Questions tagged [interface]
An interface defines clear boundaries and communication/interconnection between systems.
335
questions
2
votes
1answer
236 views
Understand an I2C clock line implementation
I am trying to understand a C function from a legacy project which is supposed to manage the clock line for an I2C interface. It basically does as follow:
Set pin to output: ...
1
vote
2answers
43 views
How to interface MIPI DSI with a microcontroller
I'd like to learn about interfacing a TFT LCD with a microcontroller via the MIPI DSI protocol and writing a program for it.
Both have suitable number of pins, some microcontrollers support MIPI DSI ...
4
votes
2answers
558 views
Effects of test patterns
If I have an 8-bit high-speed interface say at 1GHz talking to memory and I want to do interface testing, I can send patterns like AA/55/00/FF.
When I send a pattern like 55 i.e 01010101, every even ...
2
votes
0answers
62 views
Passive Level Shifter Needed - LVCMOS 3.3
The device that will be driving another device claims it is LVCMOS 3.3V but it doesn't appear to be. Here are the voltage levels of both parts:
VoH(min)= 2.3V
VoL(max)=0.8V
ViH(min) = 2.0V
ViL(max) = ...
1
vote
2answers
84 views
LVDS Termination - Not sure what it accomplishes
I am looking at the following schematic where there is an LVDS to LVDS connection. The common mode and swing are a little different between the output and the input.
I am use to seeing 100 ohm ...
0
votes
2answers
28 views
LCD1602 not displaying any characters
I've connected an Arduino with a LCD1602. I've followed this exact tutorial:
Link to the tutorial
Whenever I see my LCD at a right angle (upfront) I can't see anything. But whenever I see my screen ...
0
votes
2answers
41 views
Interfacing SD card (SDSC) with Arduino Mega 2560 without SD module
I have just got into the idea of storing multiple scripts in an SD card, and using a custom driver written to the board to execute those scripts on demand.
I have a 2GB SD card, and an Arduino Mega ...
1
vote
1answer
41 views
SGMII Termination - Not understanding recommendation
I am going to be using a processor that has a few SGMII interfaces. From what I understand, these interfaces have LVDS logic levels. I am not use to seeing the termination scheme as recommended below.
...
0
votes
1answer
23 views
SDI-12 voltage translator buffer
I want to implement an SDI-12 interface and I found this schematic online. The author says that the buffer translates the 3.3V voltage from the microcontroller to 5V for the SDI-12 line.
However, the ...
1
vote
1answer
54 views
can I repair part fried socket
As image shows the power socket is fried, is there a method to repair it?
BTW this is only the fried 4 pins is for +12v and the ground, one +12v still ok but don't know if it enough.
0
votes
1answer
36 views
Android Tablet Side Connector Interface Information [closed]
I'm not sure if this is on topic or not, but I'm trying to find out about the interface found on the side of some Android devices. An example can be found by side of the "pipo n2" device. It ...
0
votes
1answer
31 views
How to interface IO Link devices without any gateway/additional circuit
I am planning to use a distance sensing device like this distance sensor with a mini computer like the Raspberry Pi or the Jetson boards. I read that the interfacing requires additional gateway like ...
1
vote
0answers
73 views
LVDS Interface - Output Max Swing is Higher than Max Input Swing
I am connecting together two "LVDS" devices. The specs are as follows:
Output: VoDiff = 247-600 mV, Vcm = 1-1.485 (1.25 typ)
Input: VinDiff = 100-500 mV, Vcm = 1-1.6 (1.25 typ)
So for the ...
1
vote
1answer
27 views
Interfacing 20x4 character LCD with LPC54628
This is the very first time I am dealing with the task of hardware interfacing.
I needed to interface a 20x4 character LCD with an LPC54628 microcontroller.
I am using https://www.sunrom.com/p/20x4-...
0
votes
0answers
26 views
Does libusb_bulk_transfer add CRC?
0
I'm writing a user interface program for USB device in C++ using Visual Studio 2019. I'm using libusb library. I want to do bulk transfer to the device, and I'm trying to understand the exact ...
1
vote
2answers
51 views
Are USB and/or Ethernet payload agnostic?
I'm working on a project in which I'm trying to reduce the number of conductors in a high-bandwidth, multi-signal communication interface that requires a fiber connection for isolation and a back ...
0
votes
2answers
135 views
How can I tell if my banana fits in the banana hole?
Are all banana plugs the same? Can I use these Fluke brand banana plugs and plug them in to this Extech brand phase rotation tester? Will they fit?
