MSP430FR2355: unsigned char not appearing within mssg ??

Steve Wenner

I have the following line of code:

                    strncat(strncat(strcpy(Send, "JA"), sysID, 4), (const char *)sensor, 1);

I am trying to concatenate an unsigned char (sensor) to the above message. Sensor looks correct coming into the message but once concatenated it changes to another value. I find that if I replace

(const char*) sensor with "0" the above works....I'm sure this has to do with strings vs char but I am not sure how to solve it?

over 5 years ago

0 David Schultz over 5 years ago

Guru 26345 points

Missing is the declaration for "sensor". Presumably something other than a pointer to a character or you wouldn't need the cast.

0 Steve Wenner over 5 years ago in reply to David Schultz

Genius 3260 points

    char sensor;

0 Keith Barkley over 5 years ago in reply to Steve Wenner

Guru 43965 points

You want &sensor, not a cast. a cast takes the value of sensor and pretends it is an address.

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MSP430FR2355: unsigned char not appearing within mssg ??