prepaid vcc

. As an input state, an error occurs when the Nstatus is pulled down externally during configuration and initialization. (during initialization and configuration, this call is in the input state, do not pull down!) ）Pin: Total 1, 17.TCK:Type: InputFunction: Jtag dedicated input pin, the TCK is connected to the ground, JTAG circuit is forbidden.Pin: Total 1, 27.Tms:Type: InputFunction: Jtag dedicated input pin, the TMS connected to VCC (+ 3.3v), Jtag c

Yesterday made the control led, played the first, the rest of the feeling is very simple, here recordJust a couple of photos.Play the honey module only to find the law, generally this module, there will be three pins, VCC (3.3V or 5V power supply output PIN), GNC (for Gpio pin of GNC), out/(I/O) (corresponding to the gpio number of pins), if it is necessary to send information to the Raspberry Pi, This module identifies the out, such as the sound sens

with msp430g2553 control 1602 LCD display time , and can set the time by pressing the button, I do the two modes of timing and Countdown/*********************************************************************msp430g2553 and 1602-pin connection conditions* PIN1-to-ground* PIN2-to-VCC (must be picked up)* PIN3-----when the simulation is floating, the actual circuit 2K resistor--------------ground (resistance can be 500-2k, changing the resistance can chan

RS485Table 1 pin assignment at the RS-232 end Db9female (PIN) RS-232C interface Signal 1 Protected land 2 Receive Data sin (RXD) 3 Send data Sout (TXD) 4 Data Terminal Preparation DTR 5 Signal Ground GND 6 Data Device Preparation DSR 7 Request to send RTS 8 Clear Send CTS 9 Bell Indicator R1 Table 2

devices, that is, all the hardware for ide to pcmcia. I actually use two card readers, I had a very old Card reader Sony Memory Stick/PC Card Adaptor MSAC-PC2. Only memory stick is supported. This clip is older, and it is what makes me sad on the plane. now let's analyze the cause of the problem. Before analyzing the cause, we will introduce the main debugging methods of pcmcia. Cardctl is the most important debugging and control tool for pcmcia. You can view the recognition information, status

This period of time in the company debugging a DSP development Board, using the AM29LV160B chip, this chip has two read-write mode (8-bit or 16-bit mode), burning write Flash is found to be very slow, probably burn write 1k will be 2 minutes, it is more slowly than the turtle climbed, This problem bothered me for more than half a month, and then finally found out the cause of the problem in an accidental time:In Flash (am29lv160b) There is a signal is the ry/by# signal, he is a response signal (

circuit design we often encounter the concept of open drain (open collector) and open set (open).The "leak" referred to in the concept of the open-drain circuit refers to the drain of the MOSFET. Similarly, the "set" in the open collector Circuit refers to the collector of the transistor. The open-drain circuit refers to a circuit with a very high output of the MOSFET leakage. The general usage is to add a pull-up resistor to the circuit outside the drain. The complete open-drain circuit should

1. Schematic diagram 2. 51 Single Chip Microcomputer P0 port, a bit circuit diagram 3. Explanation Under normal circumstances, the I/O of the key is pulled to VCC by a 10 k resistor. At this time, the input resistor of the input buffer is very large and the input impedance is in the M/O level, so the I/O potential is high, the potential is naturally high. Press the key, Io is grounded, and there is almost no pressure drop in the wire close to

Flash Boot boot.imgConnect the J8 pin on the Dragonboard 410c to the PCA9306 sensorConnect as follows:PIN #37?? VREF2 of PCA9306?? VCC of Grove Light sensorPIN #39?? " -"On Bread BoardPIN #35?? VREF1 of PCA9306PIN #15 (I2C0_SCL)?? SCL1 of PCA9306PIN #17 (I2C0_SDA)?? SDA1 of PCA9306PCA9306 GND to '-' on Bread BoardVREF2 of PCA9306?? VCC of Digital Light SensorSCL2 of PCA9306?? SCL of Digital Light SensorSDA

We have explained in detail the Raspberry Pi control ultrasonic module ranging (http://www.cnblogs.com/yuemo/p/8888342.html) and ultrasonic control buzzer module audible (http://www.cnblogs.com/ yuemo/p/8906111.html).Today we'll see how to apply all two modules and make an anti-theft device.First look at the connection of each pin (requires seven mother-to-female DuPont line):Ultrasonic module:1.VCC: Connect 5V power supply (pin 1th)2.Trig: Output por

