RTOS/AM5728: PCIe MSI interrupts delayed

Manjula KS

Part Number: AM5728

Tool/software: TI-RTOS

Hi,

As in the example code I have registered the ISR for the MSI interrupts. But the PCIE_WINDOW_MSI_ADDR i have changed to 0xFEE0F00C. DSP is running as RC and FPGA is running as EP. EP sends msi1 and msi2 interrupts. but RC is receiving it at a delay of 122seconds. Any reason why is this delay and is anything wrong in the RC.

over 8 years ago

0 Biser Gatchev-XID over 8 years ago

TI__Guru**** 393215 points

The RTOS team have been notified. They will respond here.

0 lding over 8 years ago in reply to Biser Gatchev-XID

TI__Guru* 95265 points

Hi,

122 seconds? I am not sure the reason. The PCIE_WINDOW_MSI_ADDR is used by both RC and EP side, the TI example code used an address #define PCIE_WINDOW_MSI_ADDR 0x02000000U, can you try to use some address like this to see the interrupt latency is normal?

Regards, Eric

0 Manjula KS over 8 years ago in reply to lding

Intellectual 430 points

This issue is solved as it was problem with fpga. I am still using the address 0xFEFOFOOC. Is it ok? Is there any reason i should use address 0x02000000

0 lding over 8 years ago in reply to Manjula KS

TI__Guru* 95265 points

Yes, you can use that address 0xFEF0F00C.

Regards, Eric

Processors

Processors forum

RTOS/AM5728: PCIe MSI interrupts delayed