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Mozilla Public License Version 2.0
 | 
			
		||||
==================================
 | 
			
		||||
 | 
			
		||||
1. Definitions
 | 
			
		||||
--------------
 | 
			
		||||
 | 
			
		||||
1.1. "Contributor"
 | 
			
		||||
    means each individual or legal entity that creates, contributes to
 | 
			
		||||
    the creation of, or owns Covered Software.
 | 
			
		||||
 | 
			
		||||
1.2. "Contributor Version"
 | 
			
		||||
    means the combination of the Contributions of others (if any) used
 | 
			
		||||
    by a Contributor and that particular Contributor's Contribution.
 | 
			
		||||
 | 
			
		||||
1.3. "Contribution"
 | 
			
		||||
    means Covered Software of a particular Contributor.
 | 
			
		||||
 | 
			
		||||
1.4. "Covered Software"
 | 
			
		||||
    means Source Code Form to which the initial Contributor has attached
 | 
			
		||||
    the notice in Exhibit A, the Executable Form of such Source Code
 | 
			
		||||
    Form, and Modifications of such Source Code Form, in each case
 | 
			
		||||
    including portions thereof.
 | 
			
		||||
 | 
			
		||||
1.5. "Incompatible With Secondary Licenses"
 | 
			
		||||
    means
 | 
			
		||||
 | 
			
		||||
    (a) that the initial Contributor has attached the notice described
 | 
			
		||||
        in Exhibit B to the Covered Software; or
 | 
			
		||||
 | 
			
		||||
    (b) that the Covered Software was made available under the terms of
 | 
			
		||||
        version 1.1 or earlier of the License, but not also under the
 | 
			
		||||
        terms of a Secondary License.
 | 
			
		||||
 | 
			
		||||
1.6. "Executable Form"
 | 
			
		||||
    means any form of the work other than Source Code Form.
 | 
			
		||||
 | 
			
		||||
1.7. "Larger Work"
 | 
			
		||||
    means a work that combines Covered Software with other material, in 
 | 
			
		||||
    a separate file or files, that is not Covered Software.
 | 
			
		||||
 | 
			
		||||
1.8. "License"
 | 
			
		||||
    means this document.
 | 
			
		||||
 | 
			
		||||
1.9. "Licensable"
 | 
			
		||||
    means having the right to grant, to the maximum extent possible,
 | 
			
		||||
    whether at the time of the initial grant or subsequently, any and
 | 
			
		||||
    all of the rights conveyed by this License.
 | 
			
		||||
 | 
			
		||||
1.10. "Modifications"
 | 
			
		||||
    means any of the following:
 | 
			
		||||
 | 
			
		||||
    (a) any file in Source Code Form that results from an addition to,
 | 
			
		||||
        deletion from, or modification of the contents of Covered
 | 
			
		||||
        Software; or
 | 
			
		||||
 | 
			
		||||
    (b) any new file in Source Code Form that contains any Covered
 | 
			
		||||
        Software.
 | 
			
		||||
 | 
			
		||||
1.11. "Patent Claims" of a Contributor
 | 
			
		||||
    means any patent claim(s), including without limitation, method,
 | 
			
		||||
    process, and apparatus claims, in any patent Licensable by such
 | 
			
		||||
    Contributor that would be infringed, but for the grant of the
 | 
			
		||||
    License, by the making, using, selling, offering for sale, having
 | 
			
		||||
    made, import, or transfer of either its Contributions or its
 | 
			
		||||
    Contributor Version.
 | 
			
		||||
 | 
			
		||||
1.12. "Secondary License"
 | 
			
		||||
    means either the GNU General Public License, Version 2.0, the GNU
 | 
			
		||||
    Lesser General Public License, Version 2.1, the GNU Affero General
 | 
			
		||||
    Public License, Version 3.0, or any later versions of those
 | 
			
		||||
    licenses.
 | 
			
		||||
 | 
			
		||||
1.13. "Source Code Form"
 | 
			
		||||
    means the form of the work preferred for making modifications.
 | 
			
		||||
 | 
			
		||||
1.14. "You" (or "Your")
 | 
			
		||||
    means an individual or a legal entity exercising rights under this
 | 
			
		||||
    License. For legal entities, "You" includes any entity that
 | 
			
		||||
    controls, is controlled by, or is under common control with You. For
 | 
			
		||||
    purposes of this definition, "control" means (a) the power, direct
 | 
			
		||||
    or indirect, to cause the direction or management of such entity,
 | 
			
		||||
    whether by contract or otherwise, or (b) ownership of more than
 | 
			
		||||
    fifty percent (50%) of the outstanding shares or beneficial
 | 
			
		||||
    ownership of such entity.
 | 
			
		||||
 | 
			
		||||
2. License Grants and Conditions
 | 
			
		||||
--------------------------------
 | 
			
		||||
 | 
			
		||||
2.1. Grants
 | 
			
		||||
 | 
			
		||||
Each Contributor hereby grants You a world-wide, royalty-free,
 | 
			
		||||
non-exclusive license:
 | 
			
		||||
 | 
			
		||||
(a) under intellectual property rights (other than patent or trademark)
 | 
			
		||||
    Licensable by such Contributor to use, reproduce, make available,
 | 
			
		||||
    modify, display, perform, distribute, and otherwise exploit its
 | 
			
		||||
    Contributions, either on an unmodified basis, with Modifications, or
