firmware for my Touchscreen E-Paper Input Module for Framework Laptop 16
fw16-epd-main: read flash serial number
+27
+1
Cargo.toml
+1
Cargo.toml
+1
fw16-epd-main/Cargo.toml
+1
fw16-epd-main/Cargo.toml
+25
fw16-epd-main/src/main.rs
+25
fw16-epd-main/src/main.rs
···
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90
&mut watchdog,
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).unwrap();
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+
// Read flash unique ID
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cortex_m::interrupt::disable();
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let mut id = [0u8; 8];
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unsafe { rp2040_flash::flash::flash_unique_id(&mut id, true) };
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let mut id = u64::from_be_bytes(id);
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info!("Framework 16 EPD firmware version {}, serial no. {:x}", env!("CARGO_PKG_VERSION"), id);
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let mut serial_no = [0u8; 16];
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+
for c in serial_no.iter_mut().rev() {
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let nibble = (id & 0x0f) as u8;
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*c = match nibble {
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0x0..=0x9 => b'0' + nibble,
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0xa..=0xf => b'A' + nibble - 0xa,
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_ => unreachable!(),
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+
};
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id >>= 4;
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}
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// Safety: this function never returns, so we should be fine right?
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let serial_no: &'static str = unsafe { &*&raw const *core::str::from_utf8(&serial_no).unwrap() };
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unsafe { cortex_m::interrupt::enable() };
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+
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let mut sio = Sio::new(pac.SIO);
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let pins = Pins::new(
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pac.IO_BANK0,
···
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GLOBAL_USB_BUS = Some(usb_bus);
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}
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+
// Safety: These are only accessed within this interrupt handler, or in main() before the
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// interrupt is enabled.
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#[allow(static_mut_refs)]
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let bus_ref = unsafe { GLOBAL_USB_BUS.as_ref().unwrap() };
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···
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.strings(&[StringDescriptors::default()
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.manufacturer("arthomnix")
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.product("Touchscreen EPD Input Module for Framework 16")
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+
.serial_number(serial_no)
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])
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.unwrap()
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.device_class(usbd_serial::USB_CLASS_CDC)
···
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trace!("USBCTRL_IRQ");
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+
// Safety: These are only accessed within this interrupt handler, or in main() before the
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+
// interrupt is enabled.
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#[allow(static_mut_refs)]
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let usb_dev = unsafe { GLOBAL_USB_DEVICE.as_mut().unwrap() };
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#[allow(static_mut_refs)]