Questions tagged [interface]
An interface defines clear boundaries and communication/interconnection between systems.
357
questions
1
vote
1answer
48 views
How to interface MCU with open-collector output?
I have a 3.3VDC microcontroller (based on Nordic nRF52840) with digital inputs which I need to interface to a device that outputs slow pulses (1 second) via an "open collector output".
The ...
0
votes
1answer
46 views
ADC interface to MCU
I have been looking at the ADC ADC12010CIVYX/NOPB 12bit 10MSPS,
(https://www.mouser.in/ProductDetail/Texas-Instruments/ADC12010CIVYX-NOPB?qs=7X5t%252BdzoRHATGLGld5L%2FWA%3D%3D), with a parallel ...
0
votes
1answer
56 views
MIPI Bridge 2.5Gbps or Above [closed]
I was looking for some MIPI bridge solution and mostly found MIPI to LVDS Bridge. But the problem with LVDS is that it can't support more than 1.2Gbps.
I was looking for some solution which can ...
1
vote
2answers
606 views
Help discovering communication protocol used on faulty LCD matrix display
I own a device that has faulty 256 x 64 dot matrix display (flat cable damage + some bug infestation). After a disassembly I discovered that display is connected via 20-pin connect (soldered pins).
I ...
0
votes
1answer
46 views
I2C Level Shifter pull up Calculation
I am using PC9306(https://www.ti.com/product/PCA9306) for one of my project with Vrfe2=5v and Vref1=1.8V.Below is the block diagram.
My CLK is running at 100Khz.
I got the equations for pull up ...
0
votes
0answers
21 views
How to connect a system on module to my customized carrier board
I want to use MYC-Y7Z010/20 CPU Module from MYIR company (http://www.myirtech.com/download/Zynq7000/MYC-Y7Z010_20.pdf), the carrier board for this module consists of interfaces I don't need, including ...
0
votes
0answers
19 views
Will this interface work? HCSL Clock interface
I have an HCSL interface and I want to make sure it will work correctly. The oscillator is a AX3HAF1-125MHZ part and the receiver is the NXP LS1046 device.
The specs for the oscillator are:
Output ...
0
votes
1answer
93 views
Breadboard-type interface to ILI9341 ST7735 TFT display
I have an ILI9341 ST7735 240 x 320px display which I bought intending to use with a 6502 IC. However I cannot find any details online of the basic method of interfacing - all electronics projects seem ...
0
votes
0answers
140 views
Syntax error in SystemVerilog based UVM testbench
I have been getting the following syntax error on compilation-
...
1
vote
1answer
72 views
How to interface to more CSI-2 devices than available CSI-2 modules on MPU?
the problem is:
I have a MPU which has only 2x CSI-2 modules (each with 4 data lanes), however I want connect to 4 other devices over CSI-2 interface (each device has one CSI-2 module).
So the ...
0
votes
0answers
26 views
Need to see if I calculated Digital Logic Levels Correctly for Interface
I am trying to see if I calculated the correct current values for the following interfaces.
The first interface shows no margin at Voh-Vih as they are identical, but the LS1046 was tested at IOH=.5mA ...
0
votes
1answer
44 views
Need help to understand optocoupler datasheet
I am experimenting with AC optocoupler (SFH628A-4) to sense AC voltage(240 VAC) in a circuit. As per the data sheet (https://www.mouser.in/datasheet/2/427/sfh628a-1767413.pdf), the absolute maximum ...
0
votes
1answer
56 views
Gigabit Ethernet: capacitor isolation (1st device) - transformer isoaltion (2nd device) will it work?
I am designing an adapter board for a camera which is an original device with Gigabit Ethernet interface.
The previous version of the adapter board was using LAN7500 and transformer as a USB dongle ...
1
vote
1answer
121 views
USB Communication
is it safe to add LEDs with D+ and D- line communication?
I did this schematic(attached) and the communication does not work.
where is the problem?
