Hi, I'm new in ARM Archterure, I'm using the LPC2129.
To set the IO 7 I use IOSET |= 0x00000080; and to reset him I use IOCLEAR |= 0x00000080; Rigth?
But I don't need only set and reset, I'm using the IO's 7 8 9 us a binarry counter, If my IO state is only a register I use 'IOVALUE += 0x00000080' to increment and 'IOVALUE -= 0x00000080' to decrement.
Though the IOPIN register is mentioned as READ ONLY, it is rumored, that one can write to it, but it seems to be very inefficient. It is interesting to compare the execution time for: