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#define DNA_DATA 1
#define DNA_CLK 4
#define DNA_SHIFT 3
#define DNA_READ 2
void dna_read(uint32_t *lo, uint32_t *hi)
{
uint64_t dna = 0;
int i;
gpio_out(DNA_DATA, 0);
delay(10);
gpio_out(DNA_CLK, 0);
delay(10);
gpio_out(DNA_READ, 1);
delay(10);
gpio_out(DNA_SHIFT, 0);
delay(10);
delay(10);
gpio_out(DNA_CLK, 1);
delay(10);
if(gpio_in(DNA_DATA)) dna |= 1;
delay(10);
gpio_out(DNA_CLK, 0);
delay(10);
gpio_out(DNA_READ, 0);
gpio_out(DNA_SHIFT, 1);
delay(10);
for(i=0;i<57;i++)
{
dna <<= 1;
delay(10);
delay(10);
gpio_out(DNA_CLK, 1);
delay(10);
if(gpio_in(DNA_DATA)) dna |= 1;
delay(10);
gpio_out(DNA_CLK, 0);
delay(10);
}
*hi = (uint32_t) (dna >> 32);
*lo = (uint32_t) dna;