RTOS/AM5728: DSP PCIe demo MSI issue

vefone

Part Number: AM5728

Tool/software: TI-RTOS

Hi,

TI, I am using the PCIE_idkAM572x_wSoCFile_C66BiosExampleProject demo,Now I can get the msi from FPGA.

The FPGA send the MSI vector from 0 to 31 to the AM5728, and I want to distinguish which the MSI vector that the DSP got.I look into am5728 Technical Reference Manual < 24.9 PCIe Controller>,but I not find the register that I want.

Any suggestion? How can I distinguish the MSI vector from FPGA?

BR,

vefone

over 7 years ago

0 Biser Gatchev-XID over 7 years ago

TI__Guru**** 393215 points

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

0 lding over 7 years ago in reply to Biser Gatchev-XID

TI__Guru* 95265 points

Hi,

You can check PCIECTRL_PL_MSI_CTRL_INT_STATUS_N. The example code in the PCIE_sample_board.c:
static void PlatformMsiIntxIsr (uintptr_t vhandle)

Regards, Eric

0 vefone over 7 years ago in reply to lding

Expert 2440 points

Hi,

Eric, I had checked the PCIECTRL_PL_MSI_CTRL_INT_STATUS_N,the FPGA send the different msi vector,when the dsp got the msi，the PCIECTRL_PL_MSI_CTRL_INT_STATUS_N is always be 0x00000001.

Does it right? Does it means the DSP got the vector 0? the 31:0 bits of PCIECTRL_PL_MSI_CTRL_INT_STATUS_N means the interrupt status of msi vector 31 to vector 0?