/!svn/vcc/default HTtP/1.1 " 207 401172.16.119.8-admin [15/aug/2011:18:17:50 +0800] "Propfind/svn/eagle/!svn/bln/31 http/1.1" 207 454172.16.119.8- admin [15/aug/2011:18:17:50 +0800] "Propfind/svn/eagle http/1.1" 207 649172.16.119.8-admin [15/aug/2011:18:17:50 +0800 ] "Propfind/svn/eagle/!svn/vcc/default http/1.1" 207 454 "" "pattern = Re.compile (R ' (? i) http/.+?\b[^\d]+? ( [2345]\d{2}) ', Re. Dotall) re

long as the pin is connected, it can be adapted. Connect the following pins with the DuPont line 22: Mosi,vcc,rst,sck,miso,gnd.Unfortunately, due to the Arduino IDE's "high-end Air international", it does not recognize this modified firmware of the "Chinese characteristics" usbasp download line, the conventional method can not be burned at all, display the error "could not find USB device" usbasp "" "Avrdude:stk500_getsync (): Not in sync:resp=0x00",

so on, in the price difference is not large, generally try to choose a higher number of memory frequency. RELATED links: What do you think of computer memory? How to see the memory good or bad Three, look at the memory work A memory mainly through the quality of work to judge, the first is to see the size of the PCB board, color and thickness of the plate. The memory is generally four layer board, six layer board or eight layer board, will affect the performance ability. For example four boa

: the power supply cathode (the wiring is labeled as: +5v or VCC), white line, negative voltage data line (labeled: data-or Usbport), green lines: Positive voltage data line (identified as: 10 or Usbport +), black line: grounding (identified as: Ground or GND). Some chassis manufacturers, based on their own process design requirements, the color of the signal line will not be introduced with the above, and take into account with the motherboard wiring

difficult to learn a technology to everyone to do a simple introduction, a lot of friends ask us to understand the U disk (USB) data recovery methods, The following summary of the method to be introduced to meet the lack of professional data recovery equipment maintenance personnel Reference: Many people have encountered the request for data recovery customers, but they do not have a clear method, the following case on the U disk (USB) data recovery of the specific methods to explain: Case one

difficult to learn a technology to everyone to do a simple introduction, a lot of friends ask us to understand the U disk (USB) data recovery methods, The following summary of the method to be introduced to meet the lack of professional data recovery equipment maintenance personnel Reference: Many people have encountered the request for data recovery customers, but they do not have a clear method, the following case on the U disk (USB) data recovery of the specific methods to explain: Case one

Let's talk about the various modules of the Smart car first: 1. Motor Drive 2. Tracing sensor It has four pins, namely: VCC GND D0 A0, we only need three pins, AO does not need to be used. General Smart Car We are installed two, left one on the right. Principle: 1. The use of black for light reflectivity of this feature, when the color of the plane is not black, the reflector emitted by the infrared light is mostly reflected back. The sensor outputs

form has several features: 1, the use of external circuit drive capability, reduce the internal drive IC. When the IC internal MOSFET is on, the drive current flows from the external VCC through the pull-up resistor, MOSFET to GND. Only a small gate drive current is required inside the IC. 2, generally, the open-drain is used to connect different levels of the device, matching the level with, because the open-drain pin is not connected to the extern

First, the chip pin definition and role 31:blank when BLANK was high and all outn outputs was forced OFF. GS counter is also reset. When BLANK was low, OUTN was controlled by the grayscale PWM control. 24:GSCLK Reference clock for grayscale PWM control (square wave provided by TIME3) 1:SCLK Serial Data Shift Clock (provides transport SCLK for the write of Sin) 2:sin Serial Data input (high write to 1 low write is 0) 23:sout Serial Data output 3:mode Input mode-change pin. When mode = GND, the d

table below): The ultrasonic module has a total of 4 pins, VCC, GND, Trig, and Echo respectively. The VCC pin of the Turnipbit expansion board is connected to the GND pin of the Turnipbit expansion board, and the Trig trigger pin is connected to the P5,echo backhaul pin P8. l298n Motor Drive Module The left OUT3 and OUT4 terminals correspond to the lower side of the revolver motor, the upper side of the co