Skip to content

Commit

Permalink
board: add ssd1306 driver for xr871evb
Browse files Browse the repository at this point in the history
  • Loading branch information
@Aaron-Ye
Aaron-Ye committed Feb 27, 2018
1 parent cd92a5f commit 8844133
Show file tree
Hide file tree
Showing 7 changed files with 423 additions and 5 deletions.
6 changes: 6 additions & 0 deletions board/xr871evb/board.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -256,5 +256,11 @@ void board_init(void)
printf("xr871evb board init...\n");
dkey_init();
adc_key_init();

ssd1306_init();
oled_clear_screen();
oled_draw_string_1608(0, 0, "Hello World!!");
oled_draw_string_1608(0, 2, "123456789");

return;
}
199 changes: 199 additions & 0 deletions board/xr871evb/oled.c
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,199 @@
/*
* Copyright (C) 2017 YunOS Project. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

#include "hal/soc/soc.h"
#include <aos/kernel.h>
#include <aos/aos.h>
#include "ssd1306.h"

#define OLED_MAX_TRANSFER_DATA_LEN 128

const unsigned char ascii_1608[95][16] = {
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*" ",0*/
{0x00,0x00,0x00,0x1F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xCC,0x0C,0x00,0x00,0x00},/*"!",1*/
{0x00,0x08,0x30,0x60,0x08,0x30,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*""",2*/
{0x02,0x03,0x1E,0x02,0x03,0x1E,0x02,0x00,0x20,0xFC,0x20,0x20,0xFC,0x20,0x20,0x00},/*"#",3*/
{0x00,0x0E,0x11,0x3F,0x10,0x0C,0x00,0x00,0x00,0x18,0x04,0xFF,0x84,0x78,0x00,0x00},/*"$",4*/
{0x0F,0x10,0x0F,0x00,0x07,0x18,0x00,0x00,0x00,0x84,0x38,0xC0,0x78,0x84,0x78,0x00},/*"%",5*/
{0x00,0x0F,0x10,0x11,0x0E,0x00,0x00,0x00,0x78,0x84,0xC4,0x24,0x98,0xE4,0x84,0x08},/*"&",6*/
{0x08,0x68,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"'",7*/
{0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00},/*"(",8*/
{0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00},/*")",9*/
{0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00},/*"*",10*/
{0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0xF8,0x80,0x80,0x80,0x00},/*"+",11*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x0D,0x0E,0x00,0x00,0x00,0x00,0x00},/*",",12*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80},/*"-",13*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0C,0x0C,0x00,0x00,0x00,0x00,0x00},/*".",14*/
{0x00,0x00,0x00,0x00,0x01,0x06,0x18,0x20,0x00,0x06,0x18,0x60,0x80,0x00,0x00,0x00},/*"/",15*/
