process in microcontroller

[patel_ec]

hello
can i have more than one programm execution simultaneously with 8051.

is there any way to load dos os in 8051 and after that make possible to execute .exe file with 8051.

 

[hr_rezaee]

hi
as i know, your answer in "NO"
because microcontrollers can execute one instruction per clock(s). so you can execute two program simultaneously. but you can write a program that switch between two programs.

you can not execute dos in 8051 because 8051 has not 80x86 instructions set.
regards

 

[newelltech]

Just to add to hr_rezaee's excellent reply -
Microcontollers use an RTOS (Real Time Operating System) to simulate running more that one task at a time. Usually the RTOS has a scheduler that shares CPU cycles between the tasks. It takes advanced design techniques to use an RTOS correctly.