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| 型号： | DM163035 |
| 厂商： | Microchip Technology |
| 文件页数： | 54/96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
Referring to the flowchart in Figure 3-24, the PB_PressISR() replaces the
Get_Inputs() used in Lab 4 with a few additions. At the beginning of the ISR, the
INTE and INTF bits are first checked to ensure that the RA2/INT external interrupt is
indeed enabled and that the flag is set indicating that an RA2/INT external interrupt has
occurred. Determining the source of an interrupt becomes especially important if
multiple peripherals are configured to cause an interrupt. The ISR then clears the
RA2/INT external interrupt flag so that subsequent interrupts will be registered. The
ISR then performs the RA2 check along with the debounce routine that was discussed
in the previous lab.
3.4.5.3
PROCEDURE
Using the firmware developed in the previous lab, make the following changes:
1. Copy/paste the Interrupt Service Routine in Figure 3-23 at the top of the firmware
source file under the section labeled:
/**INTERRUPT CODE***************************************/
EXAMPLE 3-23:
PB_PRESSISR() CODE FOR GPIO LAB 6
/*---------------------------------------------------------
-
Subroutine: Interrupt Service Routine
Parameters: none
Returns:nothing
Synopsis:Execute this code on any interrupt
---------------------------------------------------------*/
void interrupt PB_PressISR(void)
{
//Check to see if the interrupt was caused by
//the external interrupt on RA2
//If so, clear the external interrupt flag
//to allow subsequent interrupts to be detected
if(INTE && INTF) INTF = 0;
//Check to see if the RA2 pin is 0
//(i.e. push button pressed)
if(RA2 == 0)
{
//If RA2 is 0 delay for 5mS to filter
//any switch bounce
Delay_5mS();
//Check to see if RA2 is still 0
//If so, toggle the direction bit
if(RA2 == 0) direction ^= 1;
}
//If RA2 is not 0, keep direction value
//the same as it was
else direction = direction;
}
DS41369A-page 50
? 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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