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LMX2594EVM: Controlling LMX2594EVM by own software

Part Number: LMX2594EVM
Other Parts Discussed in Thread: USB2ANY, LMX2594

Hi team,

My customer purchased the EVM and he is facing a problem as below.

[Situation]

Due to the convenience of the experiment, my customer is trying to set up and control the system from his own software instead of using TICS.

As you know, LMX2594EVM comes with a reference board called ReferencePRO for USB-SPI conversion.

Since it is seen as USB2ANY from TICS, he was able to read the serial number of ReferencePRO from his own program by referring to the USB2ANY API reference.

However, he is unable to access the LMX2594 which is connected via SPI from ReferencePRO.
Specifically, when he tried to read the register, he couldn't get nothing using the USB2ANY SPI API, u2ASPI_WriteAndRead.
Looking at the SPI check pin on the LMX2594EVM board with an oscilloscope, there is no signal waveform at all.

It's not that it fails to read, but sending command doesn't seem to be working .

When he tried to read the register with TICS, he was able to see the signal waveform, so it is not a hardware problem, but a software problem.

[Questions]

How can he access, configure and control the LMX2594EVM?
What value should he give to u2aSPI_Control?

Best regards,

Shota Mago