Start on a usb-serial project
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70c013218a
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@ -491,9 +491,9 @@ checksum = "374d28ec25809ee0e23827c2ab573d729e293f281dfe393500e7ad618baa61c6"
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[[package]]
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name = "byteorder"
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version = "1.5.0"
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version = "1.4.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
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checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
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[[package]]
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name = "bytes"
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@ -3165,6 +3165,19 @@ dependencies = [
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"siphasher 0.3.11",
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]
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[[package]]
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name = "pi-usb-serial"
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version = "0.1.0"
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dependencies = [
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"az",
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"cortex-m",
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"cortex-m-rt",
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"embedded-alloc",
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"embedded-hal",
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"panic-halt",
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"rp-pico",
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]
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[[package]]
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name = "pin-project"
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version = "1.1.3"
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@ -30,5 +30,5 @@ members = [
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"sgf",
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"timezone-testing",
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"tree",
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"visions/server",
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"visions/server", "pi-usb-serial",
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]
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@ -0,0 +1,15 @@
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use std::env;
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use std::fs::File;
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use std::io::Write;
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use std::path::PathBuf;
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fn main() {
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let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
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File::create(out.join("memory.x"))
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.unwrap()
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.write_all(include_bytes!("memory.x"))
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.unwrap();
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println!("cargo:rustc-link-search={}", out.display());
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println!("cargo:rerun-if-changed=memory.x");
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}
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@ -0,0 +1,14 @@
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[build]
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target = "thumbv6m-none-eabi"
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[target.thumbv6m-none-eabi]
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rustflags = [
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"-C", "link-arg=--nmagic",
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"-C", "link-arg=-Tlink.x",
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"-C", "inline-threshold=5",
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"-C", "no-vectorize-loops",
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]
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[target.'cfg(all(target_arch = "arm", target_os = "none"))']
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runner = "elf2uf2-rs -d"
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@ -0,0 +1,15 @@
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[package]
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name = "pi-usb-serial"
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version = "0.1.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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az = { version = "1" }
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cortex-m-rt = { version = "0.7.3" }
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cortex-m = { version = "0.7.7" }
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embedded-alloc = { version = "0.5.1" }
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embedded-hal = { version = "0.2.7" }
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panic-halt = { version = "0.2.0" }
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rp-pico = { version = "0.8.0" }
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@ -0,0 +1,14 @@
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use std::env;
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use std::fs::File;
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use std::io::Write;
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use std::path::PathBuf;
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fn main() {
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let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
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File::create(out.join("memory.x"))
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.unwrap()
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.write_all(include_bytes!("memory.x"))
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.unwrap();
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println!("cargo:rustc-link-search={}", out.display());
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println!("cargo:rerun-if-changed=memory.x");
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}
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@ -0,0 +1,36 @@
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MEMORY {
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BOOT2 : ORIGIN = 0x10000000, LENGTH = 0x100
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FLASH : ORIGIN = 0x10000100, LENGTH = 2048K - 0x100
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/*
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* RAM consists of 4 banks, SRAM0-SRAM3, with a striped mapping.
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* This is usually good for performance, as it distributes load on
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* those banks evenly.
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*/
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RAM : ORIGIN = 0x20000000, LENGTH = 256K
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/*
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* RAM banks 4 and 5 use a direct mapping. They can be used to have
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* memory areas dedicated for some specific job, improving predictability
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* of access times.
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* Example: Separate stacks for core0 and core1.
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*/
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SRAM4 : ORIGIN = 0x20040000, LENGTH = 4k
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SRAM5 : ORIGIN = 0x20041000, LENGTH = 4k
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/* SRAM banks 0-3 can also be accessed directly. However, those ranges
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alias with the RAM mapping, above. So don't use them at the same time!
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SRAM0 : ORIGIN = 0x21000000, LENGTH = 64k
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SRAM1 : ORIGIN = 0x21010000, LENGTH = 64k
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SRAM2 : ORIGIN = 0x21020000, LENGTH = 64k
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SRAM3 : ORIGIN = 0x21030000, LENGTH = 64k
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*/
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}
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EXTERN(BOOT2_FIRMWARE)
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SECTIONS {
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/* ### Boot loader */
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.boot2 ORIGIN(BOOT2) :
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{
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KEEP(*(.boot2));
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} > BOOT2
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} INSERT BEFORE .text;
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@ -0,0 +1,59 @@
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//! This example test the RP Pico on board LED.
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//!
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//! It does not work with the RP Pico W board. See wifi_blinky.rs.
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#![no_std]
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#![no_main]
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use cortex_m::delay::Delay;
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use embedded_hal::digital::v2::OutputPin;
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use panic_halt as _;
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use rp_pico::{
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entry,
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hal::{
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clocks::init_clocks_and_plls,
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pac::{CorePeripherals, Peripherals},
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watchdog::Watchdog,
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Clock, Sio,
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},
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Pins,
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};
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#[entry]
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fn main() -> ! {
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let mut pac = Peripherals::take().unwrap();
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let core = CorePeripherals::take().unwrap();
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let sio = Sio::new(pac.SIO);
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let pins = Pins::new(
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pac.IO_BANK0,
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pac.PADS_BANK0,
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sio.gpio_bank0,
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&mut pac.RESETS,
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);
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let mut watchdog = Watchdog::new(pac.WATCHDOG);
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let clocks = init_clocks_and_plls(
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12_000_000u32,
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pac.XOSC,
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pac.CLOCKS,
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pac.PLL_SYS,
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pac.PLL_USB,
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&mut pac.RESETS,
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&mut watchdog,
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)
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.ok()
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.unwrap();
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let mut delay = Delay::new(core.SYST, clocks.system_clock.freq().to_Hz());
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let mut led_pin = pins.led.into_push_pull_output();
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let delay_ms = 1000;
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loop {
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let _ = led_pin.set_high();
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delay.delay_ms(delay_ms);
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let _ = led_pin.set_low();
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delay.delay_ms(delay_ms);
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}
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}
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