demo of driving MAX2719 dot matrix displays with STM32F103 Bluepill
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f103-dotmatrix/project/main.c

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2.9 KiB

#include "main.h"
#include "hw_init.h"
#include "com/debug.h"
#include "com/com_fileio.h"
#include "com/com_iface.h"
#include "bus/event_queue.h"
#include "bus/event_handler.h"
#include "utils/timebase.h"
#include "colorled.h"
#include "display.h"
#include <math.h>
//#include <sbmp.h>
#include "dotmatrix.h"
#include "arm_math.h"
#include "mode_audio.h"
#include "scrolltext.h"
/** Functional mode */
typedef enum {
MODE_AUDIO,
MODE_LIFE,
MODE_SNAKE,
MODE_END,
} GameMode;
static void poll_subsystems(void);
static void gamepad_rx(ComIface *iface);
static void boot_animation(void);
static void switch_mode(void *unused); // circle b/w modes
static void activate_mode(void); // activate currently selected mode
static task_pid_t capture_task_id;
static GameMode app_mode;
static void switch_mode(void *unused)
{
(void)unused;
if (++app_mode == MODE_END) {
app_mode = 0;
}
activate_mode();
}
#define SCROLL_STEP 20
static void activate_mode(void)
{
// --- Audio FFT mode ---
if (app_mode == MODE_AUDIO) {
info("MODE: Audio");
scrolltext("Audio FFT", SCROLL_STEP);
audio_mode_active = true;
enable_periodic_task(capture_task_id, true);
} else {
audio_mode_active = false;
enable_periodic_task(capture_task_id, false);
}
// --- Game Of Life ---
if (app_mode == MODE_LIFE) {
info("MODE: Life");
scrolltext("Game of Life", SCROLL_STEP);
dmtx_clear(dmtx);
dmtx_set(dmtx, 5, 5, 1);
dmtx_show(dmtx);
//
} else {
//
}
// --- Snake Minigame ---
if (app_mode == MODE_SNAKE) {
info("MODE: Snake");
scrolltext("Snake", SCROLL_STEP);
dmtx_clear(dmtx);
dmtx_set(dmtx, 13, 13, 1);
dmtx_show(dmtx);
//
} else {
//
}
}
int main(void)
{
hw_init();
banner("*** FFT dot matrix display ***");
banner_info("(c) Ondrej Hruska, 2016");
scrolltext("STM32 F103", SCROLL_STEP);
boot_animation();
gamepad_iface->rx_callback = gamepad_rx;
capture_task_id = add_periodic_task(capture_audio, NULL, 10, false);
ms_time_t last;
while (1) {
if (ms_loop_elapsed(&last, 500)) {
GPIOC->ODR ^= 1 << 13;
}
poll_subsystems();
}
}
static void poll_subsystems(void)
{
// poll serial buffers (runs callback)
com_poll(debug_iface);
//com_poll(data_iface);
com_poll(gamepad_iface);
// run queued tasks
tq_poll();
// handle queued events
Event evt;
until_timeout(2) { // take 2 ms max
if (eq_take(&evt)) {
run_event_handler(&evt);
} else {
break;
}
}
}
static void boot_animation(void)
{
// Boot animation (for FFT)
for(int i = 0; i < 16; i++) {
dmtx_set(dmtx, i, 0, 1);
dmtx_show(dmtx);
delay_ms(25);
}
}
static void gamepad_rx(ComIface *iface)
{
uint8_t ch;
while(com_rx(iface, &ch)) {
// com_tx(debug_iface, ch);
// com_tx(debug_iface, '\n');
/* SELECT */
if (ch == 'I') {
tq_post(switch_mode, NULL);
}
}
}
//void dlnk_rx(SBMP_Datagram *dg)
//{
// (void)dg;
// //dbg("Rx dg type %d", dg->type);
//}