topic Re: T2080 reboot in T-Series

T2080 reboot

JHJ — Wed, 05 Jul 2023 08:50:10 GMT

Hello.

A reboot occures while using the T2080.

We did tests under two conditions. The contents of the test are as follows.

No.1 PCIe single test - In this test, the frequency of rebooting is very low.

1. DMA(From FPGA to CPU) interface : Gen1(2.5GT/s) * 4 lane or Gen2(5.0GT/s) * 4 lane

2. PCIe interrupt cycle : 300us under

3. Data transmission amount per PCIe interrupt cycle : 50Kbyte

No.2 PCIe + Local Bus - In this case, a reboot occurs within 1 hour.

1. DMA(From FPGA to CPU) interface : Gen1(2.5GT/s) * 4 lane or Gen2(5.0GT/s) * 4 lane

2. PCIe interrupt cycle : 300us under

3. Data transmission amount per PCIe interrupt cycle : 50Kbyte

4. Local Bus(From FPGA to CPU) interface : 18.75MHz

5. Local Bus interrupt cycle : 10ms

6. Data transmission amount per Local Bus interrupt cycle : 100Kbyte

1. Does a reboot occur within an hour? (when multiple interrupts are used simultaneously between FPGA and CPU.)

2. Rebooting did not occur when combining the above two interrupts into PCIe interrupts. Please check if this is a reasonable method or not.

We wonder if you guys have had this kind of problem and hope you can suggest a solution.

Please answer as soon as possible. Thank you.

SebastianG — Fri, 07 Jul 2023 18:23:31 GMT

hello @JHJ,

I would like to inform you that I'm working on your question, I will let you know as soon as I have an update.

Thank you so much for your patience

Regards,

Sebastian

SebastianG — Thu, 13 Jul 2023 16:27:39 GMT

Hello @JHJ,

Apologies for the delayed response

Could you please share with me a log for each case?

JHJ — Fri, 21 Jul 2023 08:46:36 GMT

Apologies for the delayed response.

This is the CPU(T2080) log checked through Teraterm.

ctDevShutdown

ctDevPciSdlcShutdown?

I'll let you know if there are any more logs later.