There are two primary ways to apply the update depending on your unit's current state. Method 1: Standard Settings Menu
| Item | Purpose | |------|---------| | (e.g., FTDI, CP2102) | To connect the MCU to your PC | | Jumper wires (female-to-female) | For BOOT0, NRST, and UART pins | | RKPX3 firmware file (.bin or .hex) | Obtained from your device OEM or community repository | | STM32CubeProgrammer (or a compatible tool) | The flashing utility (RKPX3 is STM32-compatible) | | 3.3V or 5V power supply | Check your MCU’s voltage requirement |
: The update process might take several minutes. The device may reboot several times.
Wire the adapter to the RKPX3’s USART1 pins (typically PA9/PA10):
