Hello,
I'm using the NI-9402 to communicate to a sensor using I2C, and I'm having trouble writing 8 bytes to the sensor. I'm attaching my block diagram VI.
For this I2C communication, what I want to do is to write:
Slave Address 4C; Write = 0; ACK | 0x0D ; ACK | 0x40; ACK | Repeated Start |
Slave Address 4C; Write = 0; ACK | 0x0F; ACK | 0x42; ACK; Repeated Start |
Slave Address 4C; Write = 0; ACK | 0x20 ; ACK | 0x01; ACK | Repeated Start |
Slave Address 4C; Write = 0; ACK | 0x21; ACK | 0x08; ACK; STOP
However, with the code that I have, I am seeing on the scope:
Slave Address 4C; Write = 0; ACK | 0x0D ; ACK | 0x40; ACK | Repeated Start |
Slave Address 4C; Write = 0; ACK | 0x0F; ACK | 0x42; ACK; STOP
If I stop the program and run again, I see the other two commands:
Slave Address 4C; Write = 0; ACK | 0x20 ; ACK | 0x01; ACK | Repeated Start |
Slave Address 4C; Write = 0; ACK | 0x21; ACK | 0x80; ACK; STOP
I am not able to write 8 bytes of data. I only see either the first 4 bytes or the last 4 bytes. How do I fix this issue? Any help would be appreciated. Thanks.