SparkFun Forums

[rbzhou]

Shortly after powering on, MICROMOD enters hardfault mode.



I show you the troubleshooting process to see if I have missed any details.
1. Power-on timing





2. Connection Diagram


3. SPI
The cloned SPE function board can read the phyid as 0x0283BC91.


Compared with the normal board, the SPI communication is inconsistent between the cloned board and the normal one.
BAD:


GOOD:



Please help, where is the problem?

[YellowDog]

None of your images are showing.
There's an eeprom on the board, did you clone it's contents too?

[rbzhou]

It was my negligence and the picture was not shown.
A 25MHz crystal oscillator can also start.
eeprom is also cloned into the board. It seems that eeprom is not used in the example.

hardfault mode

77.png

1.Power-on timing

11.png

22.png

https://drive.google.com/file/d/1l38HCp ... drive_link
https://drive.google.com/file/d/1WGLry_ ... drive_link

2. Connection Diagram
https://drive.google.com/file/d/1VLdA_u ... drive_link

3. SPI
The cloned SPE function board can read the phyid as 0x0283BC91.
https://drive.google.com/file/d/1z_OjyA ... drive_link

Compared with the normal board, the SPI communication is inconsistent between the cloned board and the normal one.
clone:
https://drive.google.com/file/d/1UKhVmx ... drive_link

normal:
https://drive.google.com/file/d/1PzwPwM ... drive_link