I would like to set a port pin for example P1.7 to zero "0" on "Power On" condition. I would like to do it in init.a51 or startup.a51. Please let me know how to do it? I am using keil UV2.37. Compiler 7.05 regards Ganesh
"I would like to do it in init.a51 or startup.a51. Please let me know how to do it?" There is absolutely nothing special nor magic about startup.a51 - it's just an assembler source file like any other assembler source file. Thus, the way to control a port pin in startup.a51 is no different to the way to do it in any other assembler source file.