增加屏幕驱动

2026-07-30 19:20:34 +08:00
parent 2306a0272c
commit cef702dba0
6 changed files with 195 additions and 8 deletions
@@ -0,0 +1,77 @@
+#include "oled.h"
+#include "iic.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+
+void oled_cmd(unsigned char IIC_Command)
+{
+    unsigned char buf[2] = {0x00, IIC_Command};
+    iic_send_bytes(OLED_ADDRESS, buf, 2);
+}
+
+void oled_dat(unsigned char IIC_Data)
+{
+    unsigned char buf[2] = {0x40, IIC_Data};
+    iic_send_bytes(OLED_ADDRESS, buf, 2);
+}
+
+void oled_set_pos(unsigned char x, unsigned char y)
+{
+    x += OLED_COL_OFFSET;
+    oled_cmd(0xb0 + 7 - y);
+    oled_cmd(((x & 0xf0) >> 4) | 0x10);
+    oled_cmd((x & 0x0f) | 0x00);
+}
+
+void oled_init_dram(char a)
+{
+    for (unsigned char y = 0; y < Y_WIDTH_; y++) {
+        oled_set_pos(0, y);
+        for (unsigned char x = 0; x < X_WIDTH; x++) {
+            oled_dat(a);
+        }
+    }
+}
+
+void oled_set_lum(unsigned char a)
+{
+    oled_cmd(0x81);
+    oled_cmd((unsigned char)(a * 255 / 100));
+}
+
+void oled_init(void)
+{
+    vTaskDelay(pdMS_TO_TICKS(200));
+
+    oled_cmd(0xAE);
+    oled_cmd(0xD5);
+    oled_cmd(0x80);
+    oled_cmd(0xA8);
+    oled_cmd(0x3F);
+    oled_cmd(0xD3);
+    oled_cmd(0x00);
+    oled_cmd(0x40);
+#if (OLED_CONTROLLER == OLED_CTRL_SH1106)
+    oled_cmd(0xAD);
+    oled_cmd(0x8B);
+#elif (OLED_CONTROLLER == OLED_CTRL_ST7315)
+    oled_cmd(0x8D);
+    oled_cmd(0x14);
+#endif
+    oled_cmd(0x20);
+    oled_cmd(0x10);
+    oled_cmd(0xA1);
+    oled_cmd(0xC0);
+    oled_cmd(0xD9);
+    oled_cmd(0xf1);
+    oled_cmd(0xDB);
+    oled_cmd(0x30);
+    oled_cmd(0xA4);
+    oled_cmd(0xA6);
+    oled_cmd(0xAF);
+
+    oled_cmd(0x81);
+    oled_cmd(0xff);
+
+    oled_init_dram(0);
+}