New VA108xx Rust workspace structure + dependency updates

- The workspace is now a monorepo without submodules. The HAL, PAC and BSP
  are integrated directly
- Update all dependencies: embedded-hal v1 and RTIC v2

vorago-reb1/examples/adxl343-accelerometer.rs

@@ -0,0 +1,78 @@
+//! 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);
+    }
+}