PY32F002
- PY32F002x5(20KB Flash/3KB RAM)
PY32F002A
- PY32F002Ax5(20KB Flash/3KB RAM)
PY32F003
- PY32F003x4(16KB Flash/2KB RAM), PY32F003x6(32KB Flash/4KB RAM), PY32F003x8(64KB Flash/8KB RAM)
PY32F030
- PY32F030x4(16KB Flash/2KB RAM), PY32F030x6(32KB Flash/4KB RAM), PY32F030x7(48KB Flash/6KB RAM), PY32F030x8(64KB Flash/8KB RAM)
PY32F072
- PY32F072xB(128KB Flash/16KB RAM)

Note

There is high probability that PY32F002A, PY32F003 and PY32F030 share the same core, despite all the parts listed, you can treat them all as PY32F030 in coding and programming.

File Structure

├── Build                       # Build results
├── Docs                        # Datesheets and User Manuals
├── Examples
│   ├── FreeRTOS                # FreeRTOS examples
│   ├── HAL                     # HAL library examples
│   └── LL                      # LL(Low Layer) library examples
├── Libraries
│   ├── BSP                     # SysTick delay and printf for debug
│   ├── BSP_LL                  # SysTick delay and printf for debug
│   ├── CMSIS
│   ├── FreeRTOS                # FreeRTOS library
│   ├── LDScripts               # LD files
│   ├── PY32F0xx_HAL_Driver     # MCU peripheral driver
│   └── PY32F0xx_LL_Driver      # MCU low layer peripheral driver
├── Makefile                    # Make config
├── Misc
│   ├── Flash
│   │   ├── JLinkDevices        # JLink flash loaders
│   │   └── Sources             # Flash algorithm source code
│   ├── Puya.PY32F0xx_DFP.x.pack # DFP pack file for PyOCD
│   └── SVD                     # SVD files
├── README.md
├── rules.mk                    # Pre-defined rules include in Makefile 
└── User                        # User application code

Requirements

PY32F0 EVB or boards of PY32F002/003/030 series
Programmer
- J-Link: J-Link OB programmer
- PyOCD: DAPLink or J-Link
SEGGER J-Link Software and Documentation pack https://www.segger.com/downloads/jlink/
PyOCD https://pyocd.io/
GNU Arm Embedded Toolchain

Building

1. Install GNU Arm Embedded Toolchain

Download the toolchain from Arm GNU Toolchain Downloads according to your pc architecture, extract the files

sudo mkdir -p /opt/gcc-arm/
sudo tar xvf arm-gnu-toolchain-12.2.rel1-x86_64-arm-none-eabi.tar.xz -C /opt/gcc-arm/
cd /opt/gcc-arm/
sudo chown -R root:root arm-gnu-toolchain-12.2.rel1-x86_64-arm-none-eabi/

2. Option #1: Install SEGGER J-Link

Download and install JLink from J-Link / J-Trace Downloads.

# installation command for .deb
sudo dpkg -i JLink_Linux_V784f_x86_64.deb
# uncompression command for .tar.gz
sudo tar xvf JLink_Linux_V784f_x86_64.tgz -C [target folder]

The default installation directory is /opt/SEGGER

Copy [Project directory]/Misc/Flash/JLinkDevices to [User home]/.config/SEGGER/JLinkDevices/

cd py32f0-template
cp -r Misc/Flash/JLinkDevices/ ~/.config/SEGGER/

2. Option #2: Install PyOCD

Don't install from apt repository, because the version 0.13.1+dfsg-1 is too low for J-Link probe.

Install PyOCD from pip

pip uninstall pyocd

This will install PyOCD into:

/home/[user]/.local/bin/pyocd
/home/[user]/.local/bin/pyocd-gdbserver
/home/[user]/.local/lib/python3.10/site-packages/pyocd-0.34.2.dist-info/*
/home/[user]/.local/lib/python3.10/site-packages/pyocd/*

In Ubuntu, .profile will take care of the PATH, run source ~/.profile to make pyocd command available

3. Clone This Repository

Clone this repository to local workspace

git clone https://github.com/IOsetting/py32f0-template.git

4. Edit Makefile

Change the settings in Makefile

USE_LL_LIB Puya provides two sets of library, HAL and LL, set USE_LL_LIB ?= y to use LL instead of HAL.
ENABLE_PRINTF_FLOAT set it to y to -u _printf_float to link options. This will increase the binary size.
USE_FREERTOS Set USE_FREERTOS ?= y will include FreeRTOS in compilation
USE_DSP Include CMSIS DSP or not
FLASH_PROGRM
- If you use J-Link, FLASH_PROGRM can be jlink or pyocd
- If you use DAPLink, set FLASH_PROGRM ?= pyocd
- ST-LINK is not supported yet.
ARM_TOOCHAIN Make sure it points to the correct path of arm-none-eabi-gcc

