hi,
in my project i have to use 2 uart in 8051 micrcontroller. i am using gsm and gps in my project.my problem is when i receiving gsm sms i have to send gps value to same number . the mobile number is not stored in software.we can receive sms form any mobile number and reply to that number.how to handle this problem? suggest me best thing
I GUESS (why not be clear in your post so guessing is not needed) that you need 2 UARTS one for the GSM and one for the GPS. hang all ideas about a 'soft' UART up, they are a pain in your largest muscle and, usually, give you timing problems. There are legio derivatives with two UARTs, use one of those.
Erik