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move flipdot control code to class

This commit is contained in:
interfisch 2023-02-07 17:51:02 +01:00
parent 1aef191b21
commit fdd014012f
3 changed files with 303 additions and 3 deletions
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78
flipcontrol_esp32/include/flipdot.h Normal file
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@ -0,0 +1,78 @@
#ifndef FLIPDOT_H
#define FLIPDOT_H
#include <Arduino.h>
#define CHECK_BIT(var,pos) ((var) & (1<<(pos)))
/*
D7 - Ser (data)
D5 - clock
D1 - _OE
D2 - latch
D3 - _clear
*/
//Pins connected to Shift registers on own controller board
#define PIN_DATA 13
#define PIN_CLK 14
#define PIN_OE 27 //active low
#define PIN_LATCH 26
//Pins connected to stuff on annax driver board
#define PIN_DATA_DRVBRD 33
#define PIN_CLK_DRVBRD 32
//#define PIN_CLEAR 25 //active low
#define PIN_DRIVE 25 //enables 12v to panels via transistor
#define PIN_CLEAR 12 //connects CLEAR Pin from Annax board to GND (clears column)
#define NUMPANELS 1
#define COLUMNBYTES 7 //4 columns per byte. one panel has 25 columns
//### Timings ###
#define MICROS_DRIVEDOTSET 1500 //time dot will be powered for flipping to bright side. in microseconds. 700 sometimes flips too late
#define MICROS_DRIVEDOTCLEAR 20000 //time dot will be powered for flipping to black. in microseconds. always flips at least a whole column. 10000 is too short
#define MICROS_SHIFTDELAY 50/2 //shift register clock (100/2 = 1/(100/1000000) Hz) .at 25/2 nothing is flipping!
#define MICROS_SHIFT_LATCH 100 //latch high time for 595 (row drivers)
class Flipdot
{
private:
int blafoo;
public:
Flipdot();
void init();
void shiftOutSlow(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val);
bool clearSelectedColumn();
bool setSelectedDot();
void selectColumnClear(uint8_t selcolumn);
void selectColumnSet(uint8_t selcolumn);
void selectColumn(uint8_t selcolumn, bool clear);
bool HBridgeOK();
void shiftData();
void resetColumns();
uint16_t row; //controls shift registers on own controller pcb
uint8_t col[COLUMNBYTES]; //column drivers and shift registers on annax pcb
};
#endif

