Communication between two stm32l031k6 (lib STM32cubemx)

[ibrahim]

Posted on July 07, 2016 at 10:50

Hello xD,

I want to communicate with two STM32L031K6 in SPI with the library HAL for STM32CubeMX. I configure a Master with emission interruption and the other in slave reception with interruption. and I connect the two STM32 with son (PA5) MOSI --- (PA5)MOSI, (PB4)MISO--- MISO (PB5) SCK --- SCK. But I can not communicate or to receive the data. I do not know why. That is my program. Thank you very much. spi.c

/* Includes ------------------------------------------------------------------*/

#include ''spi.h'' #include ''gpio.h'' extern __IO uint8_t data_get[1]; SPI_HandleTypeDef hspi1; /* SPI1 init function */ void MX_SPI1_Init(void) { hspi1.Instance = SPI1; /* master mode for stm32 send data */ hspi1.Init.Mode = SPI_MODE_MASTER; /* slave mode for stm32 receive data */ //hspi1.Init.Mode = SPI_MODE_SLAVE; hspi1.Init.Direction = SPI_DIRECTION_2LINES; hspi1.Init.DataSize = SPI_DATASIZE_8BIT; hspi1.Init.CLKPolarity = SPI_POLARITY_LOW; hspi1.Init.CLKPhase = SPI_PHASE_1EDGE; hspi1.Init.NSS = SPI_NSS_SOFT; hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4; hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB; hspi1.Init.TIMode = SPI_TIMODE_DISABLE; hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE; hspi1.Init.CRCPolynomial = 7; if (HAL_SPI_Init(&hspi1) != HAL_OK) { Error_Handler(); } } void HAL_SPI_MspInit(SPI_HandleTypeDef* spiHandle) { GPIO_InitTypeDef GPIO_InitStruct; if(spiHandle->Instance==SPI1) { /* Peripheral clock enable */ __HAL_RCC_SPI1_CLK_ENABLE(); /**SPI1 GPIO Configuration PA5 ------> SPI1_SCK PB4 ------> SPI1_MISO PB5 ------> SPI1_MOSI */ GPIO_InitStruct.Pin = GPIO_PIN_5; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; GPIO_InitStruct.Alternate = GPIO_AF0_SPI1; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); 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_VERY_HIGH; GPIO_InitStruct.Alternate = GPIO_AF0_SPI1; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); } } void HAL_SPI_MspDeInit(SPI_HandleTypeDef* spiHandle) { if(spiHandle->Instance==SPI1) { /* Peripheral clock disable */ __HAL_RCC_SPI1_CLK_DISABLE(); /**SPI1 GPIO Configuration PA5 ------> SPI1_SCK PB4 ------> SPI1_MISO PB5 ------> SPI1_MOSI */ HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5); HAL_GPIO_DeInit(GPIOB, GPIO_PIN_4|GPIO_PIN_5); } } main.c

/* Includes ------------------------------------------------------------------*/

#include ''stm32l0xx_hal.h''

#include <..\MDK-ARM\Hardware.h>

#include ''usart.h''

#include ''gpio.h''

#include ''tim.h''

#include ''spi.h''

#define BUFFERSIZE 100

volatile uint8_t data_get[1];

volatile uint8_t Save_data[1];

volatile int Index_BufferRx_SPI = 0;

int count_data = 0;

volatile uint8_t SPIStatus;

volatile uint8_t aTxBuffer[BUFFERSIZE] = ''SPI Master/Slave : Communication between two SPI using Interrupts'';

volatile uint8_t aRxbuffer[BUFFERSIZE];

int main(void)

{

/* initialization UART, SPI, TIMER and GPIO */

HW_Init();

#if 0

/* Enable flag interrupt emission */

__HAL_SPI_ENABLE_IT(&hspi1, (SPI_IT_TXE));

HAL_SPI_Transmit_IT(&hspi1, (uint8_t *) aTxBuffer, 100);

#endif

#if 1

/* Enable flag interrupt recption */

__HAL_SPI_ENABLE_IT(&hspi1, (SPI_IT_RXNE));

HAL_SPI_Receive_IT(&hspi1, (uint8_t *) data_get, 1);

#endif

while(1)

{

}

}

void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi)

{

if(hspi->Instance == hspi1.Instance)

{

/* Save data and filling the table aRxbuffer */

Save_data[0] = data_get[0];

aRxbuffer[Index_BufferRx_SPI] = Save_data[0];

Index_BufferRx_SPI++;

}

/* it's ok to receive anathor data */

SPIStatus = HAL_SPI_Receive_IT(&hspi1, (uint8_t *) data_get, 1);

while(SPIStatus != HAL_OK)

{

HAL_SPI_Receive_IT(&hspi1, (uint8_t *) data_get, 1);

}

Index_BufferRx_SPI = 0;

}

void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi)

{

if(hspi->Instance == hspi1.Instance)

{

SPIStatus = HAL_SPI_Transmit_IT(&hspi1, (uint8_t *) aTxBuffer, 100);

while(SPIStatus != HAL_OK)

{

HAL_SPI_Transmit_IT(&hspi1, (uint8_t *) aTxBuffer, 100);

}

}

}

#stm32 #spi #stm32l0

[serg2]

Posted on July 08, 2016 at 09:49

-removed.