Assuming the library you are using is the one found at
https://forum.arduino.cc/index.php?topic=242880.0 they are explicitly using register access to talk to some of the pins. This will work fine for the ATMega Arduinos but won't work for any other processor...
Note that I don't have either that display or an Artemis board, so I can't test any of this, but try using this version of SH1106_SPI.cpp. I just replaced direct register access to PORTB with the appropriate digitalWrite() calls. It will be a bit slower but at least should get you further.
/mike
Code: Select all#include "SH1106_SPI.h"
#include <SPI.h>
SH1106_SPI::SH1106_SPI()
{
}
#define PIN_DC D8
#define PIN_RESET D9
#define PIN_CS D10
void SH1106_SPI::begin(bool invert, bool fastSpi, uint8_t contrast, uint8_t Vpp)
{
pinMode(PIN_DC, OUTPUT);
pinMode(PIN_RESET, OUTPUT);
pinMode(PIN_DC, OUTPUT);
//SH1106_PORT |= (PIN_DC | PIN_RESET | PIN_CS);
//SH1106_DDR |= (PIN_DC | PIN_RESET | PIN_CS);
SPI.begin();
if (fastSpi)
SPI.setClockDivider(SPI_CLOCK_DIV2);
// LCD init section:
uint8_t invertSetting = invert ? 0xA7 : 0xA6;
Vpp &= 0x03;
// Must reset LCD first!
digitalWrite(PIN_RESET, LOW);
//SH1106_PORT &= ~PIN_RESET;
delay(1);
digitalWrite(PIN_RESET, HIGH);
//SH1106_PORT |= PIN_RESET;
this->writeLcd(SH1106_COMMAND, 0xAE); /*display off*/
this->writeLcd(SH1106_COMMAND, 0x02); /*set lower column address*/
this->writeLcd(SH1106_COMMAND, 0x10); /*set higher column address*/
this->writeLcd(SH1106_COMMAND, 0x40); /*set display start line*/
this->writeLcd(SH1106_COMMAND, 0xB0); /*set page address*/
this->writeLcd(SH1106_COMMAND, 0x81); /*contract control*/
this->writeLcd(SH1106_COMMAND, contrast); /*128*/
this->writeLcd(SH1106_COMMAND, 0xA1); /*set segment remap*/
this->writeLcd(SH1106_COMMAND, invertSetting); /*normal / reverse*/
this->writeLcd(SH1106_COMMAND, 0xA8); /*multiplex ratio*/
this->writeLcd(SH1106_COMMAND, 0x3F); /*duty = 1/32*/
this->writeLcd(SH1106_COMMAND, 0xAD); /*set charge pump enable*/
this->writeLcd(SH1106_COMMAND, 0x8B); /*external VCC */
this->writeLcd(SH1106_COMMAND, 0x30 | Vpp); /*0X30---0X33 set VPP 9V liangdu!!!!*/
this->writeLcd(SH1106_COMMAND, 0xC8); /*Com scan direction*/
this->writeLcd(SH1106_COMMAND, 0xD3); /*set display offset*/
this->writeLcd(SH1106_COMMAND, 0x00); /* 0x20 */
this->writeLcd(SH1106_COMMAND, 0xD5); /*set osc division*/
this->writeLcd(SH1106_COMMAND, 0x80);
this->writeLcd(SH1106_COMMAND, 0xD9); /*set pre-charge period*/
this->writeLcd(SH1106_COMMAND, 0x1F); /*0x22*/
this->writeLcd(SH1106_COMMAND, 0xDA); /*set COM pins*/
this->writeLcd(SH1106_COMMAND, 0x12);
this->writeLcd(SH1106_COMMAND, 0xDB); /*set vcomh*/
this->writeLcd(SH1106_COMMAND, 0x40);
this->writeLcd(SH1106_COMMAND, 0xAF); /*display ON*/
this->clear();
}
size_t SH1106_SPI::write(uint8_t data)
{
// Non-ASCII characters are not supported.
if (data < 0x20 || data > 0x7F) return 0;
if (this->m_Column >= 123)
this->advanceXY(SH1106_X_PIXELS - this->m_Column);
uint8_t buf[6];
memcpy_P(buf, ASCII[data - 0x20], 5);
buf[5] = 0x00;
this->writeLcd(SH1106_DATA, buf, 6);
this->advanceXY(6);
return 1;
}
void SH1106_SPI::clear()
{
for (uint8_t j = SH1106_ROWS; j > 0; j--)
{
this->gotoXY(0, j-1);
for (uint8_t i = SH1106_X_PIXELS; i > 0; i--)
this->writeLcd(SH1106_DATA, 0x00);
}
this->gotoXY(0, 0);
}
uint8_t SH1106_SPI::gotoXY(uint8_t x, uint8_t y)
{
if (x >= SH1106_X_PIXELS || y >= SH1106_ROWS) return SH1106_ERROR;
this->m_Column = x;
this->m_Line = y;
x = x + 2; // Panel is 128 pixels wide, controller RAM has space for 132,
// it's centered so add an offset to ram address.
this->writeLcd(SH1106_COMMAND, 0xB0 + y); // Set row
this->writeLcd(SH1106_COMMAND, x & 0xF); // Set lower column address
this->writeLcd(SH1106_COMMAND, 0x10 | (x >> 4));// Set higher column address
return SH1106_SUCCESS;
}
uint8_t SH1106_SPI::writeBitmap(const uint8_t *bitmap, uint8_t x, uint8_t y, uint8_t width, uint8_t height)
{
if (this->gotoXY(x, y) == SH1106_ERROR) return SH1106_ERROR;
const uint8_t *maxY = bitmap + height * width;
for (const uint8_t *y = bitmap; y < maxY; y += width)
{
this->writeLcd(SH1106_DATA, y , width);
this->gotoXY(this->m_Column, this->m_Line + 1);
}
this->advanceXY(width);
return SH1106_SUCCESS;
}
void SH1106_SPI::advanceXY(uint8_t columns)
{
this->m_Column += columns;
if (this->m_Column >= SH1106_X_PIXELS)
{
this->m_Column %= SH1106_X_PIXELS;
this->m_Line++;
this->m_Line %= SH1106_ROWS;
this->gotoXY(this->m_Column, this->m_Line);
}
}
void SH1106_SPI::writeLcd(uint8_t dataOrCommand, const uint8_t *data, uint16_t count)
{
//SH1106_PORT = (SH1106_PORT & ~PINS_CS_DC) | dataOrCommand;
digitalWrite(PIN_CS, LOW);
digitalWrite(PIN_DC, dataOrCommand);
for (uint16_t i = count; i > 0; i--)
{
SPI.transfer(data[count-i]);
//SPDR = *data++;
//while (!(SPSR & _BV(SPIF)));
}
// SH1106_PORT |= PIN_CS;
digitalWrite(PIN_CS, HIGH);
}
void SH1106_SPI::writeLcd(uint8_t dataOrCommand, uint8_t data)
{
digitalWrite(PIN_CS, LOW);
digitalWrite(PIN_DC, dataOrCommand);
//SH1106_PORT = (SH1106_PORT & ~PINS_CS_DC) | dataOrCommand;
SPI.transfer(data);
//SPDR = data;
//while (!(SPSR & _BV(SPIF)));
digitalWrite(PIN_CS, HIGH);
//SH1106_PORT |= PIN_CS;
}
