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Initial firmware commit

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Signed-off-by: fly <merspieler@alwaysdata.com>
This commit is contained in:
fly 2024-02-11 20:20:39 +01:00
parent 5fc7c85184
commit 3c52c3e952
8 changed files with 511 additions and 0 deletions
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11
firmware/.cargo/config Normal file
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[target.thumbv7m-none-eabi]
runner = 'arm-none-eabi-gdb'
rustflags = [
"-C", "link-arg=-Tlink.x",
]
[build]
target = "thumbv7m-none-eabi"
[unstable]
build-std = ["core", "alloc"]

18
firmware/.gdbinit Normal file
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target remote :3333
monitor arm semihosting enable
# # send captured ITM to the file itm.fifo
# # (the microcontroller SWO pin must be connected to the programmer SWO pin)
# # 8000000 must match the core clock frequency
# monitor tpiu config internal itm.fifo uart off 8000000
# # OR: make the microcontroller SWO pin output compatible with UART (8N1)
# # 2000000 is the frequency of the SWO pin
# monitor tpiu config external uart off 8000000 2000000
# # enable ITM port 0
# monitor itm port 0 on
load
step

306
firmware/Cargo.lock generated Normal file
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
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dependencies = [
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34
firmware/Cargo.toml Normal file
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[package]
name = "firmware"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
embedded-hal = "0.2.7"
nb = "1"
cortex-m = "0.7.6"
cortex-m-rt = "0.7.1"
# Panic behaviour, see https://crates.io/keywords/panic-impl for alternatives
panic-halt = "0.2.0"
#stm32-usbd = "0.6.0"
usb-device = "0.2.9"
usbd-serial = "0.1.1"
ryu = "1.0.16"
[dependencies.stm32f1xx-hal]
version = "0.10.0"
features = ["rt", "stm32f103"]
[profile.dev]
codegen-units = 1
opt-level = "z"
[profile.dev.package."*"]
codegen-units = 1
opt-level = "z"
[profile.release]
# or "z"
opt-level = "z"

6
firmware/memory.x Normal file
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/* Linker script for the STM32F103C8T6 */
MEMORY
{
FLASH : ORIGIN = 0x08000000, LENGTH = 64K
RAM : ORIGIN = 0x20000000, LENGTH = 20K
}

90
firmware/src/brightness.rs Normal file
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#![deny(unsafe_code)]
#![no_main]
#![no_std]
use panic_halt as _;
use cortex_m_rt::entry;
use stm32f1xx_hal::{adc, pac, prelude::*, timer::{Channel, Tim2NoRemap}};
use stm32f1xx_hal::usb::{Peripheral, UsbBus};
use usb_device::prelude::*;
use usbd_serial::{SerialPort, USB_CLASS_CDC};
#[entry]
fn main() -> ! {
// ====================== general setup =================
// Acquire peripherals
let p = pac::Peripherals::take().unwrap();
let mut flash = p.FLASH.constrain();
let rcc = p.RCC.constrain();
// Setup GPIOA
let mut gpioa = p.GPIOA.split();
// configure clock
let clocks = rcc
.cfgr
.use_hse(16.MHz())
.sysclk(48.MHz())
.pclk1(24.MHz())
.freeze(&mut flash.acr);
// ====================== ADC setup =================
// Configure ADC clocks
// Default value is the slowest possible ADC clock: PCLK2 / 8. Meanwhile ADC
// clock is configurable. So its frequency may be tweaked to meet certain
// practical needs. User specified value is be approximated using supported
// prescaler values 2/4/6/8.
// let clocks = rcc.cfgr.adcclk(2.MHz()).freeze(&mut flash.acr);
// Setup ADC
let mut adc1 = adc::Adc::adc1(p.ADC1, clocks);
// Configure pa1 as an analog input
let mut ch0 = gpioa.pa1.into_analog(&mut gpioa.crl);
// ====================== PWM setup =================
let mut afio = p.AFIO.constrain();
let c1 = gpioa.pa0.into_alternate_push_pull(&mut gpioa.crl);
let mut pwm = p.TIM2.pwm_hz::<Tim2NoRemap, _, _>(c1, &mut afio.mapr, 1.kHz(), &clocks);
pwm.enable(Channel::C1);
let pwm_max = pwm.get_max_duty() as f32;
// ====================== USB setup =================
assert!(clocks.usbclk_valid());
let mut usb_dp = gpioa.pa12.into_push_pull_output(&mut gpioa.crh);
let usb = Peripheral {
usb: p.USB,
pin_dm: gpioa.pa11,
pin_dp: usb_dp.into_floating_input(&mut gpioa.crh),
};
let usb_bus = UsbBus::new(usb);
let mut serial = SerialPort::new(&usb_bus);
let mut usb_dev = UsbDeviceBuilder::new(&usb_bus, UsbVidPid(0x16c0, 0x27dd))
.manufacturer("FLC Meow!")
.product("Serial port")
.serial_number("01189998819991197253")
.device_class(USB_CLASS_CDC)
.build();
loop {
let data: u16 = adc1.read(&mut ch0).unwrap();
pwm.set_duty(Channel::C1, (pwm_max * ((0xffff as f32) / (data as f32))) as u16);
let mut buf = ryu::Buffer::new();
let ret = buf.format((0xffff as f32) / (data as f32)).as_bytes();
let mut write_offset = 0;
while write_offset < 8 {
match serial.write(&ret[write_offset..8]) {
Ok(len) if len > 0 => {
write_offset += len;
}
_ => {}
}
}
}
}

45
firmware/src/led.rs Normal file
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#![deny(unsafe_code)]
#![no_std]
#![no_main]
use panic_halt as _;
use nb::block;
use cortex_m_rt::entry;
use stm32f1xx_hal::{pac, prelude::*, timer::Timer};
#[entry]
fn main() -> ! {
// Get access to the core peripherals from the cortex-m crate
let cp = cortex_m::Peripherals::take().unwrap();
// Get access to the device specific peripherals from the peripheral access crate
let dp = pac::Peripherals::take().unwrap();
// Take ownership over the raw flash and rcc devices and convert them into the corresponding
// HAL structs
let mut flash = dp.FLASH.constrain();
let rcc = dp.RCC.constrain();
// Freeze the configuration of all the clocks in the system and store the frozen frequencies in
// `clocks`
let clocks = rcc.cfgr.freeze(&mut flash.acr);
// Acquire the GPIOC peripheral
let mut gpioa = dp.GPIOA.split();
// Configure gpio C pin 13 as a push-pull output. The `crh` register is passed to the function
// in order to configure the port. For pins 0-7, crl should be passed instead.
let mut led = gpioa.pa0.into_push_pull_output(&mut gpioa.crl);
// Configure the syst timer to trigger an update every second
let mut timer = Timer::syst(cp.SYST, &clocks).counter_hz();
timer.start(1.Hz()).unwrap();
// Wait for the timer to trigger an update and change the state of the LED
loop {
block!(timer.wait()).unwrap();
led.set_high();
block!(timer.wait()).unwrap();
led.set_low();
}
}

1
firmware/src/main.rs Symbolic link
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/home/fly/hw-stuff/112VU/firmware/src/brightness.rs