PY32F002A_HK32F030M_Demo board

## Chip model
- py32f002af15p6
- hk32f030mf4p6
## Lead-out settings
- All IO are led out
- Uart1 lead-out
- SWD interface
- Power supply interface, for convenient low-power testing
## py32 test
After testing, py32 has 4k ram and 32k flash (nominal 3k ram and 20k flash). The price of 0.65 yuan is really good. It also provides hal library and ll library. The manual is also very detailed. The style of the code is what I like, but the 12-bit adc error seems a bit large. It's okay to reduce the precision error. This is cheaper than the 51 microcontroller. What else do you want at this price? Hahahaha. The test code is referenced from https://www.cnblogs.com/milton/p/17052963.html.
The test project is located in PY32F0xx_Firmware_V1.1.2ProjectsPY32F030-STKExampleGPIO est, modified from the gpio toggle project of py32f030
## Test picture
### Test project
storage space occupancy: sram 4KB, flash 30.8KB, you can adjust the Buffer size in the main file to modify the sram occupancy
![Screenshot 2023-03-10 173437.png] ### Turn on pll, test flash and sram, the system clock is 48Mhz.
Since hse is not used, the internal hsi is up to 24Mhz, so the system clock can only reach a maximum of 48Mhz. It was tested for 5 hours and is very stable.
![Screenshot 2023-03-10 172417.png] **PA1 outputs 48Mhz clock**
![_DSC1676.jpg]