AM2634: ADC read error in differential mode

Hi,

I have modified the example project adc_multiple_soc_epwm_am263x-cc_r5fss0-0_nortos_ti-arm-clang to have differential ADC channels on ADC1. SOCs are configured to ADCIN0 & ADCIN1, ADCIN2 & ADCIN3, ADCIN4 & ADCIN5. After scaling the ADC digital value to equivalent voltage, it always read 0.7v when both the differential input pins of a SOC are connected to GND. This behaviour is consisted for ADC1, all the configured SOCs, where as the same configuration and the scaling works for ADC0 all SOCs.

What could be the issue?

I am using mcu_plus_sdk_am263x_08_04_00_17 with CCS12, eval board PROC110E2 with TMDSHSECDOCK.

Thanks

Baljeet