Chris Arndt / Mbed OS STM32F103_USBMIDI_Switchbox

Simple USB-MIDI foot controller

Dependencies:   PinDetect USBDevice_STM32F103 mbed-STM32F103C8T6

main.cpp@7:553836a26221, 2017-08-04 (annotated)

Committer:
SpotlightKid
Date:
Fri Aug 04 04:20:37 2017 +0200
Revision:
7:553836a26221
Parent:
6:2f804d29cbb0
Child:
8:75c5ec68765e
Fix controller number; use internal pin pull-ups

Who changed what in which revision?

UserRevisionLine numberNew contents of line
SpotlightKid 0:2f530d7169a6 1 #include "stm32f103c8t6.h"
SpotlightKid 0:2f530d7169a6 2 #include "mbed.h"
SpotlightKid 3:8b8cb5392fa0 3 #include "mbed_events.h"
SpotlightKid 0:2f530d7169a6 4 #include "USBMIDI.h"
SpotlightKid 3:8b8cb5392fa0 5 #include "midiswitch.h"
SpotlightKid 0:2f530d7169a6 6
SpotlightKid 0:2f530d7169a6 7
SpotlightKid 3:8b8cb5392fa0 8 /* ******************** Configuration ***************************** */
SpotlightKid 3:8b8cb5392fa0 9
SpotlightKid 3:8b8cb5392fa0 10 #define NUM_SWITCHES 2
SpotlightKid 0:2f530d7169a6 11
SpotlightKid 3:8b8cb5392fa0 12 /* array of SwitchConfig structs */
SpotlightKid 3:8b8cb5392fa0 13 SwitchConfig switches[NUM_SWITCHES] = {
SpotlightKid 3:8b8cb5392fa0 14 // pin, channel, control, on_value, off_value
SpotlightKid 3:8b8cb5392fa0 15 {PB_4, 1, 1, 127, 0},
SpotlightKid 7:553836a26221 16 {PB_5, 1, 64, 64, 0},
SpotlightKid 3:8b8cb5392fa0 17 };
SpotlightKid 3:8b8cb5392fa0 18
SpotlightKid 3:8b8cb5392fa0 19
SpotlightKid 3:8b8cb5392fa0 20 /* ******************** End Configuration ************************* */
SpotlightKid 0:2f530d7169a6 21
SpotlightKid 3:8b8cb5392fa0 22 #ifndef NDEBUG
SpotlightKid 3:8b8cb5392fa0 23 Serial *serial;
SpotlightKid 3:8b8cb5392fa0 24 #endif
SpotlightKid 7:553836a26221 25 USBMIDI * midi;
SpotlightKid 3:8b8cb5392fa0 26 /* array of pointers to SwitchHandler instances */
SpotlightKid 3:8b8cb5392fa0 27 SwitchHandler * handlers[NUM_SWITCHES];
SpotlightKid 3:8b8cb5392fa0 28
SpotlightKid 3:8b8cb5392fa0 29
SpotlightKid 3:8b8cb5392fa0 30 void write_midi_msg(MIDIMessage msg) {
SpotlightKid 6:2f804d29cbb0 31 #ifndef NDEBUG
SpotlightKid 6:2f804d29cbb0 32 serial->printf("Sending MIDI message controller=%d channel=%d value=%d\r\n",
SpotlightKid 6:2f804d29cbb0 33 msg.controller(), msg.channel(), msg.value());
SpotlightKid 6:2f804d29cbb0 34 #endif
SpotlightKid 3:8b8cb5392fa0 35 midi->write(msg);
SpotlightKid 3:8b8cb5392fa0 36 }
SpotlightKid 0:2f530d7169a6 37
SpotlightKid 0:2f530d7169a6 38 int main() {
SpotlightKid 0:2f530d7169a6 39 // Configure system clock (72MHz HSE clock, 48MHz USB clock)
SpotlightKid 0:2f530d7169a6 40 confSysClock();
SpotlightKid 0:2f530d7169a6 41
SpotlightKid 3:8b8cb5392fa0 42 #ifndef NDEBUG
SpotlightKid 0:2f530d7169a6 43 serial = new Serial(PA_9, PA_10);
SpotlightKid 3:8b8cb5392fa0 44 serial->printf("Creating event queue...\r\n");
SpotlightKid 3:8b8cb5392fa0 45 #endif
SpotlightKid 5:1208f33a9a7c 46 EventQueue queue;
SpotlightKid 5:1208f33a9a7c 47
SpotlightKid 5:1208f33a9a7c 48 #ifndef NDEBUG
SpotlightKid 5:1208f33a9a7c 49 serial->printf("Creating USBMIDI device...\r\n");
SpotlightKid 5:1208f33a9a7c 50 #endif
SpotlightKid 5:1208f33a9a7c 51 midi = new USBMIDI(0x1f00, 0x2012, 0x0001);
SpotlightKid 3:8b8cb5392fa0 52
SpotlightKid 3:8b8cb5392fa0 53 #ifndef NDEBUG
SpotlightKid 3:8b8cb5392fa0 54 serial->printf("Initializing LED...\r\n");
SpotlightKid 3:8b8cb5392fa0 55 #endif
SpotlightKid 3:8b8cb5392fa0 56 DigitalOut led1(LED1);
SpotlightKid 3:8b8cb5392fa0 57 led1 = 1;
SpotlightKid 3:8b8cb5392fa0 58
SpotlightKid 3:8b8cb5392fa0 59 #ifndef NDEBUG
SpotlightKid 3:8b8cb5392fa0 60 serial->printf("Initializing event queue thread...\r\n");
SpotlightKid 3:8b8cb5392fa0 61 #endif
SpotlightKid 3:8b8cb5392fa0 62 // create a thread that'll run the event queue's dispatch function
SpotlightKid 5:1208f33a9a7c 63 Thread usbThread;
SpotlightKid 3:8b8cb5392fa0 64 #ifndef NDEBUG
SpotlightKid 3:8b8cb5392fa0 65 serial->printf("Starting event queue thread...\r\n");
SpotlightKid 3:8b8cb5392fa0 66 #endif
SpotlightKid 3:8b8cb5392fa0 67 usbThread.start(callback(&queue, &EventQueue::dispatch_forever));
SpotlightKid 3:8b8cb5392fa0 68
SpotlightKid 3:8b8cb5392fa0 69 for (int sw=0; sw < NUM_SWITCHES; sw++) {
SpotlightKid 3:8b8cb5392fa0 70 #ifndef NDEBUG
SpotlightKid 3:8b8cb5392fa0 71 serial->printf("Initializing switch handler %d...\r\n", sw + 1);
SpotlightKid 3:8b8cb5392fa0 72 #endif
SpotlightKid 6:2f804d29cbb0 73 handlers[sw] = new SwitchHandler(&queue, &write_midi_msg, &switches[sw]);
SpotlightKid 3:8b8cb5392fa0 74 }
SpotlightKid 3:8b8cb5392fa0 75
SpotlightKid 3:8b8cb5392fa0 76 #ifndef NDEBUG
SpotlightKid 3:8b8cb5392fa0 77 serial->printf("Entering main loop...\r\n");
SpotlightKid 3:8b8cb5392fa0 78 #endif
SpotlightKid 0:2f530d7169a6 79 while (true) {
SpotlightKid 3:8b8cb5392fa0 80 wait(0.5f);
SpotlightKid 3:8b8cb5392fa0 81 led1 = !led1;
SpotlightKid 3:8b8cb5392fa0 82 }
SpotlightKid 0:2f530d7169a6 83 }