shaiko
Advanced Member level 5
Suppose I have a PCB with a dozen devices that support JTAG scanning/programming.
I want to avoid chaining all the devices in a typical serial JTAG chain because I'm afraid of possible conflicts between them.
The trivial (but rather inelegant) solution will a dozen JTAG connectors - one connector for each JTAG capable device.
But I was thinking - is there somekind of "JTAG Switch" that can be used together with only one JTAG connector and multiplex it to the correct device according to the data input to the TDI port ?
I want to avoid chaining all the devices in a typical serial JTAG chain because I'm afraid of possible conflicts between them.
The trivial (but rather inelegant) solution will a dozen JTAG connectors - one connector for each JTAG capable device.
But I was thinking - is there somekind of "JTAG Switch" that can be used together with only one JTAG connector and multiplex it to the correct device according to the data input to the TDI port ?