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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I am using "54VCXH163245" bidirectional level shifter in one of my ongoing projects. I am using VCCA as 3.3V and VCCB as 1.8V. My queries are: 1. Is there any power-on sequencing requirement for 1.8V and 3.3V for this device.?

However, For similar level translator device like "54AC164245", there is an explicit requirement of sequencing of 3.3V and 5.0V . Please confirm and clarify.Then datasheet of device "54VCXH163245" says VCCA must be higher or equal to VCCB, but for "...

AKuna.1 by Associate
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Make S2-LP talk to nRF905

Hello,I have a need to make the S2-LP communicate to an existing RF system which is based on the nRF905. From the reading I have done it looks like it should be possible. Does anyone have any suggestions on how to configure the S2-LP to do the job?Th...

Witek by Associate II
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  • 6 replies
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BlueNRG-2 VTimer wake-up the system every 15 sec

Hello We're using BlueNRG-2 VTimer to be RTC for wake-up the system when it's in sleeping mode.when we set the timer 10mins, it still wake-up the the system every 15 sec.HAL_VTimerStart_ms(0, 600000);But I don't turn on the other timer such as 1 or 2...

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EYang by Associate
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  • 14 replies
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BlueNRG-LP with Atollic/ARM GCC

Hi, We are currently using the BlueNRG-2 with GNU ARM GCC to compile and run everything. We based our projects on CMake and GNU GCC toolchain to build by using the examples for the Atollic IDE (eg. the linker script, etc). We are now evaluating the B...

DAndr.4 by Associate
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  • 1 replies
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BlueNRG-LP can not run to main function

Recently I started to use the BlueNRG-LP,and I choosed BlueNRG345AC。I designed a PCB based on the STEVAL-IDB011V1. I try to run some example code on my design with KEIL MDK-ARM.It just totally dosn't work.the debugger is CMSIS-DAP,and I found everyti...

WYuan.1 by Associate II
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  • 1 replies
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Code samples for BLUENRG-M2SP

Hello, back in April in repsonse to a support question about developing a BLE project we were pointed to use a BLUENRG-M2SP board (along with a Nucleo-L476RG). These arrived and we were able to get the android app working where we can see the RSSI ch...

bartj1 by Associate III
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S2-LP: CLI source code

The S2-LP DK package comes with pre-compiled binarys that are used with the GUI application(S2LP_CLI_NUCLEO_L0.hex/ bin). Is the source code available for this CLI? I want to port this to my custom board (containing a STM32G microcontroller), so I ca...

allard by Senior
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  • 2 replies
  • 2 kudos