文章详情

ID: 791
实例类型: faq
分类: Device Programming
相关: Cables
产品系列: 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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