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Hello All,
I am a software engineer trying to do a parts stress analysis on each of the components on a design I am working on, and I am struggling with a bit of analog electronics.
I have an FPGA (3V3 I/O logic levels) connected to an ADC (connected to a 3V3 supply).
In series between the...
Hi,
I have never heard of it before either.
I am working on a document, and it mentions test by design and not test in "free-running" mode.
Somebody mentioned a flyback with a clock connected is in "free-running" mode?
Does this mean it is in free-running mode?
Thanks ,
Jeff
Hi All,
Just a very general PSU question about what modes a PSU runs in.
Can somebody confirm what "free-Running" mode means? I understand "No Load" and "Under-Load" but i have never heard of "Free-Running"?
Look forward to your replies.
Jeff
Hi,
Thanks for your inputs, I am slowly getting up to speed.
So if i buy an ST development boards, either an NUCLEO-144 or a DISCOVERY board, can i run Linux free rtos on one of these boards. Is Amazon free rtos a Linux operating system that runs on an ARM chip?
Could you get me an example...
Hi again,
Thank you for all your help.
I have another question, when it is mentioned must have ARM rtos linux experience. Does the linux part mean the designer is writing the code on a linux pc instead of a windows pc? What is the big benefit and attraction of writing all the code on a linux...
Hi,
Thanks for your replies. I am currently using windows 10. What free or single user IDE do you recommend when running STM ARM and Amazon Free-RTOS. I am new to this product range so any help gladly accepted.
Thanks,
Rocketman46
Hi,
I have experience of 16bit microchip micros using embedded C, and i am about to move across to ARM RTOS C++. I have narrowed my chip vendors down to NXP and ST. As i am starting from zero on ARM development, could you offer advice on which of the above vendors, is the cheapest and easiest...
Hi,
After lots of testing on the simulator, I can get an output I can use, its not optimum but it works. The only problem I can see is when the input is -5V, the + input on the opamp is in the region of -135mV. To prevent this negative voltage blowing up my opamp and micro ADC port, can i put...
Hi,
This circuit works on the simulator, my results are below. Is this circuit in the correct direction?. I tried the unity gain buffer option but i could not get to function correctly.
* Vin +5V, Vout +5V
* Vin +2.5V, Vout +5V
* Vin 0V, Vout 2.5V
* Vin -2.5V, Vout 0V
* Vin -5V, Vout 0V...
Hi betwixt,
I am really struggling. Nearly all examples are DC examples for attenuation and cannot I find any negative voltage examples. Excluding the maths and values, I cannot understand how a +- 2.5V turns into a 0V to 5V. 0V and above I semi understand but i do not understand this...
Hi,
Thank for your replies.
I tried to generate a circuit with the above parameters. Below are my points and circuit. I am struggling a bit as i am a bit weak on analoge.
1) Selected a dual supply rail-rail opamp TI OPA191IDBVT
2) Shifted the input voltage down by 2.5V
3) Calculated the...
Hi all,
I need a bit of advice on what opamp configuration i should use.
I am using a dual supply opamp -5v and +5v and i require the output to swing between 0v to 5v, whilst the input swings between -5v to +5v. I usually work with opamps with inputs between 0v to 5v, but the +/- input has...
Hi,
I am looking to buy a new bus reader for decoding I2C, SPI, CAN and I/O signals. I have seen two products:
1) Saleae Pro 8
2) Digital Discovery 2
Does anybody have any feedback on these products, or would you recommend using another product?
Look forward to your reply.
Rocketman46.
Hi Klaus,
There is no public datasheet or information, i would happily publish but i cannot. Its a one off module used for racing engines. For designing sake just say 100mA then. I am struggling with the electronics logic as you can clearly see.
Thanks,
Rocketman46
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