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mikroC
- C Compiler for Microchip PIC microcontrollers
mikroC
making it simple...
Prototype
void Spi_Init_Advanced(char master, char data_sample, char
clock_idle, char transmit_edge);
Description Configures and initializes SPI. Spi_Init_Advanced or SPI_Init needs to be called
before using other functions of SPI Library.
Parameter
mast_slav determines the work mode for SPI; can have the values:
MASTER_OSC_DIV4
// Master clock=Fosc/4
MASTER_OSC_DIV16
// Master clock=Fosc/16
MASTER_OSC_DIV64
// Master clock=Fosc/64
MASTER_TMR2
// Master clock source TMR2
SLAVE_SS_ENABLE
// Master Slave select enabled
SLAVE_SS_DIS
// Master Slave select disabled
The data_sample determines when data is sampled; can have the values:
DATA_SAMPLE_MIDDLE
// Input data sampled in middle of interval
DATA_SAMPLE_END
// Input data sampled at the end of interva
l
Parameter clock_idle determines idle state for clock; can have the following values:
CLK_IDLE_HIGH
// Clock idle HIGH
CLK_IDLE_LOW
// Clock idle LOW
Parameter transmit_edge can have the following values:
LOW_2_HIGH
// Data transmit on low to high edge
HIGH_2_LOW
// Data transmit on high to low edge
Requires You need PIC MCU with hardware integrated SPI.
Example This will set SPI to master mode, clock = Fosc/4, data sampled at the middle of interval,
clock idle state low and data transmitted at low to high edge:
Spi_Init_Advanced(MASTER_OSC_DIV4, DATA_SAMPLE_MIDDLE,
CLK_IDLE_LOW, LOW_2_HIGH)
Spi_Init_Advanced