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* import from old firekernel repository

This commit is contained in:
Kaspar Schleiser 2010-09-22 15:10:42 +02:00
commit 91ae1eb6fd
284 changed files with 24839 additions and 0 deletions
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# ******************************************************************************
# Copyright 2009, Freie Universitaet Berlin (FUB). All rights reserved.
#
# These sources were developed at the Freie Universitaet Berlin, Computer
# Systems and Telematics group (http://cst.mi.fu-berlin.de).
# ------------------------------------------------------------------------------
# This file is part of FeuerWare.
#
# 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.
#
# FeuerWare 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/ .
# ------------------------------------------------------------------------------
# For further information and questions please use the web site
# http://scatterweb.mi.fu-berlin.de
# and the mailinglist (subscription via web site)
# scatterweb@lists.spline.inf.fu-berlin.de
# ******************************************************************************
# $Id$
SubDir TOP ;
#
# Target directory: bin directory located in BUILD_ROOT
#
TARGET_DIR ?= [ FPath $(BUILD_ROOT) bin $(BOARD) $(PROJECT) ] ;
LOCATE_TARGET = $(TARGET_DIR) ;
ALL_LOCATE_TARGET = $(TARGET_DIR) ;
echo "Building project '$(PROJECT)' for '$(BOARD)' board." ;
#
# Buil utility targets
#
Help ? ; # display usage from manual
Help help ;
Help usage ;
Help targets ;
Cleanall cleanall ; # clean all binaries
#
# Main target
#
Main $(TARGET) ;
Depends all : $(TARGET:S=.hex) ; # always build a hex-file
LOCATE on $(TARGET) = bin ;
LOCATE on $(TARGET:S=.hex) = bin ;
#
# Utility targets
#
Doc doc ; # build the documentation
Flash flash : $(TARGET:S=.hex) ;
Reset reset ;
Debug debug : $(TARGET) ;
ListModules listmodules ;
ShowFlags showflags : $(TARGET) ;
SubInclude TOP projects $(PROJECT) ;
SubInclude TOP sys ;
SubInclude TOP core ;
SubInclude TOP drivers ;
SubInclude TOP board ;

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# ******************************************************************************
# Copyright 2009, Freie Universitaet Berlin (FUB). All rights reserved.
#
# These sources were developed at the Freie Universitaet Berlin, Computer
# Systems and Telematics group (http://cst.mi.fu-berlin.de).
# ------------------------------------------------------------------------------
# This file is part of FeuerWare.
#
# 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.
#
# FeuerWare 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/ .
# ------------------------------------------------------------------------------
# For further information and questions please use the web site
# http://scatterweb.mi.fu-berlin.de
# and the mailinglist (subscription via web site)
# scatterweb@lists.spline.inf.fu-berlin.de
# ******************************************************************************
# $Id$
#
# Include build system functionality
#
include $(TOP)$(SLASH)Jamrules.common ;
#
# Setup FeuerWare build system configuration (default values for common options)
#
PROJECT = $(PROJECT:E=hello-world) ;
BOARD = $(BOARD:E=msba2) ;
SUFFIX ?= "" ; # must be at least "" !!!
TARGET = "$(BOARD)-$(PROJECT)$(SUFFIX)$(SUFEXE)" ; # main target binary
OPENOCD_IF ?= olimex-jtag-tiny-a ;
if $(NT) || $(OS) = CYGWIN {
PORT = $(PORT:E=1) ;
} else {
PORT = $(PORT:E=/dev/ttyUSB0) ;
}
CCFLAGS += -DBOARD=BOARD_$(BOARD:U) ;
#
# core source directories
HDRS += $(TOP) ;
HDRS += [ FPath $(TOP) core include ] ;
HDRS += [ FPath $(TOP) hal include ] ;
HDRS += [ FPath $(TOP) sys include ] [ FPath $(TOP) sys config ] [ FPath $(TOP) sys drivers include ] [ FPath $(TOP) sys drivers cc110x ] [ FPath $(TOP) sys drivers nanopan5375 ] ;
HDRS += [ FPath $(TOP) sys net ] ;
HDRS += [ FPath $(TOP) sys lib ] [ FPath $(TOP) sys lib fat include ] ;
HDRS += [ FPath $(TOP) sys lib gps ] [ FPath $(TOP) sys lib gps drivers ] [ FPath $(TOP) sys lib gps geo ] ;
HDRS += [ FPath $(TOP) sys net phy ] [ FPath $(TOP) sys net mm ] ;
# Include board files
include [ FPath $(TOP) board $(BOARD) Jamrules.$(BOARD) ] ;
# Include cpu files
include [ FPath $(TOP) cpu $(CPU) Jamrules.$(CPU) ] ;
#
# standard target source directories
HDRS += [ FPath $(TOP) board $(BOARD) include ] ;
HDRS += [ FPath $(TOP) cpu $(CPU) include ] ;
HDRS += [ FPath $(TOP) projects $(PROJECT) ] ;
# drivers
HDRS += [ FPath $(TOP) drivers include ] ;
HDRS += [ FPath $(TOP) drivers cc110x ] ;

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# ******************************************************************************
