Mercurial > public > ostc4
view BootLoader/Src/tInfoBootloader.c @ 328:4fe5400567e7 I2C_Improvment
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 |
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date | Wed, 17 Jul 2019 22:42:15 +0200 |
parents | 7801c5d8a562 |
children |
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/////////////////////////////////////////////////////////////////////////////// /// -*- coding: UTF-8 -*- /// /// \file BootLoader/Src/tInfoBootloader.c /// \brief Write something on the screen in between steps /// \author heinrichs weikamp gmbh /// \date 08-May-2015 /// /// $Id$ /////////////////////////////////////////////////////////////////////////////// /// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh /// /// This program is free software: you can redistribute it and/or modify /// it under the terms of the GNU General Public License as published by /// the Free Software Foundation, either version 3 of the License, or /// (at your option) any later version. /// /// This program is distributed in the hope that it will be useful, /// but WITHOUT ANY WARRANTY; without even the implied warranty of /// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the /// GNU General Public License for more details. /// /// You should have received a copy of the GNU General Public License /// along with this program. If not, see <http://www.gnu.org/licenses/>. ////////////////////////////////////////////////////////////////////////////// /* Includes ------------------------------------------------------------------*/ #include "tInfoBootloader.h" #include "base_bootloader.h" #include "gfx_colors.h" #include "gfx_engine.h" #include "gfx_fonts.h" #include "ostc.h" #include <string.h> /* Exported variables --------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ GFX_DrawCfgScreen tIBscreen; GFX_DrawCfgWindow tIBwindow; uint8_t line = 1; char textButtonLeft[30] = { 0 }; char textButtonMid[31] = { 0 }; char textButtonRight[31] = { 0 }; /* Private types -------------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /* Exported functions --------------------------------------------------------*/ void tInfoBootloader_init(void) { tIBscreen.FBStartAdress = 0; tIBscreen.ImageHeight = 480; tIBscreen.ImageWidth = 800; tIBscreen.LayerIndex = 1; tIBwindow.Image = &tIBscreen; tIBwindow.WindowNumberOfTextLines = 6; tIBwindow.WindowLineSpacing = 65; tIBwindow.WindowTab = 400; tIBwindow.WindowX0 = 20; tIBwindow.WindowX1 = 779; tIBwindow.WindowY0 = 0; tIBwindow.WindowY1 = 799; line = 1; } void tInfo_button_text(const char *text_left, const char *text_mid, const char *text_right) { if(text_left) strncpy(textButtonLeft,text_left,30); if(text_mid) { textButtonMid[0] = '\001'; strncpy(&textButtonMid[1],text_mid,30); } if(text_right) { textButtonRight[0] = '\002'; strncpy(&textButtonRight[1],text_right,30); } } void tInfo_newpage(const char *text) { uint32_t backup = tIBscreen.FBStartAdress; tIBscreen.FBStartAdress = getFrame(18); line = 1; if(text) GFX_write_string(&FontT48, &tIBwindow, text,line); line++; if(*textButtonLeft) write_content_simple(&tIBscreen, 0, 800, 480-24, &FontT24,textButtonLeft,CLUT_ButtonSurfaceScreen); if(*textButtonMid) write_content_simple(&tIBscreen, 0, 800, 480-24, &FontT24,textButtonMid,CLUT_ButtonSurfaceScreen); if(*textButtonRight) write_content_simple(&tIBscreen, 0, 800, 480-24, &FontT24,textButtonRight,CLUT_ButtonSurfaceScreen); GFX_SetFrameTop(tIBscreen.FBStartAdress); GFX_change_LTDC(); if(backup != 0) releaseFrame(18,backup); } void tInfo_write(const char *text) { if((line > 6) || (tIBscreen.FBStartAdress == 0)) tInfo_newpage(text); else { if(text) GFX_write_string(&FontT48, &tIBwindow, text,line); line++; } } /* Private functions ---------------------------------------------------------*/