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Short-Range

PCF2116系列LCD驅動器芯片簡介及封裝庫

1 FEATURES· Single chip LCD controller/driver· 1 or 2-line display of up to 24 characters per line, or2 or 4 lines of up to 12 characters per line· 5 ′ 7 character format plus cursor; 5 ′ 8 for kana(Japanese syllabary) and user defined symbols· On-chip:– generation of LCD supply voltage (external supplyalso possible)– generation of intermediate LCD bias voltages– oscillator requires no external components (externalclock also possible)· Display data RAM: 80 characters· Character generator ROM: 240 characters· Character generator RAM: 16 characters· 4 or 8-bit parallel bus or 2-wire I2C-bus interface· CMOS/TTL compatible· 32 row, 60 column outputs· MUX rates 1 : 32 and 1 : 16· Uses common 11 code instruction set· Logic supply voltage range, VDD - VSS: 2.5 to 6 V· Display supply voltage range, VDD - VLCD: 3.5 to 9 V· Low power consumption· I2C-bus address: 011101 SA0.

標簽： 2116 PCF LCD 驅動器芯片

上傳時間： 2013-11-08

上傳用戶：laozhanshi111
C51中的關鍵字及用途說明

C51 中的關鍵字關鍵字用途說明auto 存儲種類說明用以說明局部變量，缺省值為此break 程序語句退出最內層循環case 程序語句 Switch 語句中的選擇項char 數據類型說明單字節整型數或字符型數據const 存儲類型說明在程序執行過程中不可更改的常量值continue 程序語句轉向下一次循環default 程序語句 Switch 語句中的失敗選擇項do 程序語句構成do..while 循環結構double 數據類型說明雙精度浮點數else 程序語句構成if..else 選擇結構enum 數據類型說明枚舉extern 存儲種類說明在其他程序模塊中說明了的全局變量flost 數據類型說明單精度浮點數for 程序語句構成for 循環結構goto 程序語句構成goto 轉移結構if 程序語句構成if..else 選擇結構int 數據類型說明基本整型數long 數據類型說明長整型數register 存儲種類說明使用CPU 內部寄存的變量return 程序語句函數返回short 數據類型說明短整型數signed 數據類型說明有符號數，二進制數據的最高位為符號位sizeof 運算符計算表達式或數據類型的字節數static 存儲種類說明靜態變量struct 數據類型說明結構類型數據swicth 程序語句構成switch 選擇結構typedef 數據類型說明重新進行數據類型定義union 數據類型說明聯合類型數據unsigned 數據類型說明無符號數數據void 數據類型說明無類型數據volatile 數據類型說明該變量在程序執行中可被隱含地改變while 程序語句構成while 和do..while 循環結構ANSIC 標準關鍵字關鍵字用途說明bit 位標量聲明聲明一個位標量或位類型的函數sbit 位標量聲明聲明一個可位尋址變量

標簽： C51

上傳時間： 2013-10-08

上傳用戶：waves_0801
FREERTOS的官方移植文檔

FeaturesThe following standard features are provided.• Choice of RTOS scheduling policy1. Pre-emptive:Always runs the highest available task. Tasks of identical priorityshare CPU time (fully pre-emptive with round robin time slicing).2. Cooperative:Context switches only occur if a task blocks, or explicitly callstaskYIELD().• Co-routines (light weight tasks that utilise very little RAM).• Message queues• Semaphores [via macros]• Trace visualisation ability (requires more RAM)• Majority of source code common to all supported development tools• Wide range of ports and examples

標簽： FREERTOS 移植文檔

上傳時間： 2013-10-13

上傳用戶：13162218709
SJA1000 Stand-alone CAN contro

The Controller Area Network (CAN) is a serial, asynchronous, multi-master communication protocol forconnecting electronic control modules, sensors and actuators in automotive and industrial applications.With the SJA1000, Philips Semiconductors provides a stand-alone CAN controller which is more than a simpleeplacement of the PCA82C200.Attractive features are implemented for a wide range of applications, supporting system optimization, diagnosisand maintenance.

