We are working with MAX31888 sensor without problems.
Recently, we received a slot of MAX31888 (with different datecode), we found there are something strange.
The old MAX31888 data pattern is like:
RESET->PRESENCE-> SKIP ROM(0xCC) -> 0x33 -> 0x20 -> 0x03 , then receive 0xAA -> 0x0F -> 0x00
However, the new datecode slot MAX31888 data pattern is like:
RESET->PRESENCE-> SKIP ROM(0xCC) -> 0x33 -> 0x20 -> 0x03 , then receive 0xAA -> 0x07 -> 0x00
The data 0x07 should be referred to GPIO_CONTROL (0x21), correct?
If so, how come bit 1 and bit 3 are not the same? bit 1 and bit 3 are both refer to GPIO1_LL and should be the same value.
Please help and correct me if get something wrong.
Thanks!!