Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [data-transfer]

20 questions
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Why interfaces and buses gets faster with every version if they are physically the same?

An interface or computer expansion bus gets faster with every version eg. PCI express 1.0 is 4GB/sm, PCI express 2.0 is 8GB/s, PCI express 3.0 is 16GB/s. I understand that things like microprocessors get faster because newer ones are manufactured in…
nhgtygbg
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1 answer

Transferring arbitrary data via Bluetooth Smart (BLE) with nRF51

I was wondering if it was possible to send arbitrary packets of data over a Bluetooth Smart (Low Energy, 4.0) link from a nRF51 (Nordic Semi, BLE compliant SoC) to a phone? Also if you don't know the specific device, any help is appreciated as all I…
JJJ
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FT232H FIFO slow USB?

So, I have an FT232H chip, specifically this breakout. I'm trying to read data as fast as possible from it, so I've set it to synchronous 245 FIFO mode, which the datasheet says should yield up to 40 Mbytes/s. I've wired AC3 = WR# to ground, on the…
Erhannis
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2 answers

Weak edges over SPI data lines

I am developing a driver for an SPI temperature sensor, and having some trouble with poor quality edges near the end of packet on the data lines. While I am not experiencing any data loss, I am worried this is evidence of a larger issue; any…
stmfunk
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Why is asynchronous data transfer only suitable for slow devices?

I have read that asynchronous data transfer is wasteful of CPU time for slow devices like keyboard or mouse. Then how is it possible that it is suitable only for slow devices like keyboard or mouse for which the data transfer speeds are…
Anshul Gupta
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Average data transfer rate

I am learning computer architecture and organization I am stuck in the following question. Consider a hard disk with sector size 1024 bytes, 5000 tracks per surface, 64 sectors per track, and 8 surfaces. If the disk platter rotates at 10,000 rpm,…
Anshul Gupta
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SPI between MCUs

As a newcomer to PIC programming, I am looking for some thoughts on how to implement SPI between a master and slave MCU the most efficient way. The purpose of this system is to provide an extremely flexible way to 'map' up to 32 individual output…
Peterstevens
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STM32: Saving 50Mbit/s data in sdram or sd card

Could STM32f429 save image data to sdram or sd card? Camera module outputs its data at a data rate of 50Mbit/s via 8 parallel ports. What I want to do is to save this data into the SDRAM or SD card as a file. It doesn't have to be sequence of files,…
SD11
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Accessing, processing and transmitting data from a simple digital device (a measuring wheel) to Android phone

Firstly, I have no electronic experience, so I don't know if the below is practical, or what hardware and software would be required to make it happen. Basically I would like to transmit the value shown on a basic digital measuring wheel, in real…
TameAim
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What is the correct way to calculate throughput for a part of digital circuit design? (I)

I am trying to understand the correct way to calculate throughput of a digital hardware design block that forms part of a bigger system. Here are the few scenarios: DUT takes 10 clock cycles to generate 20 bit output, then another 10 clock cycles…
quantum231
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Send image using RPI to phone using Bluetooth

I'm looking to send an image file from a RPI Zero (or RPI4) to a mobile phone. The image file will be sent after pressing a push-button. The connection between the RPI and the phone is only Bluetooth (no internet or cellular data connection). The…
Gal Magen
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Using ethernet PHY building blocks PAM/PCS

This is a more theoretical question. Is it possible to use internal building blocks of an Ethernet PHY directly and without typical Ethernet framing? I am looking for a way to have access to the internal PAM/PCS structures (twisted pair) to use it…
ARi
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Which data transfer speed (connection protocol) do I need?

I have 124 sensors that sense analog signals ranging from DC to 25 kHz. Analog data is converted to digital with a resolution of 16 bits. The ADC I am using is the AD7656 with a data rate of 250 kSPS, simultaneously converting 6 analog inputs, I…
Fateme
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Data transfer FPGA To PC via UART

I have implemented a TDC and an 8-bit encoder in my Artix-7 FPGA board and I want to transfer this data from FPGA to PC via UART protocol! I don't know if I should save this data in FIFO memory or BRAM memory and then apply uart protocol or if block…
usereyi
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What are the possible strategies to transfer data from an FPGA accelerator to a hard-core CPU?

I am beginning with FPGAs and I am working on an accelerator that acquires data from a microphone (Pulse Density Modulation) and extracts a single frequency from the signal. My accelerator is basically a digital filter, that multiplies each audio…
leopicchio
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