Remote-processing CAMBASIC Manual de usuario descargar pdf (Pagina 93)

Commands - 60

INP

I/O Function

SYNTAX: n = INP(I/O addre ss)

OUT I/O a ddress, data

PURPOSE: INP returns a byte from an I/O address.

OUT writes a byte to an I/O address.

REMARK S: I/O address is in the range of 0 to 65,536 (&FFFF).

data is in the range of 0 to 255 (&FF).

INP and OUT are used to read and write to hardware devices, such as digital I/O and counters.

INP is the complementar y function to the O UT statement.

WARNING: Some I/O address are used internally and should not be written to with the OUT

statement. Generally, these are from &80 to &CF . See your har dware manual for

these addresses.

RELATED: BIT

EXAMPLE: 100 A = INP(255)

120 OUT &40,12

ERROR: < Data negative> – for I/O address and data

< Illegal argument> – if I/O address > 65,535

< Data > 255> – if data > 255

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Remote-processing CAMBASIC Manual de usuario Pagina 93