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Some small improvements

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This commit is contained in:
Marc 2025-04-25 00:55:03 +02:00
parent cd27a8a06b
commit 5d8b0e0327
1 changed files with 6 additions and 8 deletions
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14
embassy-rp/src/pio_programs/onewire.rs
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@ -27,8 +27,9 @@ impl<'a, PIO: Instance> PioOneWireProgram<'a, PIO> {
.origin 0
; Tick rate is 1 tick per 6us, so all delays should be calculated back to that
; All the instructions have a calculated delay in [], -1 for the instruction
; The delay also be 0 which will take 6us for the instruction itself
; All the instructions have a calculated delay XX in us as [(XX / CLK) - 1].
; The - 1 is for the instruction which also takes one clock cyle.
; The delay can be 0 which will result in just 6us for the instruction itself
.define CLK 6
; Write the reset block after trigger
@ -98,16 +99,13 @@ impl<'d, PIO: Instance, const SM: usize> PioOneWire<'d, PIO, SM> {
cfg.use_program(&program.prg, &[&pin]);
cfg.set_in_pins(&[&pin]);
cfg.shift_in = ShiftConfig {
auto_fill: true,
direction: ShiftDirection::Right,
threshold: 8,
};
cfg.shift_out = ShiftConfig {
let shift_cfg = ShiftConfig {
auto_fill: true,
direction: ShiftDirection::Right,
threshold: 8,
};
cfg.shift_in = shift_cfg;
cfg.shift_out = shift_cfg;
let divider = (clk_sys_freq() / 1000000) as u16 * 6;
cfg.clock_divider = divider.into();