MicroPython Forum (Archive)

Posted: **Fri Jan 03, 2020 8:21 am**

hello,here is the situation:
arcade has a lcd (st7735s) ,and i have make it run in python code, the memory runs wells, here is the code:

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import pyb
import lcd
import gc

while True:
  gc.collect()
  lcd.clearScreen()
  pyb.led_1.toggle()
  lcd.drawText(0,0,"card undetected")
  memstr = 'free: {}'.format(gc.mem_free())
  allocstr = 'alloc: {}'.format(gc.mem_alloc())
  lcd.drawText(0,10,memstr)
  lcd.drawText(0,20,allocstr)
  lcd.show()
  gc.mem_free()

but when i plug usb to connect computer,it crashed,and the pybflash can't mount .
so i want to debug the program,after some search, gdb is the answer,then i typed:

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make BOARD=ARCADE_F401RE DEBUG=1

it is overflowed.

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arm-none-eabi-ld: region `FLASH_TEXT' overflowed by 68088 bytes
make: *** [build-ARCADE_F401RE/firmware.elf] Error 1

I did make some configure :

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#define MICROPY_HW_ENABLE_ADC       (0)
#define MICROPY_HW_ENABLE_DAC       (0)
#define MICROPY_HW_ENABLE_CAN       (0)
#define MICROPY_HW_HAS_NEOPIXEL     (0)
#define MICROPY_HW_ENABLE_HW_I2C    (0)
#define MICROPY_PY_PYB_LEGACY (0)

but it still large.

Posted: **Tue Jan 14, 2020 3:27 am**

I found a solution to the problem.
When SPI DMA starts to send, it may needs to disable all interrupts and start again after the end.

MicroPython Forum (Archive)

stm32f4 micropython debug (use arcade as pyboard)

stm32f4 micropython debug (use arcade as pyboard)

Re: stm32f4 micropython debug (use arcade as pyboard)