IOPENR |= RCC_IOPENR_GPIOCEN;
GPIOC->MODER &= ~GPIO_MODER_MODE5; // Alternate function mode on RX pin
GPIOC->MODER |= GPIO_MODER_MODE5_1;
GPIOC->AFR[0] &= GPIO_AFRL_AFSEL5;
GPIOC->AFR[0] |= 1 << GPIO_AFRL_AFSEL5_Pos;
USART1->BRR = 128; // 32000000÷250000
USART1->CR3 |= USART_CR3_EIE;
USART1->CR1 = USART_CR1_RE;
USART1->CR1 |= USART_CR1_UE;
HAL_NVIC_SetPriority(USART1_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(USART1_IRQn);
}
/* USER CODE END 0 */
/**
@@ -95,17 +110,31 @@ int main(void)
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_DMA_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
HAL_UART_Receive_DMA(&huart1, rxBuffer, BUFFER_SIZE);
init_UART1();
printf("CR1 init: 0x%02lX\n", USART1->CR1 );
printf("CR2 init: 0x%02lX\n", USART1->CR2 );
printf("CR3 init: 0x%02lX\n", USART1->CR3 );
printf("BRR init: 0x%02lX\n", USART1->BRR );
printf("GTPR init: 0x%02lX\n", USART1->GTPR );
printf("RTOR init: 0x%02lX\n", USART1->RTOR );
printf("RQR init: 0x%02lX\n", USART1->RQR );
printf("ISR init: 0x%02lX\n", USART1->ISR );
printf("ICR init: 0x%02lX\n", USART1->ICR );
printf("RDR init: 0x%02lX\n", USART1->RDR );
printf("TDR init: 0x%02lX\n", USART1->TDR );
printf("PRESC init: 0x%02lX\n", USART1->PRESC);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
//HAL_UART_Receive_DMA(&huart1, rxBuffer, BUFFER_SIZE);
while (1)
{
printf("buf: %s\n", rxBuffer);
if(USART1->ISR & USART_ISR_RXNE_RXFNE)
printf("char: '%c'\n", USART1->RDR);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
@@ -158,73 +187,6 @@ void SystemClock_Config(void)
}
/**
* @brief USART1 Initialization Function
* @param None
* @retval None
*/
static void MX_USART1_UART_Init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate = 250000;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart1.Init.ClockPrescaler = UART_PRESCALER_DIV1;
huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetTxFifoThreshold(&huart1, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetRxFifoThreshold(&huart1, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_DisableFifoMode(&huart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART1_Init 2 */
/* USER CODE END USART1_Init 2 */
}
/**
* Enable DMA controller clock
*/
static void MX_DMA_Init(void)
{
/* DMA controller clock enable */
__HAL_RCC_DMA1_CLK_ENABLE();
/* DMA interrupt init */
/* DMA1_Channel1_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);
/* DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX1_OVR_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX1_OVR_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX1_OVR_IRQn);
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
@@ -236,7 +198,6 @@ static void MX_GPIO_Init(void)
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */

97
Src/stm32g0xx_hal_msp.c
View File

@@ -24,7 +24,6 @@
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
extern DMA_HandleTypeDef hdma_usart1_rx;
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN TD */
@@ -82,102 +81,6 @@ void HAL_MspInit(void)
/* USER CODE END MspInit 1 */
}
/**
* @brief UART MSP Initialization
* This function configures the hardware resources used in this example
* @param huart: UART handle pointer
* @retval None
*/
void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
if(huart->Instance==USART1)
{
/* USER CODE BEGIN USART1_MspInit 0 */
/* USER CODE END USART1_MspInit 0 */
/** Initializes the peripherals clocks
*/
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK1;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
{
Error_Handler();
}
/* Peripheral clock enable */
__HAL_RCC_USART1_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
/**USART1 GPIO Configuration
PC4 ------> USART1_TX
PC5 ------> USART1_RX
*/
GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_5;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF1_USART1;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/* USART1 DMA Init */
/* USART1_RX Init */
hdma_usart1_rx.Instance = DMA1_Channel1;
hdma_usart1_rx.Init.Request = DMA_REQUEST_USART1_RX;
hdma_usart1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_usart1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_usart1_rx.Init.MemInc = DMA_MINC_ENABLE;
hdma_usart1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_usart1_rx.Init.Mode = DMA_NORMAL;
hdma_usart1_rx.Init.Priority = DMA_PRIORITY_LOW;
if (HAL_DMA_Init(&hdma_usart1_rx) != HAL_OK)
{
Error_Handler();
}
__HAL_LINKDMA(huart,hdmarx,hdma_usart1_rx);
/* USER CODE BEGIN USART1_MspInit 1 */
/* USER CODE END USART1_MspInit 1 */
}
}
/**
* @brief UART MSP De-Initialization
* This function freeze the hardware resources used in this example
* @param huart: UART handle pointer
* @retval None
*/
void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
{
if(huart->Instance==USART1)
{
/* USER CODE BEGIN USART1_MspDeInit 0 */
/* USER CODE END USART1_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_USART1_CLK_DISABLE();
/**USART1 GPIO Configuration
PC4 ------> USART1_TX
PC5 ------> USART1_RX
*/
HAL_GPIO_DeInit(GPIOC, GPIO_PIN_4|GPIO_PIN_5);
/* USART1 DMA DeInit */
HAL_DMA_DeInit(huart->hdmarx);
/* USER CODE BEGIN USART1_MspDeInit 1 */
/* USER CODE END USART1_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */

31
Src/stm32g0xx_it.c
View File

@@ -22,6 +22,7 @@
#include "stm32g0xx_it.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stdio.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
@@ -55,7 +56,7 @@
/* USER CODE END 0 */
/* External variables --------------------------------------------------------*/
extern DMA_HandleTypeDef hdma_usart1_rx;
/* USER CODE BEGIN EV */
/* USER CODE END EV */
@@ -140,34 +141,6 @@ void SysTick_Handler(void)
/* please refer to the startup file (startup_stm32g0xx.s). */
/******************************************************************************/
/**
* @brief This function handles DMA1 channel 1 interrupt.
*/
void DMA1_Channel1_IRQHandler(void)
{
/* USER CODE BEGIN DMA1_Channel1_IRQn 0 */
/* USER CODE END DMA1_Channel1_IRQn 0 */
HAL_DMA_IRQHandler(&hdma_usart1_rx);
/* USER CODE BEGIN DMA1_Channel1_IRQn 1 */
/* USER CODE END DMA1_Channel1_IRQn 1 */
}
/**
* @brief This function handles DMA1 Ch4 to Ch7, DMA2 Ch1 to Ch5 and DMAMUX1 Overrun Interrupts.
*/
void DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX1_OVR_IRQHandler(void)
{
/* USER CODE BEGIN DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX1_OVR_IRQn 0 */
/* USER CODE END DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX1_OVR_IRQn 0 */
/* USER CODE BEGIN DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX1_OVR_IRQn 1 */
/* USER CODE END DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX1_OVR_IRQn 1 */
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */