Open snakehand opened 11 months ago
I was trying to generate a 512kHz PWM signal from a 64MHz AHB clock, but when verifying the signal in the laboratory, I found that the frequency was off, in a way consistent with the the ARR being off by one.
https://github.com/stm32-rs/stm32l4xx-hal/blob/bf2ded1fcabe782168d132500d95f9bd1acf48c1/src/pwm.rs#L202
This situation is also alluded to in the linked comment.
Changing line 200 to :
let ticks = clk / freq - 1;
Gave me the correct output frequency. I intend to make a PR linked to this issue.
I was trying to generate a 512kHz PWM signal from a 64MHz AHB clock, but when verifying the signal in the laboratory, I found that the frequency was off, in a way consistent with the the ARR being off by one.
https://github.com/stm32-rs/stm32l4xx-hal/blob/bf2ded1fcabe782168d132500d95f9bd1acf48c1/src/pwm.rs#L202
This situation is also alluded to in the linked comment.
Changing line 200 to :
let ticks = clk / freq - 1;
Gave me the correct output frequency. I intend to make a PR linked to this issue.