// SPI speed defaults to SPI_DEFAULT_FREQ defined in the library, you can override it here // Note that speed allowable depends on chip and quality of wiring, if you go too fast, you // may end up with a black screen some times, or all the time. //tft.setSPISpeed(40000000); Se...
If any of your settings are variables, you may create a SPISettings object to hold the 3 settings. Then you can give the object name to SPI.beginTransaction(). Creating a named SPISettings object may be more efficient when your settings are not constants, especially if the maximum speed is...
SPI.transfer(val)- SPI传输基于同时发送和接收:接收的数据在receivedVal中返回。 SPI.beginTransaction(SPISettings(speedMaximum,dataOrder,dataMode))- speedMaximum是时钟,dataOrder(MSBFIRST或LSBFIRST),dataMode(SPI_MODE0,SPI_MODE1,SPI_MODE2或SPI_MODE3)。 SPI中有四种操作模式,如下所示: 模式0(默认值)-...
*setSpeed(unsigned int whatSpeed) whatSpeed:设置STEP/DIR模式下每分钟的转数。 *SPI_step(int spi_steps_to_move) spi_steps_to_move:设置SPI模式下前进的步数,正负值确定电机运行方向。 *SPI_setSpeed(unsigned int whatSpeed) whatSpeed:设置SPI模式下每分钟的转数。 *tmc26XStepper.move() STEP/DIR模式...
setDataMode(SPI_MODE0); SPI.setBitOrder(MSBFIRST); SPI.setFrequency(SPI_FREQUENCY); #else pinMode(NORFLASH_CLK_PIN, OUTPUT); pinMode(NORFLASH_MOSI_PIN, OUTPUT); pinMode(NORFLASH_MISO_PIN, INPUT); digitalWrite(NORFLASH_CLK_PIN, LOW); delay(1); #endif // check write enable status ...
本文利用PS2手柄和Arduino开发板制作了一个简易的遥控小车,利用蓝牙进行通信,可以实现前后左右的移动。(原理掌握之后可以自己拓展相关功能) 一、零件 1.Arduino UNO开发板: ArduinoUNO是ArduinoUSB接口系列的最新版本,作为Arduino平台的参考标准模板。UNO的处理器核心是ATmega328,同时具有14路数字输入/输出口(其中6路可作...
set to -1 and connect to Arduino RESET pin#define TFT_DC 2#define TFT_SDA 20#define TFT_SCL 21#define TFT_BL 19// OPTION 1 (recommended) is to use the HARDWARE SPI pins, which are unique// to each board and not reassignable. For Arduino Uno: MOSI = pin 11 and// SCLK = pin...
(7.0/8) #define _CT -1 //change tone #define _SPD -2 //set speed #define _RSPD -3 //reset speed to default #define _CHPTR -4 //charpter int _f1 =_D; int _f2 =(_f1*r*r); int _f3 =(_f2*r*r); int _f4 =(_f3*r); int _f5 =(_f4*r*r); int _f6 =(_f5*r*...
25.1.16 Serial.setTimeout() 25.1.17 Serial.write() 25.1.18 Serial.SerialEvent() 25.2 Stream 二十六、 USB(仅适用于 Leonardo 和 Due) 26.1 Mouse(键盘) 26.2 Keyboard(鼠标)1 结构部分 1.1 setup() 一、结构 在Arduino 中程序运行时将首先调用 setup() 函数。用于初始化变量、设置针脚的输出 ...
set_lvd(lvd_t lvd)LGT8F328P为低功耗芯片,工作电压为1.8V~5.5V,所以很多在电压1.8V时就可以工作,但是很多事情其他外设还没有工作导致出问题,这个函数可以设置低压检测复位电压,来避免这个问题,电压选择如下,默认为关闭状态。 PM_LVD_1V8, PM_LVD_2V2, PM_LVD_2V5, PM_LVD_2V9, PM_LVD_3V2, PM_LVD...