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- uint8_t *txbuf;
- uint8_t *rxbuf;
- int pin = 0;
- void setup(void){
- static uint8_t _txbuf[8] __attribute__ ((section (".sram2")));
- static uint8_t _rxbuf[8] __attribute__ ((section (".sram2")));
- txbuf = _txbuf;
- rxbuf = _rxbuf;
- palSetPadMode(GPIOC,4,PAL_MODE_OUTPUT_PUSHPULL);
- palWritePad(GPIOC,4,1);
- palSetPadMode(GPIOC,5,PAL_MODE_OUTPUT_PUSHPULL);
- palWritePad(GPIOC,5,1);
- }
- void loop(void){
- // POT (ADC2)
- txbuf[2] = 0b00000000;
- for(int pin=0; pin<8; pin++){
- txbuf[0] = pin < 4 ? 0b01100000 : 0b11100000;
- if (pin % 4 == 0) { // pin == 0 || pin == 4
- txbuf[1] = 0b00000000;
- } else if (pin % 4 == 1) { // pin == 1 || pin == 5
- txbuf[1] = 0b00000010;
- } else if (pin % 4 == 2) { // pin == 2 || pin == 6
- txbuf[1] = 0b00000001;
- } else {
- txbuf[1] = 0b00000011;
- }
- palWritePad(GPIOC,4,0);
- spiSelect(&SPID1); // START SPI
- spiSend(&SPID1,3,txbuf);
- spiReceive(&SPID1,3,rxbuf);
- spiUnselect(&SPID1);
- palWritePad(GPIOC,4,1);
- int z = (rxbuf[1] << 8| rxbuf[0]) << 16;
- if (pin == 0){
- PExParameterChange(&parent->PExch[PARAM_INDEX_p1_value],z,0xFFFD);
- }
- else if (pin == 1){
- PExParameterChange(&parent->PExch[PARAM_INDEX_p0_value],z,0xFFFD);
- }
- else if (pin == 2){
- PExParameterChange(&parent->PExch[PARAM_INDEX_p2_value],z,0xFFFD);
- }
- else if (pin == 3){
- PExParameterChange(&parent->PExch[PARAM_INDEX_p3_value],z,0xFFFD);
- }
- else if (pin == 4){
- PExParameterChange(&parent->PExch[PARAM_INDEX_p7_value],z,0xFFFD);
- }
- else if (pin == 5){
- PExParameterChange(&parent->PExch[PARAM_INDEX_p4_value],z,0xFFFD);
- }
- else if (pin == 6){
- PExParameterChange(&parent->PExch[PARAM_INDEX_p6_value],z,0xFFFD);
- }
- else if (pin == 7){
- PExParameterChange(&parent->PExch[PARAM_INDEX_p5_value],z,0xFFFD);
- }
- chThdSleepMilliseconds(1);
- }
- // CV IN (ADC 1)
- txbuf[2] = 0b00000000;
- for(int pin=0; pin<8; pin++){
- txbuf[0] = pin < 4 ? 0b01100000 : 0b11100000;
- if (pin % 4 == 0) { // pin == 0 || pin == 4
- txbuf[1] = 0b00000000;
- } else if (pin % 4 == 1) { // pin == 1 || pin == 5
- txbuf[1] = 0b00000010;
- } else if (pin % 4 == 2) { // pin == 2 || pin == 6
- txbuf[1] = 0b00000001;
- } else {
- txbuf[1] = 0b00000011;
- }
- palWritePad(GPIOC,5,0);
- spiSelect(&SPID1); // START SPI
- spiSend(&SPID1,3,txbuf);
- spiReceive(&SPID1,3,rxbuf);
- spiUnselect(&SPID1);
- palWritePad(GPIOA,5,1);
- int z = 0x07FFFFFF - ((rxbuf[1] << 8| rxbuf[0]) << 16);
- if (pin == 0){
- PExParameterChange(&parent->PExch[PARAM_INDEX_cv6_value],z,0xFFFD);
- }
- else if (pin == 1){
- PExParameterChange(&parent->PExch[PARAM_INDEX_cv4_value],z,0xFFFD);
- }
- else if (pin == 2){
- PExParameterChange(&parent->PExch[PARAM_INDEX_cv2_value],z,0xFFFD);
- }
- else if (pin == 3){
- PExParameterChange(&parent->PExch[PARAM_INDEX_cv1_value],z,0xFFFD);
- }
- else if (pin == 4){
- PExParameterChange(&parent->PExch[PARAM_INDEX_cv5_value],z,0xFFFD);
- }
- else if (pin == 5){
- PExParameterChange(&parent->PExch[PARAM_INDEX_cv7_value],z,0xFFFD);
- }
- else if (pin == 6){
- PExParameterChange(&parent->PExch[PARAM_INDEX_cv3_value],z,0xFFFD);
- }
- else if (pin == 7){
- PExParameterChange(&parent->PExch[PARAM_INDEX_cv0_value],(z),0xFFFD);
- }
- chThdSleepMilliseconds(1);
- }
- }
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