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Diffstat (limited to 'src/stm32lib/examples/SDIO/main.c')
-rwxr-xr-x | src/stm32lib/examples/SDIO/main.c | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/src/stm32lib/examples/SDIO/main.c b/src/stm32lib/examples/SDIO/main.c new file mode 100755 index 0000000..73259d0 --- /dev/null +++ b/src/stm32lib/examples/SDIO/main.c @@ -0,0 +1,329 @@ +/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
+* File Name : main.c
+* Author : MCD Application Team
+* Version : V2.0.1
+* Date : 06/13/2008
+* Description : Main program body
+********************************************************************************
+* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
+* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
+* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
+* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
+* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+*******************************************************************************/
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f10x_lib.h"
+#include "sdcard.h"
+
+/* Private typedef -----------------------------------------------------------*/
+typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus;
+
+/* Private define ------------------------------------------------------------*/
+#define BlockSize 512 /* Block Size in Bytes */
+#define BufferWordsSize (BlockSize >> 2)
+
+#define NumberOfBlocks 2 /* For Multi Blocks operation (Read/Write) */
+#define MultiBufferWordsSize ((BlockSize * NumberOfBlocks) >> 2)
+
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+SD_CardInfo SDCardInfo;
+u32 Buffer_Block_Tx[BufferWordsSize], Buffer_Block_Rx[BufferWordsSize];
+u32 Buffer_MultiBlock_Tx[MultiBufferWordsSize], Buffer_MultiBlock_Rx[MultiBufferWordsSize];
+volatile TestStatus EraseStatus = FAILED, TransferStatus1 = FAILED, TransferStatus2 = FAILED;
+SD_Error Status = SD_OK;
+ErrorStatus HSEStartUpStatus;
+
+/* Private function prototypes -----------------------------------------------*/
+void RCC_Configuration(void);
+void NVIC_Configuration(void);
+void Fill_Buffer(u32 *pBuffer, u16 BufferLenght, u32 Offset);
+TestStatus Buffercmp(u32* pBuffer1, u32* pBuffer2, u16 BufferLength);
+TestStatus eBuffercmp(u32* pBuffer, u16 BufferLength);
+
+/* Private functions ---------------------------------------------------------*/
+
+/*******************************************************************************
+* Function Name : main
+* Description : Main program.
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+int main(void)
+{
+#ifdef DEBUG
+ debug();
+#endif
+
+ /* Clock Config */
+ RCC_Configuration();
+
+ /* Interrupt Config */
+ NVIC_Configuration();
+
+ /*-------------------------- SD Init ----------------------------- */
+ Status = SD_Init();
+
+ if (Status == SD_OK)
+ {
+ /*----------------- Read CSD/CID MSD registers ------------------*/
+ Status = SD_GetCardInfo(&SDCardInfo);
+ }
+
+ if (Status == SD_OK)
+ {
+ /*----------------- Select Card --------------------------------*/
+ Status = SD_SelectDeselect((u32) (SDCardInfo.RCA << 16));
+ }
+
+ if (Status == SD_OK)
+ {
+ Status = SD_EnableWideBusOperation(SDIO_BusWide_4b);
+ }
+
+ /*------------------- Block Erase -------------------------------*/
+ if (Status == SD_OK)
+ {
+ /* Erase NumberOfBlocks Blocks of WRITE_BL_LEN(512 Bytes) */
+ Status = SD_Erase(0x00, (BlockSize * NumberOfBlocks));
+ }
+
+ /* Set Device Transfer Mode to DMA */
+ if (Status == SD_OK)
+ {
+ Status = SD_SetDeviceMode(SD_DMA_MODE);
+ }
+
+ if (Status == SD_OK)
+ {
+ Status = SD_ReadMultiBlocks(0x00, Buffer_MultiBlock_Rx, BlockSize, NumberOfBlocks);
+ }
+
+ if (Status == SD_OK)
+ {
+ EraseStatus = eBuffercmp(Buffer_MultiBlock_Rx, MultiBufferWordsSize);
+ }
+
+ /*------------------- Block Read/Write --------------------------*/
+ /* Fill the buffer to send */
+ Fill_Buffer(Buffer_Block_Tx, BufferWordsSize, 0xFFFF);
+
+
+ if (Status == SD_OK)
+ {
+ /* Write block of 512 bytes on address 0 */
+ Status = SD_WriteBlock(0x00, Buffer_Block_Tx, BlockSize);
+ }
+
+ if (Status == SD_OK)
+ {
+ /* Read block of 512 bytes from address 0 */
+ Status = SD_ReadBlock(0x00, Buffer_Block_Rx, BlockSize);
+ }
+
+ if (Status == SD_OK)
+ {
+ /* Check the corectness of written dada */
+ TransferStatus1 = Buffercmp(Buffer_Block_Tx, Buffer_Block_Rx, BufferWordsSize);
+ }
+
+ /*--------------- Multiple Block Read/Write ---------------------*/
+ /* Fill the buffer to send */
+ Fill_Buffer(Buffer_MultiBlock_Tx, MultiBufferWordsSize, 0x0);
+
+ if (Status == SD_OK)
+ {
+ /* Write multiple block of many bytes on address 0 */
+ Status = SD_WriteMultiBlocks(0x00, Buffer_MultiBlock_Tx, BlockSize, NumberOfBlocks);
+ }
+
+ if (Status == SD_OK)
+ {
+ /* Read block of many bytes from address 0 */
+ Status = SD_ReadMultiBlocks(0x00, Buffer_MultiBlock_Rx, BlockSize, NumberOfBlocks);
+ }
+
+ if (Status == SD_OK)
+ {
+ /* Check the corectness of written dada */
+ TransferStatus2 = Buffercmp(Buffer_MultiBlock_Tx, Buffer_MultiBlock_Rx, MultiBufferWordsSize);
+ }
+
+ /* Infinite loop */
+ while (1)
+ {}
+}
+
+/*******************************************************************************
+* Function Name : RCC_Configuration
+* Description : Configures the different system clocks.