# Copyright 2009, Freie Universitaet Berlin (FUB). All rights reserved.
#
# These sources were developed at the Freie Universitaet Berlin, Computer
# Systems and Telematics group (http://cst.mi.fu-berlin.de).
# ------------------------------------------------------------------------------
# This file is part of FeuerWare.
#
# 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.
#
# FeuerWare 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/ .
# ------------------------------------------------------------------------------
# For further information and questions please use the web site
# http://scatterweb.mi.fu-berlin.de
# and the mailinglist (subscription via web site)
# scatterweb@lists.spline.inf.fu-berlin.de
# ******************************************************************************
# $Id$
#
# OS specifics
#
if $(NT) {
POSIXSHELL = sh ;
NULLDEV = NUL ;
CAT = type ;
NOARSCAN = true ;
# redefine build rules for gcc on NT
SUFOBJ = .o ;
SUFLIB = .a ;
actions As
{
$(AS) $(ASFLAGS) $(ASHDRS) -o $(<) $(>)
}
actions Cc
{
$(CC) -c -o $(<) $(CCFLAGS) -D$(MODULE_DEFINES) $(CCDEFS) $(CCHDRS) $(>)
}
rule FDefines { return -D$(<) ; }
rule FIncludes { return -I$(<) ; }
} else {
NULLDEV = /dev/null ;
CAT = cat ;
RM = rm -rf ;
# use english language output for gcc
actions Cc
{
LANG=C $(CC) -c -o $(<) $(CCFLAGS) -D$(MODULE_DEFINES) $(CCDEFS) $(CCHDRS) $(>)
}
switch $(OS) {
case CYGWIN :
# archive scanning does not work on cygwin, so leave object files
NOARSCAN = true ;
}
}
#
# Plausbility checks and defaults
#
SUFEXE = .elf ;
#
# Rules and Actions
#
#
# Concatenates path-segments into a OS specific path string
# Usage: PATH = [ FPath path-segments ] ;
rule FPath
{
return $(<:J=$(SLASH)) ;
}
#
# Generate object archive
actions updated together piecemeal Archive
{
$(AR) $(ARFLAGS) $(<) $(>)
}
#
# Link target
rule Link
{
# add map file
Clean clean : $(<:S=.map) ;
# generation of hex file
Hexfile $(<:S=.hex) : $(<) ;
}
actions Link bind NEEDLIBS
{
echo "Old firmware size:"
$(TOOLCHAIN)size $(<) 2> $(NULLDEV) || echo " No old binary for size comparison..."
