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Problem with I2C RTC DS1307 Module

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Taking a quick look at the code, you'll need to change at least the following:   Remove this line, MSP430 can access data stored in ROM just fine without. 5: #include <avr/pgmspace.h>  

The specification sheet of the DS1307 says the supply voltage is min=4.5B typical=5V max=5.5V.   How do you make the connection to the LaunchPad pins which are 3.3V-based?   Two risks: data from

Looks like the RTCLib is using native AVR code, i.e. it needs some fixing to be portable beyond Arduino.   Are you using the Adafruit library? https://github.com/adafruit/RTClib

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