salfter/nixie-driver
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Cleanup a little.

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cnlohr
2023-04-23 22:48:56 -04:00
parent ea2f6f3b8e
commit dd3539706a
1 changed files with 5 additions and 3 deletions
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8
firmware/nixitest1/nixitest1.c
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@@ -187,8 +187,8 @@ void ADC1_IRQHandler(void)
// There's a neat trick where you can divide by weird decimal divisors
// by adding and subtracing terms. We perform this trick here and below
//
// 1÷(1÷4−1÷64−1÷128−1÷1024) is roughly equal to dividing by 4.43290
// We actually can simplify it for our purposes as: 1÷(1÷4−1÷64−1÷128)
// 1÷(1÷4−1÷64−1÷128−1÷1024) is about equal to dividing by 4.43290
// It can be simplified it for our purposes as: 1÷(1÷4−1÷64−1÷128)
//
// You can arbitrarily add and subtract terms to get as closed to your
// desired target value as possbile.
@@ -454,6 +454,9 @@ int main()
RCC->APB2PCENR |= RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOC |
RCC_APB2Periph_GPIOA | RCC_APB2Periph_TIM1 | RCC_APB2Periph_ADC1;
// I'm paranoid - let's make sure all tube cathodes are high-Z.
ApplyOnMask( 0 );
GPIOD->CFGLR =
(GPIO_Speed_10MHz | GPIO_CNF_OUT_PP)<<(4*6) | // GPIO D6 Debug
(GPIO_Speed_50MHz | GPIO_CNF_OUT_PP)<<(4*7) | // DIG_AUX
@@ -472,7 +475,6 @@ int main()
(GPIO_Speed_50MHz | GPIO_CNF_OUT_PP)<<(4*6) | // DIG_6
(GPIO_Speed_50MHz | GPIO_CNF_OUT_PP)<<(4*7); // DIG_7
ApplyOnMask( 0 );
SetupADC();
SetupTimer();