 | 
			
		||||
    as part of a Larger Work; and
 | 
			
		||||
 | 
			
		||||
(b) under Patent Claims of such Contributor to make, use, sell, offer
 | 
			
		||||
    for sale, have made, import, and otherwise transfer either its
 | 
			
		||||
    Contributions or its Contributor Version.
 | 
			
		||||
 | 
			
		||||
2.2. Effective Date
 | 
			
		||||
 | 
			
		||||
The licenses granted in Section 2.1 with respect to any Contribution
 | 
			
		||||
become effective for each Contribution on the date the Contributor first
 | 
			
		||||
distributes such Contribution.
 | 
			
		||||
 | 
			
		||||
2.3. Limitations on Grant Scope
 | 
			
		||||
 | 
			
		||||
The licenses granted in this Section 2 are the only rights granted under
 | 
			
		||||
this License. No additional rights or licenses will be implied from the
 | 
			
		||||
distribution or licensing of Covered Software under this License.
 | 
			
		||||
Notwithstanding Section 2.1(b) above, no patent license is granted by a
 | 
			
		||||
Contributor:
 | 
			
		||||
 | 
			
		||||
(a) for any code that a Contributor has removed from Covered Software;
 | 
			
		||||
    or
 | 
			
		||||
 | 
			
		||||
(b) for infringements caused by: (i) Your and any other third party's
 | 
			
		||||
    modifications of Covered Software, or (ii) the combination of its
 | 
			
		||||
    Contributions with other software (except as part of its Contributor
 | 
			
		||||
    Version); or
 | 
			
		||||
 | 
			
		||||
(c) under Patent Claims infringed by Covered Software in the absence of
 | 
			
		||||
    its Contributions.
 | 
			
		||||
 | 
			
		||||
This License does not grant any rights in the trademarks, service marks,
 | 
			
		||||
or logos of any Contributor (except as may be necessary to comply with
 | 
			
		||||
the notice requirements in Section 3.4).
 | 
			
		||||
 | 
			
		||||
2.4. Subsequent Licenses
 | 
			
		||||
 | 
			
		||||
No Contributor makes additional grants as a result of Your choice to
 | 
			
		||||
distribute the Covered Software under a subsequent version of this
 | 
			
		||||
License (see Section 10.2) or under the terms of a Secondary License (if
 | 
			
		||||
permitted under the terms of Section 3.3).
 | 
			
		||||
 | 
			
		||||
2.5. Representation
 | 
			
		||||
 | 
			
		||||
Each Contributor represents that the Contributor believes its
 | 
			
		||||
Contributions are its original creation(s) or it has sufficient rights
 | 
			
		||||
to grant the rights to its Contributions conveyed by this License.
 | 
			
		||||
 | 
			
		||||
2.6. Fair Use
 | 
			
		||||
 | 
			
		||||
This License is not intended to limit any rights You have under
 | 
			
		||||
applicable copyright doctrines of fair use, fair dealing, or other
 | 
			
		||||
equivalents.
 | 
			
		||||
 | 
			
		||||
2.7. Conditions
 | 
			
		||||
 | 
			
		||||
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
 | 
			
		||||
in Section 2.1.
 | 
			
		||||
 | 
			
		||||
3. Responsibilities
 | 
			
		||||
-------------------
 | 
			
		||||
 | 
			
		||||
3.1. Distribution of Source Form
 | 
			
		||||
 | 
			
		||||
All distribution of Covered Software in Source Code Form, including any
 | 
			
		||||
Modifications that You create or to which You contribute, must be under
 | 
			
		||||
the terms of this License. You must inform recipients that the Source
 | 
			
		||||
Code Form of the Covered Software is governed by the terms of this
 | 
			
		||||
License, and how they can obtain a copy of this License. You may not
 | 
			
		||||
attempt to alter or restrict the recipients' rights in the Source Code
 | 
			
		||||
Form.
 | 
			
		||||
 | 
			
		||||
3.2. Distribution of Executable Form
 | 
			
		||||
 | 
			
		||||
If You distribute Covered Software in Executable Form then:
 | 
			
		||||
 | 
			
		||||
(a) such Covered Software must also be made available in Source Code
 | 
			
		||||
    Form, as described in Section 3.1, and You must inform recipients of
 | 
			
		||||
    the Executable Form how they can obtain a copy of such Source Code
 | 
			
		||||
    Form by reasonable means in a timely manner, at a charge no more
 | 
			
		||||
    than the cost of distribution to the recipient; and
 | 
			
		||||
 | 
			
		||||
(b) You may distribute such Executable Form under the terms of this
 | 
			
		||||
    License, or sublicense it under different terms, provided that the
 | 
			
		||||
    license for the Executable Form does not attempt to limit or alter
 | 
			
		||||
    the recipients' rights in the Source Code Form under this License.
 | 
			
		||||
 | 
			
		||||
3.3. Distribution of a Larger Work
 | 
			
		||||
 | 
			
		||||
You may create and distribute a Larger Work under terms of Your choice,
 | 
			
		||||
provided that You also comply with the requirements of this License for
 | 
			
		||||
the Covered Software. If the Larger Work is a combination of Covered
 | 
			
		||||
Software with a work governed by one or more Secondary Licenses, and the
 | 
			
		||||
