What are this characters in the console???

Hi,

I've been working in a project in the ezdsp c5535 with CCS v5.5 without a problem.

Out of the blue in the console appears a string of characters that i've no idea where they come from.

This is what my console shows (It changes every time i ran the program):

tí¶¡ög
­Â0”ÓéËüH`)h‰-±°ù³‘b¬‘@G²àQ`¸£–äÍj]¨H |�a¹)á�ˆä0¨%î‘€BaEh„òRÍÁH› ©ú¤ XTx£K¯'¶<ͯ�¥œãhÈ©±jبüO©„ÍÒU¤h¹å©Š6e¨yK·%Æ©6,Cñ¡’:íÑ%”1 ÖX
ñ0XŠÝêz9ähS,ŽãZ¤þiS÷ºƒ¨¨1-ü¹À€

They appear after the serial inicialization, but the serial communication with matlab still works fine.

Any ideas on how to solve this o what it may cause it?

Thanks in advance!