Diff: sdcard.h

Revision:

0:76d6402d766d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sdcard.h	Tue Mar 19 14:47:28 2019 +0000
@@ -0,0 +1,36 @@
+/* vim: set ai et ts=4 sw=4: */
+#ifndef __SDCARD_H__
+#define __SDCARD_H__
+
+#include "stm32f4xx_hal.h"
+
+#define SDCARD_SPI_PORT      hspi1
+#define SDCARD_CS_Pin        GPIO_PIN_3 // Arduino shield: D3
+#define SDCARD_CS_GPIO_Port  GPIOB
+
+extern SPI_HandleTypeDef SDCARD_SPI_PORT;
+
+// call before initializing any SPI devices
+void SDCARD_Unselect();
+
+// all procedures return 0 on success, < 0 on failure
+
+extern int SDCARD_Init(void);
+int SDCARD_GetBlocksNumber(uint32_t* num);
+int SDCARD_ReadSingleBlock(uint32_t blockNum, uint8_t* buff); // sizeof(buff) == 512!
+int SDCARD_WriteSingleBlock(uint32_t blockNum, const uint8_t* buff); // sizeof(buff) == 512!
+
+// Read Multiple Blocks
+int SDCARD_ReadBegin(uint32_t blockNum);
+int SDCARD_ReadData(uint8_t* buff); // sizeof(buff) == 512!
+int SDCARD_ReadEnd();
+
+// Write Multiple Blocks
+int SDCARD_WriteBegin(uint32_t blockNum);
+int SDCARD_WriteData(const uint8_t* buff); // sizeof(buff) == 512!
+int SDCARD_WriteEnd();
+
+// TODO: read lock flag? CMD13, SEND_STATUS
+
+#endif // __SDCARD_H__
+