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annotate Discovery/Inc/tMenuXtra.h @ 328:4fe5400567e7 I2C_Improvment

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Set I2C speed to 88kHz, use digital filter only and reworked idle clock recovery The errata describes a possible problem in operation between 88kHz and 100kHz => Set speed as recommended as work around. Based on reference implementation only one filter should be use. Choice was digital because only drawback is lag of wakeup functionality which is not used I2C communication may be randomly interrupted e.g. by a RTE reset or firmware update => reworked recovery function to get I2C devices in idle state again (Clk and SDA HIGH)
author ideenmodellierer
date Wed, 17 Jul 2019 22:42:15 +0200
parents 5f11787b4f42
children bc2fcd002fc4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 ///////////////////////////////////////////////////////////////////////////////
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2 /// -*- coding: UTF-8 -*-
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3 ///
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4 /// \file Discovery/Inc/tMenuXtra.h
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5 /// \brief Menu Xtra - Specials in Divemode like Reset Stopwatch
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6 /// \author heinrichs weikamp gmbh
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7 /// \date 02-Mar-2015
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8 ///
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9 /// $Id$
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10 ///////////////////////////////////////////////////////////////////////////////
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11 /// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh
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12 ///
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13 /// This program is free software: you can redistribute it and/or modify
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14 /// it under the terms of the GNU General Public License as published by
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15 /// the Free Software Foundation, either version 3 of the License, or
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16 /// (at your option) any later version.
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17 ///
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18 /// This program is distributed in the hope that it will be useful,
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19 /// but WITHOUT ANY WARRANTY; without even the implied warranty of
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20 /// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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21 /// GNU General Public License for more details.
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22 ///
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23 /// You should have received a copy of the GNU General Public License
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24 /// along with this program. If not, see <http://www.gnu.org/licenses/>.
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25 //////////////////////////////////////////////////////////////////////////////
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26
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27 /* Define to prevent recursive inclusion -------------------------------------*/
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28 #ifndef TMENU_XTRA_H
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29 #define TMENU_XTRA_H
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30
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31 #ifdef __cplusplus
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32 extern "C" {
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33 #endif
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34
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35 /* Includes ------------------------------------------------------------------*/
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36 #include <stdint.h>
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37
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38 /** @addtogroup Template
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39 * @{
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40 */
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41
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42 /* Exported variables --------------------------------------------------------*/
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43
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44
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45 /* Exported functions --------------------------------------------------------*/
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46
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47 uint32_t tMXtra_refresh(uint8_t line, char *text, uint16_t *tab, char *subtext);
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48
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49 #ifdef __cplusplus
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50 }
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51 #endif
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52
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53 #endif /* TMENU_XTRA_H */
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54
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55 /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/