E
en2
- Jan 1, 1970
- 0
OK. does someone knows how to hook up atmega32 to microchip RF49XA ?
Best regards !
Best regards !
microchip RF49XA
Hook it up to the SPI bus on the chip
Hook it up to the SPI bus on the chip
Am using UART to hook my board to PC and SPI would be OK for RF connection.
Can you give more details on which pins should i use on RF and do i need
something else ?
btw. Thank you for your reply !
It would seem that SPI is new to you.
Please check the manual:
http://ww1.microchip.com/downloads/en/DeviceDoc/70590C.pdf
Figure 1-2
The figure says "PIC MCU", however ant micro with an SPI interface will
be the same.
Now getting the software to work is altogether a different matter.
Good Luck
hamilton
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Thx for reply. No SPI is not new for me but i have newer used it on
atmel. I found some schematics sample for PIc but none for atmel so i
was guessing that there is something that i need to add or remove to get
functional SPI conn.
------------------------------
Well, i would need some help on this.
I look at datasheet but there is no info which lines to use on the RF
side. The chip will work on 8mhz int osc and rf baud rate will be 9600.
Can you help me to define which lines can i use on MRF49 ?
--------------I guess I do not understand what you are asking.
Figure 1-2 show the direction of the pins as used in standard SPI
interface.
When you say, "RF side" isn't that the MRF49XA in the figure ?
Please restate your answer in the form of a question.
hamilton
--------------
Upps , sorry , i was looking wrong example.
OK. now there is just one thing left.
I was planning to connect RT/X lines from atmega to max3232 and from
this to PC. Should this be any problem, or better do i have to watch out
for something ?
-------------------FYI, Google found this:
http://hackaday.com/2010/12/09/designing-an-rf-transceiver/
As you can see by the date, this has been done many times since then.
Good Luck
hamilton