Covered Software is not Incompatible With Secondary Licenses, this
 | 
			
		||||
License permits You to additionally distribute such Covered Software
 | 
			
		||||
under the terms of such Secondary License(s), so that the recipient of
 | 
			
		||||
the Larger Work may, at their option, further distribute the Covered
 | 
			
		||||
Software under the terms of either this License or such Secondary
 | 
			
		||||
License(s).
 | 
			
		||||
 | 
			
		||||
3.4. Notices
 | 
			
		||||
 | 
			
		||||
You may not remove or alter the substance of any license notices
 | 
			
		||||
(including copyright notices, patent notices, disclaimers of warranty,
 | 
			
		||||
or limitations of liability) contained within the Source Code Form of
 | 
			
		||||
the Covered Software, except that You may alter any license notices to
 | 
			
		||||
the extent required to remedy known factual inaccuracies.
 | 
			
		||||
 | 
			
		||||
3.5. Application of Additional Terms
 | 
			
		||||
 | 
			
		||||
You may choose to offer, and to charge a fee for, warranty, support,
 | 
			
		||||
indemnity or liability obligations to one or more recipients of Covered
 | 
			
		||||
Software. However, You may do so only on Your own behalf, and not on
 | 
			
		||||
behalf of any Contributor. You must make it absolutely clear that any
 | 
			
		||||
such warranty, support, indemnity, or liability obligation is offered by
 | 
			
		||||
You alone, and You hereby agree to indemnify every Contributor for any
 | 
			
		||||
liability incurred by such Contributor as a result of warranty, support,
 | 
			
		||||
indemnity or liability terms You offer. You may include additional
 | 
			
		||||
disclaimers of warranty and limitations of liability specific to any
 | 
			
		||||
jurisdiction.
 | 
			
		||||
 | 
			
		||||
4. Inability to Comply Due to Statute or Regulation
 | 
			
		||||
---------------------------------------------------
 | 
			
		||||
 | 
			
		||||
If it is impossible for You to comply with any of the terms of this
 | 
			
		||||
License with respect to some or all of the Covered Software due to
 | 
			
		||||
statute, judicial order, or regulation then You must: (a) comply with
 | 
			
		||||
the terms of this License to the maximum extent possible; and (b)
 | 
			
		||||
describe the limitations and the code they affect. Such description must
 | 
			
		||||
be placed in a text file included with all distributions of the Covered
 | 
			
		||||
Software under this License. Except to the extent prohibited by statute
 | 
			
		||||
or regulation, such description must be sufficiently detailed for a
 | 
			
		||||
recipient of ordinary skill to be able to understand it.
 | 
			
		||||
 | 
			
		||||
5. Termination
 | 
			
		||||
--------------
 | 
			
		||||
 | 
			
		||||
5.1. The rights granted under this License will terminate automatically
 | 
			
		||||
if You fail to comply with any of its terms. However, if You become
 | 
			
		||||
compliant, then the rights granted under this License from a particular
 | 
			
		||||
Contributor are reinstated (a) provisionally, unless and until such
 | 
			
		||||
Contributor explicitly and finally terminates Your grants, and (b) on an
 | 
			
		||||
ongoing basis, if such Contributor fails to notify You of the
 | 
			
		||||
non-compliance by some reasonable means prior to 60 days after You have
 | 
			
		||||
come back into compliance. Moreover, Your grants from a particular
 | 
			
		||||
Contributor are reinstated on an ongoing basis if such Contributor
 | 
			
		||||
notifies You of the non-compliance by some reasonable means, this is the
 | 
			
		||||
first time You have received notice of non-compliance with this License
 | 
			
		||||
from such Contributor, and You become compliant prior to 30 days after
 | 
			
		||||
Your receipt of the notice.
 | 
			
		||||
 | 
			
		||||
5.2. If You initiate litigation against any entity by asserting a patent
 | 
			
		||||
infringement claim (excluding declaratory judgment actions,
 | 
			
		||||
counter-claims, and cross-claims) alleging that a Contributor Version
 | 
			
		||||
directly or indirectly infringes any patent, then the rights granted to
 | 
			
		||||
You by any and all Contributors for the Covered Software under Section
 | 
			
		||||
2.1 of this License shall terminate.
 | 
			
		||||
 | 
			
		||||
5.3. In the event of termination under Sections 5.1 or 5.2 above, all
 | 
			
		||||
end user license agreements (excluding distributors and resellers) which
 | 
			
		||||
have been validly granted by You or Your distributors under this License
 | 
			
		||||
prior to termination shall survive termination.
 | 
			
		||||
 | 
			
		||||
************************************************************************
 | 
			
		||||
*                                                                      *
 | 
			
		||||
*  6. Disclaimer of Warranty                                           *
 | 
			
		||||
*  -------------------------                                           *
 | 
			
		||||
*                                                                      *