148
flipcontrol_esp32/src/flipdot.cpp Normal file
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@ -0,0 +1,148 @@
#include "flipdot.h"
Flipdot::Flipdot()
{
}
void Flipdot::init()
{
pinMode(PIN_DATA, OUTPUT);
pinMode(PIN_CLK, OUTPUT);
pinMode(PIN_OE, OUTPUT);
pinMode(PIN_LATCH, OUTPUT);
pinMode(PIN_CLEAR, OUTPUT);
pinMode(PIN_DRIVE, OUTPUT);
pinMode(PIN_DATA_DRVBRD, OUTPUT);
pinMode(PIN_CLK_DRVBRD, OUTPUT);
digitalWrite(PIN_OE, HIGH); //Active Low
digitalWrite(PIN_LATCH, LOW);
digitalWrite(PIN_DRIVE, LOW);
}
void Flipdot::shiftOutSlow(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val)
{
uint8_t i;
for (i = 0; i < 8; i++) {
if (bitOrder == LSBFIRST)
digitalWrite(dataPin, !!(val & (1 << i)));
else
digitalWrite(dataPin, !!(val & (1 << (7 - i))));
delayMicroseconds(MICROS_SHIFTDELAY);
digitalWrite(clockPin, HIGH);
delayMicroseconds(MICROS_SHIFTDELAY);
digitalWrite(clockPin, LOW);
}
}
void Flipdot::selectColumnClear(uint8_t selcolumn) {
selectColumn(selcolumn, true);
}
void Flipdot::selectColumnSet(uint8_t selcolumn) {
selectColumn(selcolumn, false);
}
void Flipdot::selectColumn(uint8_t selcolumn, bool clear) {
uint8_t sc_bit=3-(selcolumn%4); //each two shift registers control four columns
uint8_t sc_byte=selcolumn/4;
resetColumns();
col[sc_byte]=pow(2, (sc_bit*2+clear)); // possible numbers for clear=false: 1,4,16,64
}
bool Flipdot::clearSelectedColumn() {
//Clear Columns
if (row!=0) {
return 0; //error. row is selected (short circuit!)
}
for (uint8_t cc=0;cc<7;cc++) {
//Serial.print("checking cc="); Serial.println(cc);
for (uint8_t i=0;i<8;i+=2) {
if (CHECK_BIT(col[cc],i)) {
Serial.print("Error on bit ");
Serial.print(i); Serial.print(" col="); Serial.println(cc);
return 0; //a column is set to ground (should not be set for clear column)
}
}
}
digitalWrite(PIN_DRIVE, HIGH);
digitalWrite(PIN_CLEAR, HIGH);
delayMicroseconds(MICROS_DRIVEDOTCLEAR);
digitalWrite(PIN_CLEAR, LOW);
digitalWrite(PIN_DRIVE, LOW);
return 1;
}
bool Flipdot::setSelectedDot() {
for (uint8_t cc=0;cc<7;cc++) {
//Serial.print("checking cc="); Serial.println(cc);
for (uint8_t i=1;i<8;i+=2) {
if (CHECK_BIT(col[cc],i)) {
Serial.print("Error on bit ");
Serial.print(i); Serial.print(" col="); Serial.println(cc);
return 0; //a column is set to ground (should not be set for clear column)
}
}
}
if (!HBridgeOK()) {
return 0;
}
digitalWrite(PIN_OE, LOW); //Active Low
digitalWrite(PIN_DRIVE, HIGH);
delayMicroseconds(MICROS_DRIVEDOTSET); //Drive Dot
digitalWrite(PIN_OE, HIGH); //Active Low
digitalWrite(PIN_DRIVE, LOW);
return 1;
}
bool Flipdot::HBridgeOK() {
for (uint8_t cc=0;cc<7;cc++) {
//Serial.print("checking cc="); Serial.println(cc);
for (uint8_t i=0;i<8;i+=2) {
if (CHECK_BIT(col[cc],i) && CHECK_BIT(col[cc],i+1)) {
Serial.print("Short circuit on bit ");
Serial.print(i); Serial.print(" col="); Serial.println(cc);
return 0; //a column is set to ground (should not be set for clear column)
}
}
}
return 1;
}
void Flipdot::shiftData() { //send out all data to shift registers
//select Rows via shift registers on own controller board
shiftOutSlow(PIN_DATA, PIN_CLK, LSBFIRST, row&0xff); //lower byte
shiftOutSlow(PIN_DATA, PIN_CLK, LSBFIRST, row>>8); //LSBFIRST= LSB is QH, bit 8 is QA. //upper byte
digitalWrite(PIN_LATCH, HIGH);
delayMicroseconds(MICROS_SHIFT_LATCH);
digitalWrite(PIN_LATCH, LOW);
//Select Columns via Shift registers
for (uint8_t i=0;i<7;i++) {
shiftOutSlow(PIN_DATA_DRVBRD, PIN_CLK_DRVBRD, LSBFIRST, col[6-i]);
}
}
void Flipdot::resetColumns() {
for (uint8_t i=0;i<7;i++) {
col[i]=0;
}
}

80
flipcontrol_esp32/src/main.cpp
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@ -10,7 +10,7 @@ Flipdot flipdot;
unsigned long loopmillis=0;
unsigned long last_update=0;
#define UPDATE_INTERVAL 10
#define UPDATE_INTERVAL 5
void setup() {
flipdot.init();
@ -20,15 +20,23 @@ void setup() {
int countz=0;
void loop_testDots();
void loop_drawClearTest();
void loop() {
loopmillis = millis();
//loop_drawClearTest();
loop_testDots();
}
void loop_testDots() {
static bool init=false;
if (!init) {
delay(2000);
flipdot.row=0;
Serial.println("Clearing Display");
for (int l=0;l<25;l++) {
@ -42,7 +50,73 @@ void loop() {
Serial.println("Cleared");
}
delay(10);
delay(50);
}
init=true;
Serial.println("Finished Clearing");
delay(1000);
}
Serial.println("Clearing");
flipdot.row=0;
flipdot.selectColumnClear(23);
flipdot.shiftData();
if (!flipdot.clearSelectedColumn()) {
Serial.println("Error clearing column!");
}
delay(50);
flipdot.row=0;
flipdot.selectColumnClear(24);
flipdot.shiftData();
if (!flipdot.clearSelectedColumn()) {
Serial.println("Error clearing column!");
}
delay(100);
Serial.println("Setting");
for (int i=23;i<25;i++) {
flipdot.selectColumnSet(i); //lower column number is on the left
flipdot.row=0;
flipdot.row+=pow(2, 4);//low significant bits are lower rows (when connector at top)
flipdot.row+=pow(2, 5);//low significant bits are lower rows (when connector at top)
flipdot.shiftData();
flipdot.setSelectedDot();
delay(50);
}
delay(100);
countz++;
countz%=14;
//init=false;
}
void loop_drawClearTest() {
static bool init=false;
if (!init) {
flipdot.row=0;
Serial.println("Clearing Display");
for (int l=0;l<25;l++) {
flipdot.selectColumnClear(l%25);
flipdot.shiftData();
if (!flipdot.clearSelectedColumn()) {
Serial.println("Error clearing column!");
}else{
Serial.println("Cleared");
}
delay(20);
}
init=true;
delay(1000);