commit 96f3ec0449b5a10a6abaa21459213b57672bd606
Author: ju6ge <judge@felixrichter.tech>
Date:   Fri Jun 20 10:23:11 2025 +0200

    Initial commit

diff --git a/.cargo/config.toml b/.cargo/config.toml
new file mode 100644
index 0000000..c0b2201
--- /dev/null
+++ b/.cargo/config.toml
@@ -0,0 +1,14 @@
+[build]
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+
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+# runner = "gdb -q -x openocd.gdb"
+# runner = "wlink -v flash"
+
+runner = "wlink -v flash --enable-sdi-print --watch-serial --erase"
+# runner = "wlink -v flash"
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..eb5a316
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diff --git a/Cargo.lock b/Cargo.lock
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+[[package]]
+name = "nb"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "801d31da0513b6ec5214e9bf433a77966320625a37860f910be265be6e18d06f"
+dependencies = [
+ "nb 1.1.0",
+]
+
+[[package]]
+name = "nb"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d5439c4ad607c3c23abf66de8c8bf57ba8adcd1f129e699851a6e43935d339d"
+
+[[package]]
+name = "num-traits"
+version = "0.2.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
+dependencies = [
+ "autocfg",
+]
+
+[[package]]
+name = "once_cell"
+version = "1.21.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
+
+[[package]]
+name = "panic-halt"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a513e167849a384b7f9b746e517604398518590a9142f4846a32e3c2a4de7b11"
+
+[[package]]
+name = "paste"
+version = "1.0.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
+
+[[package]]
+name = "pin-project-lite"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3b3cff922bd51709b605d9ead9aa71031d81447142d828eb4a6eba76fe619f9b"
+
+[[package]]
+name = "pin-utils"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
+
+[[package]]
+name = "portable-atomic"
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+
+[[package]]
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+checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
+dependencies = [
+ "proc-macro-error-attr",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+ "version_check",
+]
+
+[[package]]
+name = "proc-macro-error-attr"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "proc-macro2",
+ "quote",
+ "version_check",
+]
+
+[[package]]
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+version = "1.0.95"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "unicode-ident",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+dependencies = [
+ "bit_field",
+ "critical-section",
+ "riscv 0.12.1",
+]
+
+[[package]]
+name = "qingke-rt"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b955c60adac70c6d40205b1dbe9f57e1151d06aa842069cdbaef7bc07ad283fd"
+dependencies = [
+ "qingke",
+ "qingke-rt-macros",
+]
+
+[[package]]
+name = "qingke-rt-macros"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f2ed46d18953ea5765ab26a07d1f092dffac2da1b4830c4397e02c3cec08501"
+dependencies = [
+ "proc-macro-error",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1885c039570dc00dcb4ff087a89e185fd56bae234ddc7f056a945bf36467248d"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
+
+[[package]]
+name = "riscv"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2f5c1b8bf41ea746266cdee443d1d1e9125c86ce1447e1a2615abd34330d33a9"
+dependencies = [
+ "critical-section",
+ "embedded-hal 1.0.0",
+]
+
+[[package]]
+name = "riscv"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5ea8ff73d3720bdd0a97925f0bf79ad2744b6da8ff36be3840c48ac81191d7a7"
+dependencies = [
+ "critical-section",
+ "embedded-hal 1.0.0",
+ "paste",
+ "riscv-macros",
+ "riscv-pac",
+]
+
+[[package]]
+name = "riscv-macros"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f265be5d634272320a7de94cea15c22a3bfdd4eb42eb43edc528415f066a1f25"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.101",
+]
+
+[[package]]
+name = "riscv-pac"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8188909339ccc0c68cfb5a04648313f09621e8b87dc03095454f1a11f6c5d436"
+
+[[package]]
+name = "sdio-host"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f93c025f9cfe4c388c328ece47d11a54a823da3b5ad0370b22d95ad47137f85a"
+
+[[package]]
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+checksum = "5f0e2c6ed6606019b4e29e69dbaba95b11854410e5347d525002456dbbb786b6"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.219"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b0276cf7f2c73365f7157c8123c21cd9a50fbbd844757af28ca1f5925fc2a00"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.101",
+]
+
+[[package]]