 | 
			
		||||
*  Covered Software is provided under this License on an "as is"       *
 | 
			
		||||
*  basis, without warranty of any kind, either expressed, implied, or  *
 | 
			
		||||
*  statutory, including, without limitation, warranties that the       *
 | 
			
		||||
*  Covered Software is free of defects, merchantable, fit for a        *
 | 
			
		||||
*  particular purpose or non-infringing. The entire risk as to the     *
 | 
			
		||||
*  quality and performance of the Covered Software is with You.        *
 | 
			
		||||
*  Should any Covered Software prove defective in any respect, You     *
 | 
			
		||||
*  (not any Contributor) assume the cost of any necessary servicing,   *
 | 
			
		||||
*  repair, or correction. This disclaimer of warranty constitutes an   *
 | 
			
		||||
*  essential part of this License. No use of any Covered Software is   *
 | 
			
		||||
*  authorized under this License except under this disclaimer.         *
 | 
			
		||||
*                                                                      *
 | 
			
		||||
************************************************************************
 | 
			
		||||
 | 
			
		||||
************************************************************************
 | 
			
		||||
*                                                                      *
 | 
			
		||||
*  7. Limitation of Liability                                          *
 | 
			
		||||
*  --------------------------                                          *
 | 
			
		||||
*                                                                      *
 | 
			
		||||
*  Under no circumstances and under no legal theory, whether tort      *
 | 
			
		||||
*  (including negligence), contract, or otherwise, shall any           *
 | 
			
		||||
*  Contributor, or anyone who distributes Covered Software as          *
 | 
			
		||||
*  permitted above, be liable to You for any direct, indirect,         *
 | 
			
		||||
*  special, incidental, or consequential damages of any character      *
 | 
			
		||||
*  including, without limitation, damages for lost profits, loss of    *
 | 
			
		||||
*  goodwill, work stoppage, computer failure or malfunction, or any    *
 | 
			
		||||
*  and all other commercial damages or losses, even if such party      *
 | 
			
		||||
*  shall have been informed of the possibility of such damages. This   *
 | 
			
		||||
*  limitation of liability shall not apply to liability for death or   *
 | 
			
		||||
*  personal injury resulting from such party's negligence to the       *
 | 
			
		||||
*  extent applicable law prohibits such limitation. Some               *
 | 
			
		||||
*  jurisdictions do not allow the exclusion or limitation of           *
 | 
			
		||||
*  incidental or consequential damages, so this exclusion and          *
 | 
			
		||||
*  limitation may not apply to You.                                    *
 | 
			
		||||
*                                                                      *
 | 
			
		||||
************************************************************************
 | 
			
		||||
 | 
			
		||||
8. Litigation
 | 
			
		||||
-------------
 | 
			
		||||
 | 
			
		||||
Any litigation relating to this License may be brought only in the
 | 
			
		||||
courts of a jurisdiction where the defendant maintains its principal
 | 
			
		||||
place of business and such litigation shall be governed by laws of that
 | 
			
		||||
jurisdiction, without reference to its conflict-of-law provisions.
 | 
			
		||||
Nothing in this Section shall prevent a party's ability to bring
 | 
			
		||||
cross-claims or counter-claims.
 | 
			
		||||
 | 
			
		||||
9. Miscellaneous
 | 
			
		||||
----------------
 | 
			
		||||
 | 
			
		||||
This License represents the complete agreement concerning the subject
 | 
			
		||||
matter hereof. If any provision of this License is held to be
 | 
			
		||||
unenforceable, such provision shall be reformed only to the extent
 | 
			
		||||
necessary to make it enforceable. Any law or regulation which provides
 | 
			
		||||
that the language of a contract shall be construed against the drafter
 | 
			
		||||
shall not be used to construe this License against a Contributor.
 | 
			
		||||
 | 
			
		||||
10. Versions of the License
 | 
			
		||||
---------------------------
 | 
			
		||||
 | 
			
		||||
10.1. New Versions
 | 
			
		||||
 | 
			
		||||
Mozilla Foundation is the license steward. Except as provided in Section
 | 
			
		||||
10.3, no one other than the license steward has the right to modify or
 | 
			
		||||
publish new versions of this License. Each version will be given a
 | 
			
		||||
distinguishing version number.
 | 
			
		||||
 | 
			
		||||
10.2. Effect of New Versions
 | 
			
		||||
 | 
			
		||||
You may distribute the Covered Software under the terms of the version
 | 
			
		||||
of the License under which You originally received the Covered Software,
 | 
			
		||||
or under the terms of any subsequent version published by the license
