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Hello
I'm making a career end project, and i've got to make a succesfull communication between the philips p89c668 microcontroller (8kb xram, 64 kb rom) and an anybus compactcom module to get fieldbus communication between a master and the microcontroller.
With the anybus compactcom module was shipped a generic driver.
My intention is to fit the driver in the host program in order to achieve the communication, but i've got some problems to do this:
1.- the fieldbuses can manage 64 bit data like double longs, double floats... can the uvision manage them? wich typedefs can i use?
2.- if anybody had done a similar implementation, can i have a watch over this?
Thank a lot for your attention, and excuse for my poor english. I can be weird, but I think that it is readable and can be understood.
With the exception of add and subtract, the code to operate on larger numbers than is natively available is often simpler if you work with sign+magnitude, instead of working with two-complement numbers.
I think that i will use sign+magnitude. It doesn't matter a lot, because as i posted before, I don't need to make arithmetic operation. So i can use also one-complement or two-complement.
Thanks a lot for your attention.