Power failur .

[sarath ak]

Hi ,

I am working with BeagleBone Black.

From today morning my BBB wont power on.

There is no led blink even power led also.

anybody can help me to resolve the problem. 

[Gerald Coley]

Sounds like you may have broken it. How are you powering the board? What was the last thing you were ding with the board?

Gerald

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Gerald

 

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[sarath ak]

i did connect rs232 to serial converter to this board . . . 

connect ground with p9.1 ,  rx pin to p9.24 and tx pin to p9.26   . . . I did configure UART-1 in my beaglebone . but it work perfectly.

after i connected rs232 the board could not power up. . .

 

 

 

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[evilwulfie]

what kind of converter did you connect?
do you have a part number of the converter?
the I/O is 3.3v anything above that and you fry the cpu

[sarath ak]

Oh . I connected r232 12v converter thats my fault. 

 

thank u for your help.

 

 

 

 

------ AK SARATH

[sarath ak]

I need some clarification about BeagleBone.

Currently working in Serial communication and configured UART-1 [ P9_24 =TXD ,  P9_26 = RXD  ] and UART-2 [ P9_21 =TXD ,  P9_22 = RXD ] in this pins.

I can transmit and receive data  from UART_1 to UART_2 and vice verse using simple wires ( see image 2).

Now i try to communicate with external device using CP2102 USB to TTL serial converter  3.3 volts ( image 1).

I have connected TXD (P9_24) pin of BeagleBone to RXD of converter and  RXD (P9_26) pin  of BeagleBone to TXD of converter. 

After this connection made , BeagleBone board's power off and stopped working .

may i know why this problem happens , please help me o find out the solution to overcome this problem. 

The voltage levels have been checked for 3.3 v and the connections were verified. Adaptor Ground --> BB Ground 
Adaptor TX --> BB RX of uart1
Adaptor RX --> BB TX of uart1

1)

2)

-----------Regards 

      SARATH_AK                  

       Embedded Software Engg .

 Electron India.

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