[dorkbotpdx-blabber] 5x5 matrix code help
Donald Delmar Davis
ddelmardavis at gmail.com
Fri Mar 6 13:28:25 EST 2009
Dorkboard=mega168
On Mar 6, 2009, at 8:50 AM, Greg Grunest wrote:
> Hey,
> What board / chip are you using?
>
> Also, what are the exact errors?
>
> I tried your program and if I attempt to compile for an Arduino with
> an Atmel 328, I get errors in line 51 & 52 of FrequencyTimer2.cpp.
> I know why this is happening but I don’t know how to fix it
> “elegantly”. If this is your problem and you want my “kludge”, I’ll
> send it to you.
>
> Original code from FrequencyTimer2.cpp
>
> 47: #if defined(__AVR_ATmega168__)
> 48: if ( func) TIMSK2 |= _BV(OCIE2A);
> 49: else TIMSK2 &= ~_BV(OCIE2A);
> 50: #else
> 51: if ( func) TIMSK |= _BV(OCIE2);
> 52: else TIMSK &= ~_BV(OCIE2);
> 53: #endif
>
> Or if another list reader has a good understanding of the inner
> workings of the Arduino environment and cpp, maybe they could look
> at it and spare me the shame of distributing a kludge. ;)
>
>
>
> Then, I tried to compile if for an Arduino with a 168 and I get
> errors in stdlib.h line 111. I looked at the line of code in
> stdlib.h and I can’t see anything wrong with it. Hmm…
>
> Stdlib.h:111
> /** The abs() function computes the absolute value of the integer \c
> i.
> \note The abs() and labs() functions are builtins of gcc.
> */
> extern int abs(int __i) __ATTR_CONST__;
>
>
> Then again, maybe you’re getting a completely different set of
> errors. It’s entirely possible. So knowing what error you’re
> getting and where would really help.
>
> - Greg
>
>
> From: dorkbotpdx-blabber-bounces at dorkbot.org [mailto:dorkbotpdx-blabber-bounces at dorkbot.org
> ] On Behalf Of m sanders
> Sent: Thursday, March 05, 2009 9:40 PM
> To: dorkbotpdx-blabber at dorkbot.org
> Subject: [dorkbotpdx-blabber] 5x5 matrix code help
>
> Hey all, so i am new to the whole cult thing and am needing some
> help with some code i am tryin to adapt from the arduino site to
> make this 5x5 matrix work directly off dork board problem is that
> there are errors and im not savvy enough with programming to work it
> out, more of a production kinda guy not so much a software kinda
> guy. anyway i digress and will thank you all in advance for any help
> you might be about to give me.
>
> michael
>
> here is code. also as a side not you can seei jusr shortened the
> defined space and changed row and column things to reflec the size
> of my matrix. there is a part in the code that speaks of pin 11 and
> i am not using it so maybe thats one problem but, the error messages
> have no mention of this, and i have installed all libraries in the
> correct locations and everything. or anyone have some 5x5 code layin
> around? thanks again!
>
> /*
> * Show messages on an 5x5 led matrix,
> * scrolling from right to left.
> *
> * Uses FrequencyTimer2 library to
> * constantly run an interrupt routine
> * at a specified frequency. This
> * refreshes the display without the
> * main loop having to do anything.
