Word to byte (or INT to CHAR)

Who can I convert a word (int or 16 bits) to 2 bytes (char or 8 bits)

I tried follolowing but it didn't work:

TX_Buffer[length] = (char)(crc<<8) ;
TX_Buffer[length+1] = (char)(crc && 0x00ff);

crc is word and TX_Buffer is byte

Don't you mean crc>>8? crc<<8 will move everything left (more significant) 8 bits, and thus take it out of the char range.

Also, you mean &, not &&. & is a bitwise and, && is a logical and.

Yes of course, my fault, just a beginner in C, thank you very much

Code:

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unsigned char bytes[sizeof(int)];
int n = 123;
*(int *)bytes = n;

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after the above, the character array bytes will contain the binary representation of the integer.