Interface and connectivity ICs

Problem Debugging BlueNRG-2

I am using an STEVAL-IDB008V2 board which contains a BlueNRG-2 chip. I am testing out this product using Keil uVision (version 5.29.0.0), and I am running the BlueNRG-2 sensor demo code (with sleep function removed; I learned this causes problems).T...

We have some problems with the ST485BDR product we when apply the 120 Ohm load resistor

We produced a 4 channels RS232 to 485/422 converters using a FTDI4232 and four ST485BDR. When apply the 120 Ohm load resistor, some ST485BDR send the pin 1 to low state, lighting the RX LED.When the pin 1 goes low, the RX LED remain lite. If I touch ...

SPWF01 secure sockets: SSL/TLS Error

Hello,since 30. January I can't use secure sockets with my SPWF01 modules. I try to connect to fcm.googleapis.com. It looks like google changed something in the authentication (maybe no more anonymous auth or something else). Does anybody else has th...

Hii , I m started to develop the USB Keyboard using the STM32 microcontroller. I was set all settings in CubeMax for USB mouse. now I am change that settings in Atollic True Studio for HID USB Keyboard but Not Got Success yet.

 Hii, I am started to develop the USB Keyboard using the STM32F0 Series microcontroller. I was set all settings in CubeMax for USB mouse now I am change that settings in Atollic True Studio generated files for HID USB Keyboard but Not Got Success ye...

Does anyone have documentation for the protocol used by sfwloader for loading firmware into the ST2100? I need to implement that protocol on a communications processor.

S2-LP: Doppler effect due to tranciever moving at a speed 1 m/s

Hi!In my situation i have two boards with S2-LP (868Mhz): one for transmit data and one for recieve. The reciever is stationary located and doesn't move. The transmitter moves back and forth at a speed 1 meter/second.My question is: should i bother a...

I need to make connection between two STM32 Nucleo 64 via I2C. I followed an example in STM32Cube\Repository\....\I2C_TwoBoards_ComDMA I configurbased on this example and connected SDA, SCL but nothing is transferred. I am cant solve the problem.

I configure the I2C as follows:hi2c1.Instance = I2C1; hi2c1.Init.ClockSpeed = 100000; hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2; hi2c1.Init.OwnAddress1 = I2C_ADDRESS; hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c1.Init.DualAddressMode = I2C_...

Error as Connect under reset

As I am doing debugging in STM32L072CZ using ST Link/V2 by STM32 ST-Link Utility software. But I getting error message as Connect Under Reset and I have tried under all mode but same error has been repeated. How can I solve this error and I also atta...

SPIRIT1. Any ideas why I might see double the expected frequency deviation?

Hello,We are using the SPIRIT1 with a 50MHz crystal (as part of an SPSGRFC-433 module); I've configured it to MSK, with a base frequency of 433.175MHz, a data rate of 250kBaud, which leads to a configured frequency deviation of ±62.5kHz. I've set a b...

How do you JTAG chain the Bluenrg-2 232 and STM32L4R5VIT 100pin package?

I am building a board that will use both the STM32L4R5VIT 100pin package and Bluenrg-2 232. I would like to JTAG chain the two processors so that I can use my Segger Jlink to debug both processors from the same debug connector. The pins to use for JT...