void inline SendDataToTLC5940(struct Queue *argQueue, uint8_t argCount) {
SPCR |= (1 << SPE);
while(argCount) {
if(!QUEUE_Empty(argQueue)) {
cli();
SPDR = QUEUE_Remove(argQueue);
while(!(SPSR & (1 << SPIF)));
--argCount;
sei();
}
}
SPCR &= ~(1 << SPE);
}
int main() {
uint8_t tmpCurrentMode, tmpPreviousMode;
//init ddr
SetHigh(DBP_GSCLK_DDR, DBP_GSCLK_PIN);
SetHigh(DBP_BLANK_DDR, DBP_BLANK_PIN);
SetHigh(DBP_XLAT_DDR, DBP_XLAT_PIN);
SetHigh(DBP_VPRG_DDR, DBP_VPRG_PIN);
SetHigh(DBP_DCPRG_DDR, DBP_DCPRG_PIN);
SetHigh(DBP_SIN_DDR, DBP_SIN_PIN);
SetHigh(DBP_SCLK_DDR, DBP_SCLK_PIN);
//set initial values
SetHigh(DBP_BLANK_PORT, DBP_BLANK_PIN);
SetHigh(DBP_VPRG_PORT, DBP_VPRG_PIN);
SetHigh(DBP_DCPRG_PORT, DBP_DCPRG_PIN);
SetLow(DBP_GSCLK_PORT, DBP_GSCLK_PIN);
SetLow(DBP_XLAT_PORT, DBP_XLAT_PIN);
SetLow(DBP_SIN_PORT, DBP_SIN_PIN);
SetLow(DBP_SCLK_PORT, DBP_SCLK_PIN);
//init adc converter
/*
SetHigh(IRP_TRANSMITTER_DDR, IRP_TRANSMITTER_PIN);
SetLow(IRP_RECEIVER_DDR, IRP_RECEIVER_PIN);
ADMUX = (1 << REFS0); //voltage reference = AVCC, input channel = ADC0
ADCSRA = (1 << ADATE) | (1 << ADIE) | (1 << ADEN) | (1 << ADPS1); //f.osc / 4
ADCSRB = (1 << ADTS1) | (1 << ADTS0); //auto trigger source = timer0 compare match A
*/
//init GSCLK timer
TCCR0A |= (1 << WGM01);
TCCR0B |= (1 << CS02) | (1 << CS00);
OCR0A = 0x03; //f.osc / 4096
TIMSK0 |= (1 << OCIE0A);
//init spi
SetHigh(SPI_SS_DDR, SPI_SS_PIN);
SPCR = (1 << SPE) | (1 << MSTR) | (1 << SPR1); //F_CPU / 16 ~ 365kHz
//init i2c
TWAR = (SLAVE_Address << 1);
TWCR = (1 << TWEA) | (1 << TWEN) | (1 << TWIE);
//init queue
QUEUE_Init(&TWI_InputBuffer);
//send dc data to driver through spi
for(i = 0; i < 36; ++i) {
SPDR = 0xff;
while(!(SPSR & (1 << SPIF)));
}
SetHigh(DBP_XLAT_PORT, DBP_XLAT_PIN);
SetLow(DBP_XLAT_PORT, DBP_XLAT_PIN);
tmpPreviousMode = CMD_SetDC;
SetLow(DBP_VPRG_PORT, DBP_VPRG_PIN);
//send gs data to driver through spi
for(i = 0; i < 72; ++i) {
SPDR = 0xff;
while(!(SPSR & (1 << SPIF)));
}
SPCR &= ~(1 << SPE);
SetHigh(DBP_XLAT_PORT, DBP_XLAT_PIN);
SetLow(DBP_XLAT_PORT, DBP_XLAT_PIN);
SetLow(DBP_BLANK_PORT, DBP_BLANK_PIN);
tmpPreviousMode = CMD_SetGS;
//enable interrupts
sei();
while(1) {
if(!GLB_NeedXLAT && !QUEUE_Empty(&TWI_InputBuffer)) {
tmpCurrentMode = QUEUE_Remove(&TWI_InputBuffer);
switch(tmpCurrentMode) {
case CMD_SetDC: {
SetHigh(DBP_VPRG_PORT, DBP_VPRG_PIN);
SendDataToTLC5940(&TWI_InputBuffer, 36);
GLB_NeedXLAT = 1;
tmpPreviousMode = tmpCurrentMode;
break;
}
case CMD_SetGS: {
if(tmpPreviousMode == CMD_SetGS) {
SetHigh(DBP_SCLK_PORT, DBP_SCLK_PIN);
SetLow(DBP_SCLK_PORT, DBP_SCLK_PIN);
}
SetLow(DBP_VPRG_PORT, DBP_VPRG_PIN);
SendDataToTLC5940(&TWI_InputBuffer, 72);
GLB_NeedXLAT = 1;
tmpPreviousMode = tmpCurrentMode;
break;
}
case CMD_ClearGS: {
if(tmpPreviousMode == CMD_SetGS) {
SetHigh(DBP_SCLK_PORT, DBP_SCLK_PIN);
SetLow(DBP_SCLK_PORT, DBP_SCLK_PIN);
}
SetLow(DBP_VPRG_PORT, DBP_VPRG_PIN);
SPCR |= (1 << SPE);
cli();
for(i = 0; i < 72; ++i) {
SPDR = 0x00;
while(!(SPSR & (1 << SPIF)));
}
sei();
SPCR &= ~(1 << SPE);
GLB_NeedXLAT = 1;
tmpPreviousMode = CMD_SetGS;
break;
}
}
}
}
}
void MTC_ClearEvent(MTC_INFO *p)
{
QUEUE_Empty(p->pQueue);
}