OpenSource/floatpump-firmware
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FEATURE: Simple but almost full featured HD4478U LCD Driver over I2C with PCF8574A

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This commit is contained in:
Robin Dietzel 2022-12-09 15:47:07 +01:00
parent c9c165cf7c
commit a0110696ae
2 changed files with 15 additions and 2 deletions
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11
Middlewares/floatpump/Inc/LCD_I2C_Driver.h
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@ -15,18 +15,26 @@ namespace floatpump{
LCD_I2C_Driver(I2C_HandleTypeDef &handle, uint16_t displayAddr, uint8_t rows = 4, uint8_t cols = 20) LCD_I2C_Driver(I2C_HandleTypeDef &handle, uint16_t displayAddr, uint8_t rows = 4, uint8_t cols = 20)
: m_handle(handle), m_displayAddr(displayAddr), m_rows(rows), m_cols(cols) {}; : m_handle(handle), m_displayAddr(displayAddr), m_rows(rows), m_cols(cols) {};
// Functions sending text
void LCDSendCString(char *str); void LCDSendCString(char *str);
// Functions for configuration
void LCDInitialize(void); void LCDInitialize(void);
void LCDClearDisplay(void); void LCDClearDisplay(void);
void LCDSetBacklight(bool enabled); void LCDSetBacklight(bool enabled);
void LCDPower(bool enabled); void LCDPower(bool enabled);
void LCDCursor(bool enabled); void LCDCursor(bool enabled);
void LCDCursorBlink(bool enabled); void LCDCursorBlink(bool enabled);
// These configurations are normally not necessary to change
void LCDCursorIncDec(bool enabled); void LCDCursorIncDec(bool enabled);
void LCDDisplayShift(bool enabled); void LCDDisplayShift(bool enabled);
// Move Cursor
void LCDSetCursor(uint8_t x, uint8_t y); void LCDSetCursor(uint8_t x, uint8_t y);
private: private:
I2C_HandleTypeDef m_handle; I2C_HandleTypeDef m_handle;
uint16_t m_displayAddr; uint16_t m_displayAddr;
@ -38,8 +46,7 @@ namespace floatpump{
bool m_autoShift{}; bool m_autoShift{};
bool m_powered; bool m_powered;
uint8_t m_rows; uint8_t m_posx, m_posy;
uint8_t m_cols;
void m_lcdSendData(char data); void m_lcdSendData(char data);
void m_lcdSendCmnd(char cmnd); void m_lcdSendCmnd(char cmnd);

6
Middlewares/floatpump/Src/LCD_I2C_Driver.cpp
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@ -76,6 +76,9 @@ namespace floatpump {
m_incrementDecrement = true; m_incrementDecrement = true;
m_autoShift = false; m_autoShift = false;
m_posx = 0;
m_posy = 0;
} }
void LCD_I2C_Driver::LCDSendCString(char *str) { void LCD_I2C_Driver::LCDSendCString(char *str) {
@ -144,6 +147,9 @@ namespace floatpump {
addr = startat + x; addr = startat + x;
m_lcdSendCmnd(( 0x80 | addr)); m_lcdSendCmnd(( 0x80 | addr));
HAL_Delay(1); HAL_Delay(1);
m_posx = x;
m_posy = y;
} }
} // floatpump } // floatpump