IAP access with Phillips P89C668

I'm using a Philips P89C668 that provides In-system Application Programming (IAP) with have an entry address at 0xFFF0. Is there a clever way to access the IAP functions directly from C without the need...
IAP access with Phillips P89C668

I'm using a Philips P89C668 that provides In-system Application Programming (IAP) with have an entry address at 0xFFF0. Is there a clever way to access the IAP functions directly from C without the need...
Declaring RAM areas for P89C668 (xdata problems)

I believe I'm doing something incorrectly, probably relating to how I initialize and tell keil where RAM memory resides at. I'm using the latest version of uVision and C compiler. The P89C668 has 8k...
Declaring RAM areas for P89C668 (xdata problems)

I believe I'm doing something incorrectly, probably relating to how I initialize and tell keil where RAM memory resides at. I'm using the latest version of uVision and C compiler. The P89C668 has 8k...
interfacing gsm modules with microcontroller

pls, i need help. i am currently writing a project using interactive voice response system and i need to interface a gsm modem to a microcontroller using AT commands. anyone with useful info should pls...