[beagleboard] Re: Beagleboneblack board is not booting from emmc and SD card.

2017-10-09 Thread TitusRathinaraj Stalin
Hi Mala,
Thanks for your reply and appreciate your help on this.
Its started working once I try to boot from UART.
I am not sure what is the problem, I think it could be board or chip issue 
and not in SW.

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[beagleboard] Beagleboneblack board is not booting from emmc and SD card.

2017-09-28 Thread TitusRathinaraj Stalin

Hello Experts,
So far my BBB board is worked and able to boot from both eMMC and SD card 
but suddenly, my board is not booting any more, tried with SD boot too 
(press and hold the S2 button while power ON) and it doesn't help.

I am getting nothing on console when I try to boot from eMMC (default, no 
button press)
I am getting ">" or "<" character on console when I try to boot from SD 
card (S2 button press)

Can you please help me to findout the issue and how can I debug this issue ?
Thanks for your help.

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[beagleboard] How to control the voltage (0V to 10V) using PWM on beaglebone black board

2017-09-02 Thread TitusRathinaraj Stalin
Hello Experts,

I have a board (with some opamps) which is connected to BBB (P8_13), and 
want to get 0-10V from that board.

With this code, I'm getting 7V DC from my external board, so how can I 
write these values '*duty_cycle'* and '*period*' ??
*b.analogWrite('P8_13', 0.7, 2000.0, printStatus);*
http://beagleboard.org/support/bonescript/analogWrite

>From this entry, I have '*duty_cycle'* and '*period*' , now what value I 
need to write here for the above analogWrite code ?
*/sys/class/pwm/pwmchip4/pwm1*

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