$(LINK) $(LINKFLAGS) -o $(<) $(UNDEFS) $(>) -Wl,--start-group $(NEEDLIBS) $(LINKLIBS) -lm -Wl,--end-group -Wl,-Map=$(<:S=.map) || $(RM) -f $(<) $(<:S=.map) $(<:S=.hex)
echo "New firmware size:"
$(TOOLCHAIN)size $(<)
}
#
# Clean binaries
actions piecemeal together existing Clean
{
# remove all jam targets
$(RM) $(>)
}
#
# Clean binaries regardless of project and board
rule Cleanall { }
actions Cleanall
{
echo "> Cleaning binaries"
$(RM) bin$(SLASH)*
make -C $(TOP)$(SLASH)doc clean
}
#
# Display usage text from manual
rule Help { }
actions Help
{
$(CAT) $(TOP)$(SLASH)doc$(SLASH)src$(SLASH)manual$(SLASH)examples$(SLASH)jam-usage.txt
}
#
# Compile documentation
rule Doc { }
actions Doc
{
make -C $(TOP)$(SLASH)doc all
}
#
# Generate hex-file from binary
rule Hexfile
{
MakeLocate $(<) : $(LOCATE_TARGET) ;
Depends $(<) : $(>) ;
SEARCH on $(>) = $(LOCATE_TARGET) ;
Clean clean : $(<) ;
}
actions Hexfile
{
$(OBJCOPY) -O ihex $(>) $(<)
}
#
# Program binary to target device
rule Flash
{
Depends $(<) : $(>) ;
}
actions Flash
{
$(FLASHER) $(FLASHFLAGS) $(>)
}
# Reset connected sensor node
actions Reset
{
$(RESET) > /dev/null 2>&1
}
#
# Run debug server
rule Debug
{
Depends $(<) : $(>) ;
}
actions Debug
{
$(GDB) $(GDBFLAGS) $(>)
}
#
# Rules for convenient module building & dependency tracking
rule Module
{
local _m = $(<:S=$(SUFLIB)) ;
# echo Module Name: $(<) Files: $(>) Dependencies: $(3) ;
DEFINED_MODULES += $(_m) ;
ModuleFromObjects $(<) : $(>:S=$(SUFOBJ)) ;
ObjectsNoDep $(>) ;
ModuleDepends $(_m) : $(3) ;
if $(_m) in $(USE_MODULES) {
UseModule $(_m) ;
}
}
# Add a pre-built library as module
# Syntax: BinModule <Module Name = $(<)> ;
rule BinModule
{
local _m = $(<:S=$(SUFLIB)) ;
DEFINED_MODULES += $(_m) ;
BINARY_MODULES += $(_m) ;
ModuleDepends $(_m) : $(3) ;
if $(_m) in $(USE_MODULES) {
UseModule $(_m) ;
}
}
rule ModuleDepends
{
local _m = $(<:S=$(SUFLIB)) ;
local _d = $(>:S=$(SUFLIB)) ;
# for DEP in $(_d) {
Depends $(_m) : $(_d) ;
DEPENDS.$(_m) += $(_d) ;
# }
}
rule UseModule
{
local _m = $(<:S=$(SUFLIB)) ;
if $(_m) in $(BINARY_MODULES) {
local _l _s ;
_l = $(<:S=$(SUFLIB)) ; # name of the library file
_s = [ FGristFiles $(_l) ] ; # source
MakeLocate $(_l) : $(LOCATE_TARGET) ; # locate to bin directory
File $(TARGET_DIR)/$(_l) : $(_s) ;
}
# echo UseModule $(<) ;
if ! $(_m) in $(DEFINED_MODULES) {
# echo Module not defined yet. ;
USE_MODULES += $(_m) ;
} else {
LinkLibraries $(TARGET) : $(<) ;
local _mdefine = MODULE_$(_m:S=:U) ;
if ! $(_mdefine) in $(MODULE_DEFINES) {
MODULE_DEFINES += $(_mdefine) ;
}
# echo Dependencies of $(_m): $(DEPENDS.$(_m)) ;
for DEP in $(DEPENDS.$(_m)) {
UseModule $(DEP) ;
}
}
}
# (slightly modified version of LibraryFromObjects)
rule ModuleFromObjects
{
local _i _l _s ;
# Add grist to file names
_s = [ FGristFiles $(>) ] ;
_l = $(<:S=$(SUFLIB)) ;
# Set LOCATE for the library and its contents. The bound
# value shows up as $(NEEDLIBS) on the Link actions.
# For compatibility, we only do this if the library doesn't
# already have a path.
if ! $(_l:D)
{
MakeLocate $(_l) $(_l)($(_s:BS)) : $(LOCATE_TARGET) ;
}
if $(NOARSCAN)
{
# If we can't scan the library to timestamp its contents,
# we have to just make the library depend directly on the
# on-disk object files.
Depends $(_l) : $(_s) ;