{0x00,0x07,0x08,0x10,0x10,0x08,0x07,0x00,0x00,0xF0,0x08,0x04,0x04,0x08,0xF0,0x00},/*"0",16*/
{0x00,0x08,0x08,0x1F,0x00,0x00,0x00,0x00,0x00,0x04,0x04,0xFC,0x04,0x04,0x00,0x00},/*"1",17*/
{0x00,0x0E,0x10,0x10,0x10,0x11,0x0E,0x00,0x00,0x0C,0x14,0x24,0x44,0x84,0x0C,0x00},/*"2",18*/
{0x00,0x0C,0x10,0x11,0x11,0x12,0x0C,0x00,0x00,0x18,0x04,0x04,0x04,0x88,0x70,0x00},/*"3",19*/
{0x00,0x00,0x03,0x04,0x08,0x1F,0x00,0x00,0x00,0xE0,0x20,0x24,0x24,0xFC,0x24,0x00},/*"4",20*/
{0x00,0x1F,0x10,0x11,0x11,0x10,0x10,0x00,0x00,0x98,0x84,0x04,0x04,0x88,0x70,0x00},/*"5",21*/
{0x00,0x07,0x08,0x11,0x11,0x18,0x00,0x00,0x00,0xF0,0x88,0x04,0x04,0x88,0x70,0x00},/*"6",22*/
{0x00,0x1C,0x10,0x10,0x13,0x1C,0x10,0x00,0x00,0x00,0x00,0xFC,0x00,0x00,0x00,0x00},/*"7",23*/
{0x00,0x0E,0x11,0x10,0x10,0x11,0x0E,0x00,0x00,0x38,0x44,0x84,0x84,0x44,0x38,0x00},/*"8",24*/
{0x00,0x07,0x08,0x10,0x10,0x08,0x07,0x00,0x00,0x00,0x8C,0x44,0x44,0x88,0xF0,0x00},/*"9",25*/
{0x00,0x00,0x00,0x03,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x0C,0x0C,0x00,0x00,0x00},/*":",26*/
{0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x06,0x00,0x00,0x00,0x00},/*";",27*/
{0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x04,0x00},/*"<",28*/
{0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x00,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x00},/*"=",29*/
{0x00,0x10,0x08,0x04,0x02,0x01,0x00,0x00,0x00,0x04,0x08,0x10,0x20,0x40,0x80,0x00},/*">",30*/
{0x00,0x0E,0x12,0x10,0x10,0x10,0x0F,0x00,0x00,0x00,0x00,0x0C,0x6C,0x80,0x00,0x00},/*"?",31*/
{0x03,0x0C,0x13,0x14,0x17,0x08,0x07,0x00,0xE0,0x18,0xE4,0x24,0xC4,0x28,0xD0,0x00},/*"@",32*/
{0x00,0x00,0x03,0x1C,0x07,0x00,0x00,0x00,0x04,0x3C,0xC4,0x40,0x40,0xE4,0x1C,0x04},/*"A",33*/
{0x10,0x1F,0x11,0x11,0x11,0x0E,0x00,0x00,0x04,0xFC,0x04,0x04,0x04,0x88,0x70,0x00},/*"B",34*/
{0x03,0x0C,0x10,0x10,0x10,0x10,0x1C,0x00,0xE0,0x18,0x04,0x04,0x04,0x08,0x10,0x00},/*"C",35*/
{0x10,0x1F,0x10,0x10,0x10,0x08,0x07,0x00,0x04,0xFC,0x04,0x04,0x04,0x08,0xF0,0x00},/*"D",36*/
{0x10,0x1F,0x11,0x11,0x17,0x10,0x08,0x00,0x04,0xFC,0x04,0x04,0xC4,0x04,0x18,0x00},/*"E",37*/
{0x10,0x1F,0x11,0x11,0x17,0x10,0x08,0x00,0x04,0xFC,0x04,0x00,0xC0,0x00,0x00,0x00},/*"F",38*/
{0x03,0x0C,0x10,0x10,0x10,0x1C,0x00,0x00,0xE0,0x18,0x04,0x04,0x44,0x78,0x40,0x00},/*"G",39*/
{0x10,0x1F,0x10,0x00,0x00,0x10,0x1F,0x10,0x04,0xFC,0x84,0x80,0x80,0x84,0xFC,0x04},/*"H",40*/
{0x00,0x10,0x10,0x1F,0x10,0x10,0x00,0x00,0x00,0x04,0x04,0xFC,0x04,0x04,0x00,0x00},/*"I",41*/
