Need a simulater for atmel

Hi, I am a student and using c51 for prog. Atmel 89c52.I need a simulater software by using which i can test the outputs of the MCU ports.Since i am a student i can not invest large amount of money....
Need a simulater for atmel

Hi, I am a student and using c51 for prog. Atmel 89c52.I need a simulater software by using which i can test the outputs of the MCU ports.Since i am a student i can not invest large amount of money....
UART rx not working on STR9 simulater

I have the trial version of uvision, using the simulator for code examples from ST's str91x library. In the uart example the receive portion does not work. The data read from the DR is always what was...
UART rx not working on STR9 simulater

I have the trial version of uvision, using the simulator for code examples from ST's str91x library. In the uart example the receive portion does not work. The data read from the DR is always what was...
amplify voltage

hi i m using 89c51 , the output voltage of port1 is approx 5 volt, but i need 12 voltage as my requirement, i used simple NPN transistor, but the output is approx same with base voltage, actually...