/////////////////////////////////////////////////////////////////////////////
// This hook is called when a MIDI package has been received
/////////////////////////////////////////////////////////////////////////////
void APP_MIDI_NotifyPackage(mios32_midi_port_t port, mios32_midi_package_t midi_package)
{
// toggle Status LED on each incoming MIDI package
MIOS32_BOARD_LED_Set(0x0001, ~MIOS32_BOARD_LED_Get());
// 1) the LED should be turned on whenever a Note On Event with velocity > 0
// has been received
if( midi_package.type == NoteOn && midi_package.velocity > 0 ) {
// determine LED number (one of 12, each octave)
u8 led = midi_package.note % 12;
// turn on LED
MIOS32_BOARD_J5_PinSet(led, 1);
}
// 2) the LED should be turned off whenever a Note Off Event or a Note On
// event with velocity == 0 has been received (the MIDI spec says, that velocity 0
// should be handled like Note Off)
else if( (midi_package.type == NoteOff) ||
(midi_package.type == NoteOn && midi_package.velocity == 0) ) {
// determine LED number (one of 12, each octave)
u8 led = midi_package.note % 12;
// turn off LED
MIOS32_BOARD_J5_PinSet(led, 0);
}
}
/////////////////////////////////////////////////////////////////////////////
// This timer function is periodically called each 100 uS
/////////////////////////////////////////////////////////////////////////////
static void APP_Periodic_100uS(void)
{
// this is a very simple way to generate a nice PWM based flashing effect
// for multiple LEDs from a single timer
u8 *led_trigger_ptr = (u8 *)&led_trigger[0];
u8 *led_pwm_counter_ptr = (u8 *)&led_pwm_counter[0];
int i;
for(i=0; i<NUM_LED_TRIGGERS; ++i, ++led_trigger_ptr, ++led_pwm_counter_ptr) {
if( *led_trigger_ptr ) {
if( --*led_pwm_counter_ptr ) {
if( *led_pwm_counter_ptr == *led_trigger_ptr ) {
if( i == 0 )
MIOS32_BOARD_LED_Set(1, 1);
else
MIOS32_BOARD_J5_PinSet(i-1, 1);
}
} else {
*led_pwm_counter_ptr = LED_PWM_PERIOD;
--*led_trigger_ptr;
if( i == 0 )
MIOS32_BOARD_LED_Set(1, 0);
else
MIOS32_BOARD_J5_PinSet(i-1, 0);
}
}
}
}
/////////////////////////////////////////////////////////////////////////////
// This hook is called before an AIN channel scan
// It has been installed in APP_Init()
/////////////////////////////////////////////////////////////////////////////
s32 AIN_ServicePrepare(void)
{
// increment counter, skip on the first 9 invocations (= 9 mS setup time)
if( ++setup_time_ctr < 10 )
return 1; // skip scan (see documentation of MIOS32_AIN_ServicePrepareCallback_Init())
// scan with the 10th invocation
if( setup_time_ctr++ == 10 )
return 0; // allow scan, value changes will be forwarded to APP_AIN_NotifyChange()
// reset counter
setup_time_ctr = 0;
// toggle scan direction
scan_x ^= 1;
// re-initialize AIN pins at J5A (Pin C0..C3)
// Touchpanel connections:
// J5.A0: Right
// J5.A1: Top
// J5.A2: Left
// J5.A3: Bottom
if( scan_x ) {
// X Scan
// A2 (Left) = 0V
MIOS32_BOARD_J5_PinInit(2, MIOS32_BOARD_PIN_MODE_OUTPUT_PP);
MIOS32_BOARD_J5_PinSet(2, 0);
// A0 (Right) = 3.3V
MIOS32_BOARD_J5_PinInit(0, MIOS32_BOARD_PIN_MODE_OUTPUT_PP);
MIOS32_BOARD_J5_PinSet(0, 1);
// A1 (Top) used as ADC Input
MIOS32_BOARD_J5_PinInit(1, MIOS32_BOARD_PIN_MODE_ANALOG);
// switch A3 (Bottom) to high impedance state
MIOS32_BOARD_J5_PinInit(3, MIOS32_BOARD_PIN_MODE_ANALOG);
} else {
// Y Scan
// A1 (Top) = 0V
MIOS32_BOARD_J5_PinInit(1, MIOS32_BOARD_PIN_MODE_OUTPUT_PP);
MIOS32_BOARD_J5_PinSet(1, 0);
// A3 (Bottom) = 3.3V
MIOS32_BOARD_J5_PinInit(3, MIOS32_BOARD_PIN_MODE_OUTPUT_PP);
MIOS32_BOARD_J5_PinSet(3, 1);
// A0 (Right) used as ADC Input
MIOS32_BOARD_J5_PinInit(0, MIOS32_BOARD_PIN_MODE_ANALOG);
// switch A2 (Left) to high impedance state
MIOS32_BOARD_J5_PinInit(2, MIOS32_BOARD_PIN_MODE_ANALOG);
}
return 1; // skip conversion
}
/////////////////////////////////////////////////////////////////////////////
// This hook is called after startup to initialize the application
/////////////////////////////////////////////////////////////////////////////
void APP_Init(void)
{
int i;
// create semaphores
xMIDIINSemaphore = xSemaphoreCreateRecursiveMutex();
xMIDIOUTSemaphore = xSemaphoreCreateRecursiveMutex();
// clear SysEx buffers
for(i=0; i<NUM_SYSEX_BUFFERS; ++i)
sysex_buffer_len[i] = 0;
// install SysEx callback
MIOS32_MIDI_SysExCallback_Init(APP_SYSEX_Parser);
// read EEPROM content
PRESETS_Init(0);
// init terminal
TERMINAL_Init(0);
// init MIDImon
MIDIMON_Init(0);
// start uIP task
UIP_TASK_Init(0);
// initialize status LED
MIOS32_BOARD_LED_Init(0xffffffff);
MIOS32_BOARD_LED_Set(1, 0);
led_pwm_counter[0] = LED_PWM_PERIOD;
led_trigger[0] = LED_PWM_PERIOD; // trigger LED on startup for complete PWM cycle
// initialize additional LEDs connected to J5A
for(i=1; i<NUM_LED_TRIGGERS; ++i) {
led_pwm_counter[i] = LED_PWM_PERIOD;
led_trigger[i] = LED_PWM_PERIOD; // trigger LED on startup for complete PWM cycle
MIOS32_BOARD_J5_PinInit(i-1, MIOS32_BOARD_PIN_MODE_OUTPUT_PP);
MIOS32_BOARD_J5_PinSet(i-1, 0);
}
// initialize J5B/J5C pins as inputs with pull-up enabled
// these pins control diagnostic options of the MIDI monitor
for(i=4; i<12; ++i)
MIOS32_BOARD_J5_PinInit(i, MIOS32_BOARD_PIN_MODE_INPUT_PU);
// install timer function which is called each 100 uS
MIOS32_TIMER_Init(0, 100, APP_Periodic_100uS, MIOS32_IRQ_PRIO_MID);
// print welcome message on MIOS terminal
MIOS32_MIDI_SendDebugMessage("\n");
MIOS32_MIDI_SendDebugMessage("=====================\n");
MIOS32_MIDI_SendDebugMessage("%s\n", MIOS32_LCD_BOOT_MSG_LINE1);
MIOS32_MIDI_SendDebugMessage("=====================\n");
MIOS32_MIDI_SendDebugMessage("\n");
}
