SAM Serial Peripheral Interface Driver.
Copyright (c) 2012-2020 Microchip Technology Inc. and its subsidiaries.
#include "spi.h"Functions | |
| static enum status_code | _spi_set_config (struct spi_module *const module, const struct spi_config *const config) |
| enum status_code | spi_init (struct spi_module *const module, Sercom *const hw, const struct spi_config *const config) |
| Initializes the SERCOM SPI module. More... | |
| enum status_code | spi_read_buffer_wait (struct spi_module *const module, uint8_t *rx_data, uint16_t length, uint16_t dummy) |
Reads buffer of length SPI characters. More... | |
| void | spi_reset (struct spi_module *const module) |
| Resets the SPI module. More... | |
| enum status_code | spi_select_slave (struct spi_module *const module, struct spi_slave_inst *const slave, const bool select) |
| Selects slave device. More... | |
| enum status_code | spi_set_baudrate (struct spi_module *const module, uint32_t baudrate) |
| Set the baudrate of the SPI module. More... | |
| enum status_code | spi_transceive_buffer_wait (struct spi_module *const module, uint8_t *tx_data, uint8_t *rx_data, uint16_t length) |
Sends and receives a buffer of length SPI characters. More... | |
| enum status_code | spi_transceive_wait (struct spi_module *const module, uint16_t tx_data, uint16_t *rx_data) |
| Sends and reads a single SPI character. More... | |
| enum status_code | spi_write_buffer_wait (struct spi_module *const module, const uint8_t *tx_data, uint16_t length) |
Sends a buffer of length SPI characters. More... | |
|
static |
Writes an SPI SERCOM configuration to the hardware module.
This function will write out a given configuration to the hardware module. Can only be done when the module is disabled.
| [in] | module | Pointer to the software instance struct |
| [in] | config | Pointer to the configuration struct |
| STATUS_ERR_INVALID_ARG | If invalid argument(s) were provided |
| STATUS_OK | If the configuration was written |
References _sercom_get_default_pad(), _sercom_get_sercom_inst_index(), _sercom_get_sync_baud_val(), spi_slave_config::address, spi_slave_config::address_mask, spi_slave_config::address_mode, Assert, spi_master_config::baudrate, spi_config::character_size, spi_config::data_order, system_pinmux_config::direction, spi_slave_config::frame_format, system_pinmux_config::input_pull, spi_config::master, spi_config::mode, spi_config::mode_specific, system_pinmux_config::mux_position, spi_config::mux_setting, PINMUX_DEFAULT, spi_config::pinmux_pad0, spi_config::pinmux_pad1, spi_config::pinmux_pad2, spi_config::pinmux_pad3, PINMUX_UNUSED, spi_slave_config::preload_enable, spi_config::receiver_enable, spi_config::run_in_standby, spi_config::slave, SPI_MODE_MASTER, SPI_MODE_SLAVE, STATUS_ERR_INVALID_ARG, STATUS_OK, system_gclk_chan_get_hz(), system_is_debugger_present(), system_pinmux_get_config_defaults(), SYSTEM_PINMUX_PIN_DIR_INPUT, SYSTEM_PINMUX_PIN_PULL_NONE, system_pinmux_pin_set_config(), and spi_config::transfer_mode.
Referenced by spi_init().
1.8.5