Others: hardware and software

Discuss hardware and software design challenges, including NOR flash storage, OTA updates, component ID, and thermal management.

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Resolved! STM32H723ZG + DS8500 HART Modem → OCD pin always LOW (No Carrier) when interfacing with 2088 Pressure Transmitter

I am working on establishing HART communication using an STM32H723ZG Nucleo board, a Maxim DS8500 HART modem, and a 2088 Pressure Transmitter (4–20 mA + HART). Hardware Setup: STM32H723ZG USART3 → Debug to PC (115200, 8N1, no parity) USART6 → Conn...

Resolved! Is the LM311DT rail-to-rail?

As per subject, is the ST LM311DT rail-to-rail? Farnell claims that it is, but that's the only place that says it is, I can't find a definitive statement in the datasheet.(I have used the TI LM311, and that is not rail-to-rail. I need to handle input...

AndrewIC by Associate
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  • 2 replies
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Resolved! Blue pill blink external LED

I used the settings and code below for a simple project: Blink an external DIP LED using the blue pill:In Pinout & Configuration:- PA5 => GPIO_Output- user label: LEDThe wire connections (like screenshot below):PA5 pin => Resistor => Long leg (anode)...

photo_2025-08-09_11-19-55.jpg
TechyAry by Associate III
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  • 8 replies
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Resolved! STEVAL-DPSTPFC1

hi,I start to use STM mcu to develop power electronic circuit and software , I find the following stuff " STEVAL-DPSTPFC1 3.6 kW PFC totem pole with inrush ......."   is the best reference design to me for learning ,  would you please deliver its sch...

bobjeng by Associate
  • 359 Views
  • 3 replies
  • 1 kudos

LED with RX TX

I am using ST3232CTR with stm32f446re . I want to attach LED with either pin 13, 14 or Pin 11 , 12 of ST3232CTR. Like FTDI , if we have serial communication it will blink. But I need recommendation of schematic diagram or how to attach.   Can anyone ...

Ironman by Associate II
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  • 1 replies
  • 0 kudos