 | 
			
		||||
steward.
 | 
			
		||||
 | 
			
		||||
10.3. Modified Versions
 | 
			
		||||
 | 
			
		||||
If you create software not governed by this License, and you want to
 | 
			
		||||
create a new license for such software, you may create and use a
 | 
			
		||||
modified version of this License if you rename the license and remove
 | 
			
		||||
any references to the name of the license steward (except to note that
 | 
			
		||||
such modified license differs from this License).
 | 
			
		||||
 | 
			
		||||
10.4. Distributing Source Code Form that is Incompatible With Secondary
 | 
			
		||||
Licenses
 | 
			
		||||
 | 
			
		||||
If You choose to distribute Source Code Form that is Incompatible With
 | 
			
		||||
Secondary Licenses under the terms of this version of the License, the
 | 
			
		||||
notice described in Exhibit B of this License must be attached.
 | 
			
		||||
 | 
			
		||||
Exhibit A - Source Code Form License Notice
 | 
			
		||||
-------------------------------------------
 | 
			
		||||
 | 
			
		||||
  This Source Code Form is subject to the terms of the Mozilla Public
 | 
			
		||||
  License, v. 2.0. If a copy of the MPL was not distributed with this
 | 
			
		||||
  file, You can obtain one at http://mozilla.org/MPL/2.0/.
 | 
			
		||||
 | 
			
		||||
If it is not possible or desirable to put the notice in a particular
 | 
			
		||||
file, then You may include the notice in a location (such as a LICENSE
 | 
			
		||||
file in a relevant directory) where a recipient would be likely to look
 | 
			
		||||
for such a notice.
 | 
			
		||||
 | 
			
		||||
You may add additional accurate notices of copyright ownership.
 | 
			
		||||
 | 
			
		||||
Exhibit B - "Incompatible With Secondary Licenses" Notice
 | 
			
		||||
---------------------------------------------------------
 | 
			
		||||
 | 
			
		||||
  This Source Code Form is "Incompatible With Secondary Licenses", as
 | 
			
		||||
  defined by the Mozilla Public License, v. 2.0.
 | 
			
		||||
							
								
								
									
										20
									
								
								Makefile
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										20
									
								
								Makefile
									
									
									
									
									
										Normal file
									
								
							@ -0,0 +1,20 @@
 | 
			
		||||
MCU=atmega8
 | 
			
		||||
CFLAGS=-g -Wall -mcall-prologues -mmcu=$(MCU) -Os -DF_CPU=8000000
 | 
			
		||||
LDFLAGS=-Wl,-gc-sections -Wl,-relax
 | 
			
		||||
CC=avr-gcc
 | 
			
		||||
TARGET=main
 | 
			
		||||
OBJECT_FILES=main.o hcs12ss59t.o vfd_fun.o
 | 
			
		||||
 | 
			
		||||
all: $(TARGET).hex
 | 
			
		||||
 | 
			
		||||
clean:
 | 
			
		||||
	rm -f *.o *.hex *.obj *.hex
 | 
			
		||||
 | 
			
		||||
%.hex: %.obj
 | 
			
		||||
	avr-objcopy -R .eeprom -O ihex $< $@
 | 
			
		||||
 | 
			
		||||
%.obj: $(OBJECT_FILES)
 | 
			
		||||
	$(CC) $(CFLAGS) $(OBJECT_FILES) $(LDFLAGS) -o $@
 | 
			
		||||
 | 
			
		||||
program: $(TARGET).hex
 | 
			
		||||
	avrdude -p $(MCU) -c usbasp -U flash:w:$(TARGET).hex
 | 
			
		||||
							
								
								
									
										124
									
								
								hcs12ss59t.c
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										124
									
								
								hcs12ss59t.c
									
									
									
									
									
										Normal file
									
								
							@ -0,0 +1,124 @@
 | 
			
		||||
/*
 | 
			
		||||
 * HCS12SS59T AVR Library
 | 
			
		||||
 *   Copyright (c) 2017 Markus Koch <markus@notsyncing.net>
 | 
			
		||||
 *
 | 
			
		||||
 * This Source Code Form is subject to the terms of the Mozilla Public
 | 
			
		||||
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 | 
			
		||||
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include "hcs12ss59t.h"
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @brief hcs12ss59t_get_char Converts an ASCII character to the code used by the display
 | 
			
		||||
 * @param c the character to be converted
 | 
			
		||||
 * @return the converted character
 | 
			
		||||
 */
 | 
			
		||||
char hcs12ss59t_get_char(char c)
 | 
			
		||||
{
 | 
			
		||||
	if (c >= '@' && c <= '_')
 | 
			
		||||
		c -= 48;
 | 
			
		||||
	else if (c >= ' ' && c <= '?')
 | 
			
		||||
		c += 16;
 | 
			
		||||
	else if (c >= 'a' && c <= 'z')
 | 
			
		||||
		c -= 80;
 | 
			
		||||
	else
 | 
			
		||||
		c = 79;
 | 
			
		||||
	return c;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @brief hc12ss59t_init Initializes the I/O ports and SPI master
 | 
			
		||||
 */
 | 
			
		||||
void hcs12ss59t_init()
 | 
			
		||||
{
 | 
			
		||||
	HCS12SS59T_SPI_DDR = (1 << HCS12SS59T_SPI_MOSI) |
 | 
			
		||||
			(1 << HCS12SS59T_SPI_SCK) |
 | 
			
		||||
			(1 << HCS12SS59T_SPI_SS_N) |
 | 
			
		||||
			(1 << HCS12SS59T_SPI_RESET_N);
 | 
			
		||||
	SPCR = (1 << SPE) | (1 << MSTR) | (1 << SPR0) |
 | 
			
		||||
			(1 << SPR1) | (1 << DORD);
 | 
			
		||||
 | 
			
		||||
	hcs12ss59t_reset();
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @brief hcs12ss59t_send_byte sends a byte over SPI
 | 
			
