fw-rust: Start to use the avr-eeprom crate
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Start to use the avr-eeprom crate to handle values residing inside the EEPROM.
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3 changed files with 14 additions and 9 deletions
6
firmware/rust/Cargo.lock
generated
6
firmware/rust/Cargo.lock
generated
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@ -32,6 +32,11 @@ dependencies = [
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"syn",
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]
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[[package]]
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name = "avr-eeprom"
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version = "0.1.0-dev"
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source = "git+https://git.onders.org/finga/avr-eeprom-rs.git?branch=main#d7653567fb2f7ca7bf5100a44c233015a6e03e51"
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[[package]]
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name = "avr-hal-generic"
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version = "0.1.0"
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@ -67,6 +72,7 @@ version = "0.1.0-dev"
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dependencies = [
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"atmega-hal",
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"avr-device",
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"avr-eeprom",
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"embedded-hal",
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"nb 1.0.0",
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"panic-halt",
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@ -15,6 +15,7 @@ panic-halt = "0.2"
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nb = "1.0"
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embedded-hal = "0.2"
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avr-device = { version = "0.3", features = ["atmega328p"] }
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avr-eeprom = { git = "https://git.onders.org/finga/avr-eeprom-rs.git", branch = "main" }
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[dependencies.atmega-hal]
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git = "https://github.com/rahix/avr-hal"
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@ -9,6 +9,7 @@ use atmega_hal::{
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Peripherals,
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};
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use avr_device::interrupt;
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use avr_eeprom::eeprom;
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use embedded_hal::{
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blocking::delay::DelayMs,
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spi::{FullDuplex, Mode, Phase, Polarity},
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@ -16,13 +17,10 @@ use embedded_hal::{
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use nb::block;
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use panic_halt as _;
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#[used]
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#[link_section = ".eeprom"]
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static CONTRAST: u8 = 8;
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#[used]
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#[link_section = ".eeprom"]
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static BACKLIGHT: u8 = 1;
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eeprom! {
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static eeprom CONTRAST: u8 = 8;
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static eeprom BACKLIGHT: u8 = 1;
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}
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// TODO: Use https://github.com/rust-lang/rust/issues/85077 when stabilized
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static SACRED_CHAO: [[u8; 40]; 5] = [
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@ -82,7 +80,7 @@ fn main() -> ! {
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// Write address into eeprom address register
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eeprom
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.eear
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.write(|w| unsafe { w.bits(&CONTRAST as *const u8 as u16) });
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.write(|w| unsafe { w.bits(CONTRAST.ptr() as u16) });
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// Start to read from eeprom by setting EERE
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eeprom.eecr.write(|w| w.eere().set_bit());
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// Return data from eeprom data register
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@ -95,7 +93,7 @@ fn main() -> ! {
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// Write address into eeprom address register
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eeprom
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.eear
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.write(|w| unsafe { w.bits(&BACKLIGHT as *const u8 as u16) });
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.write(|w| unsafe { w.bits(BACKLIGHT.ptr() as u16) });
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// Start to read from eeprom by setting EERE
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eeprom.eecr.write(|w| w.eere().set_bit());
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// Return data from eeprom data register
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