Vonn
Full Member level 4
Hi all ,
Iam doing a new project on FPGA . I used to make a port on the FPGA for debugging and connect it to PC using serial or parallel interfaces to debug the code while it's running using simple GUI (VB) .
Now I thought that , why don't I use the JTAG port which is implemented in the FPGA as a debugging port and make an intrface board to connect it using serial interface .
1- Has any body did it before ?
2- Do you know if the synthesizer will allow to assign to the JTAG pins
3- Is there a special commands in the VHDL to write to the JTAG port ?
4- Do you have a sch. for interface board from JTAG to serail RS232 and vise versa
thanks
Iam doing a new project on FPGA . I used to make a port on the FPGA for debugging and connect it to PC using serial or parallel interfaces to debug the code while it's running using simple GUI (VB) .
Now I thought that , why don't I use the JTAG port which is implemented in the FPGA as a debugging port and make an intrface board to connect it using serial interface .
1- Has any body did it before ?
2- Do you know if the synthesizer will allow to assign to the JTAG pins
3- Is there a special commands in the VHDL to write to the JTAG port ?
4- Do you have a sch. for interface board from JTAG to serail RS232 and vise versa
thanks
