ansh 0 Posted March 5, 2015 Share Posted March 5, 2015 while m interfacing msp430 with cc3200 using i2c using energia i am not getting anything on serial monitor while the code is executing ...can anyone tell how to interface cc3200 with msp430 Quote Link to post Share on other sites
cubeberg 540 Posted March 5, 2015 Share Posted March 5, 2015 Have you considered using serial? I have an MSP430 connected to Serial1 on the CC3200 which leaves Serial to communicate with your PC if attached (I use it for debugging output). The one issue I ran into - which may be your problem with I2C since it uses the same pins - the LEDs seem to screw things up. I had to specifically set the green LED pin (RX 1) as an input to get things to work, even though I didn't have to do that for Serial - it was needed for Serial1. I'm only receiving serial from the MSP430, not sending it back - but you might need to expressly set that pin as an output as well. Also - do you have pull-ups on the I2C lines? Those are needed for I2C. Quote Link to post Share on other sites
ansh 0 Posted March 6, 2015 Author Share Posted March 6, 2015 i want to know the pin numbers ?? Quote Link to post Share on other sites
cubeberg 540 Posted March 6, 2015 Share Posted March 6, 2015 They put up great pin maps at energia.nu - http://energia.nu/pin-maps/guide_cc3200launchpad/(http://energia.nu/wordpress/wp-content/uploads/2014/09/cc3200lppinmap.jpg for the full res image) I believe you should be using 9 and 10 for SDA/SCL or TX/RX for Serial1. It looks like 39/40 are alternates - but I don't think that's the default configuration. Quote Link to post Share on other sites
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