ESP32驱动microSD_SSD1351显示图片很慢求大神帮忙
本帖最后由 qhdyang 于 2018-12-1 08:21 编辑
#include <Ucglib.h>
/*
MicroSD card 与 esp32 SPI引脚连接:
MicroSD Card | ESP32
GND GND
VCC 3.3V
SCK D2 SCK
MOSI D4 MOSI
MISO D3 MISO
CS D5 CS
-
*/
#include "FS.h"
#include "SD.h"
#include "SPI.h"
/*
SSD1351 OLED | ESP32 SPI 4线或5线引脚连接
GND GND
VCC 3.3V
SCL . A3 SCL1 | A5 SCK1
SDA . A4 SDA1 | A8 MOSI1
RES . A9 | GDIO--
DC . A6 MISO1
CS A7 CS1
*/
#define my_sclk 25
#define my_mosi 26
#define my_dc 12
#define my_cs 15
#define my_rst2
/*
本例程使用的scl sda 5线连接
*/
Ucglib_SSD1351_18x128x128_FT_SWSPI ucg(/*sclk=*/ my_sclk, /*data=*/ my_mosi, /*cd=*/ my_dc, /*cs=*/ my_cs, /*reset=*/ my_rst);
// Color definitions
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
#include <dht11.h>
#define test_led LED_BUILTIN
dht11 DHT11;
#define DHT11PIN 14
String text;
// the file itself
File bmpFile;
// information we extract about the bitmap file
int bmpWidth, bmpHeight;
uint8_t bmpDepth, bmpImageoffset;
unsigned long startTime, endTime; // For calculating FPS.
unsigned int frames;
#define ATN 5 // 定义MicroSD card CS片选引脚
#define SD_CS ATN // 定义SD卡的CS片选
#define sd_led D6
void setup() {
Serial.begin(115200);
Serial.println("DHT11 TEST PROGRAM ");
Serial.print("LIBRARY VERSION: ");
Serial.println(DHT11LIB_VERSION);
Serial.println();
pinMode(test_led,OUTPUT);
digitalWrite(test_led,HIGH);
pinMode(sd_led, OUTPUT);
digitalWrite(sd_led, HIGH);
pinMode(SD_CS, OUTPUT);
digitalWrite(SD_CS, LOW);
delay(1000);
ucg.begin(UCG_FONT_MODE_TRANSPARENT);
ucg.clearScreen();
/***********检查装载MicroSD是是否成功**********/
if (!SD.begin(SD_CS)) {
Serial.println("Card Mount Failed-SD卡装载失败");
DrawFoneStr(0, 15, 8, "SD Card Failed!" );
digitalWrite(sd_led, LOW);
return;
}
DrawFoneStr(0, 15, 8, "SD Card OK!" );
Serial.println("SD卡装载完成");
sdType();//验证SD卡类型
/***********装载DH11温湿度和验证是否装载***********/
int chk = DHT11.read(DHT11PIN);
Serial.print("Read sensor: ");
switch (chk)
{
case DHTLIB_OK:
Serial.println("OK");
DrawFoneStr(0, 75, 8, "DH11 OK!" );
break;
case DHTLIB_ERROR_CHECKSUM:
Serial.println("Checksum error");
DrawFoneStr(0, 85, 8, "DH11 Checksum error" );
break;
case DHTLIB_ERROR_TIMEOUT:
Serial.println("Time out error");
DrawFoneStr(0, 95, 8, "DH11 Time out error" );
break;
default:
Serial.println("Unknown error");
DrawFoneStr(0, 105, 8, "DH11 Unknown error" );
break;
}
uint64_t cardSize = SD.cardSize() / (1024 * 1024);
Serial.printf("SD Card Size: %lluMB\n", cardSize);
DrawFoneStr(0, 55, 8, "SD Size:" );
ucg.setFont(ucg_font_helvB08_tr);
ucg.setColor(255, 255, 255);
ucg.setPrintPos(60, 55);
ucg.print((int)cardSize);
DrawFoneStr(90, 55, 8, "MB" );
//readFile(SD, "/1.bmp");
delay(300);
//readFile(SD, "/2.bmp");
/*
listDir(SD, "/", 0);
createDir(SD, "/mydir");
listDir(SD, "/", 0);
removeDir(SD, "/mydir");
listDir(SD, "/", 2);
writeFile(SD, "/hello.txt", "Hello1111 ");
appendFile(SD, "/hello.txt", "World! chine\n");
readFile(SD, "/hello.txt");
deleteFile(SD, "/foo.txt");
renameFile(SD, "/hello.txt", "/foo.txt");
readFile(SD, "/foo.txt");
testFileIO(SD, "/test.txt");
*/
Serial.printf("Total space: %lluMB\n", SD.totalBytes() / (1024 * 1024));
Serial.printf("Used space: %lluMB\n", SD.usedBytes() / (1024 * 1024));
}
void loop() {
delay(50);
startTime = millis();
frames = 0;
for (int n = 0; n < 1; n++) { // .46 FPS before SPI_FULL_SPEED was added to SDClass::begin in SD.cpp in SD library..56 fps after.1.46 FPS after adding block transfer to SD lib.
bmpDraw("/1.bmp", 0, 0);
bmpDraw("/2.bmp", 0, 0);
bmpDraw("/3.bmp", 0, 0);
frames = frames + 3;
}
endTime = millis();
ucg.setColor(255,255,255);
ucg.drawFrame(0,0,127,127);
}
使用软件模拟的SPI速度肯定慢，U8GLIB中SSD1351支持硬件SPI
U8GLIB_SSD1351_128X128_4X_332(uint8_t cs, uint8_t a0, uint8_t reset = U8G_PIN_NONE)
: U8GLIB(&u8g_dev_ssd1351_128x128_4x_332_hw_spi, cs, a0, reset) zxm39161 发表于 2019-1-31 14:16
使用软件模拟的SPI速度肯定慢，U8GLIB中SSD1351支持硬件SPI
U8GLIB_SSD1351_128X128_4X_332(uint8_t cs,...
用8266能不能刷动128*128分辨率的SSD1351的OLED呢。。
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