Search found 9 matches

by grabbo
Wed Apr 18, 2012 9:56 am
Forum: MSP Microcontrollers
Topic: MSP430 RFM12
Replies: 20
Views: 11049

Re: MSP430 RFM12

Somebody asked me to post a code. I include it here. It was a long time ago, I found this test code, it worked as i said earlier, with sequential method which is not mentioned in the documentation for the rfm12b but I had another chip which used it and it had almost the same registers therefore I wa...
by grabbo
Sun May 29, 2011 5:00 am
Forum: MSP Microcontrollers
Topic: MSP430 RFM12
Replies: 20
Views: 11049

Re: MSP430 RFM12

I wonder why there is need of library !! i have taken the reference code from PIC and then converted it into ATMEL's AVR you just need to change the pin defination all the other things are working fine without changing even any function. So i think if you are converting that for MSP430 just need to...
by grabbo
Sun Mar 20, 2011 2:14 am
Forum: MSP Microcontrollers
Topic: MSP430 RFM12
Replies: 20
Views: 11049

Re: MSP430 RFM12

I'll attach my code, hardware SPI to communicate with RFM12b. It's not working yet, it always gets stuck in transmit() function, waiting for SDO logic 1. My approach is a bit different than all others chose with this module, i follow TRC102 datasheet which is totally identical with rfm12 (some bits ...
by grabbo
Sat Mar 12, 2011 4:29 am
Forum: MSP Microcontrollers
Topic: MSP430 RFM12
Replies: 20
Views: 11049

Re: MSP430 RFM12

I'm working with RFM12b at the moment.
Problem is IRQ pin is always low and status read after command 0x0000 gives me value 0xA100 :/


I'm using bit banging SPI. Ill try hardware SPI if something changes.
by grabbo
Sun Feb 27, 2011 10:43 am
Forum: MSP Microcontrollers
Topic: MSP430 Accelerometer
Replies: 1
Views: 1703

Re: MSP430 Accelerometer

I might not help directly but point you right direction.. 1. ADXL330s are analog accelerometers, you need to sample output with A/D converter. There's lot of literature. I found most useful from freescale when i measured inclination. Read those, there are aritmetics. 2. You should be able to find a ...
by grabbo
Fri Jan 14, 2011 7:53 am
Forum: MSP Microcontrollers
Topic: MSP430 RFM12
Replies: 20
Views: 11049

Re: MSP430 RFM12

Hey,
keep me posted with any progress.
I'm sending data through UART so far, becuase my friend got an issue with another board which is at the side of a PC as a receiver.

I'll put my hands on RF soon and I might do something ;)
by grabbo
Thu Oct 21, 2010 6:39 am
Forum: MSP Microcontrollers
Topic: MSP430 RFM12
Replies: 20
Views: 11049

MSP430 RFM12

Has anybody tried them with MSP430? If the answer is positive, could you provide an example or library to work with. I bet it would help to start for many people.

There are tutorials and libraries ,almost all for avr.
by grabbo
Mon Oct 11, 2010 4:57 am
Forum: Wireless/RF
Topic: RF tranceiver / antenna/ band questions
Replies: 3
Views: 709

RF tranceiver / antenna/ band questions

I would like to ask few questions. I've never touched RF before. My project is design oximeter (MSP430) sending data to PC wirelessly. 1. Which transceiver you used was easy to set up and work with?I did some research and find nrf905 quite interessting. Is it good choice to begin with? I was for cc1...
by grabbo
Mon Sep 13, 2010 1:32 am
Forum: MSP Microcontrollers
Topic: Olimex MSP430-P1611 and voltage
Replies: 1
Views: 940

Olimex MSP430-P1611 and voltage

I'm lost .I bought adapter MWSI895GS which is regulated 500mA plug in AC/DC adaptor (1.5V - 12V). I set it to 4.5V with output current 800mA. I measure voltage on 3.3V pins and i measure 3.05V. If i change adapter to 6V,there's 4.1V which is over the limit for MSP430. I checked the datasheet of DS11...