收藏本站
44-Pin Demo Board User’s Guide
Rotate
The rotate instructions ( RRF or RLF ) shift all the bits in the file register right or left by
one position, through the Carry bit. The Carry bit is shifted into the byte and receives
the bit shifted out of the byte. The Carry bit should be cleared before rotation so
unwanted bits are not introduced into the display byte. The Carry bit also indicates
when the display byte is empty. When it is, reinsert the ‘ 1 ’ at bit 3.
PIC microcontrollers have two rotate instructions: Rotate Left ( RLF ) and Rotate Right
( RRF ). These instructions rotate the contents of a file register and Carry bit one place.
The Carry bit is found in the STATUS Special Function Register.
FIGURE 3-2:
ROTATE LEFT
Carry
File Register
EXAMPLE 3-4:
Start:
BSF
CLRF
BCF
MOVLW
MOVWF
MainLoop:
ROTATE EXAMPLE
STATUS,RP0 ; select Register Bank 1
TRISD ; make IO PortD all output
STATUS,RP0 ; back to Register Bank 0
0x80
Display
MOVF
MOVWF
OndelayLoop:
Display,w
PORTD
; Copy the display to the LEDs
DECFSZ
GOTO
DECFSZ
GOTO
Delay1,f ; Delay .197 s
OndelayLoop
Delay2,f
OndelayLoop
BCF
RRF
BTFSC
BSF
STATUS,C
Display,f
STATUS,C
Display,7
;
;
;
;
ensure the carry bit is clear
rotate display right
Did the bit rotate into the carry?
yes, put it into bit 7.
DS41296B-page 18
GOTO
MainLoop
? 2007 Microchip Technology Inc.
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
DM240011 KIT STARTER MPLAB FOR PIC24F MCU
DM240021 KIT STARTER MPLAB FOR PIC24H
DM240311 BOARD DEV PIC24F16KA102 XLP
DM300018 BOARD DEMO DSPICDEM 2
DM300019 BOARD DEMO DSPICDEM 80L STARTER
DM300024 KIT DEMO DSPICDEM 1.1
DM330012 KIT USB STARTER FOR DSPIC33E
DM330013 MICROSTICK DSPIC33F/PIC24H BOARD
相关代理商/技术参数
DM240002 制造商:Microchip Technology Inc 功能描述:Explorer 16 kit(44-PIN) w/ PIC24FJ64GA00
DM240011 功能描述:开发板和工具包 - PIC / DSPIC MPLAB Starter Kit for PIC24F MCU 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:
DM240012 功能描述:开发板和工具包 - PIC / DSPIC PIC24E USB Starter Kit 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:
DM240013-1 功能描述:开发板和工具包 - PIC / DSPIC Microstick for 3V PIC24F K-series 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:
DM240013-2 功能描述:开发板和工具包 - PIC / DSPIC 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:
DM240014 制造商:Microchip Technology Inc 功能描述:MICROSTICK FOR USB PIC24F - Boxed Product (Development Kits) 制造商:Microchip Technology Inc 功能描述:ACCY MICROSTICK USB PIC24F 制造商:Microchip Technology Inc 功能描述:MICROSTICK USB PIC24F
DM240015 制造商:Microchip Technology Inc 功能描述:MPLAB STARTER KIT FOR PIC24F INTELLIGENT INTEGRATED ANALOG - Boxed Product (Development Kits) 制造商:Microchip Technology Inc 功能描述:KIT MPLAB STARTER FOR PIC24F ANL 制造商:Microchip Technology Inc 功能描述:PIC24F GC INTELLIGENT ANALOG DEV KIT 制造商:Microchip Technology Inc 功能描述:PIC24F, GC INTELLIGENT ANALOG, DEV KIT 制造商:Microchip Technology Inc 功能描述:Starter Kit for PIC24F Intelligent Integrated Analog Series 制造商:Microchip Technology Inc 功能描述:Development Boards & Kits - PIC / DSPIC 制造商:Microchip Technology Inc 功能描述:PIC24F, GC INTELLIGENT ANALOG, DEV KIT, Silicon Manufacturer:Microchip, Core Arc 制造商:Microchip Technology Inc 功能描述:PIC24F, GC INTELLIGENT ANALOG, DEV KIT, Silicon Manufacturer:Microchip, Core Architecture:PIC, Core Sub-Architecture:PIC24, Silicon Core Number:PIC24FJ128GC010, Silicon Family Name:PIC24FJxxxGCxxx, Kit Contents:Starter Board 制造商:Microchip Technology Inc 功能描述:MPLAB Starter Kit for PIC24F Intelligent Integrated Analog, Starter Kits
DM240021 功能描述:开发板和工具包 - PIC / DSPIC MPLAB STARTER KIT FOR PIC24H 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: