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im using PIC18F452 @ 20M and Siemens M55 to send and receive SMS and calls, and it works gr8 but.. every time when phone is ringing, or call is active, all messages (at-commands)that mcu gets from phone is garbage. Phone sends them as it should(checked with Hyper-Terminal and DockLight), but...
Schematics for ICD2
I use 16F877A but yes i'm sure it is programmed and verified succesfully. I have used 8 different BL's and crystal is working.
TTL signal is 0 when its voltage drops below 1V (i'm not sure about that voltage) but anyway.. in my case, signal is always 1 and MAX232 is trying...
Schematics for ICD2
I'm using MAX232 and 1uF caps(tryed also 0.1uF and 10uF). FIFO buffers are turned off and it's not usb rs232 port.
I also used 3 different PC's and OS and it still not working.
Schematics for ICD2
Hi all,
i build RS232 ICD2 based on blueroomelectronics design and.. i cant get it working. Everything should be OK but.. schematic and board are fine, voltage values are ok. i just dont get it.
MPLAB give error "ICD0002 Cannot connect" or something like that and when i...
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