oled initialization with ssd1306

oled-main with structure ssd1306 initialization
2022-06-17 23:04:16 +02:00
parent ebccd5c430
commit 2663ee6e2a
13 changed files with 283 additions and 2 deletions
--- a/oled/ssd1306/ssd1306.c
+++ b/oled/ssd1306/ssd1306.c
@@ -0,0 +1,46 @@
+
+#include "ssd1306.h"
+#include "connection.h"
+
+void SSD1306_Init(OLED_HandleTypeDef *hOled)
+{
+	uint8_t comPins = 0x02;
+	uint8_t contrast = 0x8F;
+
+	if ((hOled->Width == 128) && (hOled->Height == 32)) {
+		comPins = 0x02;
+		contrast = 0x0F;
+	} else if ((hOled->Width == 128) && (hOled->Height == 64)) {
+		comPins = 0x12;
+		contrast = 0xCF;
+	} else if ((hOled->Width == 96) && (hOled->Height == 16)) {
+		comPins = 0x02; // ada x12
+		contrast = 0xAF;
+	}
+
+    oled_SendCommand(hOled, SSD1306_DISPLAYOFF, 1);
+
+    const uint8_t config[] = {
+        SSD1306_SETMULTIPLEX, hOled->Height -1,
+        SSD1306_SETDISPLAYOFFSET, 0x00,
+        SSD1306_SETSTARTLINE | 0x00,
+        SSD1306_SEGREMAP | 0x01,
+        SSD1306_COMSCANDEC,
+        SSD1306_SETCOMPINS, comPins,
+        SSD1306_SETCONTRAST, contrast,
+        SSD1306_DISPLAYALLON_RESUME, 
+        SSD1306_NORMALDISPLAY,
+        SSD1306_SETDISPLAYCLOCKDIV, 0x80,
+        SSD1306_CHARGEPUMP, 0x14, 
+        SSD1306_MEMORYMODE, 0x00,
+        SSD1306_DEACTIVATE_SCROLL,
+        SSD1306_SETPRECHARGE, 0xF1,
+        SSD1306_SETVCOMDETECT, 0x40
+    };
+
+    oled_SendCommand(hOled, config, sizeof(config));
+
+    oled_SendCommand(hOled, SSD1306_DISPLAYON, 1);
+
+
+}
--- a/oled/ssd1306/ssd1306.h
+++ b/oled/ssd1306/ssd1306.h
@@ -0,0 +1,40 @@
+#pragma once
+
+#define SSD1306_MEMORYMODE 0x20          ///< See datasheet
+#define SSD1306_COLUMNADDR 0x21          ///< See datasheet
+#define SSD1306_PAGEADDR 0x22            ///< See datasheet
+#define SSD1306_SETCONTRAST 0x81         ///< See datasheet
+#define SSD1306_CHARGEPUMP 0x8D          ///< See datasheet
+#define SSD1306_SEGREMAP 0xA0            ///< See datasheet
+#define SSD1306_DISPLAYALLON_RESUME 0xA4 ///< See datasheet
+#define SSD1306_DISPLAYALLON 0xA5        ///< Not currently used
+#define SSD1306_NORMALDISPLAY 0xA6       ///< See datasheet
+#define SSD1306_INVERTDISPLAY 0xA7       ///< See datasheet
+#define SSD1306_SETMULTIPLEX 0xA8        ///< See datasheet
+#define SSD1306_DISPLAYOFF 0xAE          ///< See datasheet
+#define SSD1306_DISPLAYON 0xAF           ///< See datasheet
+#define SSD1306_COMSCANINC 0xC0          ///< Not currently used
+#define SSD1306_COMSCANDEC 0xC8          ///< See datasheet
+#define SSD1306_SETDISPLAYOFFSET 0xD3    ///< See datasheet
+#define SSD1306_SETDISPLAYCLOCKDIV 0xD5  ///< See datasheet
+#define SSD1306_SETPRECHARGE 0xD9        ///< See datasheet
+#define SSD1306_SETCOMPINS 0xDA          ///< See datasheet
+#define SSD1306_SETVCOMDETECT 0xDB       ///< See datasheet
+
+#define SSD1306_SETLOWCOLUMN 0x00  ///< Not currently used
+#define SSD1306_SETHIGHCOLUMN 0x10 ///< Not currently used
+#define SSD1306_SETSTARTLINE 0x40  ///< See datasheet
+
+#define SSD1306_EXTERNALVCC 0x01  ///< External display voltage source
+#define SSD1306_SWITCHCAPVCC 0x02 ///< Gen. display voltage from 3.3V
+
+#define SSD1306_RIGHT_HORIZONTAL_SCROLL 0x26              ///< Init rt scroll
+#define SSD1306_LEFT_HORIZONTAL_SCROLL 0x27               ///< Init left scroll
+#define SSD1306_VERTICAL_AND_RIGHT_HORIZONTAL_SCROLL 0x29 ///< Init diag scroll
+#define SSD1306_VERTICAL_AND_LEFT_HORIZONTAL_SCROLL 0x2A  ///< Init diag scroll
+#define SSD1306_DEACTIVATE_SCROLL 0x2E                    ///< Stop scroll
+#define SSD1306_ACTIVATE_SCROLL 0x2F                      ///< Start scroll
+#define SSD1306_SET_VERTICAL_SCROLL_AREA 0xA3             ///< Set scroll range
+
+
+void SSD1306_Init(OLED_HandleTypeDef *hOled);