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66AK2L06: RFSDK DEMO1 Adaptation to ADC31JB68EVM

Part Number: 66AK2L06
Other Parts Discussed in Thread: RFSDK, , DAC38J84

Hi,

We are trying to use 66AK2L06 on TCIEVMK2L to capture ADC output through JESD204B, There is no problem running RFSDK demo by selecting 1x1-2xLTE60-HC-JESD121121x-JESDlpbk.

From there, we moved on to use 1x1-2xLTE60DEMO1-HC-JESD121121x as template for the next step. We understand that the demo was built targeting ADC12J400 and DAC38J84. In our case, there is no DAC in plan. We have not finalized an ADC, but we intend to build a prototype using ADC31JB68EVM that is available to us.

We are aware that ADC31JB68EVM does not dock onto TCIEVMK2L directly. Modification has been made to connect through FMC1 with external clocks supplied to both boards. ADC31J68EVM GUI shows that the link can be established before the radio functions are called out.

Questions:

1) Can demo1 work without DAC? Any changes required from configuration files front? We can drive the ADC from a function generator

2) After "playback start" is issued, the link status in ADC31J68EVM GUI turns off. We tried to pick up sections in the "use-case" config of 1x1-2xLTE60DEMO1-HC-JESD121121x that might be relevant and changed as listed below. The link is still bad. What are we missing? Does tgtcfg play a role?

"dfeConfig": {  "jesdConfig": {   ----> Enable [0] and [1]?

"jesdSettings": { "DL_jesd_F": 1,  ----> Is this parameter correspond to the number of octet/lane?

Thanks for your help.