Maxim Integrated / MaximInterface

Device interface library for multiple platforms including Mbed.

Dependents:   DeepCover Embedded Security in IoT MaximInterface MAXREFDES155#

Maxim Interface is a library framework focused on providing flexible and expressive hardware interfaces. Both communication interfaces such as I2C and 1-Wire and device interfaces such as DS18B20 are supported. Modern C++ concepts are used extensively while keeping compatibility with C++98/C++03 and requiring no external dependencies. The embedded-friendly design does not depend on exceptions or RTTI.

The full version of the project is hosted on GitLab: https://gitlab.com/iabenz/MaximInterface

MaximInterfaceDevices/DS9400.cpp@8:5ea891c7d1a1, 2019-09-16 (annotated)

Committer:
IanBenzMaxim
Date:
Mon Sep 16 11:13:37 2019 -0500
Revision:
8:5ea891c7d1a1
Parent:
7:9cd16581b578 
Updated to version 2.0.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
IanBenzMaxim 7:9cd16581b578 1 /*******************************************************************************
IanBenzMaxim 8:5ea891c7d1a1 2 * Copyright (C) Maxim Integrated Products, Inc., All Rights Reserved.
IanBenzMaxim 7:9cd16581b578 3 *
IanBenzMaxim 7:9cd16581b578 4 * Permission is hereby granted, free of charge, to any person obtaining a
IanBenzMaxim 7:9cd16581b578 5 * copy of this software and associated documentation files (the "Software"),
IanBenzMaxim 7:9cd16581b578 6 * to deal in the Software without restriction, including without limitation
IanBenzMaxim 7:9cd16581b578 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
IanBenzMaxim 7:9cd16581b578 8 * and/or sell copies of the Software, and to permit persons to whom the
IanBenzMaxim 7:9cd16581b578 9 * Software is furnished to do so, subject to the following conditions:
IanBenzMaxim 7:9cd16581b578 10 *
IanBenzMaxim 7:9cd16581b578 11 * The above copyright notice and this permission notice shall be included
IanBenzMaxim 7:9cd16581b578 12 * in all copies or substantial portions of the Software.
IanBenzMaxim 7:9cd16581b578 13 *
IanBenzMaxim 7:9cd16581b578 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
IanBenzMaxim 7:9cd16581b578 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
IanBenzMaxim 7:9cd16581b578 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IanBenzMaxim 7:9cd16581b578 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
IanBenzMaxim 7:9cd16581b578 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
IanBenzMaxim 7:9cd16581b578 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
IanBenzMaxim 7:9cd16581b578 20 * OTHER DEALINGS IN THE SOFTWARE.
IanBenzMaxim 7:9cd16581b578 21 *
IanBenzMaxim 7:9cd16581b578 22 * Except as contained in this notice, the name of Maxim Integrated
IanBenzMaxim 7:9cd16581b578 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
IanBenzMaxim 7:9cd16581b578 24 * Products, Inc. Branding Policy.
IanBenzMaxim 7:9cd16581b578 25 *
IanBenzMaxim 7:9cd16581b578 26 * The mere transfer of this software does not imply any licenses
