Article Details

ID: 791
Case Type: faq
Category: Device Programming
Related To: Cables
Family: All ispClock

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What type of pull ups are needed on the JTAG signals?

The ispCLOCK devices should use the following resistors for any single device JTAG programming or multiple device JTAG chain.

Use 4.7k ohm resistors for each:
TCK = Pull-down
TMS = Pull-up
TDI = Pull-up
TDO = Pull-up

In addition, place a .1uF cap on VCCJ to GND
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