+name = "ssd1306"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b37918f6137f2b58427181c3e10a731bef1061a9756b13ffbade64f21892acc6"
+dependencies = [
+ "display-interface 0.4.1",
+ "display-interface-i2c",
+ "display-interface-spi 0.4.1",
+ "embedded-graphics-core",
+ "embedded-hal 0.2.7",
+]
+
+[[package]]
+name = "ssmarshal"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3e6ad23b128192ed337dfa4f1b8099ced0c2bf30d61e551b65fda5916dbb850"
+dependencies = [
+ "encode_unicode",
+ "serde",
+]
+
+[[package]]
+name = "stable_deref_trait"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+
+[[package]]
+name = "strsim"
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+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "syn"
+version = "2.0.101"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ce2b7fc941b3a24138a0a7cf8e858bfc6a992e7978a068a5c760deb0ed43caf"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
+
+[[package]]
+name = "usb-device"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "98816b1accafbb09085168b90f27e93d790b4bfa19d883466b5e53315b5f06a6"
+dependencies = [
+ "heapless",
+ "portable-atomic",
+]
+
+[[package]]
+name = "usbd-hid"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6f291ab53d428685cc780f08a2eb9d5d6ff58622db2b36e239a4f715f1e184c"
+dependencies = [
+ "serde",
+ "ssmarshal",
+ "usb-device",
+ "usbd-hid-macros",
+]
+
+[[package]]
+name = "usbd-hid-descriptors"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0eee54712c5d778d2fb2da43b1ce5a7b5060886ef7b09891baeb4bf36910a3ed"
+dependencies = [
+ "bitfield",
+]
+
+[[package]]
+name = "usbd-hid-macros"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bb573c76e7884035ac5e1ab4a81234c187a82b6100140af0ab45757650ccda38"
+dependencies = [
+ "byteorder",
+ "hashbrown",
+ "log",
+ "proc-macro2",
+ "quote",
+ "serde",
+ "syn 1.0.109",
+ "usbd-hid-descriptors",
+]
+
+[[package]]
+name = "vcell"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77439c1b53d2303b20d9459b1ade71a83c716e3f9c34f3228c00e6f185d6c002"
+
+[[package]]
+name = "version_check"
+version = "0.9.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
+
+[[package]]
+name = "void"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
+
+[[package]]
+name = "zerocopy"
+version = "0.8.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1702d9583232ddb9174e01bb7c15a2ab8fb1bc6f227aa1233858c351a3ba0cb"
+dependencies = [
+ "zerocopy-derive",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.8.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28a6e20d751156648aa063f3800b706ee209a32c0b4d9f24be3d980b01be55ef"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.101",
+]
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..79c7fb9
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,46 @@
+[package]
+name = "ch32v203-examples"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+ch32-hal = { path = "../ch32-hal", features = [
+    "ch32v203c8t6",
+    "memory-x",
+    "embassy",
+    "rt",
+    "time-driver-tim2",
+], default-features = false }
+
+embassy-executor = { version = "0.6.0", features = [
+    "integrated-timers",
+    "arch-riscv32",
+    "executor-thread",
+] }
+
+embassy-time = { version = "0.3.2" }
+embassy-usb = { version = "0.3.0" }
+embassy-futures = { version = "0.1.0" }
+#embassy-rp = "0.2.0"
+
+# This is okay because we should automatically use whatever ch32-hal uses
+qingke-rt = "*"
+qingke = "*"
+
+panic-halt = "1.0"
+
+display-interface-spi = "0.5.0"
+embedded-hal = "1.0.0"
+embedded-graphics = "0.8.1"
+ssd1306 = "0.8.4"
+heapless = "0.8.0"
+micromath = { version = "2.1.0", features = ["num-traits"] }
+
+# mipidsi = "0.7.1"
+# embedded-hal-bus = "0.1.0"
+
+
+[profile.release]
+strip = false   # symbols are not flashed to the microcontroller, so don't strip them.
+lto = true
+opt-level = "z" # Optimize for size.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..98c4ded
--- /dev/null
+++ b/README.md
@@ -0,0 +1,18 @@
+# ch32v203-examples
+
+- SWDIO: PA13
+- SWCLK: PA14
+
+## Boards
+
+### FlappyBoard - CH32V203G6
+
+Link: <https://github.com/metro94/FlappyBoard>
+
+### nanoCH32V203 - CH32V203C8T6
+
+Link: <https://github.com/wuxx/nanoCH32V203>
+
+- HSE: 8MHz
+- LSE: 32.768kHz
+- LED: PA15
diff --git a/bin/build-wch-tools-container.sh b/bin/build-wch-tools-container.sh
new file mode 100755
index 0000000..83721f8
--- /dev/null
+++ b/bin/build-wch-tools-container.sh
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+CONTAINER_NAME="localhost/wch-dev-tools:latest"
+CONTAINER_TOOLS_BASEDIR="$(dirname "$(readlink -f "$0")")"
+
+pushd "$CONTAINER_TOOLS_BASEDIR"
+podman build -t "$CONTAINER_NAME" -f "../wch-tools.Containerfile" .
