[GD32L233C] + 2. Sort out some configuration issues

chrisrh

[GD32L233C] + 2. Sort out some configuration issues [Copy link]

1. First of all, the demo routine is compiled with keil5.26 . To use the demo routine directly, you must use at least keil5.25 or above;

2. Error: cannot load Flash Programming Algorithmml

......Flash\GD32L23x_256K.FLM

Check the configuration environment and whether the ROM and RAM settings are correct.

You can refer to the following start and end addresses for modification, which should solve the error:

3. Routine L233C_START_Demo and Routine L233R_EVAL_Demo

Except for some peripheral pins, the two boards can refer to eval for peripheral initialization configuration;

When using L233R_EVAL_Demo_Suites routine 21_LPTIMER_Deepsleep_Pwmout ,

It is recommended to add more delays during initialization, and run some LED Blink or something.

Then enter deepsleep, otherwise, if it cannot be woken up or the program is not written well,

You may not be able to use cmsis dap to debug the program, and you have to use CH340 to tinker with it;

I just didn't add any delay and downloaded the demo program directly.

Then, if it is not handled properly, SWDIO will not be recognized. As follows: ···

4. In low-power deep sleep mode, it is impossible to wake up normally and restore the SWDIO function:

If the SWDIO cannot read the data in the above situation, you can use CH340 to clear the memory in the chip through UART in ISP mode;

①First, set boot0 high and boot1 low, and then power on to enter ISP mode;

② Press and connect TXD, RXD, GND, VCC, reset, etc. according to the board situation;

③Use FLY_MCU, see attachment

Connect the serial port, select DTR low level to reset, RTS high level to enter the Bootloader;

Click Clear Chip and press the reset button to erase the program in the chip;

Then you can read the ARM core through SWDIO... If the ROM and RAM are configured correctly, you can download again

5. About the routine USBD_CDC_ACM, enumerate a virtual serial port through USB

Install the GD_USB driver on the computer. After downloading the program, the computer cannot recognize it...

It can’t be done as described in the routine. I wonder how you guys deal with it?

The routine should show this, but I can't recognize it.

wangerxian

Thanks for sharing your experience!!!