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Get SD card working in SPI

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This commit is contained in:
Byron Lathi
2023-07-23 14:55:14 -07:00
parent 6a1a76db35
commit 5ca5fca29b
23 changed files with 1257 additions and 1931 deletions
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77
sw/bootloader/main.c
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@@ -6,6 +6,7 @@
#include "devices/board_io.h"
#include "devices/uart.h"
#include "devices/sd_card.h"
#include "devices/sd_print.h"
#include "filesystem/fat.h"
#define KERNEL_LOAD_ADDR 0xD000
@@ -13,40 +14,68 @@
uint8_t buf[512];
int main() {
uint16_t rca;
clrscr();
cputs("Starting sd_init\n");
cprintf("And testing cprintf\n");
// array to hold responses
uint8_t res[5], token;
uint32_t addr = 0x00000000;
uint16_t i;
sd_init();
cputs("Start\r\n");
cprintf("finish sd_init\n");
// initialize sd card
if(SD_init() != SD_SUCCESS)
{
cputs("Error init SD CARD\r\n");
}
else
{
cputs("SD Card init\r\n");
rca = sd_get_rca();
cprintf("rca: %x\n", rca);
// read sector 0
// cputs("\r\nReading sector: 0x");
// ((uint8_t)(addr >> 24));
// cprintf("%x", (uint8_t)(addr >> 16));
// cprintf("%x", (uint8_t)(addr >> 8));
// cprintf("%x", (uint8_t)addr);
// res[0] = SD_readSingleBlock(addr, buf, &token);
// cputs("\r\nResponse:\r\n");
// //SD_printR1(res[0]);
sd_select_card(rca);
// if no error, print buffer
// if((res[0] == 0x00) && (token == SD_START_TOKEN))
// SD_printBuf(buf);
// else if error token received, print
// else if(!(token & 0xF0))
// {
// cputs("Ercputsror token:\r\n");
// SD_printDataErrToken(token);
// }
/*
fat_init();
// update address to 0x00000100
// addr = 0x00000100;
filename = (char*)malloc(FAT_MAX_FILE_NAME);
// // fill buffer with 0x55
// for(i = 0; i < 512; i++) buf[i] = 0x55;
cluster = fat_parse_path_to_cluster("/kernel.bin");
for (kernel_load = (uint8_t*)KERNEL_LOAD_ADDR; cluster < FAT_CLUSTERMASK; kernel_load+=(8*512)) {
cprintf("cluster: %lx\n", cluster);
cprintf("Writing to %p\n", kernel_load);
fat_read_cluster(cluster, kernel_load);
cluster = fat_get_chain_value(cluster);
}
// cputs("Writing 0x55 to sector: 0x");
// cprintf("%x", (uint8_t)(addr >> 24));
// cprintf("%x", (uint8_t)(addr >> 16));
// cprintf("%x", (uint8_t)(addr >> 8));
// cprintf("%x", (uint8_t)addr);
*/
// // write data to sector
// res[0] = SD_writeSingleBlock(addr, buf, &token);
cprintf("Done!\n");
// cputs("\r\nResponse:\r\n");
// //SD_printR1(res[0]);
for(;;);
// // if no errors writing
// if(res[0] == 0x00)
// {
// if(token == SD_DATA_ACCEPTED)
// cputs("Write successful\r\n");
// }
}
cprintf("Reset vector: %x\n", *((uint16_t*)0xfffc));
while(1) ;
return 0;
}