I see your point Chad. Actually now I am trying to upgrade/downgrade the firmware in A position + external supply (USB 5V 1A to IOIO JST connector, homemade adaption made by myself, works fine) but still no luck... I don't know what to do anymore... I think I have tried almost everything!
Domingo, 21 de Setembro de 2014 22:49:44 UTC+1, Chad Kennedy escreveu: > > > My experience with PIC chips has taught me that "not enough power" > during the burn/flash/programming time will give significantly > inconsistent results. Your problem is sounding more like that since > you've basically done it on two IOIOs and not a procedural problem like > I faced. At the time of updating the firmware there was insufficient > power applied or the IOIO was in H instead of A - these are my theories. > I would encourage you to re-update and/or roll back to a prior > versionsV0330. fwiw I used a 9V battery and it did not last long > powering the IOIO OTG or for that matter any PIC chips from my projects > I used prior during the flasing process. I dropped it quickly and found > a usb power supply terminated pins on it and connected the IOIO. My plug > runs 5V DC @ 2A. Try updating again verifying all power needs. I am > going way out on a limb for this IOIO OTG PIC model but I know my other > PICs require 12+ Volt minimum to achieve a good flashing, the PC's USB > will provide some power, but is likely needing to be supplemented with > external. Again stating this from experience and not looking at the > IOIO's PIC's specifications/requirements. > > > On 9/21/2014 2:12 PM, AF wrote: > > black7, > > > > Both boards are showing inconsistent behaviour. I only managed once to > show the app firmware on ioiodude for one of the boards (don't know why it > worked that time, the procedure was the same for both boards). Now I can't > show it for both boards and one of them sometimes works with my smartphone > other times doesn't. The other one doesn't work at all. This makes no sense > I know... > > And about upgrading the firmware with the external power supply: that's > what I was trying to say on the first post, it is highly probable that I've > done that and also with H position on switch... I can't remember but I > think I've done it. > > At first the COM ports only appeared in H position. And when in A > position they appeared as unknown devices. Now after I did all those tries > and procedures I managed to make them recognized as COM ports in both H or > A positions. > > > > ____________________________________________________________ > The End of the "Made-In-China" Era > The impossible (but real) technology that could make you > impossibly rich. > http://thirdpartyoffers.netzero.net/TGL3241/541f47d59ba4247d57d79st03duc > -- You received this message because you are subscribed to the Google Groups "ioio-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/ioio-users. For more options, visit https://groups.google.com/d/optout.
