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How can I optimize the xdata access with C51

Hi there!

I need to optimize the accessing the xdata memory (the speed) with C51.

I am sending some files via modem and the transmission could be a bit faster. At present, I am reaching a transmission speed around 2kbyte/sec, which is kinda slow.

Right now, my buffers are large arrays in xdata memory and before a byte reaches the UART, it went through a couple of buffers (for the prtotocol layers). I cannot prevent that. But maybe one or the other way can speed up my access time to xdata.

I am not sure, I have heard somewhere that C51 will be faster if pointers instead of arrays are used. I didn't find anything about that in the search (maybe due to my keywords). Does anybody know more about that topic?

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