		||||
 * @param c the data byte
 | 
			
		||||
 */
 | 
			
		||||
void hcs12ss59t_send_byte(char c)
 | 
			
		||||
{
 | 
			
		||||
	SPDR = c;
 | 
			
		||||
	while(!(SPSR & (1<<SPIF)));
 | 
			
		||||
	_delay_us(8);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @brief hcs12ss59t_send_cmd Selects the device, sends the command and deselects the device
 | 
			
		||||
 * @param cmd the command
 | 
			
		||||
 * @param arg any arguments. Use 0 if none are required
 | 
			
		||||
 */
 | 
			
		||||
void hcs12ss59t_send_cmd(char cmd, char arg)
 | 
			
		||||
{
 | 
			
		||||
	HCS12SS59T_SELECT;
 | 
			
		||||
	hcs12ss59t_send_byte(cmd | arg);
 | 
			
		||||
	HCS12SS59T_DESELECT;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @brief hcs12ss59t_set_brightness Set the brightness of the VFD
 | 
			
		||||
 * @param brightness brightness level (0 - 15)
 | 
			
		||||
 */
 | 
			
		||||
void hcs12ss59t_set_brightness(char brightness)
 | 
			
		||||
{
 | 
			
		||||
	hcs12ss59t_send_cmd(HCS12SS59T_DUTY, brightness);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @brief hcs12ss59t_reset Performs a reset of the display controller
 | 
			
		||||
 */
 | 
			
		||||
void hcs12ss59t_reset()
 | 
			
		||||
{
 | 
			
		||||
	/* Perform a HW reset */
 | 
			
		||||
	HCS12SS59T_SPI_PORT &= ~(1 << HCS12SS59T_SPI_RESET_N);
 | 
			
		||||
	_delay_us(1); /* > 250 ns */
 | 
			
		||||
	HCS12SS59T_SPI_PORT |= (1 << HCS12SS59T_SPI_RESET_N);
 | 
			
		||||
	_delay_us(1); /* > 250 ns */
 | 
			
		||||
 | 
			
		||||
	/* Configure controlller for VFD */
 | 
			
		||||
	hcs12ss59t_send_cmd(HCS12SS59T_NUMDIGIT, HCS12SS59T_NUMDIGITS);
 | 
			
		||||
	hcs12ss59t_send_cmd(HCS12SS59T_LIGHTS, HCS12SS59T_LINORM);
 | 
			
		||||
	hcs12ss59t_set_brightness(HCS12SS59T_DEFAULT_BRIGHTNESS);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @brief hcs12ss59t_set_text update the text on the display
 | 
			
		||||
 * @param text a text buffer with size HCS12SS59T_NUMDIGITS
 | 
			
		||||
 */
 | 
			
		||||
void hcs12ss59t_set_text(char *text)
 | 
			
		||||
{
 | 
			
		||||
	char *ptr;
 | 
			
		||||
 | 
			
		||||
	HCS12SS59T_SELECT;
 | 
			
		||||
	hcs12ss59t_send_byte(HCS12SS59T_DCRAM_WR);
 | 
			
		||||
	for (ptr = text + HCS12SS59T_NUMDIGITS - 1; ptr >= text; --ptr) {
 | 
			
		||||
		hcs12ss59t_send_byte(hcs12ss59t_get_char(*ptr));
 | 
			
		||||
	}
 | 
			
		||||
	HCS12SS59T_DESELECT;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @brief hcs12ss59t_set_text update the text on the display without applying any character transformations
 | 
			
		||||
 * @param data a buffer with size HCS12SS59T_NUMDIGITS
 | 
			
		||||
 */
 | 
			
		||||
void hcs12ss59t_set_buffer(char *data)
 | 
			
		||||
{
 | 
			
		||||
	char *ptr;
 | 
			
		||||
 | 
			
		||||
	HCS12SS59T_SELECT;
 | 
			
		||||
	hcs12ss59t_send_byte(HCS12SS59T_DCRAM_WR);
 | 
			
		||||
	for (ptr = data + HCS12SS59T_NUMDIGITS - 1; ptr >= data; --ptr) {
 | 
			
		||||
		hcs12ss59t_send_byte(*ptr);
 | 
			
		||||
	}
 | 
			
		||||
	HCS12SS59T_DESELECT;
 | 
			
		||||
}
 | 
			
		||||
							
								
								
									
										59
									
								
								hcs12ss59t.h
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										59
									
								
								hcs12ss59t.h
									
									
									
									
									