+popd
diff --git a/bin/gdb b/bin/gdb
new file mode 100755
index 0000000..e138cd4
--- /dev/null
+++ b/bin/gdb
@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+CONTAINER_IMAGE="localhost/wch-dev-tools:latest"
+CONTAINER_TOOLS_BASEDIR="$(dirname "$(readlink -f "$0")")"
+
+function _fatal {
+	echo -e "\e[31mERROR\e[0m   $(</dev/stdin)$*" 1>&2
+	exit 1
+}
+
+declare -a PODMAN_ARGS=(
+	"--rm" "-i" "--log-driver=none"
+    "--network=host"
+	"-v" "$PWD:$PWD:rw"
+	"-w" "$PWD"
+)
+
+[[ -t 1 ]] && PODMAN_ARGS+=("-t")
+
+if ! podman image exists "$CONTAINER_IMAGE"; then
+    #attempt to build container
+    "$CONTAINER_TOOLS_BASEDIR/build-wch-tools-container.sh" 1>&2 ||
+        _fatal "faild to build local image, cannot continue! … please ensure you have an internet connection"
+fi
+
+podman run "${PODMAN_ARGS[@]}" --entrypoint riscv-none-elf-gdb-py3 "$CONTAINER_IMAGE" "$@"
diff --git a/bin/openocd b/bin/openocd
new file mode 100755
index 0000000..21f136b
--- /dev/null
+++ b/bin/openocd
@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+CONTAINER_IMAGE="localhost/wch-dev-tools:latest"
+CONTAINER_TOOLS_BASEDIR="$(dirname "$(readlink -f "$0")")"
+
+function _fatal {
+	echo -e "\e[31mERROR\e[0m   $(</dev/stdin)$*" 1>&2
+	exit 1
+}
+
+declare -a PODMAN_ARGS=(
+	"--rm" "-i" "--log-driver=none"
+    "-p" "3333:3333"
+    "-p" "4444:4444"
+	"-v" "$PWD:$PWD:rw"
+	"-w" "$PWD"
+)
+
+for device in /dev/bus/usb/*/*; do
+    if udevadm info "$device" | grep -q "ID_VENDOR=wch.cn" && \
+       udevadm info "$device" | grep -q "ID_MODEL=WCH-Link"; then
+        DEBUGGER_DEV_PATH="$device"
+        break
+    fi
+done
+
+if [[ -z "${DEBUGGER_DEV_PATH:-}" ]]; then
+    echo "Could not find hardware debugger … Exiting!" 1>&2
+    exit 1
+else
+    # add jlink to podman device
+    PODMAN_ARGS+=("--device=$DEBUGGER_DEV_PATH")
+fi
+
+[[ -t 1 ]] && PODMAN_ARGS+=("-t")
+
+if ! podman image exists "$CONTAINER_IMAGE"; then
+    #attempt to build container
+    "$CONTAINER_TOOLS_BASEDIR/build-wch-tools-container.sh" 1>&2 ||
+        _fatal "faild to build local image, cannot continue! … please ensure you have an internet connection"
+fi
+
+podman run "${PODMAN_ARGS[@]}" --entrypoint openocd "$CONTAINER_IMAGE" "$@"
diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..77208e1
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,11 @@
+fn main() {
+    // println!("cargo:rustc-link-arg-bins=--nmagic");
+    println!("cargo:rustc-link-arg-bins=-Tlink.x");
+    // println!("cargo:rustc-link-arg-bins=-Tdefmt.x");
+
+    let out_dir = std::env::var("OUT_DIR").unwrap();
+    let out_dir = std::path::PathBuf::from(out_dir);
+    std::fs::write(out_dir.join("memory.x"), include_bytes!("memory.x")).unwrap();
+    println!("cargo:rustc-link-search={}", out_dir.display());
+    println!("cargo:rerun-if-changed=memory.x");
+}
diff --git a/memory.x b/memory.x
new file mode 100644
index 0000000..d6d76a7
--- /dev/null
+++ b/memory.x
@@ -0,0 +1,125 @@
+/* CH32V203c8t6 */
+MEMORY
+{
+    FLASH : ORIGIN = 0x00000000, LENGTH =   64K /* BANK_1 */
+    RAM   : ORIGIN = 0x20000000, LENGTH =   20K
+}
+REGION_ALIAS("REGION_TEXT", FLASH);
+REGION_ALIAS("REGION_RODATA", FLASH);
+REGION_ALIAS("REGION_DATA", RAM);
+REGION_ALIAS("REGION_BSS", RAM);
