ua1zbe
a1206d6fd4
Features: - VFO mode with direct frequency input - POCSAG decoder (512/1200 baud) with BCH(31,21) correction - Full-screen Spectrum analyzer - FM Radio receiver - RSSI signal indicator overlay - Custom boot splash (UA1ZBE / POCSAG pager / build date) Architecture: - app/mode.c — mode dispatcher (VFO/POCSAG/Spectrum/FM) - app/boot_splash.c — 2-second boot splash - app/pocsag/ — POCSAG decoder + BCH correction - app/display_rssi.c — RSSI indicator - main.c — entry point with custom init - syscalls.c — bare-metal _sbrk stub Build: arm-none-eabi-gcc -Os -flto -Wall -Werror -Wextra Size: 57.9KB Flash / 3.6KB RAM Controls: - 0-9: Direct frequency input (VFO) - SK2: POCSAG mode - SK1: Spectrum analyzer - 0: FM Radio - EXIT: Return to VFO - F/*: Toggle 512/1200 baud (in POCSAG)
52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
#include "cmsis_os2.h" // CMSIS RTOS header file
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/*----------------------------------------------------------------------------
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* Timer: Sample timer functions
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*---------------------------------------------------------------------------*/
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/*----- One-Shoot Timer Example -----*/
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osTimerId_t tim_id1; // timer id
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static uint32_t exec1; // argument for the timer call back function
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// One-Shoot Timer Function
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static void Timer1_Callback (void const *arg) {
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// add user code here
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}
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/*----- Periodic Timer Example -----*/
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osTimerId_t tim_id2; // timer id
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static uint32_t exec2; // argument for the timer call back function
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// Periodic Timer Function
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static void Timer2_Callback (void const *arg) {
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// add user code here
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}
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// Example: Create and Start timers
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int Init_Timers (void) {
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osStatus_t status; // function return status
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// Create one-shoot timer
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exec1 = 1U;
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tim_id1 = osTimerNew((osTimerFunc_t)&Timer1_Callback, osTimerOnce, &exec1, NULL);
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if (tim_id1 != NULL) { // One-shot timer created
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// start timer with delay 100ms
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status = osTimerStart(tim_id1, 100U);
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if (status != osOK) {
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return -1;
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}
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}
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// Create periodic timer
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exec2 = 2U;
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tim_id2 = osTimerNew((osTimerFunc_t)&Timer2_Callback, osTimerPeriodic, &exec2, NULL);
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if (tim_id2 != NULL) { // Periodic timer created
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// start timer with periodic 1000ms interval
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status = osTimerStart(tim_id2, 1000U);
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if (status != osOK) {
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return -1;
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}
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}
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return NULL;
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}
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