39 lines
934 B
C++
39 lines
934 B
C++
// ArduinoCompat/HardwareSPI.h
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// STM32 implementattion of Arduino compatible SPI class
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#ifndef _HardwareSPI_h
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#define _HardwareSPI_h
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#include <stdint.h>
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typedef enum SPIFrequency {
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SPI_21_0MHZ = 0, /**< 21 MHz */
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SPI_10_5MHZ = 1, /**< 10.5 MHz */
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SPI_5_25MHZ = 2, /**< 5.25 MHz */
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SPI_2_625MHZ = 3, /**< 2.625 MHz */
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SPI_1_3125MHZ = 4, /**< 1.3125 MHz */
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SPI_656_25KHZ = 5, /**< 656.25 KHz */
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SPI_328_125KHZ = 6, /**< 328.125 KHz */
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} SPIFrequency;
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#define SPI_MODE0 0x00
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#define SPI_MODE1 0x04
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#define SPI_MODE2 0x08
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#define SPI_MODE3 0x0C
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class HardwareSPI
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{
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public:
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HardwareSPI(uint32_t spiPortNumber); // Only port SPI1 is currently supported
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void begin(SPIFrequency frequency, uint32_t bitOrder, uint32_t mode);
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void end(void);
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uint8_t transfer(uint8_t data);
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private:
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uint32_t _spiPortNumber; // Not used yet.
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};
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extern HardwareSPI SPI;
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#endif
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