Interface and connectivity ICs

Ask questions and find answers on connectivity ICs, focusing on protocols and I2C challenges on STM32 Nucleo boards and BlueNRG products.

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Forum Posts

Resolved! ST4SIM-300M Getting the same ICCID

Hi! We have two custom boards that we have soldered the ST4SIM-300M eSim to. We have earlier been using the ST4SIM-200M and followed this activiation procedure:https://www.st.com/resource/en/application_note/an5740-st4sim-with-truphone-connectivity--...

mackzswe by Associate
  • 347 Views
  • 5 replies
  • 2 kudos

Resolved! Unable to bring up ST67

Hi,1. [Part Number] STM32H7R7I8T6 2. [Environment] x-cube-st67 1.2 version and latest cube IDE.3. [Schematics] If it is a custom board --> Share the schematics using “Attach file” option or inserting some image.4. [Details] I am using STM32H7R7I8T6 M...

JohnWick1 by Associate II
  • 558 Views
  • 10 replies
  • 5 kudos

Resolved! S2-LP PERS_RX - what does it do?

The function of the PERS_RX flag in PROTOCOL 0 is described as: '1: enable the persistent RX mode.' What does that actually mean/do? I couldn't see any explanations in the rev. 13 data sheet for the S2-LP. 

kzkaram by Associate II
  • 226 Views
  • 4 replies
  • 1 kudos

BlueNRG-1 Driver for SSD1306

Hi, Here i post a driver for SSD1306 128X64 Oled Display. You must enable I2C configuration void I2C_ConfigurationMaster(void) { GPIO_InitType GPIO_InitStructure; I2C_InitType I2C_InitStruct; /* Enable I2C and GPIO clocks */ if ((I2C_Type*) SDK_...

Diltech by Associate II
  • 96 Views
  • 0 replies
  • 0 kudos

BlueNRG-1 and delay_ms() for OneWire read

Hi all,I'm trying to create a project to read a temperature sound like a DS18B20. The problem is that I need a precise and stable delay time. Using Systick isn't possible because there's a conflict when using BLE. I tried using an MFT, but I can't cr...

Diltech by Associate II
  • 171 Views
  • 3 replies
  • 0 kudos

ST87M01 mqtt topic and message

On ST87M01 current version 2.7.0 I suspect that everything that goes in module via "AT" interface passes through filter which removes spaces and sets everything lowercase. This is OK for AT commands, but it mingles with user data that is passed, for ...

MZina.1 by Associate II
  • 187 Views
  • 1 replies
  • 0 kudos

Not able to read 40bit with BlueNRG-1

Hi, I can't read 40bit with my BlueNRG-1 and help wit timer in free-running. My us is ok but when i tried to read, it stop before read all 40 bits. Here i post my driver dht11. In main for test uint8_t h, t; if (DHT11_Read(&h, &t)) { printf("Hum...

Diltech by Associate II
  • 120 Views
  • 0 replies
  • 0 kudos