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interfacing dot matrix to PIC

 
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shaan



Joined: 25 Mar 2010
Posts: 5

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interfacing dot matrix to PIC
PostPosted: Sat Apr 03, 2010 3:55 am     Reply with quote
Hi!!!!
I want to interface Zigbee Jennic module JN5139 to PIC 16f877a using SPI.
so can u hlp me in interfacing.
any code example.
Humberto



Joined: 08 Sep 2003
Posts: 1215
Location: Buenos Aires, La Reina del Plata

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PostPosted: Sat Apr 03, 2010 8:56 am     Reply with quote
?????
Quote:

interfacing dot matrix to PIC

From: http://www.jennic.com/products/wireless_microcontrollers/jn5139
"The device integrates a 32-bit RISC processor, Shocked with a fully compliant 2.4GHz IEEE802.15.4 transceiver,
192kB of ROM, 96kB of RAM, and a rich mixture of analogue and digital peripherals".

The Zigbee Jennic JN5139 is a single chip that integrate a Transceiver + a 32 Bit MCU in the same module
for wireless sensor networks, in the other end of a link you will need another JN5139 module,
THE QUESTION IS: for what reason do you need to interface it with a PIC MCU?

Regards,

Humberto
shaan



Joined: 25 Mar 2010
Posts: 5

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PostPosted: Fri Apr 16, 2010 2:01 am     Reply with quote
hi!!!!!!!!!!!

Humberto

I'm using PIC controller just to display the data coming from sensors of Jennic JN5139 module to the LED screen of 5x28 dot matrix display.
Can you give me the details of interfacing and code example?

Regards

shaan Question
Humberto



Joined: 08 Sep 2003
Posts: 1215
Location: Buenos Aires, La Reina del Plata

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PostPosted: Fri Apr 16, 2010 5:45 am     Reply with quote
To interface Zigbee Jennic module JN5139 with a PIC using SPI you need an interactive action, I mean:
you can´t add extra hardware to "sniff what is going on" inside the JN5139. Even if it has SPI
capabilities, it do not handle the SPI pins unless it is stated in its firmware.
I suggest you to write code to handle the JN5139. There is a starting kit that provides a suite of tools
to facilitate the development of application code, it includes a C compiler, graphical and text debuggers,
assembler, linker and flash programmer.

Regards,

Humberto
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