static void cmd_led(BaseSequentialStream *chp, int argc, char *argv[])
{
const float r = (argc > 0) ? atoff(argv[0]) : 0;
const float g = (argc > 1) ? atoff(argv[1]) : 0;
const float b = (argc > 2) ? atoff(argv[2]) : 0;
led_set_rgb(r, g, b);
}
void Programs::render() {
if (programs.size() == 0)
return;
res &r = programs[0];
if (r.t <= systick_millis_count) {
if (space == HSV) {
r.t = r.r->render(HSVPixels) + systick_millis_count;
}else{
r.t = r.r->render(RGBPixels) + systick_millis_count;
}
// The first program asked to render... do the rest.
for (unsigned int i=1; i<programs.size(); i++) {
res &rr = programs[i];
if (space == HSV) {
rr.r->render(HSVPixels);
}else{
rr.r->render(RGBPixels);
}
}
}
// Render the HSV buffer onto our RGB pixels
if (space == HSV) {
for (int i=0; i<nLEDs; i++) {
led_set(i, HSVPixels[i]);
}
}else{
for (int i=0; i<nLEDs; i++) {
led_set_rgb(i, RGBPixels[i]);
}
}
led_show();
}
void main(void)
{
uint8_t max = MAX;
dp_std_status_t current_status;
dp_std_command_t cmd_from_master;
int8_t adc = 1;
// Debug LED
TRISCbits.TRISC2 = 0;
PORTCbits.RC2 = 0;
// Initialize LEDs
led_initialize();
// Initialize ADC
OpenADC (
ADC_FOSC_16 & ADC_RIGHT_JUST & ADC_4_TAD, // ADC_4_TAD = Converting over 4*(1/(FOSC/16)) = 4*(1/250kHz) = 16us
ADC_CH0 & ADC_INT_OFF & ADC_REF_VDD_VSS, // FOSC = 4 MHz
0b0000000000000001 // wieso geht ADC_1ANA nicht?
);
// Open SPI
OpenSPI1(SLV_SSON, MODE_00, SMPMID);
// Initial ADC conversion and SPI reading
ConvertADC();
cmd_from_master.byte = spi_tranceive(0);
/* MAIN LOOP:
* At first we read the ADC value of the piezo-weight sensors if already present.
* Then we fill this data into a status package which is to be sent to our SPI master.
* After that we await a command from our SPI master and send our status to it (tranceive).
* If we got a color, we light our LEDs per PWM. If we got a command, we analyze it and take action.
*/
while (1) {
if (!BusyADC()) {
adc = ReadADC() >> 2; // we just need 8bits from the returned 10bit sample
ConvertADC(); // already start next conversion. Meanwhile we're gonna do stuff with SPI
}
current_status.data.value = adc;
current_status.is_pressed = 0; // TODO: Analyze the adc value and set this one to 0 or 1
cmd_from_master.byte = spi_tranceive(current_status.byte); // TODO: error handling needed: what if spi is not present? Will we operate on our own?
if (cmd_from_master.is_rgb) {
// we got a color
PORTCbits.RC2 = 0; // Debug LED
led_set_rgb(cmd_from_master.rgb.r*10, cmd_from_master.rgb.g*10, cmd_from_master.rgb.b*10); // TODO: introduce multiplicator to reach 100% PWM
} else {
// we got a command
PORTCbits.RC2 = 1; // Debug LED
}
}
void display_color(uint8_t raw_color)
{
// TODO: decode color to rgb
// ...
led_set_rgb(raw_color, raw_color, raw_color);
}
