71 lines
1.7 KiB
Rust
71 lines
1.7 KiB
Rust
#![no_std]
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#![no_main]
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#![feature(type_alias_impl_trait)]
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#[path = "../example_common.rs"]
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mod example_common;
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use embassy::executor::Spawner;
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use embassy_nrf::gpio::{Level, Output, OutputDrive};
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use embassy_nrf::Peripherals;
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use embassy_nrf::{interrupt, spim};
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use example_common::*;
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#[embassy::main]
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async fn main(_spawner: Spawner, p: Peripherals) {
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info!("running!");
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let mut config = spim::Config::default();
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config.frequency = spim::Frequency::M16;
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let irq = interrupt::take!(SPIM3);
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let mut spim = spim::Spim::new(p.SPI3, irq, p.P0_29, p.P0_28, p.P0_30, config);
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let mut ncs = Output::new(p.P0_31, Level::High, OutputDrive::Standard);
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// Example on how to talk to an ENC28J60 chip
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// softreset
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cortex_m::asm::delay(10);
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ncs.set_low();
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cortex_m::asm::delay(5);
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let tx = [0xFF];
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unwrap!(spim.transfer(&mut [], &tx).await);
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cortex_m::asm::delay(10);
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ncs.set_high();
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cortex_m::asm::delay(100000);
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let mut rx = [0; 2];
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// read ESTAT
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cortex_m::asm::delay(5000);
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ncs.set_low();
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cortex_m::asm::delay(5000);
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let tx = [0b000_11101, 0];
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unwrap!(spim.transfer(&mut rx, &tx).await);
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cortex_m::asm::delay(5000);
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ncs.set_high();
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info!("estat: {=[?]}", rx);
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// Switch to bank 3
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cortex_m::asm::delay(10);
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ncs.set_low();
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cortex_m::asm::delay(5);
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let tx = [0b100_11111, 0b11];
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unwrap!(spim.transfer(&mut rx, &tx).await);
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cortex_m::asm::delay(10);
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ncs.set_high();
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// read EREVID
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cortex_m::asm::delay(10);
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ncs.set_low();
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cortex_m::asm::delay(5);
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let tx = [0b000_10010, 0];
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unwrap!(spim.transfer(&mut rx, &tx).await);
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cortex_m::asm::delay(10);
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ncs.set_high();
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info!("erevid: {=[?]}", rx);
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}
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