IanBenzMaxim 7:9cd16581b578 27 * of trade secrets, proprietary technology, copyrights, patents,
IanBenzMaxim 7:9cd16581b578 28 * trademarks, maskwork rights, or any other form of intellectual
IanBenzMaxim 7:9cd16581b578 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
IanBenzMaxim 7:9cd16581b578 30 * ownership rights.
IanBenzMaxim 7:9cd16581b578 31 *******************************************************************************/
IanBenzMaxim 7:9cd16581b578 32
IanBenzMaxim 7:9cd16581b578 33 #include "DS9400.hpp"
IanBenzMaxim 7:9cd16581b578 34
IanBenzMaxim 8:5ea891c7d1a1 35 #define TRY MaximInterfaceCore_TRY
IanBenzMaxim 8:5ea891c7d1a1 36 #define TRY_VALUE MaximInterfaceCore_TRY_VALUE
IanBenzMaxim 8:5ea891c7d1a1 37
IanBenzMaxim 7:9cd16581b578 38 namespace MaximInterfaceDevices {
IanBenzMaxim 7:9cd16581b578 39
IanBenzMaxim 7:9cd16581b578 40 using namespace Core;
IanBenzMaxim 7:9cd16581b578 41
IanBenzMaxim 8:5ea891c7d1a1 42 Result<void> DS9400::waitAwake() {
IanBenzMaxim 7:9cd16581b578 43 uint_least8_t data;
IanBenzMaxim 7:9cd16581b578 44 do {
IanBenzMaxim 8:5ea891c7d1a1 45 TRY_VALUE(data, uart->readByte());
IanBenzMaxim 8:5ea891c7d1a1 46 } while (data != 0xA5);
IanBenzMaxim 8:5ea891c7d1a1 47 return none;
IanBenzMaxim 7:9cd16581b578 48 }
IanBenzMaxim 7:9cd16581b578 49
IanBenzMaxim 8:5ea891c7d1a1 50 Result<void> DS9400::start() { return uart->writeByte('S'); }
IanBenzMaxim 7:9cd16581b578 51
IanBenzMaxim 8:5ea891c7d1a1 52 Result<void> DS9400::start(uint_least8_t address) {
IanBenzMaxim 8:5ea891c7d1a1 53 TRY(start());
IanBenzMaxim 8:5ea891c7d1a1 54 TRY(writeByte(address));
IanBenzMaxim 8:5ea891c7d1a1 55 return none;
IanBenzMaxim 7:9cd16581b578 56 }
IanBenzMaxim 7:9cd16581b578 57
IanBenzMaxim 8:5ea891c7d1a1 58 Result<void> DS9400::stop() { return uart->writeByte('P'); }
IanBenzMaxim 7:9cd16581b578 59
IanBenzMaxim 8:5ea891c7d1a1 60 Result<void> DS9400::writeByte(uint_least8_t data) {
IanBenzMaxim 7:9cd16581b578 61 const uint_least8_t packet[] = {'Q', data};
IanBenzMaxim 8:5ea891c7d1a1 62 TRY(uart->clearReadBuffer());
IanBenzMaxim 8:5ea891c7d1a1 63 TRY(uart->writeBlock(packet));
IanBenzMaxim 8:5ea891c7d1a1 64 TRY_VALUE(data, uart->readByte());
IanBenzMaxim 8:5ea891c7d1a1 65 return (data == 0) ? makeResult(none) : I2CMaster::NackError;
IanBenzMaxim 7:9cd16581b578 66 }
IanBenzMaxim 7:9cd16581b578 67
IanBenzMaxim 8:5ea891c7d1a1 68 Result<uint_least8_t> DS9400::readByte(DoAck doAck) {
IanBenzMaxim 8:5ea891c7d1a1 69 TRY(uart->clearReadBuffer());
IanBenzMaxim 8:5ea891c7d1a1 70 TRY(uart->writeByte(doAck == Ack ? 'R' : 'N'));
IanBenzMaxim 8:5ea891c7d1a1 71 return uart->readByte();
IanBenzMaxim 7:9cd16581b578 72 }
IanBenzMaxim 7:9cd16581b578 73
IanBenzMaxim 8:5ea891c7d1a1 74 Result<void> DS9400::configure(uint_least8_t config) {
IanBenzMaxim 7:9cd16581b578 75 const uint_least8_t packet[] = {'C', config};
IanBenzMaxim 7:9cd16581b578 76 return uart->writeBlock(packet);
IanBenzMaxim 7:9cd16581b578 77 }
IanBenzMaxim 7:9cd16581b578 78
IanBenzMaxim 7:9cd16581b578 79 } // namespace MaximInterfaceDevices