+REGION_ALIAS("REGION_HEAP", RAM);
+REGION_ALIAS("REGION_STACK", RAM);
+
+/* fault handlers */
+
+PROVIDE(InstructionMisaligned = ExceptionHandler);
+PROVIDE(InstructionFault = ExceptionHandler);
+PROVIDE(IllegalInstruction = ExceptionHandler);
+PROVIDE(Breakpoint = ExceptionHandler);
+PROVIDE(LoadMisaligned = ExceptionHandler);
+PROVIDE(LoadFault = ExceptionHandler);
+PROVIDE(StoreMisaligned = ExceptionHandler);
+PROVIDE(StoreFault = ExceptionHandler);;
+PROVIDE(UserEnvCall = ExceptionHandler);
+PROVIDE(SupervisorEnvCall = ExceptionHandler);
+PROVIDE(MachineEnvCall = ExceptionHandler);
+PROVIDE(InstructionPageFault = ExceptionHandler);
+PROVIDE(LoadPageFault = ExceptionHandler);
+PROVIDE(StorePageFault = ExceptionHandler);
+
+/* core interrupt handlers */
+
+PROVIDE(NonMaskableInt = DefaultHandler);
+PROVIDE(Software = DefaultHandler);
+
+/* external interrupt handlers */
+
+PROVIDE(WWDG = DefaultHandler);
+PROVIDE(PVD = DefaultHandler);
+PROVIDE(TAMPER = DefaultHandler);
+PROVIDE(RTC = DefaultHandler);
+PROVIDE(FLASH = DefaultHandler);
+PROVIDE(RCC = DefaultHandler);
+PROVIDE(EXTI0 = DefaultHandler);
+PROVIDE(EXTI1 = DefaultHandler);
+PROVIDE(EXTI2 = DefaultHandler);
+PROVIDE(EXTI3 = DefaultHandler);
+PROVIDE(EXTI4 = DefaultHandler);
+PROVIDE(DMA1_CHANNEL1 = DefaultHandler);
+PROVIDE(DMA1_CHANNEL2 = DefaultHandler);
+PROVIDE(DMA1_CHANNEL3 = DefaultHandler);
+PROVIDE(DMA1_CHANNEL4 = DefaultHandler);
+PROVIDE(DMA1_CHANNEL5 = DefaultHandler);
+PROVIDE(DMA1_CHANNEL6 = DefaultHandler);
+PROVIDE(DMA1_CHANNEL7 = DefaultHandler);
+PROVIDE(ADC = DefaultHandler);
+PROVIDE(USB_HP_CAN1_TX = DefaultHandler);
+/*PROVIDE(USB_LP_CAN1_RX0 = DefaultHandler);*/
+PROVIDE(CAN1_RX1 = DefaultHandler);
+PROVIDE(CAN1_SCE = DefaultHandler);
+PROVIDE(EXTI9_5 = DefaultHandler);
+PROVIDE(TIM1_BRK = DefaultHandler);
+PROVIDE(TIM1_UP_ = DefaultHandler);
+PROVIDE(TIM1_TRG_COM = DefaultHandler);
+PROVIDE(TIM1_CC = DefaultHandler);
+PROVIDE(TIM2 = DefaultHandler);
+PROVIDE(TIM3 = DefaultHandler);
+PROVIDE(TIM4 = DefaultHandler);
+PROVIDE(I2C1_EV = DefaultHandler);
+PROVIDE(I2C1_ER = DefaultHandler);
+PROVIDE(I2C2_EV = DefaultHandler);
+PROVIDE(I2C2_ER = DefaultHandler);
+PROVIDE(SPI1 = DefaultHandler);
+PROVIDE(SPI2 = DefaultHandler);
+PROVIDE(USART1 = DefaultHandler);
+PROVIDE(USART2 = DefaultHandler);
+PROVIDE(USART3 = DefaultHandler);
+PROVIDE(EXTI15_10 = DefaultHandler);
+PROVIDE(RTCALARM = DefaultHandler);
+PROVIDE(USBWAKE_UP = DefaultHandler);
+PROVIDE(TIM8_BRK = DefaultHandler);
+PROVIDE(TIM8_UP_ = DefaultHandler);
+PROVIDE(TIM8_TRG_COM = DefaultHandler);
+PROVIDE(TIM8_CC = DefaultHandler);
+PROVIDE(RNG = DefaultHandler);
+PROVIDE(FSMC = DefaultHandler);
+PROVIDE(SDIO = DefaultHandler);
+PROVIDE(TIM5 = DefaultHandler);
+PROVIDE(SPI3 = DefaultHandler);
+PROVIDE(UART4 = DefaultHandler);
+PROVIDE(UART5 = DefaultHandler);
+PROVIDE(TIM6 = DefaultHandler);
+PROVIDE(TIM7 = DefaultHandler);
+PROVIDE(DMA2_CHANNEL1 = DefaultHandler);
+PROVIDE(DMA2_CHANNEL2 = DefaultHandler);
+PROVIDE(DMA2_CHANNEL3 = DefaultHandler);
+PROVIDE(DMA2_CHANNEL4 = DefaultHandler);
+PROVIDE(DMA2_CHANNEL5 = DefaultHandler);
+PROVIDE(ETH = DefaultHandler);
+PROVIDE(ETH_WKUP = DefaultHandler);
+PROVIDE(CAN2_TX = DefaultHandler);
