Re: [beagleboard] BBG fried. Hint needed to undestand why.

2016-03-13 Thread Jordi Segura
s will typically cause ringing because of > impedance mismatch and this can cause the voltage to exceed 3V3 or go below > 0V. This will also cause processor failure. > > Regards, > John > > > > > On Mar 11, 2016, at 3:32 PM, Jordi Segura > > wrote: > > >

Re: [beagleboard] BBG fried. Hint needed to undestand why.

2016-03-11 Thread Jordi Segura
input. When both BBB/BBG board are > fully booted, and their RX pins configured as inputs, set the GPIO_EN pins > high, so that the buffer is no longer in tristate. > > Regards, > John > > > > > On Mar 11, 2016, at 8:19 AM, Jordi Segura > > wrote: > > Th

Re: [beagleboard] Re: BBG fried. Hint needed to undestand why.

2016-03-11 Thread Jordi Segura
dea when connecting I2C driven systems (PCA9517 works > well). > > RS-232 drivers work the same way, and in fact, would be very tolerant > of voltage level differences. I'd suggest a MAX232 style chip. The > outputs of the chip are +/- 9 volts, so absolutely cannot be conne

[beagleboard] Re: BBG fried. Hint needed to undestand why.

2016-03-11 Thread Jordi Segura
Related to my unanswered problem below, main point I want to know is: Is it safe to connect directly the same Tx external signal simultaneously to a couple of BBs ? Cheers, Jordi El dilluns, 7 març de 2016 0:11:32 UTC+1, Jordi Segura va escriure: > > My BBGreen got fried (when I power it

Re: [beagleboard] BBG fried. Hint needed to undestand why.

2016-03-07 Thread Jordi Segura
No, no magic jack plugged in :) El dilluns, 7 març de 2016 14:18:30 UTC+1, lazarman va escriure: > > You didn't have a magic jack plugged in did you? > > Sent from Yahoo Mail on Android > <https://overview.mail.yahoo.com/mobile/?.src=Android> > > On Sun, Mar

Re: [beagleboard] BBG fried. Hint needed to undestand why.

2016-03-07 Thread Jordi Segura
No, no magic jack plugged in :) El dilluns, 7 març de 2016 14:18:30 UTC+1, lazarman va escriure: > > You didn't have a magic jack plugged in did you? > > Sent from Yahoo Mail on Android > > > > -- For more options, visit http://beagleboard

[beagleboard] BBG fried. Hint needed to undestand why.

2016-03-06 Thread Jordi Segura
My BBGreen got fried (when I power it up it just dims once the power led and that's all it does). an someone explain me what I did wrong so it won't happen to me or others again? Explanation of what I did: The BBG died after several days working 24/7, powered up from a power supply 5V

[beagleboard] Re: Beaglebone Black won't power on, did I do something wrong? :(

2016-03-03 Thread Jordi Segura
My BBGreen got fried (when I power it up it just dims once the power led and that's all it does). Can someone explain me what I did wrong so it won't happen to me or others again? Explanation of what I did: The BBG died after several days working 24/7, powered up from a power supply 5V 2A