/**
* The main routine.
*/
int main(void)
{
unsigned char cnt = 0;
unsigned char c;
clock_init();
pin_reserve(PIN_1_1);
pin_reserve(PIN_1_2);
serial_init(BAUDRATE);
setup();
for(;;) {
c = serial_recv_blocking();
if(c == SCRATCH_DATA_REQUEST) {
if(cnt++ == COMM_BLINK_RATE) {
// blink COMM to show data was requested
pin_toggle(COMM);
cnt = 0;
}
read_samples();
xmit_samples();
}
}
return 0;
}
int main(void)
{
clock_init();
pin_reserve(PIN_1_1);
pin_reserve(PIN_1_2);
serial_init(9600);
cio_print("** ROCKETuC - librocketcore PIN test **\n\r");
dump_regs("initial");
// invalid port
if(pin_setup(0x30, PIN_FUNCTION_OUTPUT) == PIN_STAT_ERR_INVALPORT) {
cio_print("0x30 is an invalid port\n\r");
}
// invalid pin
if(pin_setup(0x2A, PIN_FUNCTION_OUTPUT) == PIN_STAT_ERR_INVALPIN) {
cio_print("0x2A is an invalid pin\n\r");
}
// P1.1 + P1.2 are reserved for UART1
if(pin_setup(PIN_1_1, PIN_FUNCTION_OUTPUT) == PIN_STAT_ERR_INVALPIN) {
cio_print("0x11 is an invalid (reserved) pin\n\r");
}
if(pin_setup(PIN_1_2, PIN_FUNCTION_OUTPUT) == PIN_STAT_ERR_INVALPIN) {
cio_print("0x12 is an invalid (reserved) pin\n\r");
}
// pins on port 2 do not support ADC
int p;
for(p = 0; p < 8; p++) {
if(pin_setup(PIN_2_0 + p, PIN_FUNCTION_ANALOG_IN) == PIN_STAT_ERR_UNSUPFUNC) {
cio_printf("0x2%i does not support ADC\n\r", p);
}
}
// set P1.0 + P1.6 + P2.5 to output (the build in LEDs)
pin_setup(PIN_1_0, PIN_FUNCTION_OUTPUT);
pin_setup(PIN_1_6, PIN_FUNCTION_OUTPUT);
pin_setup(PIN_2_5, PIN_FUNCTION_OUTPUT);
dump_regs("p1.0+p1.6+p2.5 output");
// set P1.0 + P1.6 + P2.5 to HIGH
pin_set(PIN_1_0);
pin_set(PIN_1_6);
pin_set(PIN_2_5);
dump_regs("p1.0+p1.6+p2.5 set");
// read P1.0 + P1.6 + p2.5 states
cio_printf("P1.0 is %x\n\r", pin_digital_read(PIN_1_0));
cio_printf("P1.6 is %x\n\r", pin_digital_read(PIN_1_6));
cio_printf("P2.5 is %x\n\r", pin_digital_read(PIN_2_5));
// clear P1.0 + p1.6 + p2.5 to LOW
pin_clear(PIN_1_0);
pin_clear(PIN_1_6);
pin_clear(PIN_2_5);
dump_regs("p1.0+p1.6+p2.5 clear");
// read P1.0 + P1.6 + 2.5 states
cio_printf("P1.0 is %x\n\r", pin_digital_read(PIN_1_0));
cio_printf("P1.6 is %x\n\r", pin_digital_read(PIN_1_6));
cio_printf("P2.5 is %x\n\r", pin_digital_read(PIN_2_5));
// toggle P1.0 + P1.6 + P2.5
pin_toggle(PIN_1_0);
pin_toggle(PIN_1_6);
pin_toggle(PIN_2_5);
dump_regs("p1.0+p1.6+p2.5 toggle");
// read P1.0 + P1.6 states
cio_printf("P1.0 is %x\n\r", pin_digital_read(PIN_1_0));
cio_printf("P1.6 is %x\n\r", pin_digital_read(PIN_1_6));
cio_printf("P2.5 is %x\n\r", pin_digital_read(PIN_2_5));
// toggle P1.0 + P1.6 + P2.5
pin_toggle(PIN_1_0);
pin_toggle(PIN_1_6);
