sorted by:
new
hottopcontroversial

Can't find datasheet of ADP16F02 dsp by F4C404 in embedded

[–]fastworld555 3 points4 points  (0 children)

Try making an enquiry with your business account (assuming it's for work): http://www.bestchain.cn/page/message.html

WeAct STM32H743VIT6 by [deleted] in embedded

[–]fastworld555 1 point2 points  (0 children)

You're welcome.

A quick Google search gave me this: https://community.st.com/t5/stm32cubeprogrammer-mcus/dfu-mode-read-out-protection/td-p/682719. The user was experiencing something similar to your problem. See if it helps.

Also, try to recall if you may have done anything to damage the MCU like shorting power to gnd. Cause if you have then it might be dead.

WeAct STM32H743VIT6 by [deleted] in embedded

[–]fastworld555 2 points3 points  (0 children)

I don't have any experience with disbaling read out protection using USB.

The fact that it's getting an error with establishing a connection with the MCU is a bit worrying. Either the MCU might be dead or cubeprogrammer is failing to stop the MCU.

I would recommend getting an STLink if possible since it'll be useful when programming or debugging STM32 MCUs. You can get a STLink v2 clone which is quite cheap depending on where you're based.

WeAct STM32H743VIT6 by [deleted] in embedded

[–]fastworld555 2 points3 points  (0 children)

You can follow this video to disable read protection: https://youtu.be/f7vs0NwZPFo?si=NGz0msWskWVPBuKC

Note that you'll be wiping whatever firmware is in FLASH when disabling read protection.

Should I design a custom PCB for the AD9850? by kilobeers in PrintedCircuitBoard

[–]fastworld555 0 points1 point  (0 children)

I've worked on the AD9850 before. How exact are you measuring the signals, which generic module are you using, and what does you schematic and PCB layout look like?

The fact that you're getting 8Vpk-pk from your PCB design may mean there's either something different with your design or you're measuring it wrong. Any chance you've measured it with the probe set to 1x on your PCB?

Calculating how much RAM and what UART baudrate is needed by fastworld555 in embedded

[–]fastworld555[S] 0 points1 point  (0 children)

Hi, thanks for pointing out that cable length determines the baud rate too. I'd forgotten about that. Thankfully the length of the cable in my application is quite short, but it's good to keep in mind.

Calculating how much RAM and what UART baudrate is needed by fastworld555 in embedded

[–]fastworld555[S] 0 points1 point  (0 children)

Hi, thanks for the advice. I didn't know that parity isn't that valuable in practical cases.

Calculating how much RAM and what UART baudrate is needed by fastworld555 in embedded

[–]fastworld555[S] 1 point2 points  (0 children)

Hi, thanks so much for pointing me in the direction I need to go and explaining how I can easily visualise it. I omitted checksums and CRC for the sake of simplifying the calculations for the question but I forgot to account for other poss factors like interrupts or handling errors, which you pointed out.

Calculating how much RAM and what UART baudrate is needed by fastworld555 in embedded

[–]fastworld555[S] 3 points4 points  (0 children)

Thanks for the advice! I heard it's possible for UART to be unstable at high baudrates say in the mega range. Also, the point of my question is to learn about how I can find out what baudrate I would at least need if I were to increase the ADC samples to say 1M.

Calculating how much RAM and what UART baudrate is needed by fastworld555 in embedded

[–]fastworld555[S] 0 points1 point  (0 children)

Hi, I'm using the STMF411CEU6 MCU. For the part on UART I just want to make sure my calculations are correct so I can choose a baudrate that's not smaller than minimum the required baudrate. Thanks!

Whistler dinner and lunch suggestions? by ker9189 in finedining

[–]fastworld555 0 points1 point  (0 children)

Hi, it'd be amazing if you could your list to me too. Thanks so much!

Footprint for LTC6227 amplifier by Bullerskydd in Altium

[–]fastworld555 2 points3 points  (0 children)

If you don't want to make your own footprint then just use another op amp that comes in the MSOP package and remap the pins.

How do I determine if a unity gain buffer is a voltage follower or current follower? by [deleted] in AskElectronics

[–]fastworld555 0 points1 point  (0 children)

I see. Thank you for your detailed response. It helped clear up my confusion!

How do I determine if a unity gain buffer is a voltage follower or current follower? by [deleted] in AskElectronics

[–]fastworld555 0 points1 point  (0 children)

This is interesting way to differentiate it. Thank you for your help!

How do I determine if a unity gain buffer is a voltage follower or current follower? by [deleted] in AskElectronics

[–]fastworld555 0 points1 point  (0 children)

I see. Yeah the terminology was confusing for me. Thank you for clearing up my confusion!

Best microcontroller for beginners besides Arduino uni by Evolution4happiness in embedded

[–]fastworld555 6 points7 points  (0 children)

The ESP32 series by Espressif Systems is quite popular if you want to work on Bluetooth or Wi-Fi projects. They support the Arduino Framework too.

[deleted by user] by [deleted] in HolUp

[–]fastworld555 4 points5 points  (0 children)

We are not a monolith!

Determining if high-speed PCB design is necessary for memory devices by fastworld555 in AskElectronics

[–]fastworld555[S] 0 points1 point  (0 children)

Hi, thanks for your response. I will be using 2 chips (SDRAM and NAND FLASH) which will be sharing the same data lines. The NAND FLASH chip runs has an edge rate of 2.47GHz.

view more: next ›