										Normal file
									
								
							@ -0,0 +1,59 @@
 | 
			
		||||
/*
 | 
			
		||||
 * HCS12SS59T AVR Library
 | 
			
		||||
 *   Copyright (c) 2017 Markus Koch <markus@notsyncing.net>
 | 
			
		||||
 *
 | 
			
		||||
 * This Source Code Form is subject to the terms of the Mozilla Public
 | 
			
		||||
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 | 
			
		||||
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 | 
			
		||||
 *
 | 
			
		||||
 * Thanks to qrti on GitHub for his research into this display!
 | 
			
		||||
 *   https://github.com/qrti/VFD-HCS-12SS59T
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#ifndef HCS12SS59T_H
 | 
			
		||||
#define HCS12SS59T_H
 | 
			
		||||
 | 
			
		||||
#include <avr/io.h>
 | 
			
		||||
#include <util/delay.h>
 | 
			
		||||
 | 
			
		||||
/* AVR hardware configuration */
 | 
			
		||||
#define HCS12SS59T_SPI_DDR DDRB
 | 
			
		||||
#define HCS12SS59T_SPI_PORT PORTB
 | 
			
		||||
#define HCS12SS59T_SPI_MOSI PB3
 | 
			
		||||
#define HCS12SS59T_SPI_SCK PB5
 | 
			
		||||
#define HCS12SS59T_SPI_SS_N PB2
 | 
			
		||||
#define HCS12SS59T_SPI_RESET_N PB0
 | 
			
		||||
 | 
			
		||||
/* Display commands and information */
 | 
			
		||||
#define HCS12SS59T_DCRAM_WR 0x10 /* ccccaaaa dddddddd dddddddd .. */
 | 
			
		||||
#define HCS12SS59T_CGRAM_WR 0x20 /* ccccaaaa dddddddd dddddddd .. */
 | 
			
		||||
#define HCS12SS59T_ADRAM_WR 0x30 /* ccccaaaa ******dd ******dd .. */
 | 
			
		||||
#define HCS12SS59T_DUTY 0x50 /* ccccdddd (dddd 0 to 15)*/
 | 
			
		||||
#define HCS12SS59T_NUMDIGIT 0x60 /* ccccdddd */
 | 
			
		||||
#define HCS12SS59T_LIGHTS 0x70 /* cccc**dd */
 | 
			
		||||
 | 
			
		||||
#define HCS12SS59T_LINORM 0x00 /* Display normal */
 | 
			
		||||
#define HCS12SS59T_LIOFF 0x01 /* Display off */
 | 
			
		||||
#define HCS12SS59T_LION 0x02 /* Display all on (test) */
 | 
			
		||||
 | 
			
		||||
#define HCS12SS59T_NUMDIGITS 12 /* Display digit width */
 | 
			
		||||
#define HCS12SS59T_DEFAULT_BRIGHTNESS 4 /* Default brightness */
 | 
			
		||||
 | 
			
		||||
/* Macros */
 | 
			
		||||
#define HCS12SS59T_SELECT {HCS12SS59T_SPI_PORT &= ~(1 << HCS12SS59T_SPI_SS_N);\
 | 
			
		||||
	_delay_us(1); /* > 250 ns */}
 | 
			
		||||
#define HCS12SS59T_DESELECT {HCS12SS59T_SPI_PORT |= (1 << HCS12SS59T_SPI_SS_N);\
 | 
			
		||||
	_delay_us(1); /* > 250 ns */}
 | 
			
		||||
 | 
			
		||||
/* User functions */
 | 
			
		||||
void hcs12ss59t_init();
 | 
			
		||||
void hcs12ss59t_reset();
 | 
			
		||||
void hcs12ss59t_set_text(char *text);
 | 
			
		||||
void hcs12ss59t_set_buffer(char *data);
 | 
			
		||||
void hcs12ss59t_set_brightness(char brightness);
 | 
			
		||||
 | 
			
		||||
/* Low level functions */
 | 
			
		||||
void hcs12ss59t_send_byte(char c);
 | 
			
		||||
char hcs12ss59t_get_char(char c);
 | 
			
		||||
 | 
			
		||||
#endif // HCS12SS59T_H
 | 
			
		||||
							
								
								
									
										30
									
								
								main.c
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										30
									
								
								main.c
									
									
									
									
									
										Normal file
									
								
							@ -0,0 +1,30 @@
 | 
			
		||||
#include <avr/io.h>
 | 
			
		||||
#include <util/delay.h>
 | 
			
		||||
#include <stdlib.h>
 | 
			
		||||
 | 
			
		||||
#include "hcs12ss59t.h"
 | 
			
		||||
#include "vfd_fun.h"
 | 
			
		||||
 | 
			
		||||
#define DELAY 1000
 | 
			
		||||
#define ANIMATION ANIMATION_SLIDE
 | 
			
		||||
 | 
			
		||||
int main() {
 | 
			
		||||
	DDRC = (1 << PC5);
 | 
			
		||||
 | 
			
		||||
	// Setup
 | 
			
		||||
	hcs12ss59t_init();
 | 
			
		||||
	hcs12ss59t_set_brightness(8);
 | 
			
		||||
 | 
			
		||||
	while (1) {
 | 
			
		||||
		vfd_animate_to(" HCS12SS59T ", rand() % 3);
 | 
			
		||||
		_delay_ms(DELAY);
 | 
			
		||||
		vfd_animate_to(" VF Display ", rand() % 3);
 | 
			
		||||
		_delay_ms(DELAY);
 | 
			
		||||
		vfd_animate_to("AVRC LIBRARY", rand() % 3);
 | 
			
		||||
		_delay_ms(DELAY);
 | 
			
		||||
		vfd_animate_to("10.0.100.234", rand() % 3);
 | 
			
		||||
		_delay_ms(DELAY);
 | 
			
		||||
		vfd_animate_to("ElPsyCongroo", rand() % 3);
 | 
			
		||||
		_delay_ms(DELAY);
 | 
			
		||||
	}
 | 
			
		||||
}
 | 
			
		||||
							
								
								
