Hi, I am using the Keil uVision 2 software to develop a firmware driver. I have one technical related to the sbit definitions. Lets say i have couple of sbit definitions as follows: sbit JTAG_TDO = 0xB0+0; sbit ALT_JTAG_TDO = 0x80+0; In the course of program execution, based on some condition I want JTAG_TDO point to the ALT_JTAG_TDO pin so that whatever i write to JTAG_TDO gets written to ALT_JTAG_TDO at the port address 0x80+0 instead of the original 0xB0+0. I tried doing &JTAG_TDO = &ALT_JTAG_TDO and that raised a compiled error. Please let me know how to dynamically change the port pin addressing?
Ok, I achieved what i wanted by passing the pins as parameters to the same function based on an IF condition. Example: Pulse_TCK(bit sbJTAG_TCK); //Definition I am calling the above function as follows: if (old_board) { Pulse_TCK(JTAG_TDO); } else { Pulse_TCK(ALT_JTAG_TDO); } Thanks for all your inputs.
after umpteen posts complaining about the time it takes and whatnot, you choose what was suggested in the very first answer. Erik