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Sonsivri > Electronics > Hardware and Tools (Moderator: bbarney) > PIC MCU Hanging Problem
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engr.humair
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« on: June 14, 2008, 09:39:43 09:39 »
Friends,

I am using PIC MCU with Siemens C35 for data transmission/reception.

If cellphone uneventually switches off, PIC MCU hangs & stops executing its instructions.

Can anyone helps me to resolve the issue.

Regards,
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pickit2
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There is no evidence that I muted SoNsIvRi
« Reply #1 on: June 14, 2008, 10:18:57 10:18 »
This should be posted under the mind reading topic.
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mbandala
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« Reply #2 on: June 15, 2008, 01:32:39 01:32 »
Quote from: engr.humair on June 14, 2008, 09:39:43 09:39
Friends,

I am using PIC MCU with Siemens C35 for data transmission/reception.

If cellphone uneventually switches off, PIC MCU hangs & stops executing its instructions.

Can anyone helps me to resolve the issue.

Regards,


You are hardly explaining what your problem is. You should give more technical details about what you are doing and what you want to achieve. Otherwise, no one is going to be able to help you out.
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zokij
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Nice time :)
« Reply #3 on: June 15, 2008, 04:43:33 04:43 »
 Roll Eyes mind reading ..................................................

yes put pullup resistor 47k on net PIC MCU -> RX of C35....

 Roll Eyes well ... am I read your mind Smiley
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pelctronics
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« Reply #4 on: June 29, 2008, 09:02:58 09:02 »
Problem is on siemens supply.Put him on  own Charger.Also you need 3,3v zener to tx pin from pic.
And  for last ,you may think to monitor siemens from pic and if no response you fire the ON Pin,
and send at+ckpd > Comand Smiley
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edi14_10
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« Reply #5 on: June 30, 2008, 04:38:31 04:38 »
Or maybe you can use the watchdog timer to reset the PIC Microcontroller. just set the WDT prescaler and activate the WDT by writing the fuse bit.
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SKUPAD
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« Reply #6 on: June 30, 2008, 12:25:41 12:25 »
If you really need help then describe your project in detail with source code and how you come to know that processor gets hanged.

It is rare that  pic  processor gets hanged. It is the poor programming and lack of proper care of watchdog register which leads processor  running with endless loop.


We are not mind readers.....
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Parmin
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Very Wise (and grouchy) Old Man
« Reply #7 on: July 02, 2008, 12:33:53 00:33 »
after 2 weeks without any followup.. why bother..
it doesnt work because the programmer is too lazy to program properly..
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