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Our custom hardware will have 5 devices in the JTAG chain, three TMS320DM6467, a Xilinx FPGA and its boot PROM. Please confirm that the following steps are correct in CCS v4.1.2: (1) Create a custom target configuration. (2) Click the Advanced tab. (3) Click the New button and select XDS510USB connection. (4) Click the Add button to add three DM6467 devices. (5) Click the Add button to add two "Bypass" CPU devices.
Also, please confirm the following:
- I assume I will be able to connect to any of the three DM6467 devices (one device at a time).
- I assume the first device in the JTAG chain needs to be the first device in the target config list.
- I assume I need to use a "Bypass" device for any device in the JTAG chain that will not be connected to via CCS.
Your assumptions are correct. You will need to know how large of a bypass to use for the FPGA. You will also be able to connect to all of the DM6467s at the same time.
Thanks. I'm sure I will also need to know the bypass size of the 6467 when I am setting up the Xilinx programmer. Do you know how large the bypass needs to be for one 6467?
6-bits for the whole 6467. Seems small but that is because it has something called ICEPick which is a scan path router in it.
John