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Bugfix LCD showed random characters in SCROLLMODE 2

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This commit is contained in:
Harald Barth 2023-03-14 20:50:24 +01:00
parent ce12f3b6c5
commit 27ba551986
3 changed files with 12 additions and 8 deletions
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15
Display.cpp
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@ -1,5 +1,6 @@
/*
* © 2021, Chris Harlow, Neil McKechnie. All rights reserved.
* © 2023, Harald Barth.
*
* This file is part of CommandStation-EX
*
@ -52,7 +53,7 @@ Display::Display(DisplayDevice *deviceDriver) {
_deviceDriver = deviceDriver;
// Get device dimensions in characters (e.g. 16x2).
numCharacterColumns = _deviceDriver->getNumCols();
numCharacterRows = _deviceDriver->getNumRows();;
numCharacterRows = _deviceDriver->getNumRows();
for (uint8_t row = 0; row < MAX_CHARACTER_ROWS; row++)
rowBuffer[row][0] = '\0';
topRow = ROW_INITIAL; // loop2 will fill from row 0
@ -173,16 +174,18 @@ bool Display::findNextNonBlankRow() {
rowNext = 0;
else
rowNext = rowNext + 1;
if (rowNext >= MAX_CHARACTER_ROWS) rowNext = ROW_INITIAL;
#if SCROLLMODE == 1
// Finished if we've looped back to start
if (rowNext == ROW_INITIAL) {
if (rowNext >= MAX_CHARACTER_ROWS) {
// Finished if we've looped back to start
rowNext = ROW_INITIAL;
noMoreRowsToDisplay = true;
return false;
}
#else
// Finished if we're back to the first one shown
if (rowNext >= MAX_CHARACTER_ROWS)
rowNext = 0;
if (rowNext == rowFirst) {
// Finished if we're back to the first one shown
noMoreRowsToDisplay = true;
return false;
}
@ -193,4 +196,4 @@ bool Display::findNextNonBlankRow() {
}
}
return false;
}
}

2
GITHUB_SHA.h
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@ -1 +1 @@
#define GITHUB_SHA "devel-202303101548Z"
#define GITHUB_SHA "devel-202303141949Z"

3
version.h
View File

@ -4,7 +4,8 @@
#include "StringFormatter.h"
#define VERSION "4.2.26"
#define VERSION "4.2.27"
// 4.2.27 - Bugfix LCD showed random characters in SCROLLMODE 2
// 4.2.26 - EX-IOExpander device driver enhancements
// - Enhance I2C error checking
// - Introduce delays to _loop to allow room for other I2C device comms