}
else
{
# If we can scan the library, we make the library depend
# on its members and each member depend on the on-disk
# object file.
Depends $(_l) : $(_l)($(_s:BS)) ;
for _i in $(_s)
{
Depends $(_l)($(_i:BS)) : $(_i) ;
}
}
Clean clean : $(_l) ;
if $(CRELIB) { CreLib $(_l) : $(_s[1]) ; }
Archive $(_l) : $(_s) ;
if $(RANLIB) { Ranlib $(_l) ; }
# If we can't scan the library, we have to leave the .o's around.
if ! ( $(NOARSCAN) || $(NOARUPDATE) ) { RmTemps $(_l) : $(_s) ; }
}
#
# Like Objects, but doesn't set dependencies on obj pѕeudotarget.
rule ObjectsNoDep
{
local _i ;
for _i in [ FGristFiles $(<) ]
{
Object $(_i:S=$(SUFOBJ)) : $(_i) ;
}
}
actions ListModules {
echo $(MODULE_DEFINES) | tr ' ' '\n' | sort
}
actions ShowFlags {
echo "CCFLAGS: "
echo $(CCFLAGS) $(CCDEFS) -D$(MODULE_DEFINES) | tr ' ' '\n ' | sort
echo "" | $(CC) -E -dD -
}

674
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END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
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/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

9
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@ -0,0 +1,9 @@
License
=======
* All sources and binaries that have been developed at Freie Universität Berlin are
licensed under the GNU General Public License version 3 as published by the
Free Software Foundation.
* Some external sources, especially files developed by SICS are published under
a separate license.
All code files contain licensing information.

3
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SubDir TOP board ;
SubInclude TOP board $(BOARD) ;

10
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SubDir TOP board eZ430-Chronos ;
HDRS += $(TOP)/board/$(CPU)/include ;
Module board : debug_uart.c board_init.c ;
UseModule board ;
SubInclude TOP board $(BOARD) drivers ;
SubInclude TOP cpu $(CPU) ;

12
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@ -0,0 +1,12 @@
# ******************************************************************************
# Copyright 2010, Freie Universitaet Berlin (FUB). All rights reserved.
# ******************************************************************************
# $Id$
BOARD = eZ430-Chronos ;
CPU = msp430 ;
MCU = cc430x6137 ;
FLASHER ?= mspdebug ;
FLASHFLAGS ?= rf2500 ;

2
board/eZ430-Chronos/board_init.c Normal file
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void board_init() {
}

21
board/eZ430-Chronos/debug_uart.c Normal file
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#include <stdio.h>
#include "board.h"
#define UART1_TX TXBUF1
#define UART1_WAIT_TXDONE() while( (UTCTL1 & TXEPT) == 0 ) { _NOP(); }
int putchar(int c)
{
// UART1_TX = c;
// UART1_WAIT_TXDONE();
//
// if (c == 10) {
// UART1_TX = 13;
// UART1_WAIT_TXDONE();
// }
return c;
}

5
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SubDir TOP board eZ430-Chronos drivers ;
UseModule board_common ;
Module board_common : display.c display1.c ;

519
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// *************************************************************************************************
//
// Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
//
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the
// distribution.
//
// Neither the name of Texas Instruments Incorporated nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// *************************************************************************************************
// Display functions.
// *************************************************************************************************
// *************************************************************************************************
// Include section
// system
#include <string.h>
// driver
#include "cc430x613x.h"
#include "display.h"
// *************************************************************************************************
// Prototypes section
void write_lcd_mem(uint8_t * lcdmem, uint8_t bits, uint8_t bitmask, uint8_t state);
void clear_line(uint8_t line);
void display_symbol(uint8_t symbol, uint8_t mode);
void display_char(uint8_t segment, uint8_t chr, uint8_t mode);
void display_chars(uint8_t segments, uint8_t * str, uint8_t mode);
// *************************************************************************************************
// Defines section
// *************************************************************************************************
// Global Variable section
// Display flags
volatile s_display_flags display;
// Global return string for itoa function
uint8_t itoa_str[8];
// *************************************************************************************************
// @fn lcd_init
// @brief Erase LCD memory. Init LCD peripheral.
