9eaa6c49f9
Polls the sd controller until the read flag is set, at which point it reads 32 bits of data from the controller. long response codes (such as CID) are not supported in hw or sw.
105 lines
2.1 KiB
C
105 lines
2.1 KiB
C
#include <stdint.h>
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#include <conio.h>
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#include "board_io.h"
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#include "uart.h"
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#include "mapper.h"
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#include "sd_card.h"
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int main() {
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int i;
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uint8_t sw;
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uint32_t resp;
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char s[16];
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s[15] = 0;
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clrscr();
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cprintf("Hello, world!\n");
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for (i = 0; i < 16; i++){
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cprintf("Mapping %1xxxx to %2xxxx\n", i, i);
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mapper_write(i, i);
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}
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cprintf("Enabling Mapper\n");
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mapper_enable(1);
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cprintf("Writing 0xcccc to 0x4000\n");
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*(unsigned int*)(0x4000) = 0xcccc;
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cprintf("Writing 0xdddd to 0x5000\n");
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*(unsigned int*)(0x5000) = 0xdddd;
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cprintf("Mapping %1xxxx to %2xxxx\n", 4, 16);
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mapper_write(16, 4);
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cprintf("Mapping %1xxxx to %2xxxx\n", 5, 16);
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mapper_write(16, 5);
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cprintf("Writing 0xa5a5 to 0x4000\n");
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*(unsigned int*)(0x4000) = 0xa5a5;
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cprintf("Reading from 0x5000: %x\n", *(unsigned int*)(0x5000));
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cprintf("Resetting map\n");
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mapper_write(4, 4);
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mapper_write(5, 5);
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cprintf("Reading from 0x4000: %x\n", *(unsigned int*)(0x4000));
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cprintf("Reading from 0x5000: %x\n", *(unsigned int*)(0x5000));
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// This will read a 512 block from the sd card.
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// The RCA is hard coded for the one that I have on hand as responses
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// are not implemented yet.
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sd_card_command(0, 0);
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sd_card_command(0x000001aa, 8);
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sd_card_resp(&resp);
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cprintf("CMD8: %lx\n", resp);
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sd_card_command(0, 55);
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sd_card_command(0x40180000, 41);
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sd_card_resp(&resp);
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cprintf("CMD41: %lx\n", resp);
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sd_card_command(0, 55);
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sd_card_command(0x40180000, 41);
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sd_card_resp(&resp);
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cprintf("CMD41: %lx\n", resp);
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sd_card_command(0, 2);
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sd_card_resp(&resp);
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cprintf("CMD2: %lx\n", resp);
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sd_card_command(0, 3);
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sd_card_resp(&resp);
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cprintf("CMD3: %lx\n", resp);
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sd_card_command(0x59b40000, 7);
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sd_card_resp(&resp);
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cprintf("CMD7: %lx\n", resp);
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sd_card_command(0x59b41000, 13);
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sd_card_resp(&resp);
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cprintf("CMD13: %lx\n", resp);
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sd_card_command(0, 17);
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sd_card_resp(&resp);
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cprintf("CMD17: %lx\n", resp);
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while (1) {
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sw = sw_read();
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led_set(sw);
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cscanf("%15s", s);
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cprintf("\n");
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for (i = 0; i < 16; i++)
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cprintf("s[%d]=%c ", i, s[i]);
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cprintf("\n");
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cprintf("Read string: %s\n", s);
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}
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return 0;
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}
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