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Experiments

8 ICSP

IICSP allows you to program controllers "in-circuit". This process is also known as code

downloading. This means quite simply that the chip in question is connected with a socket

consisting of four or five wires, viz. the ICSP bus. Several members of the PIC family can be

programmed or reprogrammed without having to remove them from the print or deactivating the

power supply. These IC's are converted to programming mode by applying the programming

voltage of 12 to 14V to the "/MCLR" pin. From this point onwards RB6 is used as a CLOCK input

while RB7 is modified into a DATA-input/output-connection.

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Velleman K8040 Specifiche Pagina 15