We have never used JTAG in production but are working on a new PCB which will have 3 PSoC's on it. Two will have the same code and one will have different code.
I see that the MiniProg3 supports JTAG. If we daisy chain JTAG to the 3 devices, will it support programming them (2 with the same code and one with different code)? Does the PSoC Programmer support this? Can it be automated to do all 3 with one command?
This information is given in the JTAG Programming Protocol Topic which is given in PSoC Programmers Help Topics.
There it is mentioned that-
Each device icon is selectable. You can program the selected target device using the Program button.