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HUGE FIX for frequency setting

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JP Stringham
2026-02-13 23:08:16 -05:00
parent 9e862774cb
commit 3bad1b474f
1 changed files with 14 additions and 9 deletions
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23
src/main.rs
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@@ -128,8 +128,7 @@ fn main() -> ! {
const MAX_TUNE: u16 = 350u16; const MAX_TUNE: u16 = 350u16;
const MIN_TUNE: u16 = 4u16; const MIN_TUNE: u16 = 4u16;
pwm0.set_top(current_tune); set_tune(current_tune, pwm0);
pwm0.channel_a.set_duty(current_tune / 2);
// Create the I²C drive // Create the I²C drive
let mut i2c = hal::I2C::i2c0( let mut i2c = hal::I2C::i2c0(
@@ -156,7 +155,7 @@ fn main() -> ! {
gfx_buf.clear(); gfx_buf.clear();
gfx_buf.draw_string(20, 14, "Hello Radio!"); gfx_buf.draw_string(20, 14, "Hello Radio!");
let tuned_freq = 272_000u32 / (current_tune as u32); let tuned_freq = 300_000 / (current_tune as u32);
let mut tune_str_buf = [0u8; 5]; let mut tune_str_buf = [0u8; 5];
let len = u32_into_str(tuned_freq, &mut tune_str_buf); let len = u32_into_str(tuned_freq, &mut tune_str_buf);
let tune_str = str::from_utf8(&tune_str_buf[tune_str_buf.len() - len..]).unwrap(); let tune_str = str::from_utf8(&tune_str_buf[tune_str_buf.len() - len..]).unwrap();
@@ -201,24 +200,30 @@ fn main() -> ! {
} }
if tune_up_input.is_low().unwrap() { if tune_up_input.is_low().unwrap() {
info!("Tune UP"); info!("Tune DOWN");
last_input = tick; last_input = tick;
current_tune = MAX_TUNE.min(current_tune + 2); current_tune = MAX_TUNE.min(current_tune + 2);
pwm0.set_top(current_tune); set_tune(current_tune, pwm0);
pwm0.channel_a.set_duty(current_tune / 2);
continue; continue;
} }
if tune_dn_input.is_low().unwrap() { if tune_dn_input.is_low().unwrap() {
info!("Tune DOWN"); info!("Tune UP");
last_input = tick; last_input = tick;
current_tune = MIN_TUNE.max(current_tune - 2); current_tune = MIN_TUNE.max(current_tune - 2);
pwm0.set_top(current_tune); set_tune(current_tune, pwm0);
pwm0.channel_a.set_duty(current_tune / 2);
} }
} }
} }
fn set_tune(
tune: u16,
pwm: &mut rp2040_hal::pwm::Slice<rp2040_hal::pwm::Pwm0, rp2040_hal::pwm::FreeRunning>,
) {
pwm.set_top(tune - 1);
pwm.channel_a.set_duty(tune / 2);
}
// returns the length of the final str removing leading zeroes // returns the length of the final str removing leading zeroes
fn u32_into_str(mut value: u32, str_buf: &mut [u8]) -> usize { fn u32_into_str(mut value: u32, str_buf: &mut [u8]) -> usize {
let mut len = str_buf.len(); let mut len = str_buf.len();