// Verify contents of SPI flash
void
verify_spi(int core, char slave_sel, char * data, unsigned int length)
{
unsigned int i;
unsigned int page_num = 0;
unsigned int bytes_this_page;
char verify_buf[256];
int verify_error = 0;
printf("* Verifying contents of SPI flash.\n");
while(length)
{
bytes_this_page = (length >= 256) ? 256 : length;
spi_read_block(spi_master, slave, (page_num<<8), bytes_this_page,
verify_buf);
for(i=0;i<bytes_this_page;i++)
{
if (verify_buf[i] != data[i])
{
printf("* Verify error! Byte %d of page %d - was 0x%x, expected 0x%x\n", i, page_num, verify_buf[i] & 0xff, data[i] & 0xff);
verify_error=1;
}
}
data +=256;
length -= (length >= 256) ? 256 : length;
page_num++;
}
if (verify_error)
printf("* SPI flash verify NOT OK\n");
else
printf("* SPI flash verify OK\n");
}
int
main()
{
uart_init(0); // init the UART before we can printf
volatile char c;
int i,j;
char browse_buf[256];
spi_master = 0;
slave = 1;
spi_core_slave_select(spi_master, 0); // Deselect slaves
// Clear the read FIFO
while (spi_core_data_avail(spi_master))
c = spi_core_read_data(spi_master);
programming_file_start = (unsigned long) &spiprogram_data;
programming_file_end = (unsigned long) &end_spiprogram_data;
programming_file_length = programming_file_end - programming_file_start;
// SPI core 0, should already be configured to read out data
// when we reset.
printf("\n\n\tSPI flash programming app\n\n");
while(1){
printf("[p,v,s,h] > ");
c = uart_getc(DEFAULT_UART);
printf("%c",c);
printf("\n");
if (c == 'h')
printhelp();
else if (c == 's')
print_spi_status();
else if (c == 'p')
program_spi(spi_master, slave, (char *) &spiprogram_data, programming_file_length);
else if (c == 'v')
verify_spi(spi_master, slave, (char *) &spiprogram_data, programming_file_length);
else if ( c== 'r')
{
printf("Read page\n");
spi_read_block(spi_master, slave, ((console_get_num())<<8),
256,
browse_buf);
console_browse_buffer(browse_buf);
}
}
return 0;
}
void handle_read_block() {
uint16_t i;
int16_t in_data;
for (i = 0; i < BUF_SIZE_ADDR; i++) {
if ((in_data = usb_serial_getchar()) != -1)
buf_addr[i] = in_data;
else
break;
}
if (i < BUF_SIZE_ADDR) { // timeout
usb_serial_putchar('R');
return; // and exit
}
usb_serial_putchar('K');
spi_read_block();
}
