feat(demo): add flash demo

README.md

@@ -16,7 +16,7 @@ This crate is a working-in-progress and not ready for use.
 | HPM6200    | ✓   |      |         |        |      |      |     |     |     |     |     |     |     |
 | HPM5300    | ✓   | ✓    | ✓       | ✓      | ✓+   | ✓+   | ✓+  | ✓+  | ✓+  |     | ✓   | ✓   | ✓   |
 | HPM6800    | ✓   |      |         |        |      |      |     |     |     |     |     |     |     |
-| HPM6E00    | ✓   | ✓    | ✓       | ✓      | ✓+   | ✓+   | ✓+  | ✓+  | ✓+  |     |     |     |     |
+| HPM6E00    | ✓   | ✓    | ✓       | ✓      | ✓+   | ✓+   | ✓+  | ✓+  | ✓+  |     |     | ✓   | ✓   |
 
 - ✓: Implemented
 - ?: Requires demo verification
@@ -73,9 +73,10 @@ This crate is a working-in-progress and not ready for use.
   - [x] basic `mcan` wrapper
   - ~~[ ] async driver~~, better impl it in the App layer, see Mi motor demo
   - [ ] TSU management
-- [x] USB
+- [x] USB via embassy-usb
   - [x] Device
   - [ ] Host
+- [x] XPI NOR flash driver using embedded-storage
 
 ### Long term Plans
 

examples/hpm5300evk/src/bin/flash.rs

@@ -0,0 +1,93 @@
+#![no_main]
+#![no_std]
+#![feature(type_alias_impl_trait)]
+#![feature(impl_trait_in_assoc_type)]
+
+use defmt::println;
+use embassy_executor::Spawner;
+use embassy_time::Timer;
+use hal::gpio::{AnyPin, Flex, Pin};
+use hal::pac::MCHTMR;
+use {defmt_rtt as _, hpm_hal as hal};
+
+const BOARD_NAME: &str = "HPM5300EVK";
+
+#[embassy_executor::task(pool_size = 2)]
+async fn blink(pin: AnyPin) {
+    let mut led = Flex::new(pin);
+    led.set_as_output(Default::default());
+    led.set_high();
+
+    loop {
+        led.toggle();
+
+        Timer::after_millis(500).await;
+    }
+}
+
+const FLASH_SIZE: usize = 1 * 1024 * 1024;
+
+#[embassy_executor::main(entry = "hpm_hal::entry")]
+async fn main(spawner: Spawner) -> ! {
+    let mut p = hal::init(Default::default());
+
+    println!("==============================");
+    println!(" {} clock summary", BOARD_NAME);
+    println!("==============================");
+    println!("cpu0:\t\t {}Hz", hal::sysctl::clocks().cpu0.0);
+    println!("ahb:\t\t {}Hz", hal::sysctl::clocks().ahb.0);
+    println!("==============================");
+
+    println!("Hello, world!");
+
+    spawner.spawn(blink(p.PA23.degrade())).unwrap();
+    spawner.spawn(blink(p.PA10.degrade())).unwrap();
+
+    // 0xfcf90002, 0x00000006, 0x1000
+    // let config = hal::flash::Config {
+    //    header: 0xfcf90002,
+    //    option0: 0x00000006,
+    //    option1: 0x1000,
+    // };
+
+    let config = hal::flash::Config::from_rom_data(&mut p.XPI0).unwrap();
+
+    let mut flash: hal::flash::Flash<_, FLASH_SIZE> = hal::flash::Flash::new(p.XPI0, config).unwrap();
+
+    println!("flash init done");
+
+    let offset = (FLASH_SIZE - 256) as u32;
+
+    let buf = [0xAA; 256];
+
+    flash.blocking_write(offset, &buf).unwrap();
+
+    println!("write done");
+
+    let mut buf = [0; 256];
+
+    flash.blocking_read(offset, &mut buf).unwrap();
+
+    println!("read back: {:?}", buf);
+
+    flash.blocking_erase(offset, offset + 256).unwrap();
+
+    let mut buf = [0; 256];
+
+    flash.blocking_read(offset, &mut buf).unwrap();
+
+    println!("read back after erase: {:?}", buf);
+
+    loop {
+        Timer::after_millis(1000).await;
+
+        defmt::info!("tick {}", MCHTMR.mtime().read());
+    }
+}
+
+#[panic_handler]
+fn panic(info: &core::panic::PanicInfo) -> ! {
+    let _ = println!("\n\n\n{}", defmt::Debug2Format(info));
+
+    loop {}
+}