flote21
Advanced Member level 1
Hello everybody, I am facing an issue with the following ADC: ADS7138...
See below my schematics:
I was able to communicate with the part because adter sending the next command: RIB 0x2E 0x1000 1 => Result: 0x81
However after sending the next settings to configure the ADC in a manual way, I alwas read 0x00 in all the channels (I have already checked that the input voltage on AINXX are in the range of 1V - 1v8 :
1) All AINxx configured as Analog inputs:
WIB 2e 0805 00
2) Send the calibration command:
WIB 2E 0801 02
3) CON_MODE = Manual:
WIB 2E 0804 00
4) SEQ_MODE = Manual:
WIB 2E 0810 00
5) Select Channel to read (AIN0):
WIB 2E 0811 00
6) Read the register of AIN0:
RIB 2E 10A0 1
Result=0x00 for all the AIN. I have tried to enable the FIX PATTERN register (WIB 2E 0802 80) and I read always 0x00 too.
Any idea about what is going on?
Thanks in advance.
Greetings.
See below my schematics:
I was able to communicate with the part because adter sending the next command: RIB 0x2E 0x1000 1 => Result: 0x81
However after sending the next settings to configure the ADC in a manual way, I alwas read 0x00 in all the channels (I have already checked that the input voltage on AINXX are in the range of 1V - 1v8 :
1) All AINxx configured as Analog inputs:
WIB 2e 0805 00
2) Send the calibration command:
WIB 2E 0801 02
3) CON_MODE = Manual:
WIB 2E 0804 00
4) SEQ_MODE = Manual:
WIB 2E 0810 00
5) Select Channel to read (AIN0):
WIB 2E 0811 00
6) Read the register of AIN0:
RIB 2E 10A0 1
Result=0x00 for all the AIN. I have tried to enable the FIX PATTERN register (WIB 2E 0802 80) and I read always 0x00 too.
Any idea about what is going on?
Thanks in advance.
Greetings.