{0x00,0x00,0x10,0x10,0x1F,0x10,0x10,0x00,0x03,0x01,0x01,0x01,0xFE,0x00,0x00,0x00},/*"J",42*/
{0x10,0x1F,0x11,0x03,0x14,0x18,0x10,0x00,0x04,0xFC,0x04,0x80,0x64,0x1C,0x04,0x00},/*"K",43*/
{0x10,0x1F,0x10,0x00,0x00,0x00,0x00,0x00,0x04,0xFC,0x04,0x04,0x04,0x04,0x0C,0x00},/*"L",44*/
{0x10,0x1F,0x1F,0x00,0x1F,0x1F,0x10,0x00,0x04,0xFC,0x00,0xFC,0x00,0xFC,0x04,0x00},/*"M",45*/
{0x10,0x1F,0x0C,0x03,0x00,0x10,0x1F,0x10,0x04,0xFC,0x04,0x00,0xE0,0x18,0xFC,0x00},/*"N",46*/
{0x07,0x08,0x10,0x10,0x10,0x08,0x07,0x00,0xF0,0x08,0x04,0x04,0x04,0x08,0xF0,0x00},/*"O",47*/
{0x10,0x1F,0x10,0x10,0x10,0x10,0x0F,0x00,0x04,0xFC,0x84,0x80,0x80,0x80,0x00,0x00},/*"P",48*/
{0x07,0x08,0x10,0x10,0x10,0x08,0x07,0x00,0xF0,0x18,0x24,0x24,0x1C,0x0A,0xF2,0x00},/*"Q",49*/
{0x10,0x1F,0x11,0x11,0x11,0x11,0x0E,0x00,0x04,0xFC,0x04,0x00,0xC0,0x30,0x0C,0x04},/*"R",50*/
{0x00,0x0E,0x11,0x10,0x10,0x10,0x1C,0x00,0x00,0x1C,0x04,0x84,0x84,0x44,0x38,0x00},/*"S",51*/
{0x18,0x10,0x10,0x1F,0x10,0x10,0x18,0x00,0x00,0x00,0x04,0xFC,0x04,0x00,0x00,0x00},/*"T",52*/
{0x10,0x1F,0x10,0x00,0x00,0x10,0x1F,0x10,0x00,0xF8,0x04,0x04,0x04,0x04,0xF8,0x00},/*"U",53*/
{0x10,0x1E,0x11,0x00,0x00,0x13,0x1C,0x10,0x00,0x00,0xE0,0x1C,0x70,0x80,0x00,0x00},/*"V",54*/
{0x1F,0x10,0x00,0x1F,0x00,0x10,0x1F,0x00,0xC0,0x3C,0xE0,0x00,0xE0,0x3C,0xC0,0x00},/*"W",55*/
{0x10,0x18,0x16,0x01,0x01,0x16,0x18,0x10,0x04,0x0C,0x34,0xC0,0xC0,0x34,0x0C,0x04},/*"X",56*/
{0x10,0x1C,0x13,0x00,0x13,0x1C,0x10,0x00,0x00,0x00,0x04,0xFC,0x04,0x00,0x00,0x00},/*"Y",57*/
{0x08,0x10,0x10,0x10,0x13,0x1C,0x10,0x00,0x04,0x1C,0x64,0x84,0x04,0x04,0x18,0x00},/*"Z",58*/
{0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00},/*"[",59*/
{0x00,0x30,0x0C,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x1C,0x03,0x00},/*"\",60*/
{0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00},/*"]",61*/
{0x00,0x00,0x20,0x40,0x40,0x40,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"^",62*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01},/*"_",63*/
{0x00,0x40,0x40,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"`",64*/
{0x00,0x00,0x01,0x01,0x01,0x01,0x00,0x00,0x00,0x98,0x24,0x44,0x44,0x44,0xFC,0x04},/*"a",65*/
{0x10,0x1F,0x00,0x01,0x01,0x00,0x00,0x00,0x00,0xFC,0x88,0x04,0x04,0x88,0x70,0x00},/*"b",66*/
{0x00,0x00,0x00,0x01,0x01,0x01,0x00,0x00,0x00,0x70,0x88,0x04,0x04,0x04,0x88,0x00},/*"c",67*/
{0x00,0x00,0x00,0x01,0x01,0x11,0x1F,0x00,0x00,0x70,0x88,0x04,0x04,0x08,0xFC,0x04},/*"d",68*/
{0x00,0x00,0x01,0x01,0x01,0x01,0x00,0x00,0x00,0xF8,0x44,0x44,0x44,0x44,0xC8,0x00},/*"e",69*/
