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add sd_erase in sd_sim.c, just erase MBR in SDCARD

This commit is contained in:
prife 2013-01-22 23:48:52 +08:00
parent a4d661dcf1
commit f5fea40c5e
1 changed files with 19 additions and 3 deletions
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22
bsp/simulator/drivers/sd_sim.c
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@ -185,9 +185,25 @@ rt_err_t rt_hw_sdcard_init(const char *spi_device_name)
#ifdef RT_USING_FINSH
#include <finsh.h>
void eraseall(void)
int sd_erase(void)
{
printf("had not implemented yet!\n");
rt_uint32_t index;
char * buffer;
struct rt_device *device;
device = &_sdcard.parent;
if ((buffer = rt_malloc(SECTOR_SIZE)) == RT_NULL)
{
rt_kprintf("out of memory\n");
return -1;
}
memset(buffer, 0, SECTOR_SIZE);
/* just erase the MBR! */
for (index = 0; index < 2; index ++)
{
rt_sdcard_write(device, index, buffer, SECTOR_SIZE);
}
return 0;
}
FINSH_FUNCTION_EXPORT(eraseall, erase all block in SPI flash);
FINSH_FUNCTION_EXPORT(sd_erase, erase all block in SPI flash);
#endif