From a6c419d096bf2a4d14243fe90a7e2c1881b33fdf Mon Sep 17 00:00:00 2001
From: Bruno Bousquet <21108660+brunob45@users.noreply.github.com>
Date: Tue, 28 May 2024 23:12:08 -0400
Subject: [PATCH] add f103 example for input_capture

---
 examples/stm32f1/.vscode/launch.json          | 33 +++++++++++++++
 examples/stm32f1/.vscode/tasks.json           | 21 ++++++++++
 examples/stm32f1/openocd.cfg                  |  5 +++
 examples/stm32f1/openocd.gdb                  | 40 +++++++++++++++++++
 .../src/bin/input_capture.rs}                 |  8 ++--
 5 files changed, 103 insertions(+), 4 deletions(-)
 create mode 100644 examples/stm32f1/.vscode/launch.json
 create mode 100644 examples/stm32f1/.vscode/tasks.json
 create mode 100644 examples/stm32f1/openocd.cfg
 create mode 100644 examples/stm32f1/openocd.gdb
 rename examples/{stm32f4/src/bin/pwm_input.rs => stm32f1/src/bin/input_capture.rs} (86%)

diff --git a/examples/stm32f1/.vscode/launch.json b/examples/stm32f1/.vscode/launch.json
new file mode 100644
index 000000000..7d1504a39
--- /dev/null
+++ b/examples/stm32f1/.vscode/launch.json
@@ -0,0 +1,33 @@
+{
+    /* 
+     * Requires the Rust Language Server (rust-analyzer) and Cortex-Debug extensions
+     * https://marketplace.visualstudio.com/items?itemName=rust-lang.rust-analyzer
+     * https://marketplace.visualstudio.com/items?itemName=marus25.cortex-debug
+     */
+    "version": "0.2.0",
+    "configurations": [
+        {
+            /* Configuration for the STM32F446 Discovery board */
+            "type": "cortex-debug",
+            "request": "launch",
+            "name": "Debug (OpenOCD)",
+            "servertype": "openocd",
+            "cwd": "${workspaceRoot}",
+            "preLaunchTask": "Cargo Build (debug)",
+            "runToEntryPoint": "main",
+            "executable": "./target/thumbv7m-none-eabi/debug/input_capture",
+            /* Run `cargo build --example itm` and uncomment this line to run itm example */
+            // "executable": "./target/thumbv7em-none-eabihf/debug/examples/itm",
+            "device": "STM32F103TB",
+            "configFiles": [
+                "interface/stlink.cfg",
+                "target/stm32f1x.cfg"
+            ],
+            "postLaunchCommands": [
+                "monitor arm semihosting enable"
+            ],
+            "postRestartCommands": [],
+            "postResetCommands": [],
+        }
+    ]
+}
\ No newline at end of file
diff --git a/examples/stm32f1/.vscode/tasks.json b/examples/stm32f1/.vscode/tasks.json
new file mode 100644
index 000000000..e153722da
--- /dev/null
+++ b/examples/stm32f1/.vscode/tasks.json
@@ -0,0 +1,21 @@
+{
+	"version": "2.0.0",
+	"tasks": [
+		{
+			"type": "cargo",
+			"command": "build",
+			"problemMatcher": [
+				"$rustc"
+			],
+			"args": [
+				"--bin",
+				"input_capture"
+			],
+			"group": {
+				"kind": "build",
+				"isDefault": true
+			},
+			"label": "Cargo Build (debug)",
+		}
+	]
+}
\ No newline at end of file
diff --git a/examples/stm32f1/openocd.cfg b/examples/stm32f1/openocd.cfg
new file mode 100644
index 000000000..0325cd651
--- /dev/null
+++ b/examples/stm32f1/openocd.cfg
@@ -0,0 +1,5 @@
+# Sample OpenOCD configuration for the STM32F3DISCOVERY development board
+
+source [find interface/stlink.cfg]
+
+source [find target/stm32f1x.cfg]
diff --git a/examples/stm32f1/openocd.gdb b/examples/stm32f1/openocd.gdb
new file mode 100644
index 000000000..7795319fb
--- /dev/null
+++ b/examples/stm32f1/openocd.gdb
@@ -0,0 +1,40 @@
+target extended-remote :3333
+
+# print demangled symbols
+set print asm-demangle on
+
+# set backtrace limit to not have infinite backtrace loops
+set backtrace limit 32
+
+# detect unhandled exceptions, hard faults and panics
+break DefaultHandler
+break HardFault
+break rust_begin_unwind
+# # run the next few lines so the panic message is printed immediately
+# # the number needs to be adjusted for your panic handler
+# commands $bpnum
+# next 4
+# end
+
+# *try* to stop at the user entry point (it might be gone due to inlining)
+break main
+
+monitor arm semihosting enable
+
+# # send captured ITM to the file itm.fifo
+# # (the microcontroller SWO pin must be connected to the programmer SWO pin)
+# # 8000000 must match the core clock frequency
+# monitor tpiu config internal itm.txt uart off 8000000
+
+# # OR: make the microcontroller SWO pin output compatible with UART (8N1)
+# # 8000000 must match the core clock frequency
+# # 2000000 is the frequency of the SWO pin
+# monitor tpiu config external uart off 8000000 2000000
+
+# # enable ITM port 0
+# monitor itm port 0 on
+
+load
+
+# start the process but immediately halt the processor
+stepi
diff --git a/examples/stm32f4/src/bin/pwm_input.rs b/examples/stm32f1/src/bin/input_capture.rs
similarity index 86%
rename from examples/stm32f4/src/bin/pwm_input.rs
rename to examples/stm32f1/src/bin/input_capture.rs
index 49de33d2b..417830231 100644
--- a/examples/stm32f4/src/bin/pwm_input.rs
+++ b/examples/stm32f1/src/bin/input_capture.rs
@@ -11,10 +11,10 @@ use embassy_stm32::{bind_interrupts, peripherals};
 use embassy_time::Timer;
 use {defmt_rtt as _, panic_probe as _};
 
-/// Connect PB2 and PB10 with a 1k Ohm resistor
+/// Connect PA2 and PC13 with a 1k Ohm resistor
 
 #[embassy_executor::task]
-async fn blinky(led: peripherals::PB2) {
+async fn blinky(led: peripherals::PC13) {
     let mut led = Output::new(led, Level::High, Speed::Low);
 
     loop {
@@ -37,9 +37,9 @@ async fn main(spawner: Spawner) {
     let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
-    unwrap!(spawner.spawn(blinky(p.PB2)));
+    unwrap!(spawner.spawn(blinky(p.PC13)));
 
-    let ch3 = CapturePin::new_ch3(p.PB10, Pull::None);
+    let ch3 = CapturePin::new_ch3(p.PA2, Pull::None);
     let mut ic = InputCapture::new(p.TIM2, None, None, Some(ch3), None, Irqs, khz(1000), Default::default());
 
     loop {