I cannot get the correct abs-data from tamagawa-N8401. I captured the waveform below when I sent CF = DATA0.
my question is:
1. The white square I marked, right or wrong?
2. What is the read circles? Should they be there? Will they effect SPI to receive the correct data?
3. I print tformatData.controlField and tformatData.statusField in Binary format after the code PM_tformat_receiveData(DATA0) .
controlFiled = 0010 0000b. statusFiled = 0000 0010. But they should be 0100 0000 and 0000 0100. ( I have no battery, so SF has 1 bit error ea1=1.)
It seems that an incorrect bit, insert to the data stream at the beginning.
Thanks for your reply.