#include <SPI.bas> ' source in /Program Files/Coridium/BASIClib
SUB SPIBI (CSpin, INpin, CLKpin, OUTpin, LSBfirst, BIcnt, BYREF OUTlist as STRING, BYREF INlist as STRING)
SPIBI supports the loosely defined serial protocol used by a variety of manufacturers. The desired device is selected by asserting CS_pin LOW. If there is no CS_pin , the value should be set to -1.
SPIBI will shift out1, out2, out3 bytes out on
out_pin while reading 3 or more bytes into the InputList
from in_pin. For each bit the clk_pin will be pulsed.
Data is shifted in/out MSB first. The LSBfirst can be used to change the bit
Data is shifted in/out at 220 Kbits/sec