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AWR1843: Meet calibration error when using mmw demo in SDK 3.4, but no error with SDK 3.1

Chris Meng
Mastermind 37726 points
Part Number: AWR1843

Hi,

My customer met calibration error when using mmw demo in SDK 3.4 on their own board (production chip). They tried same demo on one old AWR1843BOOST revA and met same problem. Pls find detail error below.

We checked the error code and found it means below calibration error.

#define RL_RET_CODE_TX_PWR_BOOT_CAL_NOT_DONE          (125U) /* TX power run time calibration was
                                                                requested but boot time calibration
                                                                was not performed */

We tried mmw demo in SDK 3.1 on the customer's AWR1843BOOST board and it works ok. It has the point cloud output.

BTW, I also have an AWR1843BOOST board revA, but it can work ok with mmw demo in SDK 3.4. Why?

Would you pls kindly advise what may cause this calibration issue?