{0x00,0x01,0x01,0x0F,0x11,0x11,0x11,0x18,0x00,0x04,0x04,0xFC,0x04,0x04,0x00,0x00},/*"f",70*/
{0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x00,0x00,0xD6,0x29,0x29,0x29,0xC9,0x06,0x00},/*"g",71*/
{0x10,0x1F,0x00,0x01,0x01,0x01,0x00,0x00,0x04,0xFC,0x84,0x00,0x00,0x04,0xFC,0x04},/*"h",72*/
{0x00,0x01,0x19,0x19,0x00,0x00,0x00,0x00,0x00,0x04,0x04,0xFC,0x04,0x04,0x00,0x00},/*"i",73*/
{0x00,0x00,0x00,0x01,0x19,0x19,0x00,0x00,0x00,0x03,0x01,0x01,0x01,0xFE,0x00,0x00},/*"j",74*/
{0x10,0x1F,0x00,0x00,0x01,0x01,0x01,0x00,0x04,0xFC,0x24,0x40,0xB4,0x0C,0x04,0x00},/*"k",75*/
{0x00,0x10,0x10,0x1F,0x00,0x00,0x00,0x00,0x00,0x04,0x04,0xFC,0x04,0x04,0x00,0x00},/*"l",76*/
{0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x00,0x04,0xFC,0x04,0x00,0xFC,0x04,0x00,0xFC},/*"m",77*/
{0x01,0x01,0x00,0x01,0x01,0x01,0x00,0x00,0x04,0xFC,0x84,0x00,0x00,0x04,0xFC,0x04},/*"n",78*/
{0x00,0x00,0x01,0x01,0x01,0x01,0x00,0x00,0x00,0xF8,0x04,0x04,0x04,0x04,0xF8,0x00},/*"o",79*/
{0x01,0x01,0x00,0x01,0x01,0x00,0x00,0x00,0x01,0xFF,0x85,0x04,0x04,0x88,0x70,0x00},/*"p",80*/
{0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x00,0x00,0x70,0x88,0x04,0x04,0x05,0xFF,0x01},/*"q",81*/
{0x01,0x01,0x01,0x00,0x01,0x01,0x01,0x00,0x04,0x04,0xFC,0x84,0x04,0x00,0x80,0x00},/*"r",82*/
{0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x00,0x00,0xCC,0x24,0x24,0x24,0x24,0x98,0x00},/*"s",83*/
{0x00,0x01,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0xF8,0x04,0x04,0x00,0x00},/*"t",84*/
{0x01,0x01,0x00,0x00,0x00,0x01,0x01,0x00,0x00,0xF8,0x04,0x04,0x04,0x08,0xFC,0x04},/*"u",85*/
{0x01,0x01,0x01,0x00,0x00,0x01,0x01,0x01,0x00,0x80,0x70,0x0C,0x10,0x60,0x80,0x00},/*"v",86*/
{0x01,0x01,0x00,0x01,0x00,0x01,0x01,0x01,0xF0,0x0C,0x30,0xC0,0x30,0x0C,0xF0,0x00},/*"w",87*/
{0x00,0x01,0x01,0x00,0x01,0x01,0x01,0x00,0x00,0x04,0x8C,0x74,0x70,0x8C,0x04,0x00},/*"x",88*/
{0x01,0x01,0x01,0x00,0x00,0x01,0x01,0x01,0x01,0x81,0x71,0x0E,0x18,0x60,0x80,0x00},/*"y",89*/
{0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x00,0x00,0x84,0x0C,0x34,0x44,0x84,0x0C,0x00},/*"z",90*/
{0x00,0x00,0x00,0x00,0x01,0x3E,0x40,0x40,0x00,0x00,0x00,0x00,0x00,0xFC,0x02,0x02},/*"{",91*/
{0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00},/*"|",92*/
{0x00,0x40,0x40,0x3E,0x01,0x00,0x00,0x00,0x00,0x02,0x02,0xFC,0x00,0x00,0x00,0x00},/*"}",93*/
{0x00,0x60,0x80,0x80,0x40,0x40,0x20,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"~",94*/
};

