cy7c65215 Jtag clock speed, is it fixed at 450KHz?

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YuCh_4287461
Level 1
Level 1

We use openocd "adaper_khz" to set cy7c65215's jtag clock speed. But the command takes no effect, though openocd doesn't report errors. Measuring the jtag clock with oscilloscope, it is always 450khz. Can we change it?

Thanks.

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1 Solution
YatheeshD_36
Moderator
Moderator
Moderator
750 replies posted 500 replies posted 250 solutions authored

Hello,

The JTAG operational frequency is fixed at 400 KHz which  is used for code flashing.

Please refer to JTAG Specifications in CY7C65215 datasheet.

Best Regards,

Yatheesh

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2 Replies
YatheeshD_36
Moderator
Moderator
Moderator
750 replies posted 500 replies posted 250 solutions authored

Hello,

The JTAG operational frequency is fixed at 400 KHz which  is used for code flashing.

Please refer to JTAG Specifications in CY7C65215 datasheet.

Best Regards,

Yatheesh

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Actually, it is 450KHz. Thanks.

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