+PROVIDE(CAN2_RX0 = DefaultHandler);
+PROVIDE(CAN2_RX1 = DefaultHandler);
+PROVIDE(CAN2_SCE = DefaultHandler);
+PROVIDE(OTG_FS = DefaultHandler);
+PROVIDE(USBHSWAKEUP = DefaultHandler);
+PROVIDE(USBHS = DefaultHandler);
+PROVIDE(DVP = DefaultHandler);
+PROVIDE(UART6 = DefaultHandler);
+PROVIDE(UART7 = DefaultHandler);
+PROVIDE(UART8 = DefaultHandler);
+PROVIDE(TIM9_BRK = DefaultHandler);
+PROVIDE(TIM9_UP_ = DefaultHandler);
+PROVIDE(TIM9_TRG_COM = DefaultHandler);
+PROVIDE(TIM9_CC = DefaultHandler);
+PROVIDE(TIM10_BRK = DefaultHandler);
+PROVIDE(TIM10_UP_ = DefaultHandler);
+PROVIDE(TIM10_TRG_COM = DefaultHandler);
+PROVIDE(TIM10_CC = DefaultHandler);
+PROVIDE(DMA2_CHANNEL6 = DefaultHandler);
+PROVIDE(DMA2_CHANNEL7 = DefaultHandler);
+PROVIDE(DMA2_CHANNEL8 = DefaultHandler);
+PROVIDE(DMA2_CHANNEL9 = DefaultHandler);
+PROVIDE(DMA2_CHANNEL10 = DefaultHandler);
+PROVIDE(DMA2_CHANNEL11 = DefaultHandler);
diff --git a/openocd.cfg b/openocd.cfg
new file mode 100644
index 0000000..b4b2dc5
--- /dev/null
+++ b/openocd.cfg
@@ -0,0 +1,17 @@
+set _CHIPNAME ch32v203
+set _TARGETNAME $_CHIPNAME.cpu
+
+bindto 0.0.0.0
+
+adapter driver wlinke
+adapter speed 6000
+transport select sdi
+
+sdi newtap $_CHIPNAME cpu -irlen 5 --expected-id 0x00001
+target create $_TARGETNAME.0 wch_riscv -chain-position $_TARGETNAME
+$_TARGETNAME.0 configure -work-area-phys 0x20000000 -work-area-size 10000 -work-area-backup 1
+set _FLASHNAME $_CHIPNAME.flash
+
+flash bank $_FLASHNAME wch_rsicv 0x00000000 0 0 0 $_TARGETNAME.0
+
+init
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000..5d56faf
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,2 @@
+[toolchain]
+channel = "nightly"
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..369fa9f
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,77 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+#![feature(impl_trait_in_assoc_type)]
+
+use ch32_hal::{embassy, pac::Interrupt::USB_LP_CAN1_RX0};
+use ch32_hal::usart;
+use embassy_executor::Spawner;
+use embassy_futures::join::join;
+use embassy_time::{Duration, Timer};
+use embassy_usb::UsbDevice;
+use embassy_usb::{Builder, Config, class::cdc_acm::{CdcAcmClass, State}};
+use hal::peripherals::USBD;
+use hal::gpio::{AnyPin, Level, Output, Pin};
+use hal::usart::UartTx;
+use hal::usbd::{Driver, Instance, InterruptHandler};
+use hal::bind_interrupts;
+use {ch32_hal as hal, panic_halt as _};
+
+bind_interrupts!(struct Irqs {
+   USB_LP_CAN1_RX0 => InterruptHandler<USBD>;
+});
+
+
+#[embassy_executor::main(entry = "qingke_rt::entry")]
+async fn main(spawner: Spawner) -> ! {
+    let p = hal::init(Default::default());
+
+    let mut led = Output::new(p.PB2, Level::Low, Default::default());
+
+    let mut cfg = usart::Config::default();
+    let mut uart = UartTx::new_blocking(p.USART1, p.PA9, cfg).unwrap();
+
+    let usb_driver = Driver::new(p.USBD, Irqs, p.PA12, p.PA11);
+    // Create embassy-usb Config
+    let mut config = Config::new(0xc0de, 0xcafe);
+    config.manufacturer = Some("Embassy");
+    config.product = Some("USB-serial example");
+    config.serial_number = Some("12345678");
+    config.max_power = 100;
+    config.max_packet_size_0 = 64;
+
+    // Create embassy-usb DeviceBuilder using the driver and config.