const unsigned char flag[36]= {
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x70,0x70,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x38,0x38,0x38,0x00,0x00,0x00,0x00,/*":",0*/
};/*":",0*/


static void oled_wrcmd(uint8_t cmd)
{
ssd1306_write(cmd, SSD1306_CMD);
}

static void oled_wrdata(const uint8_t *data, uint32_t len)
{
int i=0;
if (len <= OLED_MAX_TRANSFER_DATA_LEN)
for (i = 0; i < len; i++, data++)
ssd1306_write(*data, SSD1306_DATA);
}

static void oled_setpos(uint8_t column, uint8_t page)
{
oled_wrcmd(0xb0 + page);
oled_wrcmd(((column & 0xf0) >> 4) | 0x10);
oled_wrcmd((column & 0x0f) | 0x00);
}

static void oled_draw(uint8_t column, uint8_t page , const uint8_t *data, uint32_t len)
{
oled_setpos(column, page);
oled_wrdata(data, len);
}

int32_t oled_draw_char_1608(uint8_t x, uint8_t y, uint8_t c)
{
const uint8_t *temp;
c -= ' ';
if (x > 128 || y > 7) {
printf("oled show char %c error\n", c);
return -1;
}

y = 7 - y;
temp = &ascii_1608[c][0];
oled_draw(x, y, temp, 8);
oled_draw(x, y - 1, &temp[8], 8);
}

int32_t oled_draw_string_1608(uint8_t column, uint8_t page, const char *str)
{
if (column > 128 || page > 7) {
printf("oled show str error\n");
return -1;
}
const char *p = str;
while (*p != '\0') {
oled_draw_char_1608(column, page, *(p++));
column += 8;
if (column > 128 || (128 - column) < 8) {
page += 2;
column = 0;
}
}
return 0;
}

int32_t oled_draw_p8xnstr(uint8_t column, uint8_t page, const uint8_t* str, uint8_t len)
{
oled_draw(column, page, str, len);
return 0;
}

void oled_clear_screen(void)
{
uint8_t data[128] = {0};
int i = 0;
for (i = 0; i <= 7; i++)
oled_draw_p8xnstr(0, i, data, 128);
}

26 changes: 26 additions & 0 deletions board/xr871evb/oled.h
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,26 @@
/*
* Copyright (C) 2017 YunOS Project. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

#ifndef _OLED_H_
#define _OLED_H_

int32_t oled_draw_char_1608(uint8_t x, uint8_t y, uint8_t c);
int32_t oled_draw_string_1608(uint8_t column, uint8_t page, const char *str);
int32_t oled_draw_p8xnstr(uint8_t column, uint8_t page, const uint8_t* str, uint8_t len);
void oled_clear_screen(void);

#endif

114 changes: 114 additions & 0 deletions board/xr871evb/ssd1306.c
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,114 @@
/*
* Copyright (C) 2017 YunOS Project. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

#include "hal/soc/soc.h"
#include <aos/kernel.h>
#include <aos/aos.h>
#include "ssd1306.h"

static spi_dev_t oled_spi_dev;
static gpio_dev_t gpio_oled_cs;
static gpio_dev_t gpio_oled_ds;
static gpio_dev_t gpio_oled_reset;

int32_t ssd1306_write(uint8_t data, SSD1306_WR_MODE mode)
{
if(mode == SSD1306_CMD) {
hal_gpio_output_low(&gpio_oled_ds);
} else if(mode == SSD1306_DATA) {
hal_gpio_output_high(&gpio_oled_ds);
}
hal_spi_send(&oled_spi_dev, &data, 1, 0xffffffff);
return 0;
}

void ssd1306_init(void)
{
oled_spi_dev.port = 1;
oled_spi_dev.config.mode = HAL_SPI_MODE_MASTER;
oled_spi_dev.config.freq = 6000000;
hal_spi_init(&oled_spi_dev);

