phpbb3 ffh,ffh,ffh sb6121

JTAG software bug report.
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georgie21
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Joined: Sun May 24, 2020 3:51 pm

phpbb3 ffh,ffh,ffh sb6121

Post by georgie21 »

can someone help me diagnose this issue im getting when trying to detect please
usbbdm
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Joined: Mon Jul 18, 2005 9:33 pm

Re: phpbb3 ffh,ffh,ffh sb6121

Post by usbbdm »

It simply means there is something wrong. A lot of things can go wrong.
georgie21
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Posts: 4
Joined: Sun May 24, 2020 3:51 pm

Re: phpbb3 ffh,ffh,ffh sb6121

Post by georgie21 »

It worked last night using the usb to power pin 2. Today it wont work. Does anyone know if the 5v is too high? I heard 3.3v was what should be used but is that true? Could my jtag be bad? Any help would be appreciated.
Could my usbjtag be bad?
usbbdm
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Joined: Mon Jul 18, 2005 9:33 pm

Re: phpbb3 ffh,ffh,ffh sb6121

Post by usbbdm »

5v is too high. There is a video showing you how to diag the usb jtag or ulink. Do it to make sure your hardware is still good.
usbbdm
Junior Member
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Joined: Mon Jul 18, 2005 9:33 pm

Re: phpbb3 ffh,ffh,ffh sb6121

Post by usbbdm »

I have a video explaining the use of voltage.Actually sometimes a lower than 3.3v is better than 3.3v. Explained in HT802 programming.
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