What defines banana plugs anyway? Is there an ISO ...
0
votes
2answers
114 views
Rinnai water heater power and communication interface/protocol
My Rinnai tankless water heater can be connected to a wifi module that controls the recirculating pump and other functions.
The only connection between the PCB of the water heater and the external ...
1
vote
1answer
43 views
Difference between LVDS SerDes and FPD-Link III SerDes?
I'm new to the world of video interfaces and am working on a project in which parallelized video stream data is transmitted and subsequently received by processing components on the other end of an ...
0
votes
0answers
24 views
Checking CAN Bus load in Vector interfaces
Are there any other ways to check CAN bus load via CANlyzer (other than Statistic window) or CANoe?
0
votes
0answers
44 views
Door Phone / Intercom interface to arduino and power from dc bias?
This is my very first post on a challenge I have been struggling with for a year. How can I build a extender to my door phone (Brand Fermax) while protecting the inputs on the arduino and avoiding ...
3
votes
1answer
73 views
Is it safe to bundle together 380V cable + 24V signal cable + network cable?
I have the following cables between two machines:
380V 3-phase power cable
24V signal cable
EtherCAT cable
I would like to create an interface using a modular connector such as the one in the ...
1
vote
3answers
106 views
16-bit Byte-Addressable RAM Interface
I am a beginner to computer engineering and electrical engineering, and I have watched the entirety of Ben Eater's 8 bit breadboard computer series so I decided that because I understood that well, ...
0
votes
2answers
78 views
How to properly interface button switches meters away from the host
I plan to place some buttons at about 50 meters (roundtrip) away from the host and I'm not sure if I'm doing it correctly.
The I/O reading the signal will be from an MCP23S17 16bit GPIO expansion IC ...
0
votes
1answer
19 views
GSM SIM800C not responding
I'm using
Arduino IDE software
Arduino Uno board
GSM SIM800C
BSNL 4g SIM card
Interfacing
RX (of GSM) to PIN 2 (of Arduino)
TX (of GSM) to PIN 3 (of Arduino)
GND to GND
Power supply
For Arduino - ...
0
votes
0answers
22 views
Can One hook up several displays on the same RGB parallel interface?
I am working with a 800*480 24-bit parallel RGB LCD display. The required clock for the RGB interface has to be between 23 and 27 MHz (typ. 25 MHz).
For testing purposes, I need to display "...
0
votes
1answer
114 views
I2S audio interface - sync of MCLK and LRCLK signals
I plan to use IC AK4430, an I2S digital interface sound output chip, to be connecte to an ESP-07 Wifi module via 3 wires (BITclk, LRclk and DATA). But the IC also require an input signal that they ...
0
votes
1answer
41 views
Battery powered 4-20mA sensing application
I have a base system that runs on 3-AA batteries which it regulates to a system voltage of 3.3V. I want to interface that system to measure a 4-20mA sensor. For the sake of argument, lets say that ...
1
vote
0answers
20 views
What is the advantage of having multiple remote terminal (RTs) in 1553B terminal?
I have been trying to understand the difference between 1553B terminals with single and dual Remote Terminals (RTs). I have given 2 links below for the references:
link 1: Single RT
link 2: Dual RT
...
0
votes
0answers
64 views
Which chip or module could I use to replace MCP23017 I2C expansion chip to avoid using I2C as communications bus as it has interferance issues
Currently I'm using an Odroid C1 (It's like a Raspberry 3 more or less) and 4 MCP23017 expansion chips to increase the input/output pins. It gives me 64 additional pins that I use for a domotics ...
2
votes
1answer
46 views
Help on translating 5V rotary signal output to interface with lathe's cnc controller!
I have a hall sensor (OH137 - open collector) as an index signal on my lathe’s spindle. I have the sensor pulled high by a 1k resistor and can’t change it because they’re both glued in epoxy.
This ...
0
votes
1answer
75 views
DPI interface for Raspberry pi including backlight driver
I am designing a DPI interface for my Raspberry Pi ZeroW.
I believe the screen I have is exactly the same as the Pimoroni Hyperpixel 4.0 Square, just without the chunky interface PCB:
https://shop....
0
votes
0answers
67 views
Does anyone recognize this debug connector?
I'm looking at a board with this debug interface and I would like to know what it is so I can consider it in future designs. The scale below is 1 mm gradient.
It looks like something off the shelf ...
1
vote
0answers
34 views
What display interfaces do automotive screens use?
