Interface and connectivity ICs

How many server profile services are supported by firmware version 2.1e BlueNRG-2N BLE?

How many server profile services are supported by firmware version 2.1e BlueNRG-2N BLE ?

I would like to know the meaning of ADVdata in the (aci_gap_update_adv_data) function

Hello all.I am currently testing the STEVAL-IDB008V1M development version, I am using the BlueNRG-2 example code (BLE_SensorDemo_BlueMSapp) and there is manuf_data[26] in the function (Set_DeviceConnectable) in the sensor.c file. Can anyone explain w...

Increasing size of Attribute array on BLUENRG-M0 > 700 bytes

Hi,I am using the BLUENRG-M0 (Nucleo board) and a STM32F446 Nucleo 144 to build a BLE peripheral. I am creating my services with the BLUENRG GUI v4.3.0.My FW versions on the BLUENRG areBlueNRG HW version 3.1BlueNRG FW version 7.3Motherboard FW 1.9My ...

I made an acquisition board with STM32WB55rgv6. I want to save ads1299 sampling data to SD card by FATFS(via spi). But my write speed is only 1KB. Here are the measures I have tried： ①Improve SPI clock ②Replace faster SD card ③Mybuffer is 51200B

Although every time I write in a single block instead of multiple blocks， and I only use SPI, not DMA. But the write speed is too low, only 1KB. I've browsed through many measures, but they still haven't saved me. I used stm32cubeide to develop this ...

BlueNRG-M2SA return (BLE_STATUS_OUT_OF_MEMORY)

Hi,​I tried BlueNRG_Stack_Initialization but it returned the value 0x48, I looked at the ble_status.h file and it says/** @brief The requested operation failed because of lack of memory.* Out of memory shall be returned for situations where memory wi...

74HC138, One I2C bus - 4 I2C devices

Hi,I am using 4 NFC 4 Clicks in combination with 74HC138 to connect them directly to on I2C bus. Can anyone hep me how do I implement this in my code so that he controller would switch between every I2C device.Rgrd,Anej

There is no cdc-acm driver on the existing embedded Linux computