Conversion between NSString and uint8_t [] array

i've an NSString like this:

NSString *myStr=@"7JXAX";

that is equal in ASCII decimal value to {7,74,88,65,88}.

So, what i want to do is to convert this NSString to an uint8_t array value like:

uint8_t someInt[myStr length]={7,74,88,6开发者_C百科5,88}; 

So the question is, in which way can i convert a string to a unit8_t array?

Thanks in advance.

Will [myStr UTF8String] do the job for you?

i.e:

uint8_t *someInt = (uint8_t *)[myStr UTF8String];