##### Project #####

PROJECT           ?= app
# The path for generated files
BUILD_DIR         = Build


##### Options #####

# Use LL library instead of HAL, y:yes, n:no
USE_LL_LIB        ?= n
# Enable printf float %f support, y:yes, n:no
ENABLE_PRINTF_FLOAT ?= n
# Build with FreeRTOS, y:yes, n:no
USE_FREERTOS      ?= n
# Build with CMSIS DSP functions, y:yes, n:no
USE_DSP           ?= n
# Programmer, jlink or pyocd
FLASH_PROGRM      ?= pyocd

##### Toolchains #######
ARM_TOOCHAIN      ?= /opt/gcc-arm/arm-gnu-toolchain-12.2.rel1-x86_64-arm-none-eabi/bin

# path to JLinkExe
JLINKEXE          ?= /opt/SEGGER/JLink/JLinkExe
# JLink device type, options:
#   PY32F002AX5, PY32F002X5, 
#   PY32F003X4, PY32F003X6, PY32F003X8, 
#   PY32F030X4, PY32F030X6, PY32F030X7, PY32F030X8
JLINK_DEVICE      ?= PY32F030X6
# path to PyOCD, 
PYOCD_EXE         ?= pyocd
# PyOCD device type, options: 
#     py32f002ax5, py32f002x5, 
#   py32f003x4,  py32f003x6, py32f003x8, 
#   py32f030x3,  py32f030x4, py32f030x6, py32f030x7, py32f030x8
#   py32f072xb
PYOCD_DEVICE      ?= py32f030x8


##### Paths ############

# Link descript file: py32f002x5.ld, py32f003x6.ld, py32f003x8.ld, py32f030x6.ld, py32f030x8.ld
LDSCRIPT          = Libraries/LDScripts/py32f030x8.ld
# Library build flags: 
#   PY32F002x5, PY32F002Ax5, 
#   PY32F003x4, PY32F003x6, PY32F003x8, 
#   PY32F030x3, PY32F030x4, PY32F030x6, PY32F030x7, PY32F030x8, 
#   PY32F072xB
LIB_FLAGS         = PY32F030x6

5. Compiling And Flashing

# clean source code
make clean
# build
make
# or make with verbose output
V=1 make
# flash
make flash

Debugging In VSCode

Install Cortex Debug extension, add a new configuration in launch.json, e.g.

{
    "armToolchainPath": "/opt/gcc-arm/arm-gnu-toolchain-12.2.rel1-x86_64-arm-none-eabi/bin/",
    "toolchainPrefix": "arm-none-eabi",
    "name": "Cortex Debug",
    "cwd": "${workspaceFolder}",
    "executable": "${workspaceFolder}/Build/app.elf",
    "request": "launch",        // can be launch or attach
    "type": "cortex-debug",
    "runToEntryPoint": "Reset_Handler", // "main" or other function name. runToMain is deprecated
    "servertype": "jlink",  // jlink, openocd, pyocd, pe and stutil
    "device": "PY32F030X8",
    "interface": "swd",
    "preLaunchTask": "build",  // Set this to run a task from tasks.json before starting a debug session
    // "preLaunchCommands": ["Build all"], // Uncomment this if not using preLaunchTask
    "svdFile": "${workspaceFolder}/Misc/SVD/py32f030xx.svd",  // svd for this part number
    "showDevDebugOutput": "vscode", // parsed, raw, vscode:vscode log and raw
    "swoConfig":
    {
        "enabled": true,
        "cpuFrequency": 8000000, // Target CPU frequency in Hz
        "swoFrequency":  4000000,
        "source": "probe", // either be “probe” to get directly from the debug probe, 
                           // or a serial port device to use a serial port external to the debug probe.
        "decoders":
        [
            {
                "label": "ITM port 0 output",
                "type": "console",
                "port": 0,
                "showOnStartup": true,
                "encoding": "ascii"
            }
        ]
    }
}

If Cortex Debug cannot find JLinkGDBServerCLExe, add the following line to settings.json

"cortex-debug.JLinkGDBServerPath": "/opt/SEGGER/JLink/JLinkGDBServerCLExe",

Try Other Examples

More examples can be found in Examples folder, copy and replace the files under User folder to try different examples.

README.md

py32f0-template

Puya PY32F0 Family