add rtic serial interrupt example

README.md

@@ -63,26 +63,27 @@ dual licensed as above, without any additional terms or conditions.
 
 Here follows a brief description of each demo for quick reference. For a more in-depth explanation on how the peripherals work please refer to the device reference manuals linked above, the readme for each demo and the comments in the demo code itself.
 
-| Demo                                                  | Category          | Description                                                           |
-|-------------------------------------------------------|-------------------|-----------------------------------------------------------------------|
-| [blinky-button-demo](./examples/blinky-button-demo/README.md)  | Hello World       | Blinky button demo                                                    |
-| [ccm-demo](./examples/ccm-demo/README.md)                      | Encryption        | Cipher block chaining - message authentication code (CCM) mode demo   |
-| [comp-demo](./examples/comp-demo/README.md)                    | Analog Pins       | Voltage comparator peripheral demo                                    |
-| [ecb-demo](./examples/ecb-demo/README.md)                      | Encryption        | AES electronic codebook mode encryption demo                          |
-| [gpiote-demo](./examples/gpiote-demo/README.md)                | Digital Pins      | General-Purpose Input Output Tasks and Events module demo             |
-| [i2s-controller-demo](./examples/i2s-controller-demo/README.md)| Audio             | Inter-IC Sound interface "controller mode (aka master mode)" demo     |
-| [i2s-peripheral-demo](./examples/i2s-peripheral-demo/README.md)| Audio             | Inter-IC Sound interface "peripheral mode (aka slave mode)" demo      |
-| [lpcomp-demo](./examples/lpcomp-demo/README.md)                | Analog Pins       | Low power voltage comparator demo                                     |
-| [ppi-demo](./examples/ppi-demo/README.md)                      | Channels          | Programmable peripheral interconnect (PPI) demo                       |
-| [pwm-demo](./examples/pwm-demo/README.md)                      | Digital Pins      | Pulse width modulation demo                                           |
-| [qdec-demo](./examples/qdec-demo/README.md)                    | Sensor Decoding   | Quadrature sensor decoder (QDEC) demo                                 |
-| [rtic-demo](./examples/rtic-demo/README.md)                    | Framework         | The Real-Time Interrupt-driven Concurrency framework demo             |
-| [spi-demo](./examples/spi-demo/README.md)                      | Digital Pins      | Serial peripheral interface master (SPIM) with EasyDMA demo           |
-| [spis-demo](./examples/spis-demo/README.md)                    | Digital Pins      | Serial peripheral interface slave (SPIS) demo                         |
-| [twi-ssd1306](./examples/twi-ssd1306/README.md)                | Digital Pins      | I2C compatible Two-Wire Interface with the SSD1306 OLED Display demo  |
-| [twim-demo](./examples/twim-demo/README.md)                    | Digital Pins      | I2C compatible Two-Wire Interface Master mode demo                    |
-| [twis-demo](./examples/twis-demo/README.md)                    | Digital Pins      | I2C compatible Two-Wire Interface Slave mode demo                     |
-| [wdt-demo](./examples/wdt-demo/README.md)                      | Timer             | Watchdog timer demo                                                   |
+| Demo                                                                | Category          | Description                                                           |
+|---------------------------------------------------------------------|-------------------|-----------------------------------------------------------------------|
+| [blinky-button-demo](./examples/blinky-button-demo/README.md)       | Hello World       | Blinky button demo                                                    |
+| [ccm-demo](./examples/ccm-demo/README.md)                           | Encryption        | Cipher block chaining - message authentication code (CCM) mode demo   |
+| [comp-demo](./examples/comp-demo/README.md)                         | Analog Pins       | Voltage comparator peripheral demo                                    |
+| [ecb-demo](./examples/ecb-demo/README.md)                           | Encryption        | AES electronic codebook mode encryption demo                          |
+| [gpiote-demo](./examples/gpiote-demo/README.md)                     | Digital Pins      | General-Purpose Input Output Tasks and Events module demo             |
+| [i2s-controller-demo](./examples/i2s-controller-demo/README.md)     | Audio             | Inter-IC Sound interface "controller mode (aka master mode)" demo     |
+| [i2s-peripheral-demo](./examples/i2s-peripheral-demo/README.md)     | Audio             | Inter-IC Sound interface "peripheral mode (aka slave mode)" demo      |
+| [lpcomp-demo](./examples/lpcomp-demo/README.md)                     | Analog Pins       | Low power voltage comparator demo                                     |
+| [ppi-demo](./examples/ppi-demo/README.md)                           | Channels          | Programmable peripheral interconnect (PPI) demo                       |
+| [pwm-demo](./examples/pwm-demo/README.md)                           | Digital Pins      | Pulse width modulation demo                                           |
+| [qdec-demo](./examples/qdec-demo/README.md)                         | Sensor Decoding   | Quadrature sensor decoder (QDEC) demo                                 |
+| [rtic-demo](./examples/rtic-demo/README.md)                         | Framework         | The Real-Time Interrupt-driven Concurrency framework demo             |
+| [rtic-serial-interrupt](./examples/rtic-serial-interrupt/README.md) | Interrupt         | Register for UARTE0 interrupt with RTIC                               |
+| [spi-demo](./examples/spi-demo/README.md)                           | Digital Pins      | Serial peripheral interface master (SPIM) with EasyDMA demo           |
+| [spis-demo](./examples/spis-demo/README.md)                         | Digital Pins      | Serial peripheral interface slave (SPIS) demo                         |
+| [twi-ssd1306](./examples/twi-ssd1306/README.md)                     | Digital Pins      | I2C compatible Two-Wire Interface with the SSD1306 OLED Display demo  |
+| [twim-demo](./examples/twim-demo/README.md)                         | Digital Pins      | I2C compatible Two-Wire Interface Master mode demo                    |
+| [twis-demo](./examples/twis-demo/README.md)                         | Digital Pins      | I2C compatible Two-Wire Interface Slave mode demo                     |
+| [wdt-demo](./examples/wdt-demo/README.md)                           | Timer             | Watchdog timer demo                                                   |
 
