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MMDVM
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Simplify the OLED text creation code.

This commit is contained in:
Jonathan Naylor 2021-04-11 21:49:20 +01:00
parent 4f3e6935d2
commit 639caa03ee
4 changed files with 35 additions and 44 deletions
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3
I2C3.cpp
View File

@ -77,6 +77,9 @@ void CI2C3::init()
uint8_t CI2C3::write(uint8_t addr, const uint8_t* data, uint16_t length)
{
DEBUG2("OLED Data", addr);
DEBUG_DUMP(data, length);
// Wait for the I2C transmitter to become free
if (waitISRFlagsSet(I2C_ISR_BUSY))
return 6U;

70
I2COLED.cpp
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@ -29,7 +29,7 @@ const uint8_t OLED_ADDRESS = 0x78U;
const uint8_t OLED_WIDTH = 64U;
const uint8_t OLED_HEIGHT = 32U;
const uint16_t OLED_BUFFER_SIZE = OLED_HEIGHT * OLED_WIDTH / 8U;
const uint16_t OLED_BUFFER_SIZE = (OLED_HEIGHT * OLED_WIDTH) / 8U;
const uint8_t SSD_Command_Mode = 0x00U; /* C0 and DC bit are 0 */
const uint8_t SSD_Data_Mode = 0x40U; /* C0 bit is 0 and DC bit is 1 */
@ -41,7 +41,7 @@ const uint8_t SSD1306_Set_Start_Line = 0x40U;
const uint8_t CHAR_HEIGHT = 5U;
const uint8_t CHAR_WIDTH = 7U;
// standard ascii 5x7 font
// Standard ascii 5x7 font
const uint8_t FONT[] = {
0x00U, 0x00U, 0x00U, 0x00U, 0x00U,
0x3EU, 0x5BU, 0x4FU, 0x5BU, 0x3EU,
@ -318,38 +318,38 @@ void CI2COLED::init()
m_i2c.init();
// Initialise the VG-6432TSWEG02 OLED display
sendCommand(0xAEU); /*display off*/
sendCommand(0xAEU); /* Display off */
sendCommand(0x00U); /*set lower column address*/
sendCommand(0x12U); /*set higher column address*/
sendCommand(0x00U); /* Set lower column address */
sendCommand(0x12U); /* Set higher column address */
sendCommand(0x00U); /*set display start line*/
sendCommand(0x00U); /* Set display start line */
sendCommand(0xB0U); /*set page address*/
sendCommand(0xB0U); /* Set page address */
sendCommand(0x81U, 0x41U); /*contract control*/
sendCommand(0x81U, 0x41U); /* Contract control */
sendCommand(0xA1U); /*set segment remap*/
sendCommand(0xA1U); /* Set segment remap */
sendCommand(0xA6U); /*normal / reverse*/
sendCommand(0xA6U); /* Normal/reverse */
sendCommand(0xA8U, 0x1FU); /*multiplex ratio*/
sendCommand(0xA8U, 0x1FU); /* Multiplex ratio */
sendCommand(0xC8U); /* Com scan direction */
sendCommand(0xD3U, 0x00U); /*set display offset*/
sendCommand(0xD3U, 0x00U); /* Set display offset */
sendCommand(0xD5U, 0x80U); /*set osc division*/
sendCommand(0xD5U, 0x80U); /* Set osc division */
sendCommand(0xD9U, 0x1FU); /*set pre-charge period*/
sendCommand(0xD9U, 0x1FU); /* Set pre-charge period */
sendCommand(0xDAU, 0x12U); /*set COM pins*/
sendCommand(0xDAU, 0x12U); /* Set COM pins */
sendCommand(0xDBU, 0x40U); /*set vcomh*/
sendCommand(0xDBU, 0x40U); /* Set vcomh */
sendCommand(0x8DU, 0x10U); /*set charge pump enable*/
sendCommand(0x8DU, 0x10U); /* Set charge pump enable*/
sendCommand(0xAFU); /*display ON*/
sendCommand(0xAFU); /* Display on */
}
void CI2COLED::setMode(int state)
@ -395,19 +395,6 @@ void CI2COLED::setMode(int state)
display();
}
void CI2COLED::sendCommand(uint8_t c0, uint8_t c1, uint8_t c2)
{
uint8_t buff[4U];
buff[0U] = SSD_Command_Mode;
buff[1U] = c0;
buff[2U] = c1;
buff[3U] = c2;
// Write Data on I2C
m_i2c.write(OLED_ADDRESS, buff, 4U);
}
void CI2COLED::sendCommand(uint8_t c0, uint8_t c1)
{
uint8_t buff[3U];
@ -433,13 +420,13 @@ void CI2COLED::sendCommand(uint8_t c)
void CI2COLED::sendData(const uint8_t* data, uint16_t length)
{
uint8_t buff[1U];
uint8_t buff[20U];
buff[0U] = SSD_Data_Mode;
::memcpy(buff + 1U, data, length * sizeof(uint8_t));
// Write Data on I2C
m_i2c.write(OLED_ADDRESS, buff, 1U);
m_i2c.write(OLED_ADDRESS, data, length);
m_i2c.write(OLED_ADDRESS, buff, length + 1U);
}
void CI2COLED::clear()
@ -471,12 +458,12 @@ void CI2COLED::write(uint8_t x, uint8_t y, char c, uint8_t size)
for (uint8_t i = 0U; i < 6U; i++) {
uint8_t line;
if (i == 5U)
line = 0x00U;
line = 0U;
else
line = FONT[(c * 5) + i];
line = FONT[(c * 5U) + i];
for (uint8_t j = 0U; j < 8U; j++) {
if (line & 0x1) {
if (line & 0x1U) {
if (size == 1U) // default size
drawPixel(x + i, y + j);
else // big size
@ -507,12 +494,11 @@ void CI2COLED::drawPixel(uint8_t x, uint8_t y)
void CI2COLED::display()
{
sendCommand(SSD1306_Set_Lower_Column_Start_Address | 0x0); // low col = 0
sendCommand(SSD1306_Set_Higher_Column_Start_Address | 0x0); // hi col = 0
sendCommand(SSD1306_Set_Start_Line | 0x0); // line #0
sendCommand(SSD1306_Set_Lower_Column_Start_Address | 0x00U); // Low col = 0
sendCommand(SSD1306_Set_Higher_Column_Start_Address | 0x00U); // High col = 0
sendCommand(SSD1306_Set_Start_Line | 0x00U); // Line #0
// loop trough all OLED buffer and
// send a bunch of 16 data byte in one xmission
// loop trough all OLED buffer and send a bunch of 16 data byte in one transmission
for (uint16_t i = 0U; i < OLED_BUFFER_SIZE; i += 16U)
sendData(m_oledBuffer + i, 16U);
}

1
I2COLED.h
View File

@ -46,7 +46,6 @@ private:
void sendCommand(uint8_t c);
void sendCommand(uint8_t c0, uint8_t c1);
void sendCommand(uint8_t c0, uint8_t c1, uint8_t c2);
void sendData(const uint8_t* c, uint16_t length);
};

3
SerialPort.cpp
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@ -2005,6 +2005,9 @@ void CSerialPort::writeDebug(const char* text, int16_t n1, int16_t n2, int16_t n
void CSerialPort::writeDebugDump(const uint8_t* data, uint16_t length)
{
if (length > 500U)
length = 500U;
uint8_t reply[512U];
reply[0U] = MMDVM_FRAME_START;