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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

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mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

TARGET_SDT32625B/TOOLCHAIN_IAR/spix.h@172:65be27845400, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 20:53:29 2019 +0000
Revision:
172:65be27845400
Parent:
171:3a7713b1edbc 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Anna Bridge 169:a7c7b631e539 1 /*******************************************************************************
Anna Bridge 169:a7c7b631e539 2 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
Anna Bridge 169:a7c7b631e539 3 *
Anna Bridge 169:a7c7b631e539 4 * Permission is hereby granted, free of charge, to any person obtaining a
Anna Bridge 169:a7c7b631e539 5 * copy of this software and associated documentation files (the "Software"),
Anna Bridge 169:a7c7b631e539 6 * to deal in the Software without restriction, including without limitation
Anna Bridge 169:a7c7b631e539 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
Anna Bridge 169:a7c7b631e539 8 * and/or sell copies of the Software, and to permit persons to whom the
Anna Bridge 169:a7c7b631e539 9 * Software is furnished to do so, subject to the following conditions:
Anna Bridge 169:a7c7b631e539 10 *
Anna Bridge 169:a7c7b631e539 11 * The above copyright notice and this permission notice shall be included
Anna Bridge 169:a7c7b631e539 12 * in all copies or substantial portions of the Software.
Anna Bridge 169:a7c7b631e539 13 *
Anna Bridge 169:a7c7b631e539 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
Anna Bridge 169:a7c7b631e539 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
Anna Bridge 169:a7c7b631e539 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
Anna Bridge 169:a7c7b631e539 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
Anna Bridge 169:a7c7b631e539 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
Anna Bridge 169:a7c7b631e539 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
Anna Bridge 169:a7c7b631e539 20 * OTHER DEALINGS IN THE SOFTWARE.
Anna Bridge 169:a7c7b631e539 21 *
Anna Bridge 169:a7c7b631e539 22 * Except as contained in this notice, the name of Maxim Integrated
Anna Bridge 169:a7c7b631e539 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
Anna Bridge 169:a7c7b631e539 24 * Products, Inc. Branding Policy.
Anna Bridge 169:a7c7b631e539 25 *
Anna Bridge 169:a7c7b631e539 26 * The mere transfer of this software does not imply any licenses
Anna Bridge 169:a7c7b631e539 27 * of trade secrets, proprietary technology, copyrights, patents,
Anna Bridge 169:a7c7b631e539 28 * trademarks, maskwork rights, or any other form of intellectual
Anna Bridge 169:a7c7b631e539 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
Anna Bridge 169:a7c7b631e539 30 * ownership rights.
Anna Bridge 169:a7c7b631e539 31 *
Anna Bridge 169:a7c7b631e539 32 * $Date: 2016-05-26 11:38:10 -0500 (Thu, 26 May 2016) $
Anna Bridge 169:a7c7b631e539 33 * $Revision: 23065 $
Anna Bridge 169:a7c7b631e539 34 *
Anna Bridge 169:a7c7b631e539 35 ******************************************************************************/
Anna Bridge 169:a7c7b631e539 36
Anna Bridge 169:a7c7b631e539 37 /**
Anna Bridge 169:a7c7b631e539 38 * @file spix.h
Anna Bridge 169:a7c7b631e539 39 * @brief This is the high level API for the serial peripheral interface execute in place module.
Anna Bridge 169:a7c7b631e539 40 * @warning If using this SPIX with IAR Embedded Workbench for Arm, it is required to define
Anna Bridge 169:a7c7b631e539 41 * <tt>IAR_SPIX_PRAGMA=1</tt>. This should be done under Project->Options->
Anna Bridge 169:a7c7b631e539 42 * C/C++ Compiler->Preprocessor in the Defined Symbols input box. See the IAR documentation
Anna Bridge 169:a7c7b631e539 43 * for additional information on how to set a preprocessor define in a project.
Anna Bridge 169:a7c7b631e539 44 */
Anna Bridge 169:a7c7b631e539 45
Anna Bridge 169:a7c7b631e539 46 #include "mxc_sys.h"
Anna Bridge 169:a7c7b631e539 47 #include "spix_regs.h"
Anna Bridge 169:a7c7b631e539 48
Anna Bridge 169:a7c7b631e539 49 #ifndef _SPIX_H_
Anna Bridge 169:a7c7b631e539 50 #define _SPIX_H_
Anna Bridge 169:a7c7b631e539 51
Anna Bridge 169:a7c7b631e539 52 #ifdef __cplusplus
Anna Bridge 169:a7c7b631e539 53 extern "C" {
Anna Bridge 169:a7c7b631e539 54 #endif
Anna Bridge 169:a7c7b631e539 55
Anna Bridge 169:a7c7b631e539 56 /***** Definitions *****/
Anna Bridge 169:a7c7b631e539 57
Anna Bridge 169:a7c7b631e539 58 /// @brief Options for number of I/O pins to use during for each fetch stage
Anna Bridge 169:a7c7b631e539 59 typedef enum {
Anna Bridge 169:a7c7b631e539 60 SPIX_SINGLE_IO = MXC_V_SPIX_FETCH_CTRL_CMD_WIDTH_SINGLE,
Anna Bridge 169:a7c7b631e539 61 SPIX_DUAL_IO = MXC_V_SPIX_FETCH_CTRL_CMD_WIDTH_DUAL_IO,
Anna Bridge 169:a7c7b631e539 62 SPIX_QUAD_IO = MXC_V_SPIX_FETCH_CTRL_CMD_WIDTH_QUAD_IO
Anna Bridge 169:a7c7b631e539 63 } spix_width_t;
Anna Bridge 169:a7c7b631e539 64
Anna Bridge 169:a7c7b631e539 65 /// @brief Options for number of address bytes to use during fetch
Anna Bridge 169:a7c7b631e539 66 typedef enum {
Anna Bridge 169:a7c7b631e539 67 SPIX_3BYTE_FETCH_ADDR = 0,
Anna Bridge 169:a7c7b631e539 68 SPIX_4BYTE_FETCH_ADDR = 1
Anna Bridge 169:a7c7b631e539 69 } spix_addr_size_t;
Anna Bridge 169:a7c7b631e539 70
Anna Bridge 169:a7c7b631e539 71 /// @brief SPIX fetch configuration.
