Hi all!
A stupid mistake on the boot.py forced me to do a "safe" boot. Connected the 3.3v to the GP28, did a reset and it is not starting anymore.
Please, does someone have any trick or advice to try on the board ?
Thanks
Brick
- danicampora
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Re: Brick
Hi,
Are you sure you didn't connect VIN instead of 3V3 by mistake? What do you mean it's not starting anymore? In safe boot or in normal mode?
Does the LED flash?
Cheers,
Daniel
Are you sure you didn't connect VIN instead of 3V3 by mistake? What do you mean it's not starting anymore? In safe boot or in normal mode?
Does the LED flash?
Cheers,
Daniel
- danicampora
- Posts: 342
- Joined: Tue Sep 30, 2014 7:20 am
- Contact:
Re: Brick
Can you disconnect everything from the board, and just power it with GP28 connected to 3V3? Do you see the blinking pattern described by the docs in the boot modes section?
Cheers,
Daniel
Cheers,
Daniel
Re: Brick
Hi,
May be, I've reproduced the cause...
On the process of wiring the 3V3 with the GP28, I first inserted the cable on the 3V3 hole, on the way to insert the second part of the cable, if it touches the processor shield, seems a kind of shortcut is made (i'm not an expert, but seems right to me that shield is wired to ground).
So i've repeated the process of SAFEBOOT various times without luck.
Any advice, any idea ?
Thanks
May be, I've reproduced the cause...
On the process of wiring the 3V3 with the GP28, I first inserted the cable on the 3V3 hole, on the way to insert the second part of the cable, if it touches the processor shield, seems a kind of shortcut is made (i'm not an expert, but seems right to me that shield is wired to ground).
So i've repeated the process of SAFEBOOT various times without luck.
Any advice, any idea ?
Thanks
Re: Brick
Shorting the 3.3 output to GND should not hurt. The 3.3 regulator of the WiPy is current limited at 2.8 Amps and thermally protected, the switching transistor at the input is rated at > 6 Amps. That looks all pretty robust. Can you tell, whether there is still 3.3 V on the output? How do you supply the Wipy? Is Vin fine?
Re: Brick
Hey!Roberthh wrote:Shorting the 3.3 output to GND should not hurt. The 3.3 regulator of the WiPy is current limited at 2.8 Amps and thermally protected, the switching transistor at the input is rated at > 6 Amps. That looks all pretty robust. Can you tell, whether there is still 3.3 V on the output? How do you supply the Wipy? Is Vin fine?
Sorry, there has been a while, this afternoon i'll do the tests.
Thanks