// @param none
// @return none
// *************************************************************************************************
void lcd_init(void)
{
// Clear entire display memory
LCDBMEMCTL |= LCDCLRBM + LCDCLRM;
// LCD_FREQ = ACLK/16/8 = 256Hz
// Frame frequency = 256Hz/4 = 64Hz, LCD mux 4, LCD on
LCDBCTL0 = (LCDDIV0 + LCDDIV1 + LCDDIV2 + LCDDIV3) | (LCDPRE0 + LCDPRE1) | LCD4MUX | LCDON;
// LCB_BLK_FREQ = ACLK/8/4096 = 1Hz
LCDBBLKCTL = LCDBLKPRE0 | LCDBLKPRE1 | LCDBLKDIV0 | LCDBLKDIV1 | LCDBLKDIV2 | LCDBLKMOD0;
// I/O to COM outputs
P5SEL |= (BIT5 | BIT6 | BIT7);
P5DIR |= (BIT5 | BIT6 | BIT7);
// Activate LCD output
LCDBPCTL0 = 0xFFFF; // Select LCD segments S0-S15
LCDBPCTL1 = 0x00FF; // Select LCD segments S16-S22
#ifdef USE_LCD_CHARGE_PUMP
// Charge pump voltage generated internally, internal bias (V2-V4) generation
LCDBVCTL = LCDCPEN | VLCD_2_72;
#endif
}
// *************************************************************************************************
// @fn clear_display_all
// @brief Erase LINE1 and LINE2 segments. Clear also function-specific content.
// @param none
// @return none
// *************************************************************************************************
void clear_display_all(void)
{
// Clear generic content
clear_line(LINE1);
clear_line(LINE2);
}
// *************************************************************************************************
// @fn clear_display
// @brief Erase LINE1 and LINE2 segments. Keep icons.
// @param none
// @return none
// *************************************************************************************************
void clear_display(void)
{
clear_line(LINE1);
clear_line(LINE2);
}
// *************************************************************************************************
// @fn clear_line
// @brief Erase segments of a given line.
// @param uint8_t line LINE1, LINE2
// @return none
// *************************************************************************************************
void clear_line(uint8_t line)
{
display_chars(switch_seg(line, LCD_SEG_L1_3_0, LCD_SEG_L2_5_0), NULL, SEG_OFF);
if (line == LINE1)
{
display_symbol(LCD_SEG_L1_DP1, SEG_OFF);
display_symbol(LCD_SEG_L1_DP0, SEG_OFF);
display_symbol(LCD_SEG_L1_COL, SEG_OFF);
}
else // line == LINE2
{
display_symbol(LCD_SEG_L2_DP, SEG_OFF);
display_symbol(LCD_SEG_L2_COL1, SEG_OFF);
display_symbol(LCD_SEG_L2_COL0, SEG_OFF);
}
}
// *************************************************************************************************
// @fn write_segment
// @brief Write to one or multiple LCD segments
// @param lcdmem Pointer to LCD byte memory
// bits Segments to address
// bitmask Bitmask for particular display item
// mode On, off or blink segments
// @return
// *************************************************************************************************
void write_lcd_mem(uint8_t * lcdmem, uint8_t bits, uint8_t bitmask, uint8_t state)
{
if (state == SEG_ON)
{
// Clear segments before writing
*lcdmem = (uint8_t)(*lcdmem & ~bitmask);
// Set visible segments
*lcdmem = (uint8_t)(*lcdmem | bits);
}
else if (state == SEG_OFF)
{
// Clear segments
*lcdmem = (uint8_t)(*lcdmem & ~bitmask);
}
else if (state == SEG_ON_BLINK_ON)
{
// Clear visible / blink segments before writing
*lcdmem = (uint8_t)(*lcdmem & ~bitmask);
*(lcdmem+0x20) = (uint8_t)(*(lcdmem+0x20) & ~bitmask);
// Set visible / blink segments
*lcdmem = (uint8_t)(*lcdmem | bits);
*(lcdmem+0x20) = (uint8_t)(*(lcdmem+0x20) | bits);
}
else if (state == SEG_ON_BLINK_OFF)
{
// Clear visible segments before writing
*lcdmem = (uint8_t)(*lcdmem & ~bitmask);
// Set visible segments
*lcdmem = (uint8_t)(*lcdmem | bits);
// Clear blink segments
*(lcdmem+0x20) = (uint8_t)(*(lcdmem+0x20) & ~bitmask);
}
else if (state == SEG_OFF_BLINK_OFF)
{
// Clear segments
*lcdmem = (uint8_t)(*lcdmem & ~bitmask);
// Clear blink segments
*(lcdmem+0x20) = (uint8_t)(*(lcdmem+0x20) & ~bitmask);
}
}
// *************************************************************************************************
// @fn itoa
// @brief Generic integer to array routine. Converts integer n to string.
