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

Issue when compiling BlueNRG-2 SampleApp

Hi,I'm trying to compile the example called SampleApp using keil uVision as IDE. When the project is created, in the Manage Run-Time Environment, the Startup selector in the Device tab is not selected by default, but I selected it before compiling th...

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dsm85 by Associate
  • 807 Views
  • 1 replies
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BlueNRG0 optimizing BLE troughput.

 Hello,I am an engineering student currently working with the BlueNRG-M0 for a student project. My setup consists of a mobile application communicating with embedded firmware through the BlueNRG-M0. However, I'm facing an issue: the throughput is qui...

Reda by Associate
  • 520 Views
  • 0 replies
  • 0 kudos

Optimizing Bluetooth LE

 Hello,I am an engineering student currently working with the BlueNRG-M0 for a student project. My setup consists of a mobile application communicating with embedded firmware through the BlueNRG-M0. However, I'm facing an issue: the throughput is qui...

Reda by Associate
  • 629 Views
  • 0 replies
  • 0 kudos

Configuring STM32U575 for I2C DMA transfer

I am working through a workshop tutorial on how to configure and use GPDMA transfers via the linked list functionality provided in STM32CUBEMX. When setting the linked list runtime configuration a Source Address, Destination Address and Data size are...

ITayl.1 by Associate
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Resolved! ST4485EB : is it 5V compatible

Hi,The ST4485EB IC mentions that it needs a 3v3 supply. How can we ensure that the A and B lines interoperate with other RS485 devices working at a 5V logic level as the datasheet mentions . Should I just provide 5V supply to this chip so that it int...

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Nilav by Associate II
  • 1939 Views
  • 4 replies
  • 2 kudos

VNH5180A-E

i have buy VNH5180A-E powersso-36 tp pakage some 20pcs but i check measurement not as per datasheetcan you let me knowdimension A /a2 = 2.53 mm  as per our  ( as per datasheet is 2.15-2.47mm)dimension H = 9.91 mm as per our ( as per datasheet is 10.1...

peter_hk by Associate
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  • 0 replies
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Resolved! How are the BLE attribute handle offsets defined?

Where can I find documentation on the BLE attribute handle offsets? I was adapting code from the sensor demo for the BLE NRG 2 and am trying to understand the "aci_gatt_attribute_modified_event" callback. Through observation and experimentation I fou...

BPaik by Senior
  • 4091 Views
  • 11 replies
  • 6 kudos

Resolved! STUSB4500L Logic Voltage

I am wondering what the logic voltage is for the I/O pins on the STUSB4500L. Under operating conditions they are listed as 0V to 4.5V, but the example circuit shows I2C pullup resistors to 3.3V. Is it safe to connect these I/O pins directly to a 3.3V...