vorago-reb1/examples/adxl343-accelerometer.rs
Robin Mueller 2195a9f678
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bump to v0.3.2, update HAL dependency
- Adapted code accordingly
2021-12-20 23:55:03 +01:00

74 lines
2.1 KiB
Rust

//! ADXL343 accelerometer example
//!
//! Please note that the default REB1 board is not populated with the ADXL343BCCZ-RL7.
//! To use this example, this chip needs to be soldered onto the board.
#![no_main]
#![no_std]
use cortex_m_rt::entry;
use embedded_hal::spi;
use panic_rtt_target as _;
use rtt_target::{rprintln, rtt_init_print};
use va108xx_hal::{
gpio::PinsA,
pac,
prelude::*,
spi::{Spi, SpiConfig, TransferConfig},
timer::set_up_ms_delay_provider,
};
const READ_MASK: u8 = 1 << 7;
const _MULTI_BYTE_MASK: u8 = 1 << 6;
const DEVID_REG: u8 = 0x00;
const POWER_CTL_REG: u8 = 0x2D;
const PWR_MEASUREMENT_MODE_MASK: u8 = 1 << 3;
#[entry]
fn main() -> ! {
rtt_init_print!();
rprintln!("-- Vorago Accelerometer Example --");
let mut dp = pac::Peripherals::take().unwrap();
let mut delay = set_up_ms_delay_provider(&mut dp.SYSCONFIG, 50.mhz(), dp.TIM0);
let pinsa = PinsA::new(&mut dp.SYSCONFIG, None, dp.PORTA);
let spi_cfg = SpiConfig::default();
let (sck, mosi, miso) = (
pinsa.pa20.into_funsel_2(),
pinsa.pa19.into_funsel_2(),
pinsa.pa18.into_funsel_2(),
);
let cs_pin = pinsa.pa16.into_funsel_2();
// Need to set the ADC chip select low
let mut adc_cs = pinsa.pa17.into_push_pull_output();
adc_cs
.set_high()
.expect("Setting ADC chip select high failed");
let transfer_cfg = TransferConfig::new(1.mhz(), spi::MODE_3, Some(cs_pin), false, true);
let mut spi = Spi::spib(
dp.SPIB,
(sck, miso, mosi),
50.mhz(),
spi_cfg,
Some(&mut dp.SYSCONFIG),
Some(&transfer_cfg.downgrade()),
);
let mut send_buf: [u8; 3] = [0; 3];
send_buf[0] = READ_MASK | DEVID_REG;
let reply = spi
.transfer(&mut send_buf[0..2])
.expect("Reading DEVID register failed");
rprintln!("DEVID register: {}", reply[1]);
send_buf[0] = POWER_CTL_REG;
send_buf[1] = PWR_MEASUREMENT_MODE_MASK;
spi.write(&send_buf[0..2])
.expect("Enabling measurement mode failed");
loop {
delay.delay_ms(500_u16);
unimplemented!("Not implemented for now, is not populated on the board..");
}
}