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fix: radio transmitted 1kHz tone if screen was dimmed

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Nunu 2024-01-22 10:33:30 +01:00
parent 9ec193ece3
commit a7f815bb64
1 changed files with 3 additions and 1 deletions
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4
driver/backlight.c
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@ -28,7 +28,9 @@ bool backlightOn;
void BACKLIGHT_InitHardware()
{
// 48MHz / 94 / 1024 ~ 500Hz
const uint32_t PWM_FREQUENCY_HZ = 1000;
// kamilsss655: needs to be higher than audible frequency otherwise it will
// be heard on the receiving radio if the screen is dimmed during tx
const uint32_t PWM_FREQUENCY_HZ = 6000;
PWM_PLUS0_CLKSRC |= ((48000000 / 1024 / PWM_FREQUENCY_HZ) << 16);
PWM_PLUS0_PERIOD = 1023;