// Default conversion result has leading zeros, e.g. "00123"
// Option to convert leading '0' into whitespace (blanks)
// @param uint32_t n integer to convert
// uint8_t digits number of digits
// uint8_t blanks fill up result string with number of whitespaces instead of leading zeros
// @return uint8_t string
// *************************************************************************************************
uint8_t * itoa(uint32_t n, uint8_t digits, uint8_t blanks)
{
uint8_t i;
uint8_t digits1 = digits;
// Preset result string
memcpy(itoa_str, "0000000", 7);
// Return empty string if number of digits is invalid (valid range for digits: 1-7)
if ((digits == 0) || (digits > 7)) return (itoa_str);
// Numbers 0 .. 180 can be copied from itoa_conversion_table without conversion
if (n <= 180)
{
if (digits >= 3)
{
memcpy(itoa_str+(digits-3), itoa_conversion_table[n], 3);
}
else // digits == 1 || 2
{
memcpy(itoa_str, itoa_conversion_table[n]+(3-digits), digits);
}
}
else // For n > 180 need to calculate string content
{
// Calculate digits from least to most significant number
do
{
itoa_str[digits-1] = n % 10 + '0';
n /= 10;
} while (--digits > 0);
}
// Remove specified number of leading '0', always keep last one
i = 0;
while ((itoa_str[i] == '0') && (i < digits1-1))
{
if (blanks > 0)
{
// Convert only specified number of leading '0'
itoa_str[i]=' ';
blanks--;
}
i++;
}
return (itoa_str);
}
// *************************************************************************************************
// @fn display_value1
// @brief Generic decimal display routine. Used exclusively by set_value function.
// @param uint8_t segments LCD segments where value is displayed
// uint32_t value Integer value to be displayed
// uint8_t digits Number of digits to convert
// uint8_t blanks Number of leadings blanks in itoa result string
// @return none
// *************************************************************************************************
void display_value1(uint8_t segments, uint32_t value, uint8_t digits, uint8_t blanks, uint8_t disp_mode)
{
uint8_t * str;
str = itoa(value, digits, blanks);
// Display string in blink mode
display_chars(segments, str, disp_mode);
}
// *************************************************************************************************
// @fn display_symbol
// @brief Switch symbol on or off on LCD.
// @param uint8_t symbol A valid LCD symbol (index 0..42)
// uint8_t state SEG_ON, SEG_OFF, SEG_BLINK
// @return none
// *************************************************************************************************
void display_symbol(uint8_t symbol, uint8_t mode)
{
uint8_t * lcdmem;
uint8_t bits;
uint8_t bitmask;
if (symbol <= LCD_SEG_L2_DP)
{
// Get LCD memory address for symbol from table
lcdmem = (uint8_t *)segments_lcdmem[symbol];
// Get bits for symbol from table
bits = segments_bitmask[symbol];
// Bitmask for symbols equals bits
bitmask = bits;
// Write LCD memory
write_lcd_mem(lcdmem, bits, bitmask, mode);
}
}
// *************************************************************************************************
// @fn display_char
// @brief Write to 7-segment characters.
