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
Diff: MaximInterfaceDevices/DS9400.cpp
- Revision:
- 7:9cd16581b578
- Child:
- 8:5ea891c7d1a1
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MaximInterfaceDevices/DS9400.cpp Mon Jul 22 11:44:07 2019 -0500 @@ -0,0 +1,91 @@ +/******************************************************************************* +* Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved. +* +* 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 MAXIM INTEGRATED 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. +* +* Except as contained in this notice, the name of Maxim Integrated +* Products, Inc. shall not be used except as stated in the Maxim Integrated +* Products, Inc. Branding Policy. +* +* The mere transfer of this software does not imply any licenses +* of trade secrets, proprietary technology, copyrights, patents, +* trademarks, maskwork rights, or any other form of intellectual +* property whatsoever. Maxim Integrated Products, Inc. retains all +* ownership rights. +*******************************************************************************/ + +#include "DS9400.hpp" + +namespace MaximInterfaceDevices { + +using namespace Core; + +error_code DS9400::waitAwake() { + error_code result; + uint_least8_t data; + do { + result = uart->readByte(data); + } while (!result && data != 0xA5); + return result; +} + +error_code DS9400::start() { return uart->writeByte('S'); } + +error_code DS9400::start(uint_least8_t address) { + error_code result = start(); + if (!result) { + result = writeByte(address); + } + return result; +} + +error_code DS9400::stop() { return uart->writeByte('P'); } + +error_code DS9400::writeByte(uint_least8_t data) { + const uint_least8_t packet[] = {'Q', data}; + error_code result = uart->clearReadBuffer(); + if (!result) { + result = uart->writeBlock(packet); + if (!result) { + result = uart->readByte(data); + if (!result && data != 0) { + result = make_error_code(I2CMaster::NackError); + } + } + } + return result; +} + +error_code DS9400::readByte(AckStatus status, uint_least8_t & data) { + error_code result = uart->clearReadBuffer(); + if (!result) { + result = uart->writeByte(status == Ack ? 'R' : 'N'); + if (!result) { + result = uart->readByte(data); + } + } + return result; +} + +error_code DS9400::configure(uint_least8_t config) { + const uint_least8_t packet[] = {'C', config}; + return uart->writeBlock(packet); +} + +} // namespace MaximInterfaceDevices