Iar Embedded Workbench For 8051 -

uart_init(9600); // baud rate

led_counter++; if(led_counter >= 500) P1 ^= 0x01; // toggle LED on P1.0 led_counter = 0; iar embedded workbench for 8051

// UART receive interrupt #pragma vector = 4 // UART interrupt (address 0x0023) __interrupt void uart_isr(void) if(RI) char c = SBUF; RI = 0; uart_putchar(c); // echo back // process received char // baud rate led_counter++

while(1) // idle, all work in ISR __asm("NOP"); = 500) P1 ^= 0x01

icc8051.exe blinky_8051.c --cpu=8051 --memory_model=small -o blinky.r51 xlink.exe blinky.r51 -o blinky.hex -F intel-extended This guide provides a complete foundation for developing professional firmware using . For device-specific details (SFR maps, bootloaders, sleep modes), always refer to the silicon vendor's datasheet and IAR's device-specific support files.