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I own a ULINK Pro. Managed to get ETM trace working on my STM32F4, but when I stop the CPU or run into a breakpoint, I can only look back about 1ms (at 168MHz) or about 2ms at 100MHz. How much I can see in the trace window seems to depend on the complexity of the code. More function calls or even function pointers seem to reduce the number of instructions.
It seems to me that I can not use streaming trace, but only the buffer in the ULINK Pro, which seems to be very small (around 64KB?) With streaming trace, the number of instructions should be unlimited since my harddrive can be used as buffer.
Any way to get streaming trace up and running?
Isn't the ULINK Pro connected to the PC using USB2? Which mean it can not transfer omre than about 40MB/s to the PC.
Per,
my PC does not even have an old USB-Full speed port. It is connected via High Speed USB (USB 2.0). I have just connected a USB Analyzer, and it seems ULINK Pro is transferring data during execution, but not very many, only about 1 MB/sec, which is less than required for streaming trace.
Is there a way to get a new firmware for my unit? Does it work for you?
Thanks