Hi Team,
we are communicating through SPI and trying to read the control register-8 whose address is 0x0A to know the REV_ID.
we are transmitting 0x5400 and as per the datasheet expecting the received data as 0010 but the data we are receiving 1100, 1110, 1000 in different trials.
configurations done as- sleep(enabled), Idle clock ( Low to High), Clock frequency (1MHZ).
Could you please suggest us if we are missing anything? what may be the reason for not getting the expected data?
Thank you
Hi Ryan,
Thank you for the above reply, we are using our own board and trying to read the control register 8 by sending the value 0x540A (In this 1st byte MSB contains the read type & register address as 0x0A).
We received the data byte in MISO line as 0xC0FC-as per the below scope capture.
Regards
Lakshmi Teja
Hi Ryan,
Thank you for the above reply, we are using our own board and trying to read the control register 8 by sending the value 0x540A (In this 1st byte MSB contains the read type & register address as 0x0A).
We received the data byte in MISO line as 0xC0FC-as per the below scope capture.
attached the scope capture as per the above reply, could you please provide the information asap.
Regards
Lakshmi Teja
Lakshmi,
I think the issue is that data is captured on the FALLING edge of SCLK and not the rising edge.
If you shift your MOSI signal to the right and center it on the FALLING edge, it should work.
Regards,
Ryan
