Shyam Joshi

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5 years, 7 months ago.

This declaration has no storage class or type specifier "include mbed.h"

I'm receiving this error: This declaration has no storage class or type specifier "include mbed.h"

Following is my code: include "mbed.h" Serial pc(USBTX, USBRX); Serial bluetooth(D2,D8); int main(){ int i; int j=10; char c[j]; bluetooth.printf("Ready to recieve data"); pc.printf("Ready to recieve data"); for(i=0,i<j,i++) { c=bluetooth.getc(); bluetooth.printf(" 0x%.2x",c[i]); pc.printf("0x%.2x",c[i]); } }

1 Answer

Graham S.
5 years, 7 months ago.

The preprocessor include of course needs the pound sign, #include "mbed.h"

You need to end your printf statements with a newline to flush the buffer and actually send the characters.

You should check if a serial char is available before trying to read it.

In your loop you need to take into account that you will not have a new character every time through the loop. So you need to count chars received.

Probably want to add a small wait to the loop to free up cpu to do other things.

You generally should never exit main().

This might be a starting point, to read chars and simply echo them back.

#include "mbed.h" 

Serial pc(USBTX, USBRX); 
Serial bluetooth(D2,D8);
 
int main(){ 
    int i = 0; 
    char c;
    int count = 0; 
    
    bluetooth.printf("\n\nReady to recieve data\n"); 
    pc.printf("\n\nReady to recieve data\n"); 
    
    while (true) {        
        while(bluetooth.readable()) {
            c=bluetooth.getc(); 
            bluetooth.printf("%c\n",c); 
            pc.printf("%c\n",c); 
            pc.printf("%d\n", ++count);            
        }        
        wait(0.01);
    }

}