[hlp] UART using AVR CodeVision

[gameelgamal]

avr uart interrupt driven codevision

Hi.........
I have a small question in UART using Code Vision......

when I set the RX interrupt check box, A reciever buffer box appears.
could any one tell me what is the reciver buffer number means??


and what is the difference between these commands
puts()
putsf()
printf()

 

[baonguyenpro]

uart of avr

You can see in book: "C Programming for Microcontroller"

 

[radosek]

avr codevision rx interrupt

Hi,
"receiver buffer" means lenght of Rx buffer (in Bytes).

 

[svicent]

printf format specifiers for code vision

The UART receiver can function in two modes:
1) Polled
2) Interrupt driven circular buffer. In this mode you can specify the size of the circular buffer using the Receiver Buffer spinedit box.

void puts(char *str)
outputs, using putchar, the null terminated character string str, located in SRAM, followed by a new line character.

void putsf(char flash *str)
outputs, using putchar, the null terminated character string str, located in FLASH, followed by a new line character.

void printf(char flash *fmtstr [ , arg1, arg2, ...])
outputs formatted text, using putchar, according to the format specifiers in the fmtstr string.