int shift_run(void *ctx) {
#if 0
unsigned int elapsed_time;
unsigned int current_time = timer_ticks;
if (last_shift_time > current_time) {
//handle clock overflow case
elapsed_time = (65535 - last_shift_time) + current_time;
} else {
elapsed_time = current_time - last_shift_time;
}
if (elapsed_time > (100)) {
last_shift_time += 100;
printf("HC595Write: %02x\n", led_pattern[current_pattern]);
HC595Write(led_pattern[current_pattern]);
current_pattern++;
if (current_pattern >= 8) {
current_pattern = 0;
}
}
#endif
return 0;
}
int main(void){
//Initialize 74HC595
HC595Init();
//Initialize CD4017
CD4017Init();
while(1){
for(uint8_t i = 0; i < 8; i++){
HC595Write(matrix1);
_delay_ms(2000);
CD4017Pulse();
HC595Write(matrix2);
_delay_ms(2000);
CD4017Pulse();
//_delay_ms(2000);
}
}
}
int shift_value(int argc, char* argv[], void *ctx)
{
int i;
uint8_t value = 0;
char *p;
if (argc < 2) {
printf("Usage: shift 01001101\n");
return 0;
}
if (argc == 2) {
p = argv[1];
for (i = 0; i < 8; i++) {
if (*p == '\0') {
printf("Usage: shift 01001101\n");
return 0;
}
if (*p != '1' && *p != '0') {
printf("Usage: shift 01001101\n");
return 0;
}
if (*p == '1') {
value |= (1 << (7-i));
}
p++;
}
} else {
if (strncmp(argv[1], "bit", 3) == 0) {
uint8_t bit = 0;
bit = *argv[2] - '0';
printf("BIT: %d\n", bit);
if (bit < 0 || bit > 8) {
printf("Bit out of range\n");
return 0;
}
if (current_value & (1<<bit)) {
value = current_value & ~(1 << bit);
} else {
value = current_value | (1 << bit);
}
}
}
printf("Shifting %02x into register\n", value);
current_value = value;
HC595Write(value);
return 0;
}
