Generating a random number in pic16f877a

[thomasscms]

hi

for a project, i have to generate a random number between 0 and 9, and display it on seven segment display using pic16f877a. i tried using

rn = rand()%10;

but only 0x0008 is coming out..
can sm1 suggest a solution?

 

[throwaway18]

One way is to have a button that the user presses to make a random number appear (or change it). In the main loop of your software add 1 to memory location (and wrap 9+1 to 0) so you have a counter that changes thousands of times a second. When the user presses the button copy the current value to the display. The time between each press of the button will always be different so the number displayed will be random.