Programming Tool for PUYA PY32F0xx Microcontrollers

Description

With this tool, PUYA microcontrollers of the series PY32F0xx (and maybe other PY32) can be flashed via a simple USB-to-serial converter by utilizing the factory built-in embedded UART/HID bootloader.

Preparations

If necessary, a driver for the USB-to-serial converter used must be installed.

Installation

Ensure that the prerequisites for installing Python packages are met. Then execute the following command in the command line:

pip install puyaisp

Usage

Connect your USB-to-serial converter to your PY32F0xx MCU as follows:

USB2SERIAL            PY32F0xx
+--------+      +-------------------+
|     RXD| <--- |PA2 or PA9  or PA14|
|     TXD| ---> |PA3 or PA10 or PA15|
|     VDD| ---> |VDD                |
|     GND| ---> |GND                |
+--------+      +-------------------+

Set your MCU to bootloader mode by using ONE of the following methods:

• Disconnect your USB-to-serial converter, pull BOOT0 pin (PF4) to VCC (or press and hold the BOOT button, if your board has one), then connect the converter to your USB port. BOOT0 pin (or BOOT button) can be released now.
• Connect your USB-to-serial converter to your USB port. Pull BOOT0 pin (PF4) to VCC, then pull nRST (PF2) shortly to GND (or press and hold the BOOT button, then press and release the RESET button and then release the BOOT button, if your board has them).
• If your microcontroller has USB, pull BOOT0 pin (PF4) to VCC (or press and hold the BOOT button, if your board has one), then connect it to your USB port. The default USB VID:PID is ffff:0448.

Usage: puyaisp [-h] [-u] [-l] [-e] [-o] [-G] [-R] [-t {serial,hid}] [-f FLASH]
               [--vid VID] [--pid PID] [--path PATH]
               [--timeout TIMEOUT]

Optional arguments:
  -h, --help                     show this help message and exit
  -u, --unlock                   unlock chip (remove read protection)
  -l, --lock                     lock chip (set read protection)
  -e, --erase                    perform chip erase (implied with -f)
  -o, --rstoption                reset option bytes
  -G, --nrstgpio                 make nRST pin a GPIO pin
  -R, --nrstreset                make nRST pin a RESET pin
  -t, --transport {serial,hid}   bootloader transport
  -f FLASH, --flash FLASH        write BIN file to flash and verify
  --vid VID                      HID VID
  --pid PID                      HID PID
  --path PATH                    hidapi device path
  --timeout TIMEOUT              read timeout in ms

Examples:
puyaisp -f firmware.bin
puyaisp -t hid -f firmware.bin

Links

• MCU Flash Tools
• MCU Templates
• MCU Development Boards
• AVR Development Boards
• AVR Programmers
• SAMD Development Boards