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void RCC_Configuration(void)
+{
+ /* RCC system reset(for debug purpose) */
+ RCC_DeInit();
+
+ /* Enable HSE */
+ RCC_HSEConfig(RCC_HSE_ON);
+
+ /* Wait till HSE is ready */
+ HSEStartUpStatus = RCC_WaitForHSEStartUp();
+
+ if(HSEStartUpStatus == SUCCESS)
+ {
+ /* Enable Prefetch Buffer */
+ FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
+
+ /* Flash 2 wait state */
+ FLASH_SetLatency(FLASH_Latency_2);
+
+ /* HCLK = SYSCLK */
+ RCC_HCLKConfig(RCC_SYSCLK_Div1);
+
+ /* PCLK2 = HCLK */
+ RCC_PCLK2Config(RCC_HCLK_Div1);
+
+ /* PCLK1 = HCLK/2 */
+ RCC_PCLK1Config(RCC_HCLK_Div2);
+
+ /* PLLCLK = 8MHz * 9 = 72 MHz */
+ RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
+
+ /* Enable PLL */
+ RCC_PLLCmd(ENABLE);
+
+ /* Wait till PLL is ready */
+ while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
+ {
+ }
+
+ /* Select PLL as system clock source */
+ RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
+
+ /* Wait till PLL is used as system clock source */
+ while(RCC_GetSYSCLKSource() != 0x08)
+ {
+ }
+ }
+}
+
+/*******************************************************************************
+* Function Name : NVIC_Config
+* Description : Configures SDIO IRQ channel.
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void NVIC_Configuration(void)
+{
+ NVIC_InitTypeDef NVIC_InitStructure;
+
+ /* Configure the NVIC Preemption Priority Bits */
+ NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
+
+ NVIC_InitStructure.NVIC_IRQChannel = SDIO_IRQChannel;
+ NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
+ NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
+ NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+ NVIC_Init(&NVIC_InitStructure);
+}
+
+/*******************************************************************************
+* Function Name : Buffercmp
+* Description : Compares two buffers.
+* Input : - pBuffer1, pBuffer2: buffers to be compared.
+* : - BufferLength: buffer's length
+* Output : None
+* Return : PASSED: pBuffer1 identical to pBuffer2
+* FAILED: pBuffer1 differs from pBuffer2
+*******************************************************************************/
+TestStatus Buffercmp(u32* pBuffer1, u32* pBuffer2, u16 BufferLength)
+{
+ while (BufferLength--)
+ {
+ if (*pBuffer1 != *pBuffer2)
+ {
+ return FAILED;
+ }
+
+ pBuffer1++;
+ pBuffer2++;
+ }
+
+ return PASSED;
+}
+
+/*******************************************************************************
+* Function name : Fill_Buffer
+* Description : Fills buffer with user predefined data.
+* Input : - pBuffer: pointer on the Buffer to fill
+* - BufferLenght: size of the buffer to fill
+* - Offset: first value to fill on the Buffer
+* Output : None
+* Return : None
+*******************************************************************************/
+void Fill_Buffer(u32 *pBuffer, u16 BufferLenght, u32 Offset)
+{
+ u16 index = 0;
+
+ /* Put in global buffer same values */
+ for (index = 0; index < BufferLenght; index++ )
+ {
+ pBuffer[index] = index + Offset;
+ }
+}
+
+/*******************************************************************************
+* Function name : eBuffercmp
+* Description : Checks if a buffer has all its values are equal to zero.
+* Input : - pBuffer: buffer to be compared.
+* : - BufferLength: buffer's length
+* Output : None
+* Return : PASSED: pBuffer values are zero
+* FAILED: At least one value from pBuffer buffer is diffrent
+* from zero.
+*******************************************************************************/
+TestStatus eBuffercmp(u32* pBuffer, u16 BufferLength)
+{
+ while (BufferLength--)
+ {
+ if (*pBuffer != 0x00)
+ {
+ return FAILED;
+ }
+
+ pBuffer++;
+ }
+
+ return PASSED;
+}
+
+#ifdef DEBUG
+/*******************************************************************************
+* Function Name : assert_failed
+* Description : Reports the name of the source file and the source line number
+* where the assert_param error has occurred.
+* Input : - file: pointer to the source file name
+* - line: assert_param error line source number
+* Output : None
+* Return : None
+*******************************************************************************/
+void assert_failed(u8* file, u32 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 2008 STMicroelectronics *****END OF FILE****/
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