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MAX31856 connection problem

Hello,Have a Chinese version CJMCU-31856 with MAX31856 chip on board. Trying to establish connection, data transmit and read temperature from this chip with STM32F407VE using SPI2 port.But no successful yet. I cannot read any data or transfer any dat...

IMaji by Associate II
  • 1381 Views
  • 5 replies
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Advice Request - Application Profiling (STM32F7)

High level: I'm looking to improve the performance of our application and I need to work out which methods are consuming CPU time.We have an application using NuttX as our RTOS running on STM32F777. The application is compiled with GCC using the Nut...

Nevyn by Associate II
  • 1034 Views
  • 6 replies
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Are init() and Serial.flush() required in main()?

This page says:With a custom main() on Arduino:Call init() if you want to use things like millis(), micros(), and delay(), because that is where the hardware timers get initialized. This will also affect analogRead(), analogWrite(), and a few other t...

The BOOM by Associate III
  • 377 Views
  • 1 replies
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How to read and write values to EEPROM IC (24C16 IC)

HI, i want to read and write values to EEPROM 24C16 IC using stm32f103 . I am able to write the value but i am not able to read the values . And how can i check whether i have written value to my eeprom ic and how to read value. can anyone help...

Lchal.1 by Associate II
  • 1654 Views
  • 6 replies
  • 0 kudos

sd card interface

hello,in my application ill use an sd card, therefore im planning to use the internal sd card controller the stm32h743 suggested.i have some questions, hope you could answer.why the EVB uses a dedicated level shifter for sd card, cant you use simple ...

Pkats.1 by Associate II
  • 321 Views
  • 0 replies
  • 0 kudos

modbus with RS_485 communication

HI, i am using RS_485 as a serial communicator with modbus in stm32f103. But i am confused with TXEN pin used in Rs_485. i have read information it is used as transmitter and receiver . when transmitting the pin is set to high . while receiving...

Lchal.1 by Associate II
  • 2772 Views
  • 3 replies
  • 1 kudos