Printing unsigned long long using System_printf()

Bharti Jain

I need to print a 64 bit value using System_printf() . I tried the following :

uint64_t test=0x1452C3529;

System_printf("test=%lu\n",test);
System_printf("test=%lx\n",test);

this gives the result:
test=1160525097
test=452c3529
which is not the desired result.

Could any one help me with the particular format specifier to be used here specifically with System_printf() so that complete 64 bit value gets printed.

Remember,neither I want to use printf() nor I want to store the value in any temporary variable.I am just looking for the particular format/conversion specifier for 64 bit with System_printf ()

over 13 years ago

0 Alberto Chessa over 13 years ago

Mastermind 6670 points

Hi,

The printf format "%ld" prints long. To print long long, try "%llu" or "%lld" (I don't know if System_printf() support it).

By the way, You can use the C99 standard format specificer macros PRId64 or PRId64, in "inttypes.h":

#include <inttypes.h> /* in C++, require define __STDC_FORMAT_MACROS */

System_printf("test= %" PRId64 "\n", test);

0 Bharti Jain over 13 years ago in reply to Alberto Chessa

Prodigy 240 points

Hi Alberto ,

I tried :

"System_printf("test= %" PRId64 "\n", test);

System_printf("test= %" PRIx64 "\n", test);"

but it gives:

"test= ld

test= lx"

So,even it's not working.

Device used:TCI6618

0 Alberto Chessa over 13 years ago in reply to Bharti Jain

Mastermind 6670 points

I'm sure the printf support this format but it seems the System_printf don't. Looking better at the System_printf source (xdctools 3.22.01.21) it seems it doesn't support long long at all.

0 Johannes over 13 years ago in reply to Alberto Chessa

Mastermind 6240 points

Hi,

I think Alberto is right, it doesn't seem to work even using the extended conversion specifiers (http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/sysbios/6_33_06_50/exports/bios_6_33_06_50/docs/cdoc/xdc/runtime/System.html#printf) that are used to print float, for example. You can use stdio printf instead.

Processors

Processors forum

Printing unsigned long long using System_printf()