> *
> */
>
> #include <FrequencyTimer2.h>
>
> #define SPACE { \
> {0, 0, 0, 0, 0}, \
> {0, 0, 0, 0, 0}, \
> {0, 0, 0, 0, 0}, \
> {0, 0, 0, 0, 0}, \
> {0, 0, 0, 0, 0}, \
>
> }
>
> #define H { \
> {1, 0, 0, 0, 1}, \
> {1, 0, 0, 0, 1}, \
> {1, 1, 1, 1, 1}, \
> {1, 0, 0, 0, 1}, \
> {1, 0, 0, 0, 1}, \
>
> }
>
> #define E { \
> {1, 1, 1, 1, 1}, \
> {1, 0, 0, 0, 0}, \
> {1, 1, 1, 0, 0}, \
> {1, 0, 0, 0, 0}, \
> {1, 1, 1, 1, 1}, \
>
> }
>
> #define L { \
> {1, 0, 0, 0, 0}, \
> {1, 0, 0, 0, 0}, \
> {1, 0, 0, 0, 0}, \
> {1, 0, 0, 0, 0}, \
> {1, 1, 1, 1, 1}, \
>
> }
>
> #define O { \
> {0, 1, 1, 1, 0}, \
> {1, 0, 0, 0, 1}, \
> {1, 0, 0, 0, 1}, \
> {1, 0, 0, 0, 1}, \
> {0, 1, 1, 1, 0}, \
>
> }
>
> byte col = 0;
> byte leds[5][5];
>
> // pin[xx] on led matrix connected to nn on Arduino (-1 is dummy to
> make array start at pos 1)
> int pins[11]= {-1, 4, 3, 14, 17, 13, 12, 10, 9, 8, 6};
>
> // col[xx] of leds = pin yy on led matrix
> int cols[5] = {pins[13], pins[3], pins[4], pins[10], pins[06]};
>
> // row[xx] of leds = pin yy on led matrix
> int rows[5] = {pins[9], pins[14], pins[8], pins[12], pins[1]};
>
> const int numPatterns = 6;
> byte patterns[numPatterns][5][5] = {
> H,E,L,L,O,SPACE
> };
>
> int pattern = 0;
>
> void setup() {
> // sets the pins as output
> for (int i = 1; i <= 10; i++) {
> pinMode(pins[i], OUTPUT);
> }
>
> // set up cols and rows
> for (int i = 1; i <= 5; i++) {
> digitalWrite(cols[i - 1], LOW);
> }
>
> for (int i = 1; i <= 5; i++) {
> digitalWrite(rows[i - 1], LOW);
> }
>
> clearLeds();
>
> // Turn off toggling of pin 11
> FrequencyTimer2::disable();
> // Set refresh rate (interrupt timeout period)
> FrequencyTimer2::setPeriod(2000);
> // Set interrupt routine to be called
> FrequencyTimer2::setOnOverflow(display);
>
> setPattern(pattern);
> }
>
> void loop() {
> pattern = ++pattern % numPatterns;
> slidePattern(pattern, 60);
> }
>
> void clearLeds() {
> // Clear display array
> for (int i = 0; i < 5; i++) {
> for (int j = 0; j < 5; j++) {
> leds[i][j] = 0;
> }
> }
> }
>
> void setPattern(int pattern) {
> for (int i = 0; i < 5; i++) {
> for (int j = 0; j < 5; j++) {
> leds[i][j] = patterns[pattern][i][j];
> }
> }
> }
>
> void slidePattern(int pattern, int del) {
> for (int l = 0; l < 5; l++) {
> for (int i = 0; i < 4; i++) {
> for (int j = 0; j < 5; j++) {
> leds[j][i] = leds[j][i+1];
> }
> }
> for (int j = 0; j < 5; j++) {
> leds[j][4] = patterns[pattern][j][0 + l];
> }
> delay(del);
> }
> }
>
> // Interrupt routine
> void display() {
> digitalWrite(cols[col], LOW); // Turn whole previous column off
> col++;
> if (col == 5) {
> col = 0;
> }
> for (int row = 0; row < 5; row++) {
> if (leds[col][4 - row] == 1) {
> digitalWrite(rows[row], LOW); // Turn on this led
> }
> else {
> digitalWrite(rows[row], HIGH); // Turn off this led
> }
> }
> digitalWrite(cols[col], HIGH); // Turn whole column on at once
> (for equal lighting times)
> delayMicroseconds(900); // Delay so that on times are longer than
> off time = brighter leds
> }
>
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