STM32F0xx Standard Peripherals Firmware Library: main.c Source File

00001 /**
00002   ******************************************************************************
00003   * @file    SPI/SPI_MSD/main.c 
00004   * @author  MCD Application Team
00005   * @version V1.4.0
00006   * @date    24-July-2014
00007   * @brief   Main program body
00008   ******************************************************************************
00009   * @attention
00010   *
00011   * <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
00012   *
00013   * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
00014   * You may not use this file except in compliance with the License.
00015   * You may obtain a copy of the License at:
00016   *
00017   *        http://www.st.com/software_license_agreement_liberty_v2
00018   *
00019   * Unless required by applicable law or agreed to in writing, software 
00020   * distributed under the License is distributed on an "AS IS" BASIS, 
00021   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00022   * See the License for the specific language governing permissions and
00023   * limitations under the License.
00024   *
00025   ******************************************************************************
00026   */
00027 
00028 
00029 /* Includes ------------------------------------------------------------------*/
00030 #include "main.h"
00031 
00032 /** @addtogroup STM32F0xx_StdPeriph_Examples
00033   * @{
00034   */
00035 
00036 /** @addtogroup SPI_MSD
00037   * @{
00038   */
00039 
00040 /* Private typedef -----------------------------------------------------------*/
00041 /* Private define ------------------------------------------------------------*/
00042 /* Private macro -------------------------------------------------------------*/
00043 /* Private variables ---------------------------------------------------------*/
00044 uint8_t Buffer_Block_Tx[BUFFERSIZE], Buffer_Block_Rx[BUFFERSIZE];
00045 TestStatus TransferStatus = FAILED;
00046 uint16_t Status = 0;
00047 
00048 /* Private function prototypes -----------------------------------------------*/
00049 static void Fill_Buffer(uint8_t *pBuffer, uint16_t BufferLenght, uint8_t Offset);
00050 static TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength);
00051 
00052 /* Private functions ---------------------------------------------------------*/
00053 
00054 /**
00055   * @brief  Main program.
00056   * @param  None
00057   * @retval None
00058   */
00059 int main(void)
00060 {
00061   /*!< At this stage the microcontroller clock setting is already configured, 
00062   this is done through SystemInit() function which is called from startup
00063   file (startup_stm32f0xx.s) before to branch to application main.
00064   To reconfigure the default setting of SystemInit() function, refer to
00065   system_stm32f0xx.c file
00066   */
00067   
00068   /* Initialize Leds mounted on STM320518-EVAL board */
00069   STM_EVAL_LEDInit(LED1);
00070   STM_EVAL_LEDInit(LED2);
00071   
00072   /* Initializes the SD/SPI communication */
00073   Status = SD_Init();   
00074   
00075   /* If SD is responding */
00076   if (Status == SD_RESPONSE_NO_ERROR)
00077   {
00078     /* Fill the buffer to send */
00079     Fill_Buffer(Buffer_Block_Tx, BUFFERSIZE, 0x0);
00080     
00081     /* Write block of 512 bytes on address 0 */
00082     Status = SD_WriteBlock(Buffer_Block_Tx, 0, BUFFERSIZE);
00083     
00084     /* Read block of 512 bytes from address 0 */
00085     Status = SD_ReadBlock(Buffer_Block_Rx, 0, BUFFERSIZE);
00086     
00087     /* Check the corectness of written dada */
00088     TransferStatus = Buffercmp(Buffer_Block_Tx, Buffer_Block_Rx, BUFFERSIZE);
00089     
00090     if (TransferStatus == PASSED)
00091     {
00092       /* OK: Turn on LD1 */
00093       STM_EVAL_LEDOn(LED1);
00094     }
00095     else
00096     {
00097       /* Error: Turn on LD2 */
00098       STM_EVAL_LEDOn(LED2);
00099     }
00100   }
00101   else
00102   {
00103     /* Error: Turn on LD2 */
00104     STM_EVAL_LEDOn(LED2);
00105   }
00106   
00107   while (1)
00108   {
00109   }
00110   
00111 }
00112 
00113 /**
00114   * @brief  Fill the gloal buffer.
00115   * @param  pBuffer: pointer on the Buffer to fill
00116   * @param  BufferLenght: length of the buffer to fill
00117   * @param  Offset: first value to fill on the Buffer
00118   * @retval None.
00119   */
00120 static void Fill_Buffer(uint8_t *pBuffer, uint16_t BufferLenght, uint8_t Offset)
00121 {
00122   uint16_t IndexTmp;
00123   
00124   /* Put in global buffer same values */
00125   for( IndexTmp = 0; IndexTmp < BufferLenght; IndexTmp++ )
00126   {
00127     pBuffer[IndexTmp] =IndexTmp + Offset;
00128   }
00129 }
00130 
00131 /**
00132   * @brief  Compares two buffers.
00133   * @param  pBuffer1, pBuffer2: buffers to be compared.
00134   * @param  BufferLength: buffer's length
00135   * @retval PASSED: pBuffer1 identical to pBuffer2
00136   *         FAILED: pBuffer1 differs from pBuffer2
00137   */
00138 static TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength)
00139 {
00140   while (BufferLength--)
00141   {
00142     if (*pBuffer1 != *pBuffer2)
00143     {
00144       return FAILED;
00145     }
00146 
00147     pBuffer1++;
00148     pBuffer2++;
00149   }
00150 
00151   return PASSED;
00152 }
00153 
00154 
00155 #ifdef  USE_FULL_ASSERT
00156 
00157 /**
00158   * @brief  Reports the name of the source file and the source line number
00159   *         where the assert_param error has occurred.
00160   * @param  file: pointer to the source file name
00161   * @param  line: assert_param error line source number
00162   * @retval None
00163   */
00164 void assert_failed(uint8_t* file, uint32_t line)
00165 { 
00166   /* User can add his own implementation to report the file name and line number,
00167      ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
00168 
00169   /* Infinite loop */
00170   while (1)
00171   {
00172   }
00173 }
00174 #endif
00175 
00176 /**
00177   * @}
00178   */
00179 
00180 /**
00181   * @}
00182   */
00183 
00184 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/