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ADC interface with AD7091R-8

Arvind Upadhyay
Expert 1405 points
Other Parts Discussed in Thread: TMS570LS0714

Hi Friends,

Currently I am using TMS570LS0714 with AD7091R - 8 for analog data aquistion. I have connected 4 sine wave signals to ADC channel ch0,ch1,ch6,ch7. ch0,ch1 for frequency(zero-crossing) detection and ch6,ch7 for amplitude(peak) measurement. I am getting issues like not getting (4095) ADC count and (lowest enabled) channel values  are reflecting to all enabled channel. I wanted some help to solve this issues.

Here I attached mibspi.c, ad7091-R source code.

2475.adc7091r8.c