convert string to string

Hasan Mustafa

hello everyone,

im facing a problem, im sending a HEX values to the PC, put the PC program display it as string, BUT i want it as HEX, i cant change the PC part, because its displaying other information too, it will be easier for me if i change the TI code,

for example,

i want to send 0xEA on the screen i received it as ê,,, i want to see it as EA

i did like that

tempTXFrame= 0xEA;
ltoa(tempTXFrame,TCPTemp);

            TXFrame[0]        = 0x41;
            TXFrame[1]        = TCPTemp[0];
            TXFrame[2]        = TCPTemp[1];

////////////////////////

it suppose i receive 6561 but i receive on the screen 23 ?????? i think im using the wrong function, im newbie with strings

any advice will be great, thanks all

Hasan

over 15 years ago

0 John Lagerquist over 15 years ago

Intellectual 420 points

Here's one way (unoptimized) - this creates a null-terminated string and only works for single byte values (otherwise google sprintf)

char buf[3];

int value = 0xea;

buf[0] = value >> 4;

buf[1] = value & 0x0f;

buf[0] = buf[0] > 9 ? buf[0] - 0x0A + 'A' : buf[0] + '0';

buf[1] = buf[1] > 9 ? buf[1] - 0x0A + 'A' : buf[1] + '0';

buf[2] = 0;

0 Bhaskar Reddy over 15 years ago in reply to John Lagerquist

Intellectual 980 points

Here is another way

static char hex[] = "0123456789ABCDEF";

char buf[3];

int value = 0xea;

buf[0] = hex[value >> 4];
buf[1] = hex[value& 0x0F];

buf[2]=' ';

C2000™︎ microcontrollers

C2000 microcontrollers forum

convert string to string