commit/c0090716995447bd59954c8a7e24cd5c20598f7a/watch__spi_8h_source.html

 /*

  * MIT License

  *

  * Copyright (c) 2022 Joey Castillo

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy

  * of this software and associated documentation files (the "Software"), to deal

  * in the Software without restriction, including without limitation the rights

  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

  * copies of the Software, and to permit persons to whom the Software is

  * furnished to do so, subject to the following conditions:

  *

  * The above copyright notice and this permission notice shall be included in all

  * copies or substantial portions of the Software.

  *

  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

  * SOFTWARE.

  */


 #ifndef _WATCH_SPI_H_INCLUDED

 #define _WATCH_SPI_H_INCLUDED


 #include "watch.h"


 void watch_enable_spi(void);


 void watch_disable_spi(void);


 bool watch_spi_write(const uint8_t *buf, uint16_t length);


 bool watch_spi_read(uint8_t *buf, uint16_t length);


 bool watch_spi_transfer(const uint8_t *data_out, uint8_t *data_in, uint16_t length);


 #endif

watch_spi_read
bool watch_spi_read(uint8_t *buf, uint16_t length)
Reads a series of values from a device on the SPI bus.

watch_spi_transfer
bool watch_spi_transfer(const uint8_t *data_out, uint8_t *data_in, uint16_t length)
Reads a series of values from a device on the SPI bus.

watch_enable_spi
void watch_enable_spi(void)
Enables the SPI peripheral. Call this before attempting to interface with SPI devices.

watch_disable_spi
void watch_disable_spi(void)
Disables the SPI peripheral.

watch_spi_write
bool watch_spi_write(const uint8_t *buf, uint16_t length)
Writes a series of values to a device on the SPI bus.

watch.h