Some old AVR projects
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64 lines
1016 B

#include <avr/pgmspace.h>
#include <util/delay.h>
#include "lib/uart.h"
#include "lib/stream.h"
#include "lib/sd.h"
void main()
{
uart_init(9600);
uart_puts_P(PSTR("*** SD CARD SPI TEST ***\r\n"));
if (!sd_init())
{
put_str_P(uart, PSTR("Failed to init."));
while (1);
}
uint8_t text[512];
put_str_P(uart, PSTR("\r\nReading...\r\n"));
if (sd_read(0, 0, text, 0, 512))
{
put_bytes(uart, text, 512);
put_nl(uart);
put_nl(uart);
for (uint8_t i = 0; i < 60; i++)
{
text[i] = ('A' + i);
}
put_str_P(uart, PSTR("\r\nWriting...\r\n"));
sd_write(1, text);
put_str_P(uart, PSTR("\r\nWrite done.\r\n"));
for (uint16_t i = 0; i < 512; i++)
{
text[i] = 0;
}
if (sd_read(1, 0, text, 0, 512))
{
put_str_P(uart, PSTR("\r\nWritten, result: \r\n"));
put_bytes(uart, text, 512);
put_nl(uart);
put_nl(uart);
}
else
{
put_str_P(uart, PSTR("\r\nRead failed.\r\n"));
}
}
else
{
put_str_P(uart, PSTR("Failed to read."));
while (1);
}
while (1);
}