document probe-rs

Reviewed-on: #51

.cargo/def-config.toml

@@ -4,10 +4,9 @@
 # runner = "arm-none-eabi-gdb -q -x openocd.gdb"
 # runner = "gdb-multiarch -q -x openocd.gdb"
 # runner = "gdb -q -x openocd.gdb"
-runner = "gdb-multiarch -q -x jlink.gdb"
+# runner = "gdb-multiarch -q -x jlink.gdb"
 
-# Probe-rs is currently problematic: https://github.com/probe-rs/probe-rs/issues/2567
-# runner = "probe-rs run --chip VA108xx --chip-description-path ./scripts/VA108xx_Series.yaml"
+runner = "probe-rs run --chip VA108xx_RAM --protocol jtag"
 # runner = ["probe-rs", "run", "--chip", "$CHIP", "--log-format", "{L} {s}"]
 
 rustflags = [

README.md

@@ -60,14 +60,56 @@ You can then adapt the files in `.vscode` to your needs.
 You can use CLI or VS Code for flashing, running and debugging. In any case, take
 care of installing the pre-requisites first.
 
-### Pre-Requisites
+### Using CLI with probe-rs
+
+Install [probe-rs](https://github.com/probe-rs/probe-rs) first.
+
+You can use `probe-rs` to run the software and display RTT log output. However, debugging does not
+work yet.
+
+After installation, you can run the following command
+
+```sh
+probe-rs run --chip VA108xx_RAM --protocol jtag --example blinky
+```
+
+to flash and run the blinky program on the RAM. There is also a `VA108xx` chip target
+available for persistent flashing.
+
+Runner configuration avilable in the `.cargo/def-config.toml` file to use `probe-rs` for
+convenience.
+
+### Using VS Code
+
+Assuming a working debug connection to your VA108xx board, you can debug using VS Code with
+the [`Cortex-Debug` plugin](https://marketplace.visualstudio.com/items?itemName=marus25.cortex-debug).
+Please make sure that [`objdump-multiarch` and `nm-multiarch`](https://forums.raspberrypi.com/viewtopic.php?t=333146)
+are installed as well.
+
+Some sample configuration files for VS code were provided and can be used by running
+`cp -rT vscode .vscode` like specified above. After that, you can use `Run and Debug`
+to automatically rebuild and flash your application.
+
+If you would like to use a custom GDB application, you can specify the gdb binary in the following
+configuration variables in your `settings.json`:
+
+- `"cortex-debug.gdbPath"`
+- `"cortex-debug.gdbPath.linux"`
+- `"cortex-debug.gdbPath.windows"`
+- `"cortex-debug.gdbPath.osx"`
+
+The provided VS Code configurations also provide an integrated RTT logger, which you can access
+via the terminal at `RTT Ch:0 console`. In order for the RTT block address detection to
+work properly, `objdump-multiarch` and `nm-multiarch` need to be installed.
+
+### Using CLI with GDB and Segger J-Link Tools
+
+Install the following two tools first:
 
 1. [SEGGER J-Link tools](https://www.segger.com/downloads/jlink/) installed
 2. [gdb-multiarch](https://packages.debian.org/sid/gdb-multiarch) or similar
    cross-architecture debugger installed. All commands here assume `gdb-multiarch`.
 
