Micropython AI-M61, AI-M62, AI-WB2

你好，我在此分享关于Zephyr实时操作系统和MicroPython在Bouffalolab BL616/8及BL602（即M62、M61和WB2）上的开发成果。由于我不通晓中文，为避免糟糕的翻译造成阅读困扰，本文余下部分将以英文呈现。

Here is Micropython for the BFLB Ai-thinker modules and boards: https://github.com/VynDragon/bou ... g/future_preview002
It features all the basic functionalities of micropython such as saving files on filesystem and peripherals access, namely UART, I2C, SPI, GPIO. UART0 is used as the REPL.
On top of this, it features the following new things for Zephyr-Micropython:
- Dynamic pin assignment
- Machine code emitter (faster) for M61 and M62
- Overclocked versions for M61 and M62 (480MHz)
- PSRAM support for M61
- Filesystem backend is zephyr's

Please use bflb-mcu-tool-uart from bouffalolab to flash the firmware.
I recommend Ai-M61-32S (All) for best behavior, it is mostly tested on that.

Here are some example code using those features:

1. from machine import Pin, I2C
   
2. import ssd1306, sys
   
3. 
   
4. scl = Pin(None, alt="GPIO28_I2C0_SCL", schmitt_enable=True, mode=0)
   
5. sda = Pin(None, alt="GPIO13_I2C0_SDA", schmitt_enable=True, mode=0)
   
6. dummy = Pin(("gpio0", 0), mode=0)
   
7. dummy = Pin(("gpio0", 1), mode=0)
   
8. 
   
9. # scl = Pin(None, alt="GPIO0_I2C0_SCL", schmitt_enable=True, mode=0)
   
10. # sda = Pin(None, alt="GPIO1_I2C0_SDA", schmitt_enable=True, mode=0)
    
11. # dummy = Pin(("gpio0", 28), mode=0)
    
12. # dummy = Pin(("gpio0", 13), mode=0)
    
13. 
    
14. i2c = I2C('i2c0', scl=scl, sda=sda, freq=100000)
    
15. display = ssd1306.SSD1306_I2C(128, 64, i2c)
    
16. 
    
17. display.text('Hello World', 0, 0, 1)
    
18. display.text('----------------', 0, 8, 1)
    
19. display.text('  From Python', 0, 16, 1)
    
20. display.text('   On Zephyr', 0, 24, 1)
    
21. display.text('Running on', 18, 32, 1)
    
22. name = ""
    
23. for c in sys.implementation._machine[7:]:
    
24.         if c != ' ':
    
25.                 name = name + c
    
26.         else:
    
27.                 break
    
28. display.text('{}'.format(name), 64 - int(len(name) * 8 / 2), 40, 1)
    
29. display.show()
    
30. 
    

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Result of this code with 0.96' SSD1315

1. @micropython.viper
   
2. def prime_viper(num:int) -> bool:
   
3.     if num == 1:
   
4.         return False
   
5.     for i in range(2, num):
   
6.         if (num % i) == 0:
   
7.             return False
   
8.     return True
   
9. 
   
10. @micropython.native
    
11. def prime_native(num:int) -> bool:
    
12.     if num == 1:
    
13.         return False
    
14.     for i in range(2, num):
    
15.         if (num % i) == 0:
    
16.             return False
    
17.     return True
    
18. 
    
19. def prime_bc(num:int) -> bool:
    
20.     if num == 1:
    
21.         return False
    
22.     for i in range(2, num):
    
23.         if (num % i) == 0:
    
24.             return False
    
25.     return True
    
26. 
    
27. def benchmark_viper():
    
28.     import time
    
29.     t = time.ticks_us()
    
30.     assert prime_viper(99929)
    
31.     t = time.ticks_diff(time.ticks_us(), t)
    
32.     print(f"viper prime() took {t/1000:6.3f}ms")
    
33. 
    
34. def benchmark_native():
    
35.     import time
    
36.     t = time.ticks_us()
    
37.     assert prime_native(99929)
    
38.     t = time.ticks_diff(time.ticks_us(), t)
    
39.     print(f"native prime() took {t/1000:6.3f}ms")
    
40. 
    
41. def benchmark_bc():
    
42.     import time
    
43.     t = time.ticks_us()
    
44.     assert prime_bc(99929)
    
45.     t = time.ticks_diff(time.ticks_us(), t)
    
46.     print(f"prime() took {t/1000:6.3f}ms")
    
47. 
    
48. benchmark_viper()
    
49. benchmark_native()
    
50. benchmark_bc()
    

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List of possible pin assignements are listed in machine.Pin.Pinmux. Sometimes it is necessary to set the previously used pins to GPIO mode to have the peripherals work properly. If you are having issues with _OC overclocked firmware, use the other firmware.

Wow! Your work is amazing and gives us new insights. Thank you—looking forward to more of your posts!🥰

Nice work

well done!!!

Amazing ！thank You！

Nobody knows MicroPython better than I do, except you!

特朗普 发表于 2025-10-29 16:17
Nobody knows MicroPython better than I do, except you!

Hello，Trump！

Good job