serial interface between 89c2051 & 89c52

I tried to start a communication between 89C2051 and 89C52 via serial port, but I could not. My assembly routins are working properly, but when I wrote the C code ...!!! Any suggestion or comment?...
serial interface between 89c2051 & 89c52

I tried to start a communication between 89C2051 and 89C52 via serial port, but I could not. My assembly routins are working properly, but when I wrote the C code ...!!! Any suggestion or comment?...
PWM generation with 89c2051

Hello, I am using 89c2051 ic for RGB dimming light . As there is no PWM pin on IC I wnat to know how can I genrate my PWM for dimming effect of LEDs.how canI use two times for generation of three pulses...
PWM generation with 89c2051

Hello, I am using 89c2051 ic for RGB dimming light . As there is no PWM pin on IC I wnat to know how can I genrate my PWM for dimming effect of LEDs.how canI use two times for generation of three pulses...
problems with 89c2051 programming in keil

i m doing a traffic signal project using 89c2051..now when i run my (assembly lang) program it gives two errors in keil... program is as follows>>>(i have marked the lines where i got error) ...