thank you for your reply! I checked it and changed it to CPOL = 0 and CPHA = 1. By setting the data transmission interval to 50 μs and ran the program. Then I could write and read registers!!!! However, when register reading was repeated for 40 minutes, it was not possible to observe the data output from DOUT. Is it because the register was read for a long time? best regards!!
↧