T2080 REBOOT

JHJ — Wed, 05 Jul 2023 08:58:40 GMT

Hello.

A reboot occures while using the T2080.

We did two tests. 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.

topic T2080 REBOOT in QorIQ