Strategie_13h30
Fork of CRAC-Strat_2017_homologation_gros_rob by
mbed/SPI.h
- Committer:
- matthieuvignon
- Date:
- 2017-05-25
- Revision:
- 22:8dec8824a6f7
- Parent:
- 0:ad97421fb1fb
File content as of revision 22:8dec8824a6f7:
/* mbed Microcontroller Library - SPI * Copyright (c) 2010-2011 ARM Limited. All rights reserved. */ #ifndef MBED_SPI_H #define MBED_SPI_H #include "device.h" #if DEVICE_SPI #include "platform.h" #include "PinNames.h" #include "PeripheralNames.h" #include "Base.h" namespace mbed { /* Class: SPI * A SPI Master, used for communicating with SPI slave devices * * The default format is set to 8-bits, mode 0, and a clock frequency of 1MHz * * Most SPI devices will also require Chip Select and Reset signals. These * can be controlled using <DigitalOut> pins * * Example: * > // Send a byte to a SPI slave, and record the response * > * > #include "mbed.h" * > * > SPI device(p5, p6, p7); // mosi, miso, sclk * > * > int main() { * > int response = device.write(0xFF); * > } */ class SPI : public Base { public: /* Constructor: SPI * Create a SPI master connected to the specified pins * * Variables: * mosi - SPI Master Out, Slave In pin * miso - SPI Master In, Slave Out pin * sclk - SPI Clock pin * name - (optional) A string to identify the object * * Pin Options: * (5, 6, 7) or (11, 12, 13) * * mosi or miso can be specfied as NC if not used */ SPI(PinName mosi, PinName miso, PinName sclk, const char *name = NULL); /* Function: format * Configure the data transmission format * * Variables: * bits - Number of bits per SPI frame (4 - 16) * mode - Clock polarity and phase mode (0 - 3) * * > mode | POL PHA * > -----+-------- * > 0 | 0 0 * > 1 | 0 1 * > 2 | 1 0 * > 3 | 1 1 */ void format(int bits, int mode = 0); /* Function: frequency * Set the spi bus clock frequency * * Variables: * hz - SCLK frequency in hz (default = 1MHz) */ void frequency(int hz = 1000000); /* Function: write * Write to the SPI Slave and return the response * * Variables: * value - Data to be sent to the SPI slave * returns - Response from the SPI slave */ virtual int write(int value); #ifdef MBED_RPC virtual const struct rpc_method *get_rpc_methods(); static struct rpc_class *get_rpc_class(); #endif protected: SPIName _spi; void aquire(void); static SPI *_owner; int _bits; int _mode; int _hz; }; } // namespace mbed #endif #endif