In this document:
The EL_POS register is claimed to be written when the motor is stopped (remark WS).
The section 11.1.2 says: "Any attempt to write the register when the motor is running causes the command to be ignored and the CMD_ERROR flag to rise"
But when I write EL_POS when the motor is stopped ( the motor is NOT running), the command is ignored and the CMD_ERROR flag rises too. I have done some experiments, and found that the EL_POS register could be written only when the motor is in HiZ state.
I have no idea if it is my fault or the document is wrong. Any suggestions would be appreciated. Thank you.