将Arduino 数字引脚 [2] 连接到“FrequencyMeter1”引脚 将“FrequencyMeter1”引脚连接到 DisplayOLED1 > Text Field1 pin Clock 将“FrequencyMeter1”引脚连接到 DisplayOLED1 > Text Field1 引脚 第5 步:生成、编译和上传 Arduino 代码 在Visuino 中,单击底部的“Build”选项卡,确保选择了正确的端口,然后单击...
确定了Hex文件,还有三个参数项要修订,一是“CLKDIV8(Divide clock by 8)”参数项修改为“Unprogrammed”;二是“CKSEL Fuses”参数项修改为“(1111)Ext. Crystal 8.0-MHz”;三是Advanced Properties的Clock Frequency参数项设为16Mhz。最后点击编辑对话框的“确定”按钮,然后就可以仿真了,如图:(双击ATMEGA328P) ...
将Arduino 数字引脚 [2] 连接到“FrequencyMeter1”引脚 将“FrequencyMeter1”引脚连接到 DisplayOLED1 > Text Field1pin Clock 将“FrequencyMeter1”引脚连接到 DisplayOLED1 > Text Field1 引脚 第5 步:生成、编译和上传 Arduino 代码 在Visuino 中,单击底部的“Build”选项卡,确保选择了正确的端口,然后单击...
图7 Proteus中的ATMEGA328P单片机的Hex文件加载和参数设置 确定了Hex文件,还有三个参数项要修订,一是“CLKDIV8(Divide clock by 8)”参数项修改为“Unprogrammed”;二是“CKSEL Fuses”参数项修改为“(1111)Ext. Crystal 8.0-MHz”;三是Advanced Properties的Clock Frequency参数项设为16Mhz。最后点击编辑对话框的...
This function modifies the clock frequency for I2C communication. I2C slave devices have no minimum working clock frequency, however 100KHz is usually the baseline. Syntax Wire.setClock(clockFrequency) Parameters clockFrequency: the value (in Hertz) of desired communication clock. Accepted values are ...
确定了Hex文件,还有三个参数项要修订,一是“CLKDIV8(Divide clock by 8)”参数项修改为“Unprogrammed”;二是“CKSEL Fuses”参数项修改为“(1111)Ext. Crystal 8.0-MHz”;三是Advanced Properties的Clock Frequency参数项设为16Mhz。最后点击编辑对话框的“确定”按钮,然后就可以仿真了。
确定了Hex文件,还有三个参数项要修订,一是“CLKDIV8(Divide clock by 8)”参数项修改为“Unprogrammed”;二是“CKSEL Fuses”参数项修改为“(1111)Ext. Crystal 8.0-MHz”;三是Advanced Properties的Clock Frequency参数项设为16Mhz。最后点击编辑对话框的“确定”按钮,然后就可以仿真了。
Frequency = CPU Clock frequency / (16 + (2 * (TWBR) *(Prescaler)). Arduino Pro mini 3.3v在8 mHz下运行,为了设置I2C速度到10 kHz,我们使用TWBR值为98,并设置预分频器到4(通过设置TWSR为0)。于是有: 8,000,000 / (16+(2*98 [TWBR value]*4 [prescaler]))=10,000 or10 kHz. ...
//SCL frequency=cpu clock/(16+2(TWBR)*(prescalerValue))void Init_TWI(void){ TWCR = 0x00; //中止IIC //PRR = 0x00; //复位功耗抑制寄存器，TWI唤醒 TWBR = 24; //比特率寄存器为24，产生9615波特率 TWSR|= 0x02; //比特率预分频因子16，page194 //TWAR=0xFF;...
Select your preferred clock frequency.16 MHzis standard on most Arduino boards, including the Arduino UNO. Select what kind of programmer you're using under theProgrammersmenu. If theVariantsoption is presented, you'll have to specify what version of the microcontroller you're using. E.g the ...