標簽： Stand-alone contro 1000 SJA

上傳時間： 2013-11-18

上傳用戶：yxgi5
Using the P82B715 I2C extender

The P82B715 I2C Buffer was designed toextend the range of the local I2C bus out to50 Meters. This application note describesthe results of testing the buffer on severaldifferent types of cables to determine themaximum operating distances possible. Theresults are summarized in a table for easyreference.

標簽： extender P82B715 Using I2C

上傳時間： 2014-12-28

上傳用戶：lou45566
狀態機設計

狀態機設計:8.1.1 數據類型定義語句TYPE語句的用法如下：TYPE 數據類型名IS 數據類型定義OF 基本數據類型;或TYPE 數據類型名IS 數據類型定義;TYPE st1 IS ARRAY ( 0 TO 15 ) OF STD_LOGIC ;TYPE week IS (sun，mon，tue，wed，thu，fri，sat) ; 8.1.1 數據類型定義語句TYPE m_state IS ( st0，st1，st2，st3，st4，st5 ) ;SIGNAL present_state，next_state : m_state ;TYPE BOOLEAN IS (FALSE，TRUE) ；TYPE my_logic IS ( '1' ，'Z' ，'U' ，'0' ) ;SIGNAL s1 : my_logic ;s1 <= 'Z' ;SUBTYPE 子類型名IS 基本數據類型RANGE 約束范圍;SUBTYPE digits IS INTEGER RANGE 0 to 9 ;

標簽： 狀態

上傳時間： 2013-11-05

上傳用戶：nem567397
87LPC76X的IIC從程序

Presents short and simple I2C software routines that support onlyslave (rather than master or master & slave) operation and an ASMdemonstration program. The slave-only software in this app notecomplements the master mode software presented in AN464, Usingthe 87LPC76X microcontroller as an I2C bus master.

標簽： 76X LPC IIC 87

上傳時間： 2013-11-22

上傳用戶：1039312764
XAPP520將符合2.5V和3.3V I/O標準的7系列FPGA高性能I/O Bank進行連接

XAPP520將符合2.5V和3.3V I/O標準的7系列FPGA高性能I/O Bank進行連接 The I/Os in Xilinx® 7 series FPGAs are classified as either high range (HR) or high performance (HP) banks. HR I/O banks can be operated from 1.2V to 3.3V, whereas HP I/O banks are optimized for operation between 1.2V and 1.8V. In circumstances that require an HP 1.8V I/O bank to interface with 2.5V or 3.3V logic, a range of options can be deployed. This application note describes methodologies for interfacing 7 series HP I/O banks with 2.5V and 3.3V systems

標簽： XAPP FPGA Bank 520

上傳時間： 2013-11-19

上傳用戶：yyyyyyyyyy
各種功能的計數器實例（VHDL源代碼）

各種功能的計數器實例（VHDL源代碼）:ENTITY counters IS PORT ( d : IN INTEGER RANGE 0 TO 255; clk : IN BIT; clear : IN BIT; ld : IN BIT; enable : IN BIT; up_down : IN BIT; qa : OUT INTEGER RANGE 0 TO 255; qb : OUT INTEGER RANGE 0 TO 255; qc : OUT INTEGER RANGE 0 TO 255; qd : OUT INTEGER RANGE 0 TO 255; qe : OUT INTEGER RANGE 0 TO 255; qf : OUT INTEGER RANGE 0 TO 255; qg : OUT INTEGER RANGE 0 TO 255; qh : OUT INTEGER RANGE 0 TO 255; qi : OUT INTEGER RANGE 0 TO 255;

標簽： VHDL 計數器源代碼

上傳時間： 2014-11-30

上傳用戶：半熟1994
5位數LCD型顯示表（無電源式）

特點精確度0.1%滿刻度 ±1位數顯示范圍-19999-99999可任意規劃可直接量測直流電流/直流電壓,無需另接輔助電源尺寸小(24x48x50mm),穩定性高分離式端子,配線容易 CE 認證 2.主要規格輔助電源: None 精確度: 0.1% F.S. ±1 digit(1-100%F.S.) 輸入抗阻 : >100Mohm(<2V range) >2Mohm(<2Vrange) < 0.25VA(current ranges) < 1000Vrms(>54V ranges) 最大過載能力: < 150Vrms(<54V ranges)

標簽： LCD 無電源

上傳時間： 2013-10-08

上傳用戶：tiantwo