CCS C Compiler Manual PCB / PCM / PCH

generate a clock. If there is no data to send just do a spi_read_16(0) to get the
clock.
If this device is a slave then either call spi_read_16() to wait for the clock and data
or use_spi_data_is_in() to determine if data is ready.
Availability: This function is only available on devices with SPI hardware.
Requires:
Examples:
Example
Files:
Also See:
NThat the option SPI_MODE_16B be used in setup_spi() function, or that the
option XFER16 be used in #use SPI(
data_in = spi_read_16(out_data);
None
spi_read(), spi_write(), spi_write_16(), spi_data_is_in(), SPI Overview
spi_speed
Syntax:
Parameters:
Returns:
Function:
Availability:
Requires:
Examples:
Example Files:
Also See:
spi_speed(baud);
spi_speed(stream,baud);
spi_speed(stream,baud,clock);
stream – is the SPI stream to use as defined in the STREAM=name
option in #USE SPI.
band- the band rate to set the SPI module to
clock- the current clock rate to calculate the band rate with.
If not specified it uses the value specified in #use delay ().
Nothing.
Sets the SPI module's baud rate to the specified value.
This function is only available on devices with SPI hardware.
#USE SPI
spi_speed(250000);
spi_speed(SPI1_MODE0, 250000);
spi_speed(SPI1_MODE0, 125000, 8000000);
None
#USE SPI, spi_xfer(), spi_xfer_in(), spi_prewrite(), spi_init()
316