//config reset and ds pin
gpio_oled_reset.port = 8; //PA8
gpio_oled_reset.config = OUTPUT_PUSH_PULL;
hal_gpio_init(&gpio_oled_reset);
hal_gpio_output_high(&gpio_oled_reset);

gpio_oled_cs.port = 22; //PA22
gpio_oled_cs.config = OUTPUT_PUSH_PULL;
hal_gpio_init(&gpio_oled_cs);
hal_gpio_output_high(&gpio_oled_cs);
aos_msleep(1);
hal_gpio_output_low(&gpio_oled_cs);

gpio_oled_ds.port = 20; //PA20
gpio_oled_ds.config = OUTPUT_PUSH_PULL;
hal_gpio_init(&gpio_oled_ds);
hal_gpio_output_high(&gpio_oled_ds);

aos_msleep(1);
hal_gpio_output_low(&gpio_oled_reset);
aos_msleep(1);
hal_gpio_output_high(&gpio_oled_reset);

//config oled
ssd1306_write(SSD1306_DISPLAYOFF, SSD1306_CMD);
ssd1306_write(SSD1306_SETDISPLAYCLOCKDIV, SSD1306_CMD);
ssd1306_write(80, SSD1306_CMD);
ssd1306_write(SSD1306_SETMULTIPLEX, SSD1306_CMD);
ssd1306_write(0x3F, SSD1306_CMD);
ssd1306_write(SSD1306_SETDISPLAYOFFSET, SSD1306_CMD);
ssd1306_write(0x00, SSD1306_CMD);
ssd1306_write(SSD1306_SETSTARTLINE, SSD1306_CMD);
ssd1306_write(SSD1306_ENABLE_CHARGE_PUMP, SSD1306_CMD);
ssd1306_write(0x14, SSD1306_CMD);
ssd1306_write(SSD1306_MEMORYMODE, SSD1306_CMD);
ssd1306_write(0x02, SSD1306_CMD);
ssd1306_write(0xA1, SSD1306_CMD);
ssd1306_write(SSD1306_COMSCANINC, SSD1306_CMD);
ssd1306_write(SSD1306_SETCOMPINS, SSD1306_CMD);
ssd1306_write(0X12, SSD1306_CMD);
ssd1306_write(SSD1306_SETCONTRAST, SSD1306_CMD);
ssd1306_write(0x1F, SSD1306_CMD); //set brightness
ssd1306_write(SSD1306_SETPRECHARGE, SSD1306_CMD);
ssd1306_write(0xF1, SSD1306_CMD);
ssd1306_write(SSD1306_SETVCOMDETECT, SSD1306_CMD);
ssd1306_write(0x30, SSD1306_CMD);
ssd1306_write(SSD1306_DISPLAYALLON_RESUME, SSD1306_CMD);
ssd1306_write(SSD1306_NORMALDISPLAY, SSD1306_CMD);
ssd1306_write(SSD1306_DISPLAYON, SSD1306_CMD);

return 0;
}

void ssd1306_deinit(void)
{
hal_spi_finalize(&oled_spi_dev);
}

void ssd1306_set_brightness(uint8_t brightness)
{
ssd1306_write(SSD1306_SETCONTRAST, SSD1306_CMD);
ssd1306_write(brightness, SSD1306_CMD); //set brightness
}

void ssd1306_reset(void)
{
hal_gpio_output_low(&gpio_oled_reset);
aos_msleep(1);
hal_gpio_output_high(&gpio_oled_reset);
}
Loading

0 comments on commit 8844133

Please sign in to comment.