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Original question:

AFE5809EVM: Profile RAM and Filter Coefficient for AFE 5809

AFE5809EVM: AFE5809EVM GUI and HSDC GUI using problem

FENG SUN57683
Intellectual 895 points
Part Number: AFE5809EVM

hello,

     I have just got a AFE5809EVM and a TSW1400 EVM, and I am trying to carry out experiments in the AFE5809EVM Evaluation Module user guide(slou338a). I have big trouble in using the AFE5809EVM GUI.

My set up is exactly as Figure 10, I can capture the input 10MHz sine wave in TSW1400 EVM GUI as figure 11, when I disable the DIG_DEMODULATOR . However, when I enable it, I often get 0 sequences, i mean if I change a register value, the codes I get in the TSW1400 EVM GUI shifts from sine wave to all zeros, but if I change the register value back, it is still all zeros.

Sometimes I can get the 10MHz sine wave(if I am lucky), it is always in 2's comp. and changing the ADC output FORMAT or BIT ORDER have no effect.

There are some demodulator test modes in the GUI, but I have NOT  successed in carrying out any of them. IT always generate some unreasonable results that are hard to explaine to me. Also I can't get any data in the AFE5809EVM GUI by clicking "TSW CAPTURE" button.

can someone give me a step by step guide for conducting the experiment and tell me where I was wrong, and how to change the demodulator registers in the AFE5809EVM GUI? that would be of great help. Thanks a lot!

  • 0
    Intellectual 895 points
    also, it seem that I can't directlly access to the registers using the GUI. every time I read from an address, I get 0x0, or 0xFFFF.
  • 0 in reply to FENG SUN57683
    TI__Mastermind 49796 points
    Hello Feng,

    As I mentioned in the other post related to the AFE5809EVM GUI issues, I will take a look at your questions and will get back to you within a week.
  • 0 in reply to Praveen Aroul
    Intellectual 895 points

    Hi,

     thanks for the reply. Now I have went through some of the tests in the GUI, but still have some problems.

    1.I can capture the TSW wave in the 5809 GUI now.  I installed these two GUIs in different locations ,turns out I have to manually change the dir of the datapath in the 5809 GUI.

    2. Still I can't read register data in the 5809 GUI.

    3. I am sure that there are some bugs in the 5809 GUI, for example, the shift_scale_en checkbox dosen't work.

    4. I am not able to successfully get the decimation filter coefficients in the coefficients test mode, I always lost the first row(relpaced by 8 zeros). However, if I turn the 5809 into the M=4 both I and Q test mode, and then enable the COEF_TM register bit, I am able to get all of the 32 coefficients.

    5. the 5809 GUI is still not so friendly to me, some times I get data that I think is not consistent with what it meant to, especially for the modulator_bypass, full_lvds, decimation_bypass .... registers.  have you ever fully tested all these settings?

    6. Right now what I am really care about the most is the power comsuption of 5809. As I have mentioned in one email, it is much higher for the 5809EVM than in the datasheet.

    Thanks you!

    Regards!

  • 0 in reply to FENG SUN57683
    TI__Intellectual 2885 points
    Hello Feng,

    I will be closing this thread due to inactivity, if you have further questions feel free to ask a new question. Thanks