For example the screens inside tesla cars, I first think of HDMI, many high end embedded processor boards come with HDMI outputs, but is this connector found in actual mass production or industrial ...
0
votes
1answer
40 views
What is the purpose of having two type of output interfaces on this ADC?
The ADS4126 comes with a Double Data Rate (DDR) LVDS output interface and a
I have following questions:
What criteria is used to decide which one of the two to use?
Can both be used to read the ADC ...
1
vote
0answers
38 views
How to access Realtek SMI interface without a dedicated processor?
I'm working with Realtek's RTL8367 switch IC.
Background: I am having trouble with throughput being unbalanced. If I run iperf between two ports in one direction I get a different throughput if I ...
0
votes
1answer
25 views
Where can I Find the Memory map and register table for the S70FL01GS
I am currently working with this device:
https://www.mouser.com/datasheet/2/100/001-98295_S70FL01GS_1_Gbit_128_Mbyte_3.0V_SPI_Flas-1102682.pdf
The datasheet provides some high-level details about ...
1
vote
1answer
105 views
Bad results from using Lattice FPGA Interface to capture ADC data
Im trying to capture DDR data from ADS5463 (TI ADC).
As the datasheet suggested I need to delay the clock and sample the data with DRY clock. Im using Lattice FPGA LFE3-35EA.. and using Lattice High ...
0
votes
4answers
130 views
getting access to more UARTs on micro controllers
I will need to interface a micro controller to some breakout boards that only talk through UARTs, so confronted with the eternal 'need more hardware UARTs' problem.
I have seen 2 kind of solutions ...
0
votes
1answer
53 views
Questions about Interfacing ADC: ADS5463 with FPGA
Im beginner FPGA Designer.
I need to interface the ADC component: ADS5463.
datasheet: http://www.ti.com/lit/ds/symlink/ads5463.pdf
with a FPGA (lattice ecp3).
I need suggestions how to start ...
2
votes
1answer
128 views
What factors does the set-up time and Hold-time for an interface IC depend on?
I am working with EEPROM and QSPI Flash ICs. They have this electrical parameter called as Setup time and Hold time. I know we must not violate this in order for proper communication.
But my question ...
0
votes
2answers
67 views
Project with smart phone like camera
I have an idea for a DIY electronics project which involves a camera where I want the camera to be small.
I thought may be to get a camera component similar to the ones used in smart phones. But my ...
0
votes
1answer
82 views
Usage of 74LVC1T45 in open-drain case
I want to do one 'universal' or 'multiprotocol'-capable IO block and currently thinking of using 74LVC1T45 level translator to do the communication between two different voltage leveled systems.
I ...
0
votes
0answers
22 views
How to connect ADF4153 modem oscillator serially with PC without using SDP board?
I tried to connect ADF4153 modem oscillator with PC using STC15W4K56S4 that I bought from Aliexpress.
My PC is reading the modem but the program is not, so I am trying to connect the ADF4153 ...
0
votes
1answer
247 views
What exactly do D+ and D- on a USB connection do? [closed]
Of the four pins on the usb I know the power and the ground pins are used to supply power to a USB device. But the other two ...
0
votes
1answer
61 views
best practices in detecting relay contacts status
Currently i'm experimenting with 12VDC energy meters latching relays and at least for me the feature of detecting status of contacts ( required by some clients ) which is built in as in the diagram ...
2
votes
2answers
83 views
What is “high voltage programming”, and why do some MCUs use it?
This article on sub-10 cent MCUs mentions that many of them use a high voltage programming interface. What is this, and why would a product use it over a "regular" 5V or 3.3V programming interface?
0
votes
1answer
127 views
Design an interfacing circuit/address decoding circuit to interface one 4KB EPROM and two 2KB R/W memory for 8085 microprocessor?
I don't know if this question is a good question to get answers or not but I am trying to honestly explain my situation.
I am studying 8085 microprocessor, so I am stumbled upon address decoding ...
0
votes
1answer
30 views
Is this way of sizing the load correct for this PNP output sensor?
A proximity sensor has the following specs:
It is PNP output and the specs say 100mA at 30VDC.
Does that mean the resistor/load between the sensor's PNP output and the GND should be more than 30V/...
12
votes
3answers
2k views
Is using the CH340G on a commercial product a horrible idea? [closed]
I'm developing a niche product that will be produced at a fairly low volume (low hundreds). I'm using an Atmega uC, and one of the requirements is the ability to be field-flashable by the user. My ...
