48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
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/************************************************************************//**
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* \file ext_keyboard.h
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* \brief Function to use the extension keyboard
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* \author pascal (dot) sartoretti (at) hevs (dot) ch
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***************************************************************************/
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#ifndef __EXT_26PIN_H
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#define __EXT_26PIN_H
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#include <stdint.h>
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#include "stm32f7xx_hal.h"
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#define nCS_FREQ_GEN_Pin GPIO_PIN_6
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#define nCS_FREQ_GEN_GPIO_Port GPIOF
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typedef enum
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{
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SINUS,
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TRIANGLE,
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SQUARE
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}f_mode;
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/************************************************************************//**
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* \brief Inits the Sparkfun frequency generator connected to SPI
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* port on the 26 pin connector pins below:
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* SCK = pin 3
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* MOSI = pin 2
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* nCS = pin 4
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***************************************************************************/
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int32_t Ext_FreqGen_Init (void);
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/************************************************************************//**
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* \brief Sets a frequency on Sparfun generator output
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* \param frequency The frequency in hertz (below 20 Hz signal is bad)
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* \param mode The signal mode (SINUS,TRIANGLE,SQUARE)
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*
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* The signal is centered at about 1.61 volt +/- 0.53 volts
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***************************************************************************/
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void Ext_FreqGen_Set(uint32_t frequency,f_mode mode);
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/************************************************************************//**
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* \brief Inits the debug pin PF9
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***************************************************************************/
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int32_t Ext_Debug_Init(void);
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#endif /* __BOARD_LED_H */
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