Hi! I try to choose a micro fitting for my application. I'm not sure how to estimate the power rating of the micro. Basicly, I must handle 1 parallel printerport (with connected printer),
1 chipcard drive, 1 serial link to a GSM modem, a 4x4 keyboard matrix, 4x20 alphanumeric display (with its own display driving controller) and 4 serial 38,4 kBit/s links. In a worst case all actions (keyboard hit, entering chipcard, display output, I/O...) can take place at a time. Further, there is the processing of the I/O data. Let's assume the task times are known. Now, how much MIPS do I actually need? Is there a kind of approximation formula or something? Thanks in advance!Best regards, Andreas