+    // It needs some buffers for building the descriptors.
+    let mut config_descriptor = [0; 256];
+    let mut bos_descriptor = [0; 256];
+    let mut control_buf = [0; 64];
+
+    let mut state = State::new();
+
+    let mut builder = Builder::new(
+        usb_driver,
+        config,
+        &mut config_descriptor,
+        &mut bos_descriptor,
+        &mut [], // no msos descriptors
+        &mut control_buf,
+    );
+
+    // Create classes on the builder.
+    let mut class = CdcAcmClass::new(&mut builder, &mut state, 64);
+
+    let mut usb = builder.build();
+    let usb_task = usb.run();
+
+    let worker_task = async {
+        loop {
+            Timer::after_millis(1000).await;
+
+            //class.write_packet(b"hello world from embassy main\r\n").await;
+
+            led.toggle();
+        }
+    };
+
+    join(usb_task, worker_task).await.1
+}
diff --git a/wch-tools.Containerfile b/wch-tools.Containerfile
new file mode 100644
index 0000000..e32a18b
--- /dev/null
+++ b/wch-tools.Containerfile
@@ -0,0 +1,25 @@
+FROM debian:bookworm
+
+RUN apt update -y && apt upgrade -y && apt install git libjaylink-dev libusb-1.0-0 unzip curl libhidapi-hidraw0 xz-utils -y
+
+RUN cd /root && \
+    curl -L -o mrs-toolchain.tar.xz "https://github.com/ch32-riscv-ug/MounRiver_Studio_Community_miror/releases/download/1.92-toolchain/MRS_Toolchain_Linux_x64_V1.92.tar.xz" && \
+    mkdir mrs-toolchain && \
+    tar -xvf mrs-toolchain.tar.xz -C mrs-toolchain --strip-components=1 && \
+    mv mrs-toolchain/OpenOCD/bin/openocd /usr/local/bin && \
+    mv mrs-toolchain/OpenOCD/share/openocd /usr/local/share && \
+    # mv mrs-toolchain/RISC-V_Embedded_GCC12/bin/riscv-none-elf-gdb /usr/local/bin && \                     # both toolchains in MRS are to old to work with emacs dape
+    # mv mrs-toolchain/RISC-V_Embedded_GCC12/libexec /usr/local && \                                        # both toolchains in MRS are to old to work with emacs dape
+    rm -rf mrs-toolchain mrs-toolchain.tar.xz && \
+    # Use up to date xpack toolchains for gdb
+    curl -L -o xpack-riscv-toolchain.tar.gz "https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack/releases/download/v14.2.0-3/xpack-riscv-none-elf-gcc-14.2.0-3-linux-x64.tar.gz" && \
+    mkdir xpack-toolchain && \
+    tar -xvf xpack-riscv-toolchain.tar.gz -C xpack-toolchain --strip-components=1 && \
+    mv xpack-toolchain/bin/* /usr/local/bin && \
+    mv xpack-toolchain/lib/ /usr/local && \
+    mv xpack-toolchain/lib64/ /usr/local && \
+    mv xpack-toolchain/libexec /usr/local && \
+    mv xpack-toolchain/riscv-none-elf /usr/local && \
+    rm -rf xpack-toolchain xpack-riscv-toolchain.tar.gz
+
+ENTRYPOINT [ "/usr/bin/bash" ]