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Found out that the offset for setting the pull up/down resistor is wrong during #52
| use super::*; | ||
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| let (gpioa, _) = init(); | ||
| let pin = gpioa.pa8; |
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Any reason you're picking PA8 for all these tests?
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No, not really. I can spread out to a couple more pins. Perhaps both sides of 8 since I believe some settings are split into different registers for pin 0..=7 and 8..=15?
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Do you think we should test more ports too, like B, C etc?
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You could conceivably do all the pins if you converted each to an ErasedPin and shoved them all into an array? If you wanted to you could modify the Parts struct defined here to implement that instead of doing it here?
| use hal::stm32; | ||
| use stm32h5xx_hal::{self as hal, gpio}; | ||
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| pub const F_SYS: HertzU32 = HertzU32::MHz(16); |
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Shouldn't this be used to set the core clock frequency? Currently, it is set to 250MHz on line 113, so deriving the cycles per µs is incorrect here.
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Also, I just put up #61, which should help with doing this derivation
| pub fn await_lo<const CYCLES_PER_US: u32>( | ||
| timer: &Timer<CYCLES_PER_US>, | ||
| pin: u8, | ||
| timeout: MicrosDurationU32, | ||
| ) -> Result<MicrosDurationU32, ErrorTimedOut> { | ||
| await_p(timer, || is_pax_low(pin), timeout) | ||
| } | ||
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| #[allow(dead_code)] | ||
| pub fn await_hi<const CYCLES_PER_US: u32>( | ||
| timer: &Timer<CYCLES_PER_US>, | ||
| pin: u8, | ||
| timeout: MicrosDurationU32, | ||
| ) -> Result<MicrosDurationU32, ErrorTimedOut> { | ||
| await_p(timer, || !is_pax_low(pin), timeout) | ||
| } | ||
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| #[allow(dead_code)] | ||
| pub fn await_p<const CYCLES_PER_US: u32>( | ||
| timer: &Timer<CYCLES_PER_US>, | ||
| mut p: impl FnMut() -> bool, | ||
| timeout: MicrosDurationU32, | ||
| ) -> Result<MicrosDurationU32, ErrorTimedOut> { | ||
| let before = timer.now(); | ||
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| loop { | ||
| let passed_time = timer.now() - before; | ||
| if p() { | ||
| return Ok(passed_time); | ||
| } | ||
| if passed_time > timeout { | ||
| return Err(ErrorTimedOut); | ||
| } | ||
| } | ||
| } |
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I put up #61. Maybe that will help with some of these waiting operations?
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Adds some simple gpio self tests to be run on a nucleo-h533
See #50