Finished flashloader and bootloader implementation

vorago-reb1/examples/nvm.rs

@@ -1,13 +1,12 @@
 //! Example application which interfaces with the boot EEPROM.
 #![no_main]
 #![no_std]
-
 use cortex_m_rt::entry;
 use embedded_hal::delay::DelayNs;
 use panic_rtt_target as _;
 use rtt_target::{rprintln, rtt_init_print};
-use va108xx_hal::{pac, pwm::CountDownTimer, time::Hertz};
-use vorago_reb1::m95m01::M95M01;
+use va108xx_hal::{pac, time::Hertz, timer::CountdownTimer};
+use vorago_reb1::m95m01::{M95M01, PAGE_SIZE};
 
 const CLOCK_FREQ: Hertz = Hertz::from_raw(50_000_000);
 
@@ -18,46 +17,39 @@ fn main() -> ! {
 
     let mut dp = pac::Peripherals::take().unwrap();
 
-    let mut timer = CountDownTimer::new(&mut dp.sysconfig, CLOCK_FREQ, dp.tim0);
+    let mut timer = CountdownTimer::new(&mut dp.sysconfig, CLOCK_FREQ, dp.tim0);
     let mut nvm = M95M01::new(&mut dp.sysconfig, CLOCK_FREQ, dp.spic);
     let status_reg = nvm.read_status_reg().expect("reading status reg failed");
     if status_reg.zero_segment() == 0b111 {
         panic!("status register unexpected values");
     }
 
-    let mut orig_content: [u8; 16] = [0; 16];
-    let mut read_buf: [u8; 16] = [0; 16];
-    let write_buf: [u8; 16] = [0; 16];
-    for (idx, val) in read_buf.iter_mut().enumerate() {
-        *val = idx as u8;
+    let mut orig_content: [u8; 512] = [0; 512];
+    let mut read_buf: [u8; 512] = [0; 512];
+    let mut write_buf: [u8; 512] = [0; 512];
+    for (idx, val) in write_buf.iter_mut().enumerate() {
+        *val = ((idx as u16) % (u8::MAX as u16 + 1)) as u8;
     }
-    nvm.read(0x4000, &mut orig_content).unwrap();
+    nvm.read(0, &mut orig_content).unwrap();
 
-    // One byte write and read.
-    nvm.write(0x4000, &write_buf[0..1]).unwrap();
-    nvm.read(0x4000, &mut read_buf[0..1]).unwrap();
-    assert_eq!(write_buf[0], read_buf[0]);
-    read_buf.fill(0);
+    nvm.write_page(0, 0, &[1, 2, 3, 4]).unwrap();
+    nvm.read(0, &mut read_buf[0..4]).unwrap();
 
-    // Four bytes write and read.
-    nvm.write(0x4000, &write_buf[0..4]).unwrap();
-    nvm.read(0x4000, &mut read_buf[0..4]).unwrap();
-    assert_eq!(&read_buf[0..4], &write_buf[0..4]);
-    read_buf.fill(0);
-
-    // Full sixteen bytes
-    nvm.write(0x4000, &write_buf).unwrap();
-    nvm.read(0x4000, &mut read_buf).unwrap();
+    // Read the whole content. Write will internally be split across two page bounaries.
+    nvm.write(0, &write_buf).unwrap();
+    // Memory can be read in one go.
+    nvm.read(0, &mut read_buf).unwrap();
     assert_eq!(&read_buf, &write_buf);
+    assert!(nvm.verify(0, &write_buf).unwrap());
     read_buf.fill(0);
 
-    // 3 bytes
-    nvm.write(0x4000, &write_buf[0..3]).unwrap();
-    nvm.read(0x4000, &mut read_buf[0..3]).unwrap();
-    assert_eq!(&read_buf[0..3], &write_buf[0..3]);
+    // Write along page boundary
+    nvm.write(PAGE_SIZE - 2, &write_buf[0..8]).unwrap();
+    nvm.read(PAGE_SIZE - 2, &mut read_buf[0..8]).unwrap();
+    assert_eq!(&read_buf[0..8], &write_buf[0..8]);
+    assert!(nvm.verify(PAGE_SIZE - 2, &write_buf[0..8]).unwrap());
 
-    // Write back original content.
-    nvm.write(0x4000, &orig_content).unwrap();
+    nvm.write(0, &orig_content).unwrap();
     loop {
         timer.delay_ms(500);
     }