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/* ... */
#include "main.h"
/* ... */
/* ... */
Includes
#define BUFFER_SIZE ((uint32_t)0x1000)
#define WRITE_READ_ADDR ((uint32_t)0x0800)
#define WRITING_OFFSET ((uint32_t)0xC20F)
Private define
SRAM_HandleTypeDef psramHandle;
FMC_NORSRAM_TimingTypeDef Timing;
uint16_t aTxBuffer[BUFFER_SIZE];
uint16_t aRxBuffer[BUFFER_SIZE];
__IO uint32_t uwWriteReadStatus = 0;
uint32_t uwIndex = 0;
Private variables
static void SystemClock_Config(void);
static void Error_Handler(void);
static void PSRAM_Init(void);
static void Fill_Buffer(uint16_t *pBuffer, uint32_t uwBufferLength, uint32_t uwOffset);
static uint8_t Buffercmp(uint16_t *pBuffer1, uint16_t *pBuffer2, uint16_t BufferLength);Private function prototypes
/* ... */
int main(void)
{
/* ... */
HAL_Init();
SystemClock_Config();
BSP_LED_Init(LED3);
BSP_LED_Init(LED4);
PSRAM_Init();
Fill_Buffer(aTxBuffer, BUFFER_SIZE, WRITING_OFFSET);
HAL_SRAM_Write_16b(&psramHandle, (uint32_t *)(PSRAM_BANK_ADDR + WRITE_READ_ADDR), aTxBuffer, BUFFER_SIZE);
HAL_SRAM_Read_16b(&psramHandle, (uint32_t *)(PSRAM_BANK_ADDR + WRITE_READ_ADDR), aRxBuffer, BUFFER_SIZE);
uwWriteReadStatus = Buffercmp(aTxBuffer, aRxBuffer, BUFFER_SIZE);
if(uwWriteReadStatus)
{
BSP_LED_On(LED4);
...}
else
{
BSP_LED_On(LED3);
}else { ... }
while (1)
{
}while (1) { ... }
}{ ... }
/* ... */
static void PSRAM_Init(void)
{
psramHandle.Instance = FSMC_NORSRAM_DEVICE;
psramHandle.Extended = FSMC_NORSRAM_EXTENDED_DEVICE;
Timing.AddressSetupTime = 3;
Timing.AddressHoldTime = 1;
Timing.DataSetupTime = 4;
Timing.BusTurnAroundDuration = 1;
Timing.CLKDivision = 2;
Timing.DataLatency = 2;
Timing.AccessMode = FSMC_ACCESS_MODE_A;
psramHandle.Init.NSBank = FSMC_NORSRAM_BANK1;
psramHandle.Init.DataAddressMux = FSMC_DATA_ADDRESS_MUX_DISABLE;
psramHandle.Init.MemoryType = FSMC_MEMORY_TYPE_SRAM;
psramHandle.Init.MemoryDataWidth = PSRAM_MEMORY_WIDTH;
psramHandle.Init.BurstAccessMode = FSMC_BURST_ACCESS_MODE_DISABLE;
psramHandle.Init.WaitSignalPolarity = FSMC_WAIT_SIGNAL_POLARITY_LOW;
psramHandle.Init.WaitSignalActive = FSMC_WAIT_TIMING_BEFORE_WS;
psramHandle.Init.WriteOperation = FSMC_WRITE_OPERATION_ENABLE;
psramHandle.Init.WaitSignal = FSMC_WAIT_SIGNAL_DISABLE;
psramHandle.Init.ExtendedMode = FSMC_EXTENDED_MODE_DISABLE;
psramHandle.Init.AsynchronousWait = FSMC_ASYNCHRONOUS_WAIT_DISABLE;
psramHandle.Init.WriteBurst = FSMC_WRITE_BURST_DISABLE;
psramHandle.Init.ContinuousClock = FSMC_CONTINUOUS_CLOCK_SYNC_ONLY;
if(HAL_SRAM_Init(&psramHandle, &Timing, &Timing) != HAL_OK)
{
Error_Handler();
}if (HAL_SRAM_Init(&psramHandle, &Timing, &Timing) != HAL_OK) { ... }
}{ ... }
/* ... */
static void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
HAL_StatusTypeDef ret = HAL_OK;
__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 = 200;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
RCC_OscInitStruct.PLL.PLLR = 2;
ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
if(ret != HAL_OK)
{
Error_Handler();
}if (ret != 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;
ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3);
if(ret != HAL_OK)
{
Error_Handler();
}if (ret != HAL_OK) { ... }
}{ ... }
/* ... */
static void Error_Handler(void)
{
BSP_LED_On(LED4);
while (1)
{
}while (1) { ... }
}{ ... }
/* ... */
static void Fill_Buffer(uint16_t *pBuffer, uint32_t uwBufferLength, uint32_t uwOffset)
{
uint32_t tmpindex = 0;
for (tmpindex = 0; tmpindex < uwBufferLength; tmpindex++ )
{
pBuffer[tmpindex] = tmpindex + uwOffset;
}for (tmpindex = 0; tmpindex < uwBufferLength; tmpindex++) { ... }
}{ ... }
/* ... */
static uint8_t Buffercmp(uint16_t* pBuffer1, uint16_t* pBuffer2, uint16_t BufferLength)
{
while (BufferLength--)
{
if (*pBuffer1 != *pBuffer2)
{
return 1;
}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
/* ... */
/* ... */