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Add testing function for reading sd blocks

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Add a simple function which reads a 512 block from the SD card and then
prints it to the console.
This commit is contained in:
Byron Lathi
2022-04-14 11:23:44 -05:00
parent ee95a592cd
commit d140928148
1 changed files with 26 additions and 12 deletions
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38
sw/main.c
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@@ -6,6 +6,28 @@
#include "mapper.h"
#include "sd_card.h"
uint8_t buf[512];
void sd_readblock(uint8_t addr) {
uint32_t resp;
int i;
sd_card_command(addr, 17);
sd_card_resp(&resp);
cprintf("CMD17: %lx\n", resp);
sd_card_wait_for_data();
cprintf("Read data: \n");
for (i = 0; i < 512; i++){
buf[i] = sd_card_read_byte();
}
for (i = 0; i < 512; i++){
cprintf("%c", buf[i]);
}
}
int main() {
int i;
uint8_t sw;
@@ -83,20 +105,12 @@ int main() {
sd_card_resp(&resp);
cprintf("CMD13: %lx\n", resp);
sd_card_command(0, 17);
sd_card_resp(&resp);
cprintf("CMD17: %lx\n", resp);
sd_readblock(0);
sd_readblock(1);
sd_readblock(2);
sd_readblock(3);
while(sw_read());
sd_card_wait_for_data();
cprintf("Read data: \n");
for (i = 0; i < 512; i++){
cprintf("%c", sd_card_read_byte());
}
while (1) {
sw = sw_read();