Part Number: ADS7953 Tool/software: WEBENCH® Design Tools Hi, I am trying to program ADS7951 to auto1 mode with range 2 i.e. 0 to 5 V with following sequence >> wr 0x4200 >> wr 0x8000 >> wr 0xFFFF >> wr 0x2C40 >> wr 0x000 all But when i vary my potentiometer connected to channel 4 at 2.5V itself the ADC converted value gets set to 4095 whereas it should get set to 2046 i.e half of the 5V count. I am able to change from 2.5 to 5 V in manual mode by writting 0x1840 in mode register but not able to change in auto mode 1. How can i verify that my device has switched to auto mode1? is the sequence that i am writiing to change to auto mode1 and range 5v right? Thank you Regards, Chandrakant Pal Thanks for your replay. I follow your instruction give the below instruction to configure the divice //we dont use GPIO, so omit the instruction of 0x4200 and 0x4001 >> wr 0x8000 // Program Register for Auto-1 Frame 1 >> wr 0xFFFF // Program Register for Auto-1 Frame 2, to select all 16 channles >> wr 0x2C00 // Enable Auto-1 Mode, counter set to lower programmed channel (Ch1) >> wr 0x2841 // Stay in Auto-1 Mode, enable increment counter, Range 2 operation and GPIO set as output high >> wr 0x000 all
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