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Altera_Forum's avatar
Altera_Forum
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15 years ago

NEEK on board USB blaster

Hi everyone, Can on board USB blaster on NEEK kit, be used to program / configure external FPGA board via J4 connector mounted on NEEK kit? Regards.
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi,

Thanks for reply.

I can not understand why it is not possible to program external FPGA via NEEK kit's on-board USB blaster.

What is the exact reason?

Let me explain my point on that.

If JP1 kept open, the Ep3c25 FPGA on NEEK will be disconnected from J4 JTAG connection. (i.e. TDO of USB blaster is disconnected from Ep3c25's TDI pin)

And all the required JTAG pins(@ 2.5 volt level) are accessible at J4 through which external FPGA can be configured.

Kindly enlighten me why this can not be performed in above said way?

Regards.