									
										76
									
								
								vfd_fun.c
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										76
									
								
								vfd_fun.c
									
									
									
									
									
										Normal file
									
								
							@ -0,0 +1,76 @@
 | 
			
		||||
#include "vfd_fun.h"
 | 
			
		||||
#include <stdlib.h>
 | 
			
		||||
#include <string.h>
 | 
			
		||||
 | 
			
		||||
#define VFD_ANIM_DELAY 20
 | 
			
		||||
 | 
			
		||||
void vfd_animate_to(char *text, enum VFD_FUN_ANIMATIONS animation)
 | 
			
		||||
{
 | 
			
		||||
	int i,j;
 | 
			
		||||
	int done = 0;
 | 
			
		||||
	static char last[HCS12SS59T_NUMDIGITS];
 | 
			
		||||
 | 
			
		||||
	switch (animation) {
 | 
			
		||||
	case ANIMATION_RANDOM:
 | 
			
		||||
		for (int j = 0; j < 25; ++j) {
 | 
			
		||||
			HCS12SS59T_SELECT;
 | 
			
		||||
			hcs12ss59t_send_byte(HCS12SS59T_DCRAM_WR);
 | 
			
		||||
			for (i = 0; i < HCS12SS59T_NUMDIGITS; ++i) {
 | 
			
		||||
				hcs12ss59t_send_byte(hcs12ss59t_get_char(rand() % 26 + 'A'));
 | 
			
		||||
			}
 | 
			
		||||
			HCS12SS59T_DESELECT;
 | 
			
		||||
			_delay_ms(VFD_ANIM_DELAY);
 | 
			
		||||
			PORTC ^= (1 << PC5);
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		hcs12ss59t_set_text(text);
 | 
			
		||||
		break;
 | 
			
		||||
 | 
			
		||||
	case ANIMATION_FLIP:
 | 
			
		||||
		while (!done) {
 | 
			
		||||
			for (int j = 0; j < 25; ++j) {
 | 
			
		||||
				done = 1;
 | 
			
		||||
				for (i = 0; i < HCS12SS59T_NUMDIGITS; ++i) {
 | 
			
		||||
					if (last[i] > text[i]) {
 | 
			
		||||
						while (hcs12ss59t_get_char(--last[i]) == 79) {
 | 
			
		||||
							if (last[i] == '?')
 | 
			
		||||
								break;
 | 
			
		||||
						}
 | 
			
		||||
						done = 0;
 | 
			
		||||
					} else if (last[i] < text[i]) {
 | 
			
		||||
						while (hcs12ss59t_get_char(++last[i]) == 79) {
 | 
			
		||||
							if (last[i] == '?')
 | 
			
		||||
								break;
 | 
			
		||||
						}
 | 
			
		||||
						done = 0;
 | 
			
		||||
					}
 | 
			
		||||
				}
 | 
			
		||||
				hcs12ss59t_set_text(last);
 | 
			
		||||
				_delay_ms(VFD_ANIM_DELAY);
 | 
			
		||||
				PORTC ^= (1 << PC5);
 | 
			
		||||
			}
 | 
			
		||||
		}
 | 
			
		||||
		break;
 | 
			
		||||
 | 
			
		||||
	case ANIMATION_SLIDE:
 | 
			
		||||
		for (j = 0; j < HCS12SS59T_NUMDIGITS; ++j) {
 | 
			
		||||
			for (i = 1; i < HCS12SS59T_NUMDIGITS; ++i) {
 | 
			
		||||
				last[i - 1] = last[i];
 | 
			
		||||
			}
 | 
			
		||||
			last[HCS12SS59T_NUMDIGITS-1] = text[j];
 | 
			
		||||
			hcs12ss59t_set_text(last);
 | 
			
		||||
			_delay_ms(VFD_ANIM_DELAY);
 | 
			
		||||
			PORTC ^= (1 << PC5);
 | 
			
		||||
		}
 | 
			
		||||
		break;
 | 
			
		||||
 | 
			
		||||
	default:
 | 
			
		||||
		hcs12ss59t_set_text(text);
 | 
			
		||||
		PORTC ^= (1 << PC5);
 | 
			
		||||
		break;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	for (i = 0; i < HCS12SS59T_NUMDIGITS; ++i) {
 | 
			
		||||
		last[i] = text[i];
 | 
			
		||||
	}
 | 
			
		||||
}
 | 
			
		||||
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