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Hi,I have PCB with FX3. When I try to start debud using OLIMEX ARM-USB-OCD-H debuger not work. In console window I see than no jtag connection. But when I connect FX3 to USB bus (to PC) all is work good.
I need debug FX3 not using USB connection. I need help)))
Solved! Go to Solution.
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Hi Evgen,
I have tried debugging cyfxbulksrcsink firmware example using FX3 DVK Board, in self power mode and J link Segger Debugger.
It is working fine for me. From this we can get to know that USB is not having any role in JTAG debugging.
It seems there are some power issue with your board or with the connections
Regards,
Rashi
Rashi
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Hi Evgen,
I have gone through your problem. I will come up with a solution by tomorrow (Monday).
Regards,
Rashi
Rashi
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Ok I`m waiting!
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Hi Evgen,
I wanted to know how are you powering the board. Bus powered or self powered?
'When FX3 is connected to USB, it works good' From this it seems like it drawing power from the bus.
Regards,
Rashi
Rashi
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Hi, my board has own power supply. Scheme of the power supply is the same as SuperSpeed Explorer Kit (+3.3 V and +1.2 V). VBUS is +5V
My board not used USB power!!!
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Hi Evgen,
Can you share the schematics of FX3 portion of your board?
Regards,
Rashi
Rashi
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no I can`t ((((
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Scheme is the same as Cypress dev board, with the same connection and STU.
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Hi Evgen,
I have tried debugging cyfxbulksrcsink firmware example using FX3 DVK Board, in self power mode and J link Segger Debugger.
It is working fine for me. From this we can get to know that USB is not having any role in JTAG debugging.
It seems there are some power issue with your board or with the connections
Regards,
Rashi
Rashi
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Your board is
EZ-USB® FX3™ Development Kit (CYUSB3KIT-001)?
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Yes
Regards,
Rashi
Rashi
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Are you debuged in Self-Power Mode?
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Hi Evgen,
Yes, i debugged cyfxbulksrcsink firmware on FX3 DVK board in self powered mode.
Regards,
Rashi
Rashi