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| 型号： | DM163035 |
| 厂商： | Microchip Technology |
| 文件页数： | 58/96页 |
| 文件大小： | 0K |
| 描述： | KIT DEVELOPMENT PICDEM LAB |
| 标准包装： | 1 |
| 系列： | PICDEM™ |
| 类型： | MCU |
| 适用于相关产品： | PIC10F206，PIC16F690，PIC16F819 |
| 所含物品： | 板，线缆，元件，CD，PICkit 编程器 |
| 产品目录页面： | 659 (CN2011-ZH PDF) |
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PICDEM TM Lab Development Board User’s Guide
The INTCON register is needed as well to implement the interrupt-on-change feature.
Again the GIE bit needs to be set to enable any interrupts used on the microcontroller.
To configure for an interrupt-on-change, the PORTA/PORTB Change Interrupt Enable
bit (RABIE) must be set along with the individual enable bits in the IOCA register. On
an interrupt-on-change for configured pins, the PORTA/PORTB Change Interrupt Flag
bit (RABIF) will be set. To detect a logic change on a port pin, the firmware needs to
know what has changed. Therefore, PORTA must be read before an
interrupt-on-change can occur. Reading PORTA retains, or latches, the current value
on the RA2 pin for later reference. In the event that the signal on the RA2 pin changes
and a mismatch with the reference value occurs, an interrupt will result.
The main() software flowchart for this lab remains the same as that in Figure 3-24 of
the previous lab. The Interrupt Service Routine changes since it now must determine
whether the interrupt occurred due to a high-to-low or low-to-high transition on pin RA2.
FIGURE 3-25:
PB_PRESSISR FLOWCHART FOR LAB 7
pb_pressISR()
RABIE and RABIF
bits set
?
YES
Clear RABIF flag
NO
RA2 pin = 0
?
YES
NO
RA2 pin = 1
?
Delay for 5mS
Delay for 5mS
RA2 pin = 0
?
YES
NO
NO
RA2 pin = 1
direction = 1
?
direction = 1
Read PORTA
RETURN
DS41369A-page 54
? 2009 Microchip Technology Inc.
相关PDF资料 |
PDF描述 |
|---|---|
| DM164120-1 | BOARD DEMO PICKIT 2 LP COUNT |
| DM164120-3 | BOARD DEMO PICKIT2 28-PIN |
| DM164120-5 | BOARD DEMO PICKIT 2 64/80-PIN |
| DM164123 | KIT MANAGEMENT SYSTEM PICDEM |
| DM180021 | KIT STARTER MPLAB FOR PIC18F MCU |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DM163035+TEFLCST3 | 制造商:Microchip Technology Inc 功能描述:KIT PICDEMLAB+FLOWCODE-HOME BUNDLE/ 制造商:Microchip Technology Inc 功能描述:PICDEM, FLOW CODE, LAB, DEV KIT |
| DM163045 | 功能描述:开发板和工具包 - PIC / DSPIC PICDEM Lab Dev Kit (with PICkit 3) 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: |
| DM1-63-C | 功能描述:端子 Metric Fem Disc non-insulated RoHS:否 制造商:AVX 产品:Junction Box - Wire to Wire 系列:9826 线规:26-18 接线柱/接头大小: 绝缘: 颜色:Red 型式:Female 触点电镀:Tin over Nickel 触点材料:Beryllium Copper, Phosphor Bronze 端接类型:Crimp |
| DM1-63M-C | 功能描述:端子 Metric Male Disc non-insulated, 0 RoHS:否 制造商:AVX 产品:Junction Box - Wire to Wire 系列:9826 线规:26-18 接线柱/接头大小: 绝缘: 颜色:Red 型式:Female 触点电镀:Tin over Nickel 触点材料:Beryllium Copper, Phosphor Bronze 端接类型:Crimp |
| DM164 | 制造商:SITI 制造商全称:SITI 功能描述:8x3-CHANNEL CONSTANT CURRENT LED DRIVER |
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