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AFE7950: AFE FROM FILE Read Check Fail: 0x00a4[0:7] = 0x0055

YuukiWatanabe
Prodigy 150 points
Part Number: AFE7950

Tool/software:

Please tell me how to resolve the following error

↓

AFE ID: 0[../src/Afe79xx/Src/tiAfe79_basicFunctions.c][ti_afe79_afeSpiCheckWrapper][559]INFO:addr[0x00A4], lsb[0], msb[7], data[0x00] not matching with expected value[0x55]

AFE ID: 0[../src/Afe79xx/Src/tiAfe79_basicFunctions.c][ti_afe79_afeSpiCheckWrapper][563]SPI READ Check: afeInst: 2097208, addr: 0xA4, lsb: 0, msb: 7, Read Value: 0x0, Expected Value:0x55

AFE ID: 0[../src/Afe79xx/Src/tiAfe79_init.c][ti_afe79_afeDeviceBringup][569]ERROR:AFE FROM FILE Read Check Fail: 0x00a4[0:7] = 0x0055

AFE ID: 0[../src/Afe79xx/Src/tiAfe79_init.c][ti_afe79_afeDeviceBringup][434]SPI Comment: #Read jesd_fs_state=0x0; Address(0xa4[7:0],0xa5[7:0])

Other than that, there are no errors

  • 0
    TI__Expert 4805 points

    Hi Yuuki,

    This read check failing means that the FS state did not pass and your JESD link is not up. Since you said that there are no other errors a common cause for this would be that the DAC SYNC signals are not properly connected. Could you please try the following:

    1. Could you verify that the DAC SYNC signals are being mapped correctly on both the FPGA and the AFE side?
    2. Could you try proving the SYNC signal as close to the AFE as possible an report on its state before, during and after trying to do link establishment?
    3. Could you also share your AFE configuration python script? If you would not like to put it on the forum, we can reach out through email.

    Best,

    Camilo