Hi,
I am using the ADS1198 with my MCU, and the spi works well, I can read and write register, I also make sure it is correct by Oscilloscope.
But now I'm trying to test the system by MVDD, temperature and test signal, as you write in the data sheet, I changed the gain of ADS1198 to 1 and select the channel by CHnSET. But I found the MVDD and temperature are all overflow, the value is always 0x7fff, and the test signal is not ECG signal (configuration register 02h has also been changed). Is there any other change to the configuration when test these 3 signals? But I have already read all of the configuration, I did not find any solution. By the way, I am using the 3.3V as both Analog and digital VDD
please help me! thanks very much.
