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/* ... */
#include "main.h"
/* ... */
/* ... */
Includes
#define MASTER_BOARD
Private macro
SPI_HandleTypeDef SpiHandle;
uint16_t aTxBuffer[] = {0x1234,0x5678,0x9ABC,0xDEF0,0x1234,0x5678,0x9ABC,0xDEF0,0x1234,0x5678,0x9ABC,0xDEF0,0x1234,0x5678,0x9ABC,0xDEF0,0x1234,0x5678,0x9ABC,0xDEF0,0x1234,0x5678,0x9ABC,0xDEF0,0x1234,0x5678,0x9ABC,0xDEF0,0x1234,0x5678,0x9ABC,0xDEF0,0x1234,0x5678,0x9ABC,0xDEF0,0x1234,0x5678,0x9ABC,0xDEF0};
__IO uint16_t ubNbDataToTransmit = BUFFERSIZE;
__IO uint8_t ubTransmitIndex = 0;
uint16_t aRxBuffer[BUFFERSIZE];
__IO uint16_t ubNbDataToReceive = BUFFERSIZE;
__IO uint8_t ubReceiveIndex = 0;
Private variables
static void SystemClock_Config(void);
static void Error_Handler(void);
static uint16_t Buffercmp(uint8_t *pBuffer1, uint8_t *pBuffer2, uint16_t BufferLength);
Private function prototypes
/* ... */
int main(void)
{
/* ... */
HAL_Init();
SystemClock_Config();
BSP_LED_Init(LED2);
SpiHandle.Instance = SPIx;
SpiHandle.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;
SpiHandle.Init.Direction = SPI_DIRECTION_2LINES;
SpiHandle.Init.CLKPhase = SPI_PHASE_1EDGE;
SpiHandle.Init.CLKPolarity = SPI_POLARITY_LOW;
SpiHandle.Init.DataSize = SPI_DATASIZE_16BIT;
SpiHandle.Init.FirstBit = SPI_FIRSTBIT_MSB;
SpiHandle.Init.TIMode = SPI_TIMODE_DISABLE;
SpiHandle.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
SpiHandle.Init.CRCPolynomial = 7;
SpiHandle.Init.NSS = SPI_NSS_SOFT;
#ifdef MASTER_BOARD
SpiHandle.Init.Mode = SPI_MODE_MASTER;
#else
SpiHandle.Init.Mode = SPI_MODE_SLAVE;
#endif
if(HAL_SPI_Init(&SpiHandle) != HAL_OK)
{
Error_Handler();
}if (HAL_SPI_Init(&SpiHandle) != HAL_OK) { ... }
#ifdef MASTER_BOARD
BSP_PB_Init(BUTTON_KEY, BUTTON_MODE_GPIO);
while (BSP_PB_GetState(BUTTON_KEY) == GPIO_PIN_SET)
{
BSP_LED_Toggle(LED2);
HAL_Delay(100);
}while (BSP_PB_GetState(BUTTON_KEY) == GPIO_PIN_SET) { ... }
BSP_LED_Off(LED2);/* ... */
#endif
LL_SPI_Enable(SpiHandle.Instance);
while(ubNbDataToReceive > 0)
{
if(( LL_SPI_IsActiveFlag_TXE(SpiHandle.Instance)) && (ubNbDataToTransmit > 0))
{
LL_SPI_TransmitData16(SpiHandle.Instance, aTxBuffer[ubTransmitIndex++]);
ubNbDataToTransmit--;
}if (( LL_SPI_IsActiveFlag_TXE(SpiHandle.Instance)) && (ubNbDataToTransmit > 0)) { ... }
if(LL_SPI_IsActiveFlag_RXNE(SpiHandle.Instance))
{
aRxBuffer[ubReceiveIndex++] = LL_SPI_ReceiveData16(SpiHandle.Instance);
ubNbDataToReceive--;
}if (LL_SPI_IsActiveFlag_RXNE(SpiHandle.Instance)) { ... }
}while (ubNbDataToReceive > 0) { ... }
if (Buffercmp((uint8_t *)aTxBuffer, (uint8_t *)aRxBuffer, COUNTOF(aTxBuffer)))
{
Error_Handler();
}if (Buffercmp((uint8_t *)aTxBuffer, (uint8_t *)aRxBuffer, COUNTOF(aTxBuffer))) { ... }
else
{
BSP_LED_On(LED2);
}else { ... }
while (1)
{
}while (1) { ... }
}{ ... }
/* ... */
static void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
__HAL_RCC_PWR_CLK_ENABLE();
/* ... */
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 400;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { ... }
/* ... */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if(HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3) != HAL_OK)
{
Error_Handler();
}if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3) != HAL_OK) { ... }
}{ ... }
/* ... */
static void Error_Handler(void)
{
while(1)
{
BSP_LED_Toggle(LED2);
HAL_Delay(1000);
}while (1) { ... }
}{ ... }
/* ... */
static uint16_t Buffercmp(uint8_t *pBuffer1, uint8_t *pBuffer2, uint16_t BufferLength)
{
while (BufferLength--)
{
if((*pBuffer1) != *pBuffer2)
{
return BufferLength;
}if ((*pBuffer1) != *pBuffer2) { ... }
pBuffer1++;
pBuffer2++;
}while (BufferLength--) { ... }
return 0;
}{ ... }
#ifdef USE_FULL_ASSERT
/* ... */
void assert_failed(uint8_t *file, uint32_t line)
{
/* ... */
while (1)
{
}while (1) { ... }
}assert_failed (uint8_t *file, uint32_t line) { ... }
/* ... */#endif
/* ... */
/* ... */