LMX8410LEVM: LMX8410LEVM: Can't possible to read the value of registers over USBtoANY

Vitaliy Arshinnikov

Part Number: LMX8410LEVM
Other Parts Discussed in Thread: USB2ANY

Tool/software:

Dear,

I try to work with LMX8410LEVM eval board. And I use USBtoANY tool. The problem is that I have try to readback any of registers I have received 0x0000. I checked the SPI data and clk is ok. And I see the data at readback procedure is ok, but the TICS sofware say 0x0000 anyway. When I wroye all the registers eval board led is on and I think it os work correctly. Can't check, but I can see the reaction. So, could you advice how I can readback the registers correctly? After programming all the registers to default configuration from TICS menu it start correctly the LED has switched on. Then I wrote R0[2] to 0. So, to enable reading on MUXout(MISO) channel. Anyway I see the correct data on the oscilloscope during readback operation (everything like in datasheet), but the TICS software said the data is still 0x0000 in any of register.

7 months ago

0 Noel Fung 7 months ago

TI__Guru** 107030 points

Hi Vitaliy,

Is the MUXout pin shared with other SPI devices?

Can you probe to confirm there is no waveform coming out from the MUXout pin?

0 Vitaliy Arshinnikov 7 months ago in reply to Noel Fung

Prodigy 100 points

Hi Noel,

No, MUXout pin connected only to USBtoANY. And on the oscilloscope I see the correct waveform with corect bits according to the datasheet. I see the write to register operation and then the read from register operation and the bits data are similar and correct. The difference is only in write/read bit. But the TICS pro SW is still show the data 0x0000.

0 Noel Fung 7 months ago in reply to Vitaliy Arshinnikov

TI__Guru** 107030 points

Hi Vitaliy,

That means the chip responses to the read/write command but TICS Pro cannot retrieve the values. Let me check with the team on this. Which TICS Pro version are you using?