0
votes
1answer
175 views
I2C Level translator 5 V to 1.8 V using MOSFET, output look weird
I am designing an I2C level translator using MOSFET. I am using BSS138 DATA SHEET. My clock can go up to 1 MHz. The output is not coming properly for fast mode plus (CLK = 1 MHz, RISE TIME = FALL TIME ...
1
vote
1answer
58 views
Do i need additional IOs for this interface board?
I am designing a UI PCB which has an MCU which will interface with a main system controller (MSC) on a separate PCB.
The UI PCB provides an initial power up to the MSC which then boots up its onboard ...
3
votes
4answers
733 views
Is there a way I can convert from USB to LVDS UART (~1Mbps)? [closed]
I'm working on a spacecraft that requires very low noise levels so it was requested that we pursue LVDS UART. So it's using something similar to RS-422 because it's differential, but instead of a ...
24
votes
11answers
7k views
Why did USB win out over parallel interfaces? [closed]
What were the technical reason(s) USB massively overtook parallel interfaces such as SCSI, IEEE-488, and enhanced parallel ports? I understand the hardware can be simpler with just one data line ...
0
votes
0answers
228 views
Add 5V bias power to use an electret microphone with XLR audio interface
I recently acquired an audio interface (Behringer UMC22) and, since it's quite a bit better than my motherboard, I'd like to connect my modmic 4 to the XLR mic input. The interface has phantom power ...
2
votes
1answer
243 views
How is Chassis ground connection implemented for an input cable with TVS diode protection?
I believe my question is different enough in specifics to Is it better to connect ESD (TVS) Diodes to chassis ground or signal ground? to warrant a new question.
According to Electromagnetic ...
0
votes
2answers
81 views
Reconstruction of differential signal
I have a differential signal which will be transmitted from a system (transmits and receives the data through 2 wires only, there is no GND wire).The differential signal has 3 voltage levels -12V , 0V ...
-2
votes
1answer
229 views
How does signal aggregation work? [closed]
I just wanna know how signal aggregation works.
For example, there is an IC which can aggregate more than two interfaces(I2C, SPI .etc).
Thanks.
1
vote
1answer
197 views
Programming an LCD interface with a ST7066U
I am trying to program an interface between my 2x16 LCD and my MSP430FR6989.
The LCD communicates parallelly with the MPU (E RS EW D7 -- D0), and it uses an ST7066U controller IC.
from reading the ...
-1
votes
1answer
68 views
Efficient understanding of Hardware Software Interface in Embedded
I am a budding engineer in the embedded field. My work involves both the circuit design and software development of microcontrollers. So, I need to understand how the software is working on ...
1
vote
1answer
432 views
How to configure the I2C of the MSP430
I have an MSP430FR6989 development board (MSP-EXP430FR6989).
I would like to program it to communicate with a MAX30102 Pulse Oximeter and Heart Rate IC, the interface is done through I2C protocol.
I ...
6
votes
1answer
91 views
Ham Transceiver to computer Interface design question
I am building a Ham transceiver to computer interface, which has the RS232 port controlling the PTT on the radio. The circuit currently calls out for a 1.2K resistor in series with the RTS line and ...
1
vote
1answer
49 views
Write into external registers from FPGA
I want to initialise a register of an external component with a FPGA. The data is latched by the external component at every falling edge of the clock signal.
You can see in the diagram that the SDATA ...
0
votes
1answer
118 views
"smart" label on home gadgets package and mcu [closed]
Are any home gadget that is written "smart" on the packaging, capable to interact with a microcontroller through some protocol or "smart" label is just another marketing ploy?
0
votes
0answers
121 views
Connection Ethernet MACs without using a PHY device
I am designing a board that utilizes an NXP LS1046a processor and multiple Kintex Ultrascale FPGAs. The plan is to connect the processors up to the three FPGAs via the 1Gbe links.
Since they are all ...
2
votes
1answer
277 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
2k 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
580 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
82 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
141 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
33 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
309 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
196 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
42 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
2answers
89 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
60 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
107 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
118 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
48 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-...
1
vote
0answers
59 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
59 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
151 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
564 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
352 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 ...
3
votes
1answer
108 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 ...
3
votes
3answers
630 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, ...
