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new include file sd_card.h

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This commit is contained in:
Markus Fröschle
2012-11-19 06:37:17 +00:00
parent 8edac06f30
commit b3b93a8041
2 changed files with 33 additions and 9 deletions
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32
include/sd_card.h Normal file
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@@ -0,0 +1,32 @@
/*
* sd_card.h
*
* Exported sd-card access routines for the FireBee BaS
*
* Created on: 19.11.2012
* Author: mfro
*/
#ifndef SD_CARD_H_
#define SD_CARD_H_
#include <MCF5475.h>
/*
* "standard value" for DSPI module configuration register MCF_DSPC_DMCR
*/
const uint32_t DSPI_DMCR_CONF = MCF_DSPI_DMCR_MSTR | /* FireBee is DSPI master*/ /* 8 bit CS5 on */
MCF_DSPI_DMCR_CSIS3 | /* CS3 inactive */
MCF_DSPI_DMCR_CSIS2 | /* CS2 inactive */
MCF_DSPI_DMCR_DTXF | /* disable transmit FIFO */
MCF_DSPI_DMCR_DRXF | /* disable receive FIFO */
MCF_DSPI_DMCR_CTXF | /* clear transmit FIFO */
MCF_DSPI_DMCR_CRXF; /* clear receive FIFO */
/* 0x800d3c00 */
extern int sd_card_init(void);
extern uint32_t sd_com(uint32_t data);
extern void sd_card_idle(void);
#endif /* SD_CARD_H_ */

10
sources/sd_card.c
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@@ -5,6 +5,7 @@
#include <stdint.h>
#include <MCF5475.h>
#include "bas_printf.h"
#include "sd_card.h"
extern void wait(volatile uint32_t value);
@@ -62,15 +63,6 @@ uint32_t sd_com(uint32_t data)
void sd_card_init(void)
{
uint32_t ret;
const uint32_t DSPI_DMCR_CONF = MCF_DSPI_DMCR_MSTR | /* FireBee is DSPI master*/ /* 8 bit CS5 on */
MCF_DSPI_DMCR_CSIS3 | /* CS3 inactive */
MCF_DSPI_DMCR_CSIS2 | /* CS2 inactive */
MCF_DSPI_DMCR_DTXF | /* disable transmit FIFO */
MCF_DSPI_DMCR_DRXF | /* disable receive FIFO */
MCF_DSPI_DMCR_CTXF | /* clear transmit FIFO */
MCF_DSPI_DMCR_CRXF; /* clear receive FIFO */
/* 0x800d3c00 */
int i;
xprintf("SD-Card initialization: ");