bool hasExpressionPedal(){
/* clearPin(EXPRESSION_PEDAL_TIP_PORT, EXPRESSION_PEDAL_TIP_PIN); */
configureDigitalInput(EXPRESSION_PEDAL_TIP_PORT, EXPRESSION_PEDAL_TIP_PIN, GPIO_PuPd_UP);
bool connected = getPin(EXPRESSION_PEDAL_TIP_PORT, EXPRESSION_PEDAL_TIP_PIN);
setupExpressionPedal();
return connected;
}
/**
* Configure EXTI callback
*/
void setupSwitchB(void (*f)()){
externalInterruptCallbackB = f;
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
/* Enable the clocks */
RCC_AHB1PeriphClockCmd(SWITCH_B_CLOCK, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
/* Configure switch pin */
configureDigitalInput(SWITCH_B_PORT, SWITCH_B_PIN, GPIO_PuPd_UP);
/* Connect EXTI Line to GPIO Pin */
SYSCFG_EXTILineConfig(SWITCH_B_PORT_SOURCE, SWITCH_B_PIN_SOURCE);
/* Configure EXTI line */
EXTI_StructInit(&EXTI_InitStructure);
EXTI_InitStructure.EXTI_Line = SWITCH_B_PIN_LINE;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Enable and set EXTI Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = SWITCH_B_IRQ;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = SWITCH_B_PRIORITY;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = SWITCH_B_SUBPRIORITY;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void setup(){
// NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0); // 0 bits for preemption, 4 bits for subpriority
/* Set up interrupt controller: 2 bits for priority (0-3),
* 2 bits for sub-priority (0-3). Priorities control which
* interrupts are allowed to preempt one another.
*/
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
/* Increase SysTick priority to be higher than USB interrupt
* priority. USB code stalls inside interrupt and we can't let
* this throw off the SysTick timer.
*/
NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(NVIC_PriorityGroup_2, SYSTICK_PRIORITY, SYSTICK_SUBPRIORITY));
NVIC_SetPriority(DMA1_Stream3_IRQn, NVIC_EncodePriority(NVIC_PriorityGroup_2, 0, 0));
NVIC_SetPriority(DMA1_Stream4_IRQn, NVIC_EncodePriority(NVIC_PriorityGroup_2, 0, 0));
NVIC_SetPriority(SPI2_IRQn, NVIC_EncodePriority(NVIC_PriorityGroup_2, 1, 0));
NVIC_SetPriority(ADC_IRQn, NVIC_EncodePriority(NVIC_PriorityGroup_2, 2, 0));
ledSetup();
setLed(RED);
/* check if we need to DFU boot */
configureDigitalInput(SWITCH_B_PORT, SWITCH_B_PIN, GPIO_PuPd_UP);
if(isPushButtonPressed())
jump_to_bootloader();
adcSetup();
clockSetup();
setupSwitchA(footSwitchCallback);
setupSwitchB(pushButtonCallback);
settings.init();
midi.init(MIDI_CHANNEL);
patches.init();
#ifdef EXPRESSION_PEDAL
#ifndef OWLMODULAR
setupExpressionPedal();
#endif
#endif
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE); // DEBUG
configureDigitalOutput(GPIOB, GPIO_Pin_1); // PB1, DEBUG LED
debugClear();
#ifdef DEBUG_AUDIO
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); // DEBUG
configureDigitalOutput(GPIOA, GPIO_Pin_7); // PA7 DEBUG
configureDigitalOutput(GPIOC, GPIO_Pin_5); // PC5 DEBUG
clearPin(GPIOC, GPIO_Pin_5); // DEBUG
clearPin(GPIOA, GPIO_Pin_7); // DEBUG
#endif /* DEBUG_AUDIO */
usb_init();
#if SERIAL_PORT == 1
setupSerialPort1(115200);
#elif SERIAL_PORT == 2
setupSerialPort2(115200); // expression pedal
#warning expression pedal jack configured as serial port
#ifdef EXPRESSION_PEDAL
#error invalid configuration
#endif
#endif
#ifdef OWLMODULAR
configureDigitalInput(GPIOB, GPIO_Pin_6, GPIO_PuPd_NOPULL); // PB6 OWL Modular digital input
configureDigitalOutput(GPIOB, GPIO_Pin_7); // PB7 OWL Modular digital output
setPin(GPIOB, GPIO_Pin_7); // PB7 OWL Modular digital output
#endif
codec.setup();
codec.init(settings);
printString("startup\n");
updateBypassMode();
codec.start();
}