Anna Bridge 169:a7c7b631e539 72 typedef struct {
Anna Bridge 169:a7c7b631e539 73 spix_width_t cmd_width; ///< Number of I/O lines used for command SPI transaction.
Anna Bridge 169:a7c7b631e539 74 spix_width_t addr_width; ///< Number of I/O lines used for address SPI transaction.
Anna Bridge 169:a7c7b631e539 75 spix_width_t data_width; ///< Number of I/O lines used for data SPI transaction.
Anna Bridge 169:a7c7b631e539 76 spix_addr_size_t addr_size; ///< Use 3 or 4 byte addresses for fetches.
Anna Bridge 169:a7c7b631e539 77 uint8_t cmd; ///< Command value to initiate fetch.
Anna Bridge 169:a7c7b631e539 78 uint8_t mode_clocks; ///< Number of SPI clocks required during mode phase of fetch.
Anna Bridge 169:a7c7b631e539 79 uint8_t no_cmd_mode; ///< Read command sent only once.
Anna Bridge 169:a7c7b631e539 80 uint16_t mode_data; ///< Data sent with mode clocks.
Anna Bridge 169:a7c7b631e539 81 } spix_fetch_t;
Anna Bridge 169:a7c7b631e539 82
Anna Bridge 169:a7c7b631e539 83 /***** Globals *****/
Anna Bridge 169:a7c7b631e539 84
Anna Bridge 169:a7c7b631e539 85 /***** Function Prototypes *****/
Anna Bridge 169:a7c7b631e539 86
Anna Bridge 169:a7c7b631e539 87 /**
Anna Bridge 169:a7c7b631e539 88 * @brief Configure SPI execute in place clocking.
Anna Bridge 169:a7c7b631e539 89 * @param sys_cfg Pointer to system level configuration structure.
Anna Bridge 169:a7c7b631e539 90 * @param mode SPI mode to use for the clocking.
Anna Bridge 169:a7c7b631e539 91 * @param baud Frequency in hertz to set the clock to. May not be able to achieve with
Anna Bridge 169:a7c7b631e539 92 * the given clock divider.
Anna Bridge 169:a7c7b631e539 93 * @param sample Number of SPIX clocks to delay the sampling of the SDIO lines. Will use
Anna Bridge 169:a7c7b631e539 94 * feedback mode if set to 0.
Anna Bridge 169:a7c7b631e539 95 * @returns #E_NO_ERROR if everything is successful
Anna Bridge 169:a7c7b631e539 96 */
Anna Bridge 169:a7c7b631e539 97 int SPIX_ConfigClock(const sys_cfg_spix_t *sys_cfg, uint32_t baud, uint8_t sample);
Anna Bridge 169:a7c7b631e539 98
Anna Bridge 169:a7c7b631e539 99 /**
Anna Bridge 169:a7c7b631e539 100 * @brief Configure SPI execute in place slave select.
Anna Bridge 169:a7c7b631e539 101 * @param ssel Index of which slave select line to use.
Anna Bridge 169:a7c7b631e539 102 * @param pol Polarity of slave select (0 for active low, 1 for active high).
Anna Bridge 169:a7c7b631e539 103 * @param act_delay SPIX clocks between slave select assert and active SPI clock.
Anna Bridge 169:a7c7b631e539 104 * @param inact_delay SPIX clocks between active SPI clock and slave select deassert.
Anna Bridge 169:a7c7b631e539 105 */
Anna Bridge 169:a7c7b631e539 106 void SPIX_ConfigSlave(uint8_t ssel, uint8_t pol, uint8_t act_delay, uint8_t inact_delay);
Anna Bridge 169:a7c7b631e539 107
Anna Bridge 169:a7c7b631e539 108 /**
Anna Bridge 169:a7c7b631e539 109 * @brief Configure how the SPIX fetches data.
Anna Bridge 169:a7c7b631e539 110 * @param fetch Pointer to configuration struct that describes how to fetch data.
Anna Bridge 169:a7c7b631e539 111 */
Anna Bridge 169:a7c7b631e539 112 void SPIX_ConfigFetch(const spix_fetch_t *fetch);
Anna Bridge 169:a7c7b631e539 113
Anna Bridge 169:a7c7b631e539 114 /**
Anna Bridge 169:a7c7b631e539 115 * @brief Shutdown SPIX module.
Anna Bridge 169:a7c7b631e539 116 * @param spix Pointer to SPIX regs.
Anna Bridge 169:a7c7b631e539 117 * @returns #E_NO_ERROR if everything is successful
Anna Bridge 169:a7c7b631e539 118 */
Anna Bridge 169:a7c7b631e539 119 int SPIX_Shutdown(mxc_spix_regs_t *spix);
Anna Bridge 169:a7c7b631e539 120
Anna Bridge 169:a7c7b631e539 121
Anna Bridge 169:a7c7b631e539 122 #ifdef __cplusplus
Anna Bridge 169:a7c7b631e539 123 }
Anna Bridge 169:a7c7b631e539 124 #endif
Anna Bridge 169:a7c7b631e539 125
Anna Bridge 169:a7c7b631e539 126 #endif /* _SPIX_H */