// @param uint8_t segment A valid LCD segment
// uint8_t chr Character to display
// uint8_t mode SEG_ON, SEG_OFF, SEG_BLINK
// @return none
// *************************************************************************************************
void display_char(uint8_t segment, uint8_t chr, uint8_t mode)
{
uint8_t * lcdmem; // Pointer to LCD memory
uint8_t bitmask; // Bitmask for character
uint8_t bits, bits1; // Bits to write
// Write to single 7-segment character
if ((segment >= LCD_SEG_L1_3) && (segment <= LCD_SEG_L2_DP))
{
// Get LCD memory address for segment from table
lcdmem = (uint8_t *)segments_lcdmem[segment];
// Get bitmask for character from table
bitmask = segments_bitmask[segment];
// Get bits from font set
if ((chr >= 0x30) && (chr <= 0x5A))
{
// Use font set
bits = lcd_font[chr-0x30];
}
else if (chr == 0x2D)
{
// '-' not in font set
bits = BIT1;
}
else
{
// Other characters map to ' ' (blank)
bits = 0;
}
// When addressing LINE2 7-segment characters need to swap high- and low-nibble,
// because LCD COM/SEG assignment is mirrored against LINE1
if (segment >= LCD_SEG_L2_5)
{
bits1 = ((bits << 4) & 0xF0) | ((bits >> 4) & 0x0F);
bits = bits1;
// When addressing LCD_SEG_L2_5, need to convert ASCII '1' and 'L' to 1 bit,
// because LCD COM/SEG assignment is special for this incomplete character
if (segment == LCD_SEG_L2_5)
{
if ((chr == '1') || (chr == 'L')) bits = BIT7;
}
}
// Physically write to LCD memory
write_lcd_mem(lcdmem, bits, bitmask, mode);
}
}
// *************************************************************************************************
// @fn display_chars
// @brief Write to consecutive 7-segment characters.
// @param uint8_t segments LCD segment array
// uint8_t * str Pointer to a string
// uint8_t mode SEG_ON, SEG_OFF, SEG_BLINK
// @return none
// *************************************************************************************************
void display_chars(uint8_t segments, uint8_t * str, uint8_t mode)
{
uint8_t i;
uint8_t length = 0; // Write length
uint8_t char_start = 0; // Starting point for consecutive write
switch (segments)
{
// LINE1
case LCD_SEG_L1_3_0: length=4; char_start=LCD_SEG_L1_3; break;
case LCD_SEG_L1_2_0: length=3; char_start=LCD_SEG_L1_2; break;
case LCD_SEG_L1_1_0: length=2; char_start=LCD_SEG_L1_1; break;
case LCD_SEG_L1_3_1: length=3; char_start=LCD_SEG_L1_3; break;
case LCD_SEG_L1_3_2: length=2; char_start=LCD_SEG_L1_3; break;
// LINE2
case LCD_SEG_L2_5_0: length=6; char_start=LCD_SEG_L2_5; break;
case LCD_SEG_L2_4_0: length=5; char_start=LCD_SEG_L2_4; break;
case LCD_SEG_L2_3_0: length=4; char_start=LCD_SEG_L2_3; break;
case LCD_SEG_L2_2_0: length=3; char_start=LCD_SEG_L2_2; break;
case LCD_SEG_L2_1_0: length=2; char_start=LCD_SEG_L2_1; break;
case LCD_SEG_L2_5_4: length=2; char_start=LCD_SEG_L2_5; break;
case LCD_SEG_L2_5_2: length=4; char_start=LCD_SEG_L2_5; break;
case LCD_SEG_L2_3_2: length=2; char_start=LCD_SEG_L2_3; break;
case LCD_SEG_L2_4_2: length=3; char_start=LCD_SEG_L2_4; break;
}
// Write to consecutive digits
for(i=0; i<length; i++)
{
// Use single character routine to write display memory
display_char(char_start+i, *(str+i), mode);
}
}
// *************************************************************************************************
// @fn switch_seg
// @brief Returns index of 7-segment character. Required for display routines that can draw
// information on both lines.
// @param uint8_t line LINE1, LINE2
// uint8_t index1 Index of LINE1
// uint8_t index2 Index of LINE2
// @return uint8
// *************************************************************************************************
uint8_t switch_seg(uint8_t line, uint8_t index1, uint8_t index2)
{
if (line == LINE1)
{
return index1;
}
else // line == LINE2
{
return index2;
}
}
// *************************************************************************************************
// @fn start_blink
// @brief Start blinking.
// @param none
// @return none
// *************************************************************************************************
void start_blink(void)
{
LCDBBLKCTL |= LCDBLKMOD0;
}
// *************************************************************************************************
// @fn stop_blink
// @brief Stop blinking.
// @param none
// @return none
// *************************************************************************************************
void stop_blink(void)
{
LCDBBLKCTL &= ~LCDBLKMOD0;
}
// *************************************************************************************************
// @fn stop_blink
// @brief Clear blinking memory.
// @param none
// @return none
// *************************************************************************************************
void clear_blink_mem(void)
{
LCDBMEMCTL |= LCDCLRBM;
}