We have tried to get a temperature reading from the device over the I2C bus, but always read zeros.
Confirmed what we are reading using a scope on the clock and data signals. Also, we read the expected data from registers 0xFC, 0xFD, 0xFE, 0xFF.
Here is a sequence that we have tried:
0x82, 0x0E, 0x80 (soft reset)
0x82, 0x07, 0x80 (DRDY_ENABLE = 1)
0x82, 0x0E, 0x54 (1 sample every second, enable DRDY pin)
0x83, 0x04, read 1 byte (data bit 7 always 0 no matter how many times we read it)
Here is a second sequence that we tried (skip reading the status bit):
0x82, 0x0E, 0x80 (soft reset)
0x82, 0x07, 0x80 (DRDY_ENABLE = 1)
0x82, 0x0E, 0x54 (1 sample every second, enable DRDY pin)
0x83, 0x00, read 2 bytes (data always 0)
Here is a third sequence that we tried (one shot):
0x82, 0x0E, 0x80 (soft reset)
0x82, 0x07, 0x80 (DRDY_ENABLE = 1)
0x82, 0x0E, 0x04 (one-shot, enable DRDY pin)
0x83, 0x00, read 2 bytes (data always 0 no matter how long we keep reading it)
Is there a sequence that we should use to get valid temperature readings and the DRDY_STATUS bit on?
