Other Parts Discussed in Thread: ADS7961, ADS7955
Tool/software:
I combines Renesas microcomputer RH850 and ADS7961
After power up, configure the device/ADS7955 to operate in manual mode without any other configuration.
You are trying to change another channel (for example, channel 2).
But in the next frame, the channel is not changed.
The device keeps output channel 0 (default).
Also, if you apply a voltage only to CH0 when you are outputting another channel, the voltage will be detected even though the channel is not CH0.
Datasheet says ;
"The device continues its operation in Manual mode channel 0 through out the programming sequence and outputs
valid conversion results. It is possible to change channel, range, GPIO by inserting extra frames in between two
programming blocks. It is also possible to bypass any programming block if the user does not intent to use that
feature." (SLAS605A,p.27,Figure 49. Device Power-Up Sequence,note (1).)
Is any other setup required?
Here's a snippet of the actual source code