/*
* LPLD_Disk_Read
* 读磁盘的一个或多个扇区
*
* 参数:
* drv--物理磁盘号，只能为0
* buff--数据读出所存的地址指针
* sector--扇区起始号
* count--所读的扇区数
*
* 输出:
* RES_OK--成功
* RES_ERROR--读/写错误
* RES_WRPRT--写保护
* RES_NOTRDY--未准备好
* RES_PARERR--参数错误
* RES_NONRSPNS--未响应
*/
DRESULT LPLD_Disk_Read(uint8 drv, uint8* buff, uint32 sector, uint8 count)
{
if(drv || (count == 0))
return RES_PARERR;
return LPLD_SDHC_ReadBlocks(buff, sector, count);
}
void main (void)
{
uint32 i;
//读写数据数组
uint8 sdhc_dat_buffer1[BUFFER_SIZE];
//SD卡操作返回值
SDHCRES sd_state;
//关中断
DisableInterrupts;
//SDHC初始化
sd_state = (SDHCRES)LPLD_SDHC_InitCard();
//开中断
EnableInterrupts;
//判断SD卡操作状态
if (SDHCRES_OK == sd_state)
{
printf("\r\nSD init success.\r\n");
//读(多)扇区操作，并返回SD操作状态
sd_state = LPLD_SDHC_ReadBlocks(sdhc_dat_buffer1, 0, BLOCK_LEN);
}
else
{
printf("\r\nSD init failure.\r\n");
}
//判断SD卡操作状态
if (SDHCRES_OK == sd_state)
{
printf("Read disk success.\r\n");
printf("SD data: \r\n");
//若读成功，打印该扇区内容
for(i = 0;i < BUFFER_SIZE;i++)
{
printf("%02X ", sdhc_dat_buffer1[i]);
}
printf("\r\n");
}
else
{
printf("Read disk failed.\n\r");
}
//判断SD卡操作状态
if (SDHCRES_OK == sd_state)
{
printf("Update data success.\r\n");
//更新数据数组，自加1
for (i = 0; i < BUFFER_SIZE; i++)
{
sdhc_dat_buffer1[i] ++;
}
//写(多)扇区操作，并返回SD操作状态
sd_state = LPLD_SDHC_WriteBlocks(sdhc_dat_buffer1, 0, BLOCK_LEN);
}
//判断SD卡操作状态
if (SDHCRES_OK == sd_state)
{
printf("Write Disk success.\r\n");
//再次读(多)扇区操作，并返回SD操作状态
sd_state = LPLD_SDHC_ReadBlocks(sdhc_dat_buffer1, 0, BLOCK_LEN);
}
else
{
printf("Write Disk failure.\r\n");
}
//判断SD卡操作状态
if (SDHCRES_OK == sd_state)
{
printf("Read disk success.\r\n");
printf("SD data: \r\n");
//若读成功，打印该扇区内容
for(i = 0;i < BUFFER_SIZE;i++)
{
printf("%02X ", sdhc_dat_buffer1[i]);
}
printf("\r\n");
}
else
{
printf("Read disk failure.\r\n");
}
while(1)
{
}
}