CCS C Compiler Manual PCB / PCM / PCH

Built-in Functions
will be clocked out and the data received will be returned. If no data is ready,
spi_read() will wait for the data is a SLAVE or return the last DATA clocked in
from spi_write().
If this device is the MASTER then either do a spi_write(data) followed by a
spi_read() or do a spi_read(data). These both do the same thing and will
generate a clock. If there is no data to send just do a spi_read(0) to get the
clock.
Availability:
Requires:
Examples:
Example Files:
Also See:
If this device is a SLAVE then either call spi_read() to wait for the clock and
data or use_spi_data_is_in() to determine if data is ready.
This function is only available on devices with SPI hardware.
Nothing
data_in = spi_read(out_data);
ex_spi.c
spi_write(), , , spi_data_is_in(), SPI Overview
spi_read_16()
spi_read2_16()
spi_read3_16()
spi_read4_16()
Syntax:
value = spi_read_16([data]);
value = spi_read2_16([data]);
value = spi_read3_16([data]);
value = spi_read4_16([data]);
Parameters: data – optional parameter and if included is a 16 bit int
Returns:
Function:
A 16 bit int
Return a value read by the SPI. If a value is passed to the spi_read_16() the data
will be clocked out and the data received will be returned. If no data is ready,
spi_read_16() will wait for the data is a SLAVE or return the last DATA clocked in
from spi_write_16().
If this device is the MASTER then either do a spi_write_16(data) followed by a
spi_read_16() or do a spi_read_16(data). These both do the same thing and will
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