-### Using CLI
-
 You can build the blinky example application with the following command
 
 ```sh
@@ -101,25 +143,8 @@ runner = "gdb-multiarch -q -x jlink/jlink.gdb"
 After that, you can simply use `cargo run --example blinky` to flash the blinky
 example.
 
-### Using VS Code
+### Using the RTT Viewer
 
-Assuming a working debug connection to your VA108xx board, you can debug using VS Code with
-the [`Cortex-Debug` plugin](https://marketplace.visualstudio.com/items?itemName=marus25.cortex-debug).
-Please make sure that [`objdump-multiarch` and `nm-multiarch`](https://forums.raspberrypi.com/viewtopic.php?t=333146)
-are installed as well.
-
-Some sample configuration files for VS code were provided and can be used by running
-`cp -rT vscode .vscode` like specified above. After that, you can use `Run and Debug`
-to automatically rebuild and flash your application.
-
-If you would like to use a custom GDB application, you can specify the gdb binary in the following
-configuration variables in your `settings.json`:
-
-- `"cortex-debug.gdbPath"`
-- `"cortex-debug.gdbPath.linux"`
-- `"cortex-debug.gdbPath.windows"`
-- `"cortex-debug.gdbPath.osx"`
-
-The provided VS Code configurations also provide an integrated RTT logger, which you can access
-via the terminal at `RTT Ch:0 console`. In order for the RTT block address detection to
-work properly, `objdump-multiarch` and `nm-multiarch` need to be installed.
+The Segger RTT viewer can be used to display log messages received from the target. The base
+address for the RTT block placement is 0x10000000. It is recommended to use a search range of
+0x1000 around that base address when using the RTT viewer.

va108xx-embassy/docs.sh

@@ -1,3 +1,3 @@
-#!/bin/sh
+#!/bin/bash
 export RUSTDOCFLAGS="--cfg docsrs --generate-link-to-definition -Z unstable-options"
 cargo +nightly doc --open

va108xx-embassy/src/lib.rs

@@ -33,8 +33,7 @@
 #![no_std]
 #![cfg_attr(docsrs, feature(doc_auto_cfg))]
 use core::cell::{Cell, RefCell};
-use critical_section::CriticalSection;
-use embassy_sync::blocking_mutex::CriticalSectionMutex as Mutex;
+use critical_section::{CriticalSection, Mutex};
 use portable_atomic::{AtomicU32, Ordering};
 
 use embassy_time_driver::{time_driver_impl, Driver, TICK_HZ};
@@ -46,7 +45,7 @@ use va108xx_hal::{
     clock::enable_peripheral_clock,
     enable_nvic_interrupt, pac,
     prelude::*,
-    timer::{enable_tim_clk, get_tim_raw, TimRegInterface},
+    timer::{enable_tim_clk, get_tim_raw, TimRegInterface, ValidTim},
     PeripheralSelect,
 };
 
@@ -116,12 +115,15 @@ pub mod embassy {
     /// This has to be called once at initialization time to initiate the time driver for
     /// embassy.
     #[cfg(feature = "irqs-in-lib")]
-    pub unsafe fn init(
+    pub unsafe fn init<
+        TimekeeperTim: TimRegInterface + ValidTim,
+        AlarmTim: TimRegInterface + ValidTim,
+    >(
         syscfg: &mut pac::Sysconfig,
         irqsel: &pac::Irqsel,
         sysclk: impl Into<Hertz>,
-        timekeeper_tim: impl TimRegInterface,
-        alarm_tim: impl TimRegInterface,
+        timekeeper_tim: TimekeeperTim,
+        alarm_tim: AlarmTim,
     ) {
         TIME_DRIVER.init(
             syscfg,
@@ -140,12 +142,15 @@ pub mod embassy {
     ///
     /// This has to be called once at initialization time to initiate the time driver for
     /// embassy.
-    pub unsafe fn init_with_custom_irqs(
+    pub unsafe fn init_with_custom_irqs<
+        TimekeeperTim: TimRegInterface + ValidTim,
+        AlarmTim: TimRegInterface + ValidTim,
+    >(
         syscfg: &mut pac::Sysconfig,
         irqsel: &pac::Irqsel,
         sysclk: impl Into<Hertz>,
-        timekeeper_tim: impl TimRegInterface,
-        alarm_tim: impl TimRegInterface,
+        timekeeper_tim: TimekeeperTim,
+        alarm_tim: AlarmTim,
         timekeeper_irq: pac::Interrupt,
         alarm_irq: pac::Interrupt,
     ) {
@@ -188,21 +193,21 @@ pub struct TimerDriver {
 
 impl TimerDriver {
     #[allow(clippy::too_many_arguments)]
-    fn init(
+    fn init<TimekeeperTim: TimRegInterface + ValidTim, AlarmTim: TimRegInterface + ValidTim>(
         &self,
         syscfg: &mut pac::Sysconfig,
         irqsel: &pac::Irqsel,
         sysclk: impl Into<Hertz>,
-        timekeeper_tim: impl TimRegInterface,
-        alarm_tim: impl TimRegInterface,
+        timekeeper_tim: TimekeeperTim,
+        alarm_tim: AlarmTim,
         timekeeper_irq: pac::Interrupt,
         alarm_irq: pac::Interrupt,
     ) {
-        if ALARM_TIM.get().is_some() {
+        if ALARM_TIM.get().is_some() || TIMEKEEPER_TIM.get().is_some() {
             return;
         }
-        ALARM_TIM.set(alarm_tim.tim_id()).ok();
-        TIMEKEEPER_TIM.set(timekeeper_tim.tim_id()).ok();
+        ALARM_TIM.set(AlarmTim::TIM_ID).ok();
+        TIMEKEEPER_TIM.set(TimekeeperTim::TIM_ID).ok();
         enable_peripheral_clock(syscfg, PeripheralSelect::Irqsel);
         enable_tim_clk(syscfg, timekeeper_tim.tim_id());
         let timekeeper_reg_block = timekeeper_tim.reg_block();