more experiments
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parent
e6c02baf95
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59c348a2e4
3 changed files with 89 additions and 43 deletions
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@ -4,7 +4,9 @@
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#include "keyer.h"
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extern const uint LED_PIN;
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extern const uint LEFT_PADDLE_PIN;
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extern const uint RIGHT_PADDLE_PIN;
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bool left_paddle_pressed()
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{
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@ -15,42 +17,84 @@ bool left_paddle_pressed()
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return false;
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}
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bool right_paddle_pressed()
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{
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if (!gpio_get(RIGHT_PADDLE_PIN))
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{
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return true;
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}
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return false;
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}
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uint64_t calcElementDurationUs(uint8_t wpm)
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{
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uint64_t duration = static_cast<uint64_t>(1.2 / static_cast<uint64_t>(wpm) * 1000 * 1000);
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return duration;
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}
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Keyer::Keyer(uint8_t wpm) : m_wpm(wpm)
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{
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m_elementDuration = calcElementDurationUs(m_wpm);
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}
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void Keyer::run()
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{
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auto timestamp = get_absolute_time();
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switch (state)
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{
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case State::Wait:
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if (left_paddle_pressed())
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if (left_paddle_pressed()) {
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state = State::Dit;
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break;
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case State::Dit:
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printf(".");
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if (left_paddle_pressed())
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state = State::InterCharSpace;
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else
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state = State::Wait;
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break;
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case State::Dah:
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printf("-");
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++numElements;
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if (numElements == 3)
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{
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numElements = 0;
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if (left_paddle_pressed())
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state = State::InterCharSpace;
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else
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state = State::Wait;
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} else if (right_paddle_pressed()) {
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state = State::Dah;
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}
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break;
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case State::InterCharSpace:
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printf("(.)");
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if (left_paddle_pressed())
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state = State::Dit;
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case State::Dit:
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if (!m_currentlyKeying)
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{
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m_currentlyKeying = true;
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m_keying_until = make_timeout_time_us(m_elementDuration);
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gpio_put(LED_PIN, 1);
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}
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else
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{
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if (absolute_time_diff_us(timestamp, m_keying_until) <= 0)
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{
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m_currentlyKeying = false;
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gpio_put(LED_PIN, 0);
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m_previousState = State::Dit;
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state = State::InterCharSpace;
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}
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}
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break;
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case State::Dah:
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if(!m_currentlyKeying) {
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m_currentlyKeying = true;
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m_keying_until = make_timeout_time_us(m_elementDuration * 3);
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gpio_put(LED_PIN, 1);
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} else {
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if (absolute_time_diff_us(timestamp, m_keying_until) <= 0)
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{
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m_currentlyKeying = false;
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gpio_put(LED_PIN, 0);
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m_previousState = State::Dah;
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state = State::InterCharSpace;
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}
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}
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break;
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case State::InterCharSpace:
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if (m_previousState != State::InterCharSpace)
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{
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m_pausing_until = make_timeout_time_us(m_elementDuration);
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m_previousState = State::InterCharSpace;
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}
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if(absolute_time_diff_us(timestamp, m_pausing_until) <= 0) {
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state = State::Wait;
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}
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break;
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default:
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14
src/keyer.h
14
src/keyer.h
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@ -12,18 +12,20 @@ public:
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InterCharSpace,
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};
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Keyer(uint8_t wpm);
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void run();
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private:
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Keyer() {};
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State state{State::Wait};
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uint8_t numElements{0};
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State m_previousState{State::Wait};
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uint8_t m_wpm{18};
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uint64_t m_elementDuration{0};
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bool m_currentlyKeying {false};
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absolute_time_t m_keying_until{0};
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absolute_time_t m_pausing_until{0};
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};
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inline uint64_t element_duration_us(uint8_t wpm)
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{
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uint64_t duration = static_cast<uint64_t>(1.2 / static_cast<uint64_t>(wpm) * 1000 * 1000);
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return duration;
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}
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#endif
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@ -8,15 +8,16 @@
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namespace
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{
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const uint LED_PIN = PICO_DEFAULT_LED_PIN;
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const uint RIGHT_PADDLE_PIN = 15;
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}
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extern const uint LED_PIN = PICO_DEFAULT_LED_PIN;
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extern const uint LEFT_PADDLE_PIN = 14;
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extern const uint RIGHT_PADDLE_PIN = 15;
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void setup()
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{
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stdio_init_all();
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gpio_init(LED_PIN);
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gpio_set_dir(LED_PIN, GPIO_OUT);
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gpio_put(LED_PIN, 0);
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gpio_init(RIGHT_PADDLE_PIN);
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gpio_set_dir(RIGHT_PADDLE_PIN, GPIO_IN);
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gpio_pull_up(RIGHT_PADDLE_PIN);
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sleep_ms(1000);
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}
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int main()
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{
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stdio_init_all();
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timer_hw->dbgpause = 0; // fix problem with debug and sleep_ms https://github.com/raspberrypi/pico-sdk/issues/1152#issuecomment-1418248639
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sleep_ms(1000);
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setup();
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Settings settings{read_settings()};
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printf("\nIambic mode (loaded): %d\n", static_cast<int>(settings.mode));
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printf("WPM (loaded): %d\n", settings.wpm);
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printf("Element duration (u_sec): %" PRIu64 "\n", element_duration_us(settings.wpm));
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// printf("\nIambic mode (loaded): %d\n", static_cast<int>(settings.mode));
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// printf("WPM (loaded): %d\n", settings.wpm);
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// printf("Element duration (u_sec): %" PRIu64 "\n", element_duration_us(settings.wpm));
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printf("\n");
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Keyer keyer;
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Keyer keyer(settings.wpm);
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while (true)
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{
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sleep_us(element_duration_us(settings.wpm));
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keyer.run();
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}
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