 
 ## Running the Examples

examples/rtic-serial-interrupt/.cargo/config

@@ -0,0 +1,2 @@
+[target.thumbv7em-none-eabihf]
+runner = "arm-none-eabi-gdb -tui"

examples/rtic-serial-interrupt/.gdbinit

@@ -0,0 +1,10 @@
+set remotetimeout 60000
+target remote :2331
+set arm force-mode thumb
+
+# Uncomment to enable semihosting, when necessary
+monitor semihosting enable
+
+layout split
+monitor reset
+load

examples/rtic-serial-interrupt/Cargo.toml

@@ -0,0 +1,45 @@
+[package]
+name = "rtic-serial-interrupt"
+version = "0.1.0"
+authors = ["René Rössler <rene@freshx.de>"]
+edition = "2018"
+publish = false
+
+[dependencies]
+cortex-m-rtic = { version = "0.5.9", default-features = false, features = [
+    "cortex-m-7",
+] }
+panic-semihosting = "0.5.3"
+cortex-m-semihosting = "0.3.5"
+
+[dependencies.nrf51-hal]
+path = "../../nrf51-hal"
+optional = true
+
+[dependencies.nrf52810-hal]
+path = "../../nrf52810-hal"
+optional = true
+
+[dependencies.nrf52811-hal]
+path = "../../nrf52811-hal"
+optional = true
+
+[dependencies.nrf52832-hal]
+path = "../../nrf52832-hal"
+optional = true
+
+[dependencies.nrf52833-hal]
+path = "../../nrf52833-hal"
+optional = true
+
+[dependencies.nrf52840-hal]
+path = "../../nrf52840-hal"
+optional = true
+
+[features]
+51 = ["nrf51-hal"]
+52810 = ["nrf52810-hal"]
+52811 = ["nrf52811-hal"]
+52832 = ["nrf52832-hal"]
+52833 = ["nrf52833-hal"]
+52840 = ["nrf52840-hal"]

examples/rtic-serial-interrupt/README.md

@@ -0,0 +1,3 @@
+# RTIC serial interrupt
+
+Receive an interrupt on serial input. Uses RTIC.

examples/rtic-serial-interrupt/src/main.rs

@@ -0,0 +1,80 @@
+#![no_main]
+#![no_std]
+
+#[allow(unused_imports)]
+use panic_semihosting;
+
+use cortex_m_semihosting::hprintln;
+use rtic::app;
+
+#[cfg(feature = "51")]
+use nrf51_hal as hal;
+
+#[cfg(feature = "52810")]
+use nrf52810_hal as hal;
+
+#[cfg(feature = "52811")]
+use nrf52811_hal as hal;
+
+#[cfg(feature = "52832")]
+use nrf52832_hal as hal;
+
+#[cfg(feature = "52833")]
+use nrf52833_hal as hal;
+
+#[cfg(feature = "52840")]
+use nrf52840_hal as hal;
+
+use crate::hal::{
+    gpio::{p0, Level},
+    pac::{Interrupt::UARTE0_UART0, UARTE0},
+    prelude::_embedded_hal_serial_Read,
+    uarte::{self, UarteRx},
+};
+
+#[app(device = crate::hal::pac, peripherals = true)]
+const APP: () = {
+    struct Resources {
+        serial0: UarteRx<UARTE0>,
+    }
+
+    #[init]
+    fn init(cx: init::Context) -> init::LateResources {
+        let p = cx.device;
+        let p0parts = p0::Parts::new(p.P0);
+
+        // enable UARTE0 endrx interrupt
+        p.UARTE0.intenset.modify(|_, w| w.endrx().set_bit());
+
+        static mut SERIAL0_TX_BUF: [u8; 1] = [0; 1];
+        static mut SERIAL0_RX_BUF: [u8; 1] = [0; 1];
+        let (_, serial0) = uarte::Uarte::new(
+            p.UARTE0,
+            uarte::Pins {
+                txd: p0parts.p0_00.into_push_pull_output(Level::High).degrade(),
+                rxd: p0parts.p0_01.into_floating_input().degrade(),
+                cts: None,
+                rts: None,
+            },
+            uarte::Parity::EXCLUDED,
+            uarte::Baudrate::BAUD115200,
+        )
+        .split(unsafe { &mut SERIAL0_TX_BUF }, unsafe {
+            &mut SERIAL0_RX_BUF
+        })
+        .expect("Could not split serial0");
+
+        // on NRF* serial interrupts are only called after the first read
+        rtic::pend(UARTE0_UART0);
+
+        init::LateResources { serial0 }
+    }
+
+    #[task(binds = UARTE0_UART0, resources = [serial0])]
+    fn uarte0_interrupt(cx: uarte0_interrupt::Context) {
+        hprintln!("uarte0 interrupt");
+        while let Ok(b) = cx.resources.serial0.read() {
+            hprintln!("Byte on serial0: {}", b);
+        }
+    }
+};