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Editorial Team
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Asked: 2026-06-04T00:41:50+00:00

char *pStrBuffer; unsigned char data; unsigned int Address; /* pStrBuffer reading from a file

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   char *pStrBuffer;

   unsigned char data;
   unsigned int Address;

   /* pStrBuffer reading from a file data in file of the form 
     WriteByte(0xDE04,0x20)
     WriteByte(0xFE08,0x50) ....

    */
   /* in a loop */
   sscanf(pStrBuffer,"%x%x",&Address,&data);

Compiler is gnu gcc 4.5 in Windows XP
However the Value read for Address is 0xDE00 instead of 0xDE04 ? why is that so although value of data is read correctly.
I also tried to use %lx and %hx respectively but of no use

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1 Answer

  1. Editorial Team

    To read a single unsigned byte, use the %hhx modifier. %hx is for an unsigned short, %x is for an unsigned int, %lx is for an unsigned long, and %llx is for an `unsigned long long.

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