mhu/stm32f4-sdio
1
0
Fork 0
Code Issues 1 Pull Requests Releases Wiki Activity

removed WAITPEND from CMD init, Module is able to send commands. Ready to test SD Card

Browse Source
This commit is contained in:
Mario Hüttel 2017-04-03 01:35:20 +02:00
parent 00bcf66457
commit b935f93ae1
2 changed files with 23 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
fatfs/shimatta_sdio_driver/shimatta_sdio.c
View File

@ -179,6 +179,8 @@ void SDIO_init_hw(){
CLKPORT->MODER |= (2<<CLKPIN*2);
D0PORT->MODER |= (2<<D0PIN*2);
D0PORT->PUPDR |= (1<<D0PIN*2);
CMDPORT->MODER |= (2<<CMDPIN*2);
CMDPORT->PUPDR |= (1<<CMDPIN*2);
#if BUSWIDTH==4
D1PORT->MODER |= (2<<D1PIN*2);
D1PORT->PUPDR |= (1<<D1PIN*2);
@ -189,6 +191,7 @@ void SDIO_init_hw(){
#endif
//CLKPORT->AFR[(CLKPIN < 8 ? 0 : 1)] |= ALTFUNC << ((CLKPIN < 8 ? CLKPIN : (CLKPIN - 8)) * 4);
SETAF(CLKPORT, CLKPIN, ALTFUNC);
SETAF(CMDPORT, CMDPIN, ALTFUNC);
SETAF(D0PORT, D0PIN, ALTFUNC);
#if BUSWIDTH==4
SETAF(D1PORT, D1PIN, ALTFUNC);
@ -245,12 +248,15 @@ int SDIO_send_cmd(uint8_t CMD, uint32_t arg, uint8_t expectedAns){
SDIO->ICR = SDIO_ICR_CCRCFAILC | SDIO_ICR_CMDRENDC | SDIO_ICR_CTIMEOUTC | SDIO_ICR_CMDSENTC;
//Send command
SDIO->ARG = arg;
SDIO->CMD = (CMD & SDIO_CMD_CMDINDEX) | SDIO_CMD_CPSMEN | SDIO_CMD_WAITPEND | ((expectedAns << 6) & SDIO_CMD_WAITRESP);
SDIO->CMD = (CMD & SDIO_CMD_CMDINDEX) | SDIO_CMD_CPSMEN | /*SDIO_CMD_WAITPEND |*/ ((expectedAns << 6) & SDIO_CMD_WAITRESP);
return 0;
}
unsigned int debug;
void SDIO_wait_cmd_sent() {
while (!(SDIO->STA & SDIO_STA_CMDSENT));
while (!(SDIO->STA & SDIO_STA_CMDSENT))
{
debug = SDIO->STA;
}
SDIO->ICR |= SDIO_ICR_CMDSENTC;
}
@ -361,7 +367,7 @@ int SDIO_send_relative_address_CMD3(uint16_t* rca) {
}
int SDIO_send_go_idle_CMD0() {
SDIO_send_cmd(0, 0, NO_ANS);
SDIO_send_cmd(0, 0x0, NO_ANS);
SDIO_wait_cmd_sent();
return 0;
}

24
main.c
View File

@ -12,28 +12,30 @@
FATFS SDfs;
FIL file;
volatile int w;
void SDIO_wait_cmd_sent();
int SDIO_switch_appmode_CMD55();
int SDIO_send_all_send_cid_CMD2();
int SDIO_send_relative_address_CMD3(uint16_t* rca);
int SDIO_send_go_idle_CMD0();
int SDIO_send_block_length_CMD16(uint32_t blocklen);
int SDIO_send_bus_width_ACMD6(uint8_t bus_width);
void test(char a, char b, char c, char d, char e,char f, char g, char h, char i, char j);
void gna();
int main() {
RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN;
__DSB();
GPIOD->MODER = OUTPUT(12);
GPIOD->MODER |= OUTPUT(12);
SysTick_Config(8*1680000);
f_mount(&SDfs, "0:/", 1);
// f_mount(&SDfs, "0:/", 1);
while(1);
}
void test(char a, char b, char c, char d, char e,char f, char g, char h, char i, char j) {
gna();
//GPIOD->ODR ^= a+b+c+d+e+f+g+h+i+j;
}
void gna() {
GPIOD->ODR = 0;
}
void SysTick_Handler()
{
GPIOD->ODR ^= (1<<12);
w++;
}