Can't initialize USPi on Raspberry Pi 3B+

[Leonard-Blazevic]

Hi,

Before trying to use your library inside a project, I tried to run the ethernet sample you provided to get familiar with the code, but when I build it as is, I don't see any output and the board seems stuck.

I have tracked down the problem to this function call in the timer initialization => https://github.com/rsta2/uspi/blob/master/env/lib/timer.c#L306 which seems to never finish.

If I comment out that line, I see the following output:

After some debugging, I think it is related to the fact that the timer is not properly initialized which causes problems in the USB initialization and the DeviceNameServiceGetDevice function to never find any devices.

I added the following lines to the Rules.mk:

AARCH64 = 0 RASPPI = 3 PREFIX = arm-none-eabi-

Do you have an idea how could I go about fixing this issue? Thanks, Leonard

[rsta2]

Unfortunately I cannot reproduce this issue. I built the Ethernet sample with the same settings with a GCC 9.2.1 toolchain again and tested it with a firmware from Feb 12 2020 from here and it works.

The TimerMsDelay() function is using the system timer and simply reads the CLO register of this device, which returns the current lower 32 bits of a free running 1 MHz timer. There is no initialization needed to start this timer.

Can you try the firmware I mentioned above? How did you debug this issue?