Matt Johnston 8f10e3638d rp/pio: Add onewire strong pullups, parasite power ...

DS18B20 sensors require a strong pullup to be applied for the duration
of the temperature conversion, within 10us of the command. The rp2xxx
pins have sufficient drive strength to use as the pullup (no external
mosfet needed).

Add a new write_bytes_pullup() that will apply the pullup after
bytes are written. Existing read_bytes()/write_bytes() has no change to
onewire timing.

A pio_onewire_parasite example reads multiple sensors individually,
applying the strong pullup.

2025-09-14 16:54:14 +08:00

..

.cargo

fix: revert unintended change

2024-01-10 10:02:26 +01:00

assets

rp/examples: add spi_display example

2021-07-20 10:06:57 +02:00

src/bin

rp/pio: Add onewire strong pullups, parasite power

2025-09-14 16:54:14 +08:00

build.rs

Replace rustflags with build.rs extra-link-args.

2021-11-07 23:52:11 +01:00

Cargo.toml

chore: prepare cyw43-pio release

2025-08-28 12:27:14 +02:00

memory.x

Add docs, touch all linker fragments

2023-11-19 23:10:11 +01:00