File size: 4,702 Bytes
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******************************************************************************
* @file FSMC/SRAM/main.c
* @author MCD Application Team
* @version V1.1.1
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32l152d_eval_fsmc_sram.h"
#include "stm32l152d_eval.h"
/** @addtogroup STM32L1xx_StdPeriph_Examples
* @{
*/
/** @addtogroup FSMC_SRAM
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define BUFFER_SIZE 0x400
#define WRITE_READ_ADDR 0x8000
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
uint16_t TxBuffer[BUFFER_SIZE];
uint16_t RxBuffer[BUFFER_SIZE];
uint32_t WriteReadStatus = 0, Index = 0;
/* Private function prototypes -----------------------------------------------*/
void Fill_Buffer(uint16_t *pBuffer, uint16_t BufferLenght, uint32_t Offset);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32l1xx_xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32l1xx.c file
*/
/* Initialize Leds mounted on STM32LXX-EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
/* Write/read to/from FSMC SRAM memory *************************************/
/* Enable the FSMC Clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);
/* Configure FSMC Bank1 NOR/SRAM3 */
SRAM_Init();
/* Write data to FSMC SRAM memory */
/* Fill the buffer to send */
Fill_Buffer(TxBuffer, BUFFER_SIZE, 0x3212);
SRAM_WriteBuffer(TxBuffer, WRITE_READ_ADDR, BUFFER_SIZE);
/* Read data from FSMC SRAM memory */
SRAM_ReadBuffer(RxBuffer, WRITE_READ_ADDR, BUFFER_SIZE);
/* Read back SRAM memory and check content correctness */
for (Index = 0x00; (Index < BUFFER_SIZE) && (WriteReadStatus == 0); Index++)
{
if (RxBuffer[Index] != TxBuffer[Index])
{
WriteReadStatus = Index + 1;
}
}
if (WriteReadStatus == 0)
{
/* OK */
/* Turn on LED1 */
STM_EVAL_LEDOn(LED1);
}
else
{
/* KO */
/* Turn on LED2 */
STM_EVAL_LEDOn(LED2);
}
while (1)
{
}
}
/**
* @brief Fill the global buffer
* @param pBuffer: pointer on the Buffer to fill
* @param BufferSize: size of the buffer to fill
* @param Offset: first value to fill on the Buffer
*/
void Fill_Buffer(uint16_t *pBuffer, uint16_t BufferLenght, uint32_t Offset)
{
uint16_t IndexTmp = 0;
/* Put in global buffer same values */
for (IndexTmp = 0; IndexTmp < BufferLenght; IndexTmp++ )
{
pBuffer[IndexTmp] = IndexTmp + Offset;
}
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* 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) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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