mikroC
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Spi_Init_AdvancedmikroC - C Compiler for Microchip PIC microcontrollers
Prototype | void Spi_Init_Advanced(char master, | char data_sample, char | ||
| clock_idle, char transmit_edge); |
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Description | Configures and initializes SPI. Spi_Init_Advanced or SPI_Init needs to be called | |||
| before using other functions of SPI Library. |
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| Parameter mast_slav determines the work mode for SPI; can have the values: | |||
| MASTER_OSC_DIV4 | // Master clock=Fosc/4 |
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| MASTER_OSC_DIV16 | // Master clock=Fosc/16 |
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| MASTER_OSC_DIV64 | // Master clock=Fosc/64 |
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| 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 interval
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)
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MikroElektronika: Development tools - Books - Compilers | 267 | ||
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