commit faa1622857e0aa6c66191a716458902bf2321247
Author: sigil-03 <sigil@glyphs.tech>
Date:   Sun Jul 27 13:10:23 2025 -0600

    initial commit of heartbeat on ch32v

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ac4d88d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.ignore
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..c6e7965
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "adpcm-pwm-dac"]
+	path = ch32v-insert-coin/ext/adpcm-pwm-dac
+	url = ssh://git@git.glyphs.tech:222/sigil-03/adpcm-pwm-dac.git
+[submodule "ch32v-insert-coin/ext/ch32-hal"]
+	path = ch32v-insert-coin/ext/ch32-hal
+	url = git@github.com:ch32-rs/ch32-hal.git
diff --git a/ch32v-insert-coin/.cargo/config.toml b/ch32v-insert-coin/.cargo/config.toml
new file mode 100644
index 0000000..57920f5
--- /dev/null
+++ b/ch32v-insert-coin/.cargo/config.toml
@@ -0,0 +1,27 @@
+[build]
+target = "riscv32ec-unknown-none-elf.json"
+#target = "riscv32i-unknown-none-elf"
+
+[target.'cfg(all(target_arch = "riscv32", target_os = "none"))']
+# runner = "riscv64-elf-gdb -q -x openocd.gdb"
+# runner = "riscv-none-embed-gdb -q -x openocd.gdb"
+# runner = "gdb -q -x openocd.gdb"
+# runner = "wlink -v flash"
+
+# runner = "wlink -v flash --enable-sdi-print --watch-serial"
+
+# Flash and debug chip with probe-rs. https://probe.rs/
+runner = "probe-rs run --chip ch32v003"
+
+[unstable]
+build-std = ["core"]
+# build-std = ["core", "compiler_builtins"]
+# build-std-features = ["compiler-builtins-mem"]
+
+[target."riscv32ec-unknown-none-elf"]
+rustflags = ["-C", "link-arg=-Tlink.x"]
+
+#[target."riscv32i-unknown-none-elf"]
+#rustflags = [
+##  "-C", "link-arg=-Tlink.x",
+#]
diff --git a/ch32v-insert-coin/.gitignore b/ch32v-insert-coin/.gitignore
new file mode 100644
index 0000000..eb5a316
--- /dev/null
+++ b/ch32v-insert-coin/.gitignore
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diff --git a/ch32v-insert-coin/Cargo.lock b/ch32v-insert-coin/Cargo.lock
new file mode 100644
index 0000000..3624407
--- /dev/null
+++ b/ch32v-insert-coin/Cargo.lock
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diff --git a/ch32v-insert-coin/Cargo.toml b/ch32v-insert-coin/Cargo.toml
new file mode 100644
index 0000000..b7a1a06
--- /dev/null
+++ b/ch32v-insert-coin/Cargo.toml
@@ -0,0 +1,36 @@
+[package]
+name = "ch32v-insert-coin"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+ch32-hal = { path = "ext/ch32-hal/", features = [
+    "ch32v003f4u6",
+    "memory-x",
+    "embassy",
+    "time-driver-tim2",
+    "rt",
+] }
+embassy-executor = { version = "0.7.0", features = [
+    "arch-spin",
+    "executor-thread",
+    "task-arena-size-128", # or better use nightly, but fails on recent Rust versions
+    #"nightly",
+] }
+
+embassy-time = "0.4.0"
+panic-halt = "1.0"
+
+embedded-hal = "1.0.0"
+
+qingke-rt = { version = "*", features = ["highcode"] }
+
+
+
+[profile.release]
+strip = false   # symbols are not flashed to the microcontroller, so don't strip them.
+lto = true
+opt-level = "s" # Optimize for size.
+
+[profile.dev]
+overflow-checks = false
\ No newline at end of file
diff --git a/ch32v-insert-coin/ext/adpcm-pwm-dac b/ch32v-insert-coin/ext/adpcm-pwm-dac
new file mode 160000
index 0000000..d06329a
--- /dev/null
+++ b/ch32v-insert-coin/ext/adpcm-pwm-dac
@@ -0,0 +1 @@
+Subproject commit d06329a7259f126987355045281cbdf292258710
diff --git a/ch32v-insert-coin/ext/ch32-hal b/ch32v-insert-coin/ext/ch32-hal
new file mode 160000
index 0000000..2b8e1c8
--- /dev/null
+++ b/ch32v-insert-coin/ext/ch32-hal
@@ -0,0 +1 @@
+Subproject commit 2b8e1c864ba5545ee65b1c77dcb17c86a471b70c
diff --git a/ch32v-insert-coin/riscv32ec-unknown-none-elf.json b/ch32v-insert-coin/riscv32ec-unknown-none-elf.json
new file mode 100644
index 0000000..e394eb4
--- /dev/null
+++ b/ch32v-insert-coin/riscv32ec-unknown-none-elf.json
@@ -0,0 +1,18 @@
+{
+    "arch": "riscv32",
+    "atomic-cas": false,
+    "cpu": "generic-rv32",
+    "crt-objects-fallback": "false",
+    "data-layout": "e-m:e-p:32:32-i64:64-n32-S32",
+    "eh-frame-header": false,
+    "emit-debug-gdb-scripts": false,
+    "features": "+e,+c,+forced-atomics",
+    "linker": "rust-lld",
+    "linker-flavor": "gnu-lld",
+    "llvm-target": "riscv32",
+    "llvm-abiname": "ilp32e",
+    "max-atomic-width": 32,
+    "panic-strategy": "abort",
+    "relocation-model": "static",
+    "target-pointer-width": "32"
+}
\ No newline at end of file
diff --git a/ch32v-insert-coin/src/main.rs b/ch32v-insert-coin/src/main.rs
new file mode 100644
index 0000000..7fc4b30
--- /dev/null
+++ b/ch32v-insert-coin/src/main.rs
@@ -0,0 +1,45 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+#![feature(impl_trait_in_assoc_type)]
+
+use hal::delay::Delay;
+use hal::gpio::{AnyPin, Level, Output, Pin};
+use {ch32_hal as hal};
+
+
+fn blink(pin: AnyPin, interval_ms: u64) {
+    let mut led = Output::new(pin, Level::Low, Default::default());
+
+    let mut delay = Delay;
+
+    loop {
+        let hb_count = 3;
+        let hb_period_ms = 1000;
+        for _ in 0..hb_count {
+            led.set_low();
+            delay.delay_ms((interval_ms/2) as u32);
+            led.set_high();
+            delay.delay_ms((interval_ms/2) as u32);
+        }
+        delay.delay_ms((hb_period_ms - (interval_ms * hb_count)) as u32);
+    }
+}
+
+#[qingke_rt::entry]
+fn main() -> ! {
+    let mut config = hal::Config::default();
+    config.rcc = hal::rcc::Config::SYSCLK_FREQ_48MHZ_HSE;
+    let p = hal::init(config);
+
+    let mut delay = Delay;
+
+    blink(p.PD6.degrade(), 100);
+    loop{};
+}
+
+
+#[panic_handler]
+fn panic(info: &core::panic::PanicInfo) -> ! {
+    loop {}
+}
\ No newline at end of file