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PCD
SPII_XFER_IN()
Syntax:
Parameters:
Returns:
Function:
Availability:
Requires:
Examples:
Example
Files:
Also See:
sprintf( )
Syntax:
value = spi_xfer_in();
value = spi_xfer_in(bits);
value = spi_xfer_in(stream,bits);
stream – is the SPI stream to use as defined in the STREAM=name option in
#USE SPI.
bits – is how many bits of data to be received.
The data read in from the SPI
Reads data from the SPI, without writing data into the transmit buffer first.
This function is only available on devices with SPI hardware.
#USE SPI, and the option SLAVE is used in #USE SPI to setup PIC as a SPI
slave device.
data_in = spi_xfer_in();
ex_spi_slave.c
#USE SPI, spi_xfer(), spi_prewrite(), spi_init(), spi_speed()
sprintf( string , cstring , values ...);
bytes=sprintf( string , cstring , values ...)
Parameters: string is an array of characters.
cstring is a constant string or an array of characters null terminated.
Values are a list of variables separated by commas. Note that format specifies
do not work in ram band strings.
Returns:
Function:
Bytes is the number of bytes written to string.
This function operates like printf() except that the output is placed into the specified
string. The output string will be terminated with a null. No checking is done to
ensure the string is large enough for the data. See printf() for details on formatting.
Availability: All devices.
Requires:
Examples:
Nothing
char mystring[20];
long mylong;
mylong=1234;
292
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