79 lines
2.2 KiB
Rust
79 lines
2.2 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::SpiBus;
|
||
|
|
use embedded_hal::{delay::DelayNs, digital::OutputPin};
|
||
|
|
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(),
|
||
|
|
embedded_hal::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 tx_rx_buf: [u8; 3] = [0; 3];
|
||
|
|
tx_rx_buf[0] = READ_MASK | DEVID_REG;
|
||
|
|
spi.transfer_in_place(&mut tx_rx_buf[0..2])
|
||
|
|
.expect("Reading DEVID register failed");
|
||
|
|
rprintln!("DEVID register: {}", tx_rx_buf[1]);
|
||
|
|
|
||
|
|
tx_rx_buf[0] = POWER_CTL_REG;
|
||
|
|
tx_rx_buf[1] = PWR_MEASUREMENT_MODE_MASK;
|
||
|
|
spi.write(&tx_rx_buf[0..2])
|
||
|
|
.expect("Enabling measurement mode failed");
|
||
|
|
|
||
|
|
loop {
|
||
|
|
delay.delay_ms(500);
|
||
|
|
}
|
||
|
|
}
|