Insufficient ram on msp430g2553

[psiddaveer 0]

Hi guys,

I'm trying to program my msp430g2553 using energia. My program is about 360 lines in arduino.. When I try to compile the code in energia, it shows errors that the ram is insufficient and about 834B more needed.. I can't reduce the no of variables and the only header I've used in liquidcrystal.h.. So is this a problem with program or I need to change the controller?

[abecedarian 330]

@@psiddaveer Hard to say without seeing the code. If you have variables that don't change, maybe declare them as "CONST" so they get placed in flash. Try to avoid any floating point math.

[asgard20032 9]

If he is using liquidcrystal, he is surely using a lot of string. String can use up memory pretty fast : n+1 bytes (where n is the number of character and 1 is for null character)

 

No one would do string processing on a mcu, so I guess he won't modify them. Just declaring all string to constant would resolve all of his issue.

[Rei Vilo 692]

Go for the MSP430F5529 LaunchPad!

[psiddaveer 0]

Thank you guys thank you for replying.. I was using an array of strings which were used as variables, now when I declared them as constant the ram is free now.. But I need to think of some other way to tick mark the particular index number of the particular array.. And also I need to transmit these strings serially.. So any suggestions for tick marking other than using 1 more array of type int ??

[abecedarian 330]

Can save a little bit of memory if you use uint_8 (unsigned 8-bit integer) instead of INT, if the value is never going to be < 0 or > 255.

 

@@psiddaveer Might be easier to give advise if you post some code.