Questions tagged [flow-control]
Flow control is the process of managing the rate of data transmission between two nodes
27 questions
0 votes
1 answer
111 views
Does a consumer switch support pause frames?
I am using a DM9051 10/100M Ethernet controller IC plugged into a Netgear GS308EPP switch. It appears that flow control is not working: If the microcontroller controlling the DM9051 stops receiving, ...
9 votes
7 answers
4k views
Why is there sometimes a resistor just before ground?
In the circuit below, why there is a resistor R2? What would be the difference if it wasn't there? simulate this circuit – Schematic created using CircuitLab I am not in school. This is not ...
0 votes
0 answers
118 views
UART software flow control in ESP32S3 and OTA using cellular modem
I'm using an ESP32S3 chip and trying to implement OTA through a cellular modem. The size of the bin file is 1250KB. The cellular modem has an AT command that downloads all the content in one go. Since ...
-1 votes
1 answer
519 views
Understanding ISO-TP, Flow Control and Blocksize
I am currently trying to understand can communication using the ISO 15765-2 (ISO-TP) and Unified Diagnostic Services (UDS) Protocols using can. At this point I have a question about the Flow Control ...
0 votes
1 answer
2k views
How is USB serial port flow control achieved?
I have a development board which outputs A...Z repeatedly through the USB serial port. Then I created a simple Python script to read from the serial port device ...
-1 votes
1 answer
73 views
How to control gas discharge rate? [closed]
I need to electronically control discharge of very small air volume over a reasonably large period. Something like discharging 33ml over 15 seconds. I have tried a needle prick hole but it discharges ...
0 votes
2 answers
86 views
What keeps voltage/current/power from flowing into "branch two" from the "Vout" node in the below drawing?
I need Vin to go into one of two branches and then continue to Vout, the boxes represent DC-DC converter, one at 20V and another at 15V. What keeps voltage from going through Branch 1 into Vout node ...
0 votes
0 answers
155 views
Control flow rate of a solenoid valve using PWM
I'm hoping to control the flow of chemical by shutting a solenoid valve periodically over short intervals, similar to this video: https://youtu.be/O49mqn33vBI?t=6 Does anyone know if conventional ...
1 vote
2 answers
78 views
Switch current flow from A to B based on C's status [closed]
simulate this circuit – Schematic created using CircuitLab Hello everyone, I want the current to flow from A to B if the switch is pressed. What can I do here? Total newbie here. Thank you. ...
1 vote
1 answer
735 views
Implementing UART flow control in microcontroller
I'm communicating data from my microcontroller (Teensy) to my Bluetooth module (nRFx) which is also a microcontroller that I can program. I use UART to communicate the data I want to send over ...
-3 votes
2 answers
357 views
Question About Current Flow Direction [closed]
I've got a question that has been perplexing me for a while. (Correct me anytime) (Please do not give me any textbook definitions.) Starting with the name of the question itself, I believe current is ...
0 votes
1 answer
213 views
Solution for solenoid valve with can give flow without power? or any other alternative way of it?
I want to use a Solenoid valve for my project, the valve will be used for water in which is facing one problem if there is no power, how can we get water from the valve, I don't want to add any kind ...
9 votes
8 answers
13k views
At what UART baud rate is hardware flow control required?
At low baud rate such as 9600bps, I do not think hardware flow control CTS/RTS is necessary. I believe at higher baud rates, CTS/RTS will be necessary. What is this baud rate? Can one still do without ...
-1 votes
2 answers
602 views
Using Python to control Brooks MFC Power Supply
Is it possible to use Python to control the Brooks 0152/0154 power supply that powers and controls Brooks MFC units? The manual mentions the pin outs of the RS-232 ...
1 vote
2 answers
455 views
VHDL using flow control vs minimization
I am currently designing a mips microcontroller for a class. I am now working on the control unit for the microprocessor and I am wondering if I should use minimization vs using flow control (if, case)...