xil_printf in format %08x is printing out the value: "8x". What's goign on here?

I'm reading out a 32 bit GPI from VHDL file, and I print it out using xil_printf with format type %08x. For some reason it is printing out 8x, when it normally should print something like 00000003 in hexadecimal format.

finishnEnd3 = (0xFFFFFFFF & XIOModule_DiscreteRead(&iom, 3) ); xil_printf("finishnend3 : %08x ,val: %d",finishnEnd3, finishnEnd3); 

And the output I get are: finishenend3 : 8x ,val: 101187738

1 Answer

xil_printf only supports a subset of what printf supports. Use sprintf to create a C string then pass it to xil_printf with the %s flag.

const int STR_MAX = 100; int hex = 0xDEADBEEF; char str[STR_MAX]; sprintf(str, "%08x", hex); xil_printf("%s",str);