User manual

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436

mikoC PRO for PIC32

MikroElektronika

Parameters

Returns Nothing.

Requires MCU must have the SPI module.

Example

// Set SPI1 to the Master Mode, data length is 16-bit, clock = Fcy (no clock

scaling), data sampled in the middle of interval, clock IDLE state high and

data transmitted at low to high clock edge:

SPI1_Init_Advanced(_SPI_MASTER, _SPI_16_BIT, 1, _SPI_SS_DISABLE, _SPI_DATA_

SAMPLE_MIDDLE, _SPI_CLK_IDLE_HIGH, _SPI_ACTIVE_2_IDLE);

Notes SPI library routines require you to specify the module you want to use. To select the desired SPI

module, simply change the letter x in the routine prototype for a number from 1 to 3.

Number of SPI modules per MCU differs from chip to chip. Please, read the appropriate datasheet

before utilizing this library.

Clock Polarity

Description Predened library const

IDLE state is Lo, ACTIVE state is Hi _SPI_CLK_IDLE_LOW

IDLE state is Hi, ACTIVE state is Lo _SPI_CLK_IDLE_HIGH

Clock Edge

Description Predened library const

Data is valid on ACTIVE-to-IDLE transition _SPI_ACTIVE_2_IDLE

Data is valid on IDLE-to-ACTIVE transition _SPI_IDLE_2_ACTIVE

The parameter clock_idle determines the behaviour of the SPI clock (CLK) line in IDLE phase.

The parameter edge determines on which clock edge data is considered to be valid.