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CYUSB3014 Jtag debug using CY7C65215?? | Cypress Semiconductor

CYUSB3014 Jtag debug using CY7C65215??

Summary: 1 Reply, Latest post by Madhu Sudhan on 15 Dec 2015 06:33 AM PST
Verified Answers: 0
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ZJL's picture
2 posts

I test my CYUSB3014 PCB Board, and use JTAG Port to debug, just like CYUSB3KIT-003 EZ-USB® FX3 SuperSpeed Explorer Kit. I have another CY7C65215 Board configure SCB1 as JTAG mode. My CYUSB3014 Board and CY7C65215 Board connected use TDI, TDO, TCK, TMS, TRST_N, GND.

When I use the method recommended in the CYUSB3KIT-003 user guide. The first step, Eclipse run the external tools, and give bellow message. It seem OK.


Open On-Chip Debugger 0.8.0 (2014-12-03-15:43)

Licensed under GNU GPL v2

For bug reports, read

Warn : Adapter driver 'cy7c65215' did not declare which transports it allows; assuming legacy JTAG-only

Info : only one transport option; autoselect 'jtag'

adapter_nsrst_delay: 200

jtag_ntrst_delay: 200

adapter speed: 1000 kHz

trst_and_srst srst_pulls_trst srst_gates_jtag trst_push_pull srst_open_drain connect_deassert_srst

RCLK - adaptive

adapter speed: 1000 kHz

Info : clock speed 1000 kHz

Info : JTAG tap: fx3.cpu tap/device found: 0x07926069 (mfg: 0x034, part: 0x7926, ver: 0x0)

Info : Embedded ICE version 6

Info : fx3.cpu: hardware has 2 breakpoint/watchpoint units


But when I debug the project, it’s not stable. Sometimes, it report failed load; Sometimes, it go into the debug mode,the first three pictures are the debug mode capture. But when do Resume, it will report Target request failed as the fourth capture.

But when I use CYUSB3KIT-003, it works fine.

I check the connection between CYUSB3014 and CY7C65215, and Eclipse configure, and CY7C65215 configure. It seem all good.

Who can tell me why?

mady's picture
Cypress Employee
964 posts


Please contact Cypress Tech Support regarding this as this requires more details debugging.


- Madhu Sudhan

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