void spiFlashTest(void)
{
u32 FlashID = 0;
u8 state[2] = {0};
u8 Rx_Buffer[22];
FlashID = spiFlashReadID();
printf("\r\n 芯片的ID是 0x%X", (int)FlashID);
if (FlashID == 0xEF4015)
{
//擦除0x00扇区
flashEraseSector(FLASH_SECTORTOERASE);
printf("\r\n 写入的数据为: %s", Tx_Buffer);
spiFlashBufferWrite((u8*)Tx_Buffer, FLASH_WRITEADDR, sizeof(Tx_Buffer));
spiFlashBufferRead(Rx_Buffer, FLASH_READADDR, sizeof(Tx_Buffer));
printf("\r\n 读出的数据为: %s", Rx_Buffer);
for (u16 i=0;i< 22;i++)
{
if (*(Tx_Buffer+i)!=*(Rx_Buffer+i))
{
state[0] = 1;
}
}
/* 擦除一个扇区 */
flashEraseSector(FLASH_SECTORTOERASE);
/* 读取扇区数据 */
spiFlashBufferRead(Rx_Buffer, FLASH_READADDR, sizeof(Rx_Buffer));
/* 判断读取数据是否为0xff */
for (u8 Index = 0; Index < 22; Index++)
{
if (Rx_Buffer[Index] != 0xFF)
{
state[1] = 1;
}
}
if(0 == state[1])
{
printf("\r\n 读出数据都为 0xff\n\r");
}
else
{
printf("\r\n 读出数据不都为 0xff\n\r");
}
if(0 == (state[0]+state[1]))
{
printf("\r\n flash测试成功\n\r");
}
else
{
printf("\r\n flash测试失败!\n\r");
}
}
else
{
printf("\r\n FLASH测试失败 \n\r");
}
}
DSTATUS disk_initialize (
BYTE drv /* Physical drive nmuber */
)
{
DSTATUS sta;
uint32_t timeout = 0;
uint32_t id;
//card detect = GPB14
GCR->PB_H_MFP = (GCR->PB_H_MFP & ~PB14_MFP_MASK) | PB14_MFP_GPB14;
GPIOB->PMD = (GPIOB->PMD & ~GPIO_PMD_PMD14_MASK) | GPIO_PMD_PMD14_INPUT;
printf("Check SD Card insert ?\n");
while(GPIOBITB->GP_BIT14 == 1)
{
if(timeout++ > 0x200)
break;
}
bUseSDCard = 0;
if(GPIOBITB->GP_BIT14 != 1)
{
printf("Card Detected!!\n");
//power pin(GPE6)
GCR->PE_L_MFP = (GCR->PE_L_MFP & ~PE6_MFP_MASK) | PE6_MFP_GPE6;
GPIOE->PMD = (GPIOE->PMD & ~GPIO_PMD_PMD6_MASK) | GPIO_PMD_PMD6_OUTPUT;
GPIOBITE->GP_BIT6 = 0;
RoughDelay(100000);
if(SDCARD_Open() == E_SUCCESS)
{
sta = RES_OK;
printf("SDCard Open success\n");
bUseSDCard = 1;
}
else
{
sta = STA_NOINIT;
printf("SDCard Open failed\n");
}
}
else
{
printf("Can't detect card !!\n");
/* Set SPI0 pin, GPE1->SS0; GPE2->CLK, GPE3->MISO0, GPE4->MOSI0 */
GCR->PE_L_MFP = GCR->PE_L_MFP & ~0x000ffff0|0x00066660;
CLK->CLKSEL2 = (CLK->CLKSEL2 & CLK_CLKSEL2_SPI0_MASK) | CLK_CLKSEL2_SPI0_PLL;
//can't find SD card, use SPI flash instead.
spiFlashInit(SPI0);
/* Check Flash ID */
if((id = spiFlashReadID()) == 0)
{
printf("Sorry!! The ID (0x%x)is wrong!!\n", id);
sta = STA_NOINIT;
}
else
sta = RES_OK;
}
return sta;
}
