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)
50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/* Copyright (c) 2012 mbed.org */
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#ifndef TIMER_H
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#define TIMER_H
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#include <stdint.h>
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#include "cmsis_os.h"
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namespace rtos {
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/*! The RtosTimer class allow creating and and controlling of timer functions in the system.
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A timer function is called when a time period expires whereby both on-shot and
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periodic timers are possible. A timer can be started, restarted, or stopped.
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Timers are handled in the thread osTimerThread.
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Callback functions run under control of this thread and may use CMSIS-RTOS API calls.
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*/
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class RtosTimer {
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public:
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/*! Create and Start timer.
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\param task name of the timer call back function.
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\param type osTimerOnce for one-shot or osTimerPeriodic for periodic behaviour. (default: osTimerPeriodic)
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\param argument argument to the timer call back function. (default: NULL)
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*/
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RtosTimer(void (*task)(void const *argument),
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os_timer_type type=osTimerPeriodic,
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void *argument=NULL);
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/*! Stop the timer.
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\return status code that indicates the execution status of the function.
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*/
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osStatus stop(void);
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/*! start a timer.
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\param millisec time delay value of the timer.
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\return status code that indicates the execution status of the function.
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*/
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osStatus start(uint32_t millisec);
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private:
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osTimerId _timer_id;
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osTimerDef_t _timer;
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#ifdef CMSIS_OS_RTX
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uint32_t _timer_data[5];
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#endif
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};
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}
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#endif
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