pin_toggle(PIN_2_5);
dump_regs("p1.0+p1.6+p2.5 toggle");
// read P1.0 + P1.6 states
cio_printf("P1.0 is %x\n\r", pin_digital_read(PIN_1_0));
cio_printf("P1.6 is %x\n\r", pin_digital_read(PIN_1_6));
cio_printf("P2.5 is %x\n\r", pin_digital_read(PIN_2_5));
// set P1.3 to input float
pin_setup(PIN_1_3, PIN_FUNCTION_INPUT_FLOAT);
dump_regs("p1.3 input float");
cio_print("Press button on P1.3 to continue ...");
while(pin_digital_read(PIN_1_3)) __asm__("nop");
cio_print(" OK\n\r");
// set P2.3 to input pull-down
pin_setup(PIN_2_3, PIN_FUNCTION_INPUT_PULLDOWN);
dump_regs("p2.3 input pull-down");
cio_print("Press button on P2.3 to continue ...");
while(!pin_digital_read(PIN_2_3)) __asm__("nop");
cio_print(" OK\n\r");
// set P2.4 to input pull-down
pin_setup(PIN_2_4, PIN_FUNCTION_INPUT_PULLUP);
dump_regs("p2.4 input pull-up");
cio_print("Press button on P2.4 to continue ...");
while(pin_digital_read(PIN_2_4)) __asm__("nop");
cio_print(" OK\n\r");
int pl = 0;
cio_print("Press button on P1.3 for pulselength read ...");
delay(50000);
pl = pin_pulselength_read(PIN_1_3);
cio_printf(" OK, pl=%i\n\r", pl);
cio_print("Press button on P2.3 for pulselength read ...");
delay(50000);
pl = pin_pulselength_read(PIN_2_3);
cio_printf(" OK, pl=%i\n\r", pl);
cio_print("Press button on P2.4 for pulselength read ...");
delay(50000);
pl = pin_pulselength_read(PIN_2_4);
cio_printf(" OK, pl=%i\n\r", pl);
pin_set(PIN_1_0);
pin_clear(PIN_1_6);
pin_clear(PIN_2_5);
// set P1.5 to analog in
int i = 0;
cio_printf("setup 1.5 for analog in: %i\n\r", pin_setup(PIN_1_5, PIN_FUNCTION_ANALOG_IN));
dump_regs("p1.5 analog in");
int adcin1 = pin_analog_read(PIN_1_5);
int adcin2 = 0;
cio_printf("Analog read p1.5: %x\n\r", adcin1);
// set P2.2 to PWM with period of 20ms and duty cycle of 7.5%
cio_printf("setup 2.2 for PWM: %i\n\r", pin_setup(PIN_2_2, PIN_FUNCTION_PWM));
dump_regs("p2.2 PWM");
// only one of the two possible pins on port two are allowed to be set to PWM
cio_printf("setup 2.1 for PWM: %i\n\r", pin_setup(PIN_2_1, PIN_FUNCTION_PWM));
// period
pin_pwm_function(PIN_2_2, 20000);
pin_pwm_control(PIN_2_2, adc2dc(adcin1));
while (1) {
delay();
pin_toggle(PIN_1_0);
pin_toggle(PIN_1_6);
if(i++ % 2 == 0) {
pin_toggle(PIN_2_5);
}
if(!pin_digital_read(PIN_1_3)) {
pin_toggle(PIN_1_6);
while(!pin_digital_read(PIN_1_3)) __asm__("nop");
}
adcin2 = pin_analog_read(PIN_1_5);
// only output ADC value if delta was more then 5
if(adcin2 - adcin1 > 5 || adcin1 - adcin2 > 5) {
adcin1 = adcin2;
cio_printf("Analog read at p1.5: %x (%i)\n\r", adcin2, adcin2);
pin_pwm_control(PIN_2_2, adc2dc(adcin1));
}
}
return 0;
}
