about connect to P4040 using USB TAP

[liyj]

HI !

   I get into truble When  using P4040. I configure P4040  cfg_rcw_src[0:4] to hard - code of 1_1001 model(no burning RCW), can directly connected and download the CW project code using USB TAP  in codewarrior environment? And how to initialize the DDR memory contorller (DDR for asynchronous mode)?

[ufedor · Accepted solution]

> can directly connected and download the CW project code using USB TAP in codewarrior environment?

It should be possible if the processor is connected in accordance with the Design Checklist and Hardware Specifications.

Please check that RESET_REQ_B is not asserted after the POR completion.

>And how to initialize the DDR memory contorller (DDR for asynchronous mode)?

The DDR has to be initialized by the CodeWarrior using specified initialization script.

For a custom board it will be needed to create new script and in this case it is possible to use the "P4040DS_init_core.tcl" as a reference.