56 lines
1.8 KiB
Rust
56 lines
1.8 KiB
Rust
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#![no_main]
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#![no_std]
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use cortex_m_rt::entry;
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use embedded_hal::spi::{SpiBus, MODE_0};
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use embedded_hal_bus::spi::ExclusiveDevice;
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use panic_rtt_target as _;
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use rtt_target::{rprintln, rtt_init_print};
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use va108xx_hal::{
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pac,
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spi::{RomCs, RomMiso, RomMosi, RomSck, Spi, SpiClkConfig, SpiConfig, TransferConfigWithHwcs},
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time::Hertz,
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};
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use vorago_reb1::m95m01::{regs::RDSR, M95M01};
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const CLOCK_FREQ: Hertz = Hertz::from_raw(50_000_000);
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#[entry]
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fn main() -> ! {
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rtt_init_print!();
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rprintln!("-- VA108XX REB1 NVM example --");
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let mut dp = pac::Peripherals::take().unwrap();
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let cp = cortex_m::Peripherals::take().unwrap();
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let mut spi = Spi::new(
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&mut dp.sysconfig,
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CLOCK_FREQ,
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dp.spic,
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(RomSck, RomMiso, RomMosi),
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// These values are taken from the vorago bootloader app, don't want to experiment here..
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SpiConfig::default().clk_cfg(SpiClkConfig::new(2, 4)),
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);
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let mut read_buf: [u8; 2] = [0; 2];
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spi.transfer(&mut read_buf, &[RDSR, 0]);
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rprintln!("read buf {:?}", read_buf);
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let mut nvm =
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M95M01::new(ExclusiveDevice::new_no_delay(spi, dummy_pin::DummyPin::new_low()).unwrap())
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.expect("creating NVM structure failed");
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let status_reg = nvm.read_status_reg().expect("reading status reg failed");
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rprintln!("status reg: {:?}", status_reg);
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if status_reg.zero_segment() == 0b111 {
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panic!("status register unexpected values");
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}
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let mut read_buf: [u8; 16] = [0; 16];
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nvm.read(0x4000, &mut read_buf[0..4])
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.expect("reading NVM failed");
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rprintln!("NVM address 0x4000: {:x?}", &read_buf[0..4]);
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let write_buf: [u8; 4] = [1, 2, 3, 4];
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nvm.write(0x4000, &write_buf).unwrap();
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nvm.read(0x4000, &mut read_buf[0..4]).unwrap();
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assert_eq!(&read_buf[0..4], write_buf);
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loop {}
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}
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