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参数资料
| 型号： | DM164130-1 |
| 厂商： | Microchip Technology |
| 文件页数： | 16/42页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL PICKIT PIC16LF1937 |
| 标准包装： | 1 |
| 系列： | PICkit™ |
| 类型： | MCU |
| 适用于相关产品： | PIC16LF1937 |
| 所含物品： | 板 |
| 产品目录页面： | 659 (CN2011-ZH PDF) |
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F1 Evaluation Platform User’s Guide
2.7.4
LCD Display
The time, temperature, pot position and motor speed are displayed on the LCD. The
LCD is a 3.5-digit multimeter display with icons for amps, volts, ohms, etc. The display
uses 4 commons and 10 segment drives. The Timer1 oscillator is used to clock the
display peripheral and allow the display to show a picture even in Sleep. The LCD
peripheral was configured for a Type B waveform for this demo. This mode provides an
interrupt when the LCD can be updated. This interrupt is not required for Type A
waveforms, but the extra complexity of the interrupt allows the LCD peripheral to be
used to provide the real-time clock periodic interrupt. The different waveform types are
described in section 21.9 of the PIC16LF193X data sheet (DS41364). Normally, the
Timer1 counter would be used, but this timer is required for the BLDC software.
Because the LCD is clocked from the 32.768 kHz crystal, the LCDIF operates at a
multiple of the crystal frequency, providing a very accurate time base for the real-time
clock.
2.7.5
User Interface
Due to the extreme simplicity of this board, only a single button and a single pot are
available for user input. These two elements allow the user to cycle through the display
elements, change the motor speed and change the time.
Pressing and releasing the button cycles through the 4 display modes:
1. Time
2. Temperature
3. Pot ADC value
4. RPM
Turning the pot will change the motor speed or set the time.
If the display is showing the time, and the button is held down for 3 seconds, turning
the pot clockwise will increase the time, and counter clockwise will decrease the time.
Placing the pot in the center of the range will leave the time unchanged. A feature that
could be added as a simple programming exercise would be to allow the time change
to be faster or slower depending upon pot position.
DS41401A-page 16
? 2009 Microchip Technology Inc.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DM164130-1 | 制造商:Microchip Technology Inc 功能描述:MCH1P - SKU FOR APRIL BUNDLE |
| DM164130-10 | 功能描述:开发板和工具包 - PIC / DSPIC F1 PSMC 28-PIN EVAL BOARD PLATFORM RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
| DM164130-2 | 功能描述:子卡和OEM板 F1 BLDC Motor Add-On RoHS:否 制造商:BeagleBoard by CircuitCo 产品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit |
| DM164130-3 | 功能描述:开发板和工具包 - PIC / DSPIC PICkit 28-Pin LIN Demo Board RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
| DM164130-4 | 功能描述:开发板和工具包 - PIC / DSPIC PICkit 44-Pin Demo Board RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
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