customization of putchar function

I have made the new function putchar for redirect the output to LCD already. But by default, I also want to use this as output to serial port on the same program. I do not understand how to use both...
customization of putchar function

I have made the new function putchar for redirect the output to LCD already. But by default, I also want to use this as output to serial port on the same program. I do not understand how to use both...
Linking putchar from a custom library

Hi, I try to create a library (.lib) file and i have wrote my custom versions of putchar and _getkey functions in it. Debugging the library project as executable the linker links my putchar and _getkey...
Linking putchar from a custom library

Hi, I try to create a library (.lib) file and i have wrote my custom versions of putchar and _getkey functions in it. Debugging the library project as executable the linker links my putchar and _getkey...
Problem With Putchar

I am having a slight Problem with the putchar function . when i say putchar(0x0A) it put 0x0D & 0x0A both but i only need 0x0A i tried writing putchar myself but dose not seem to work what i did...