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Removed the cyw43-pio overclock feature

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This commit is contained in:
Bailey Townsend 2024-12-28 17:31:14 -06:00
parent 388103275e
commit 147fd60255
4 changed files with 46 additions and 50 deletions
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2
ci.sh
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@ -178,7 +178,7 @@ cargo batch \
--- build --release --manifest-path cyw43/Cargo.toml --target thumbv6m-none-eabi --features 'log,firmware-logs,bluetooth' \
--- build --release --manifest-path cyw43/Cargo.toml --target thumbv6m-none-eabi --features 'defmt,firmware-logs,bluetooth' \
--- build --release --manifest-path cyw43-pio/Cargo.toml --target thumbv6m-none-eabi --features 'embassy-rp/rp2040' \
--- build --release --manifest-path cyw43-pio/Cargo.toml --target thumbv6m-none-eabi --features 'embassy-rp/rp2040,overclock' \
--- build --release --manifest-path cyw43-pio/Cargo.toml --target thumbv6m-none-eabi --features 'embassy-rp/rp2040' \
--- build --release --manifest-path embassy-boot-nrf/Cargo.toml --target thumbv7em-none-eabi --features embassy-nrf/nrf52840 \
--- build --release --manifest-path embassy-boot-nrf/Cargo.toml --target thumbv8m.main-none-eabihf --features embassy-nrf/nrf9160-ns \
--- build --release --manifest-path embassy-boot-nrf/Cargo.toml --target thumbv8m.main-none-eabihf --features embassy-nrf/nrf9120-ns \

5
cyw43-pio/Cargo.toml
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@ -9,11 +9,6 @@ license = "MIT OR Apache-2.0"
repository = "https://github.com/embassy-rs/embassy"
documentation = "https://docs.embassy.dev/cyw43-pio"
[features]
# If disabled, SPI runs at 31.25MHz
# If enabled, SPI runs at 62.5MHz, which is 25% higher than 50Mhz which is the maximum according to the CYW43439 datasheet.
overclock = []
[dependencies]
cyw43 = { version = "0.2.0", path = "../cyw43" }
embassy-rp = { version = "0.2.0", path = "../embassy-rp" }

87
cyw43-pio/src/lib.rs
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@ -40,7 +40,6 @@ pub const OVERCLOCK_CLOCK_DIVIDER: FixedU32<U8> = FixedU32::from_bits(0x0100);
/// The clock divider for the RM2 module. Found to be needed for the Pimoroni Pico Plus 2 W,
/// Pico Plus 2 Non w with the RM2 breakout module, and the Pico 2 with the RM2 breakout module.
/// Does not work with the feature "overclock".
pub const RM2_CLOCK_DIVIDER: FixedU32<U8> = FixedU32::from_bits(0x0300);
impl<'d, PIO, const SM: usize, DMA> PioSpi<'d, PIO, SM, DMA>
@ -63,53 +62,56 @@ where
DIO: PioPin,
CLK: PioPin,
{
#[cfg(feature = "overclock")]
let program = pio_asm!(
".side_set 1"
let loaded_program = if clock_divider < DEFAULT_CLOCK_DIVIDER {
let overclock_program = pio_asm!(
".side_set 1"
".wrap_target"
// write out x-1 bits
"lp:"
"out pins, 1 side 0"
"jmp x-- lp side 1"
// switch directions
"set pindirs, 0 side 0"
"nop side 1" // necessary for clkdiv=1.
"nop side 0"
// read in y-1 bits
"lp2:"
"in pins, 1 side 1"
"jmp y-- lp2 side 0"
".wrap_target"
// write out x-1 bits
"lp:"
"out pins, 1 side 0"
"jmp x-- lp side 1"
// switch directions
"set pindirs, 0 side 0"
"nop side 1" // necessary for clkdiv=1.
"nop side 0"
// read in y-1 bits
"lp2:"
"in pins, 1 side 1"
"jmp y-- lp2 side 0"
// wait for event and irq host
"wait 1 pin 0 side 0"
"irq 0 side 0"
// wait for event and irq host
"wait 1 pin 0 side 0"
"irq 0 side 0"
".wrap"
);
#[cfg(not(feature = "overclock"))]
let program = pio_asm!(
".side_set 1"
".wrap"
);
common.load_program(&overclock_program.program)
} else {
let default_program = pio_asm!(
".side_set 1"
".wrap_target"
// write out x-1 bits
"lp:"
"out pins, 1 side 0"
"jmp x-- lp side 1"
// switch directions
"set pindirs, 0 side 0"
"nop side 0"
// read in y-1 bits
"lp2:"
"in pins, 1 side 1"
"jmp y-- lp2 side 0"
".wrap_target"
// write out x-1 bits
"lp:"
"out pins, 1 side 0"
"jmp x-- lp side 1"
// switch directions
"set pindirs, 0 side 0"
"nop side 0"
// read in y-1 bits
"lp2:"
"in pins, 1 side 1"
"jmp y-- lp2 side 0"
// wait for event and irq host
"wait 1 pin 0 side 0"
"irq 0 side 0"
// wait for event and irq host
"wait 1 pin 0 side 0"
"irq 0 side 0"
".wrap"
);
".wrap"
);
common.load_program(&default_program.program)
};
let mut pin_io: embassy_rp::pio::Pin<PIO> = common.make_pio_pin(dio);
pin_io.set_pull(Pull::None);
@ -123,7 +125,6 @@ where
pin_clk.set_slew_rate(SlewRate::Fast);
let mut cfg = Config::default();
let loaded_program = common.load_program(&program.program);
cfg.use_program(&loaded_program, &[&pin_clk]);
cfg.set_out_pins(&[&pin_io]);
cfg.set_in_pins(&[&pin_io]);

2
tests/rp/Cargo.toml
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@ -16,7 +16,7 @@ embassy-net = { version = "0.5.0", path = "../../embassy-net", features = ["defm
embassy-net-wiznet = { version = "0.1.0", path = "../../embassy-net-wiznet", features = ["defmt"] }
embassy-embedded-hal = { version = "0.2.0", path = "../../embassy-embedded-hal/"}
cyw43 = { path = "../../cyw43", features = ["defmt", "firmware-logs"] }
cyw43-pio = { path = "../../cyw43-pio", features = ["defmt", "overclock"] }
cyw43-pio = { path = "../../cyw43-pio", features = ["defmt"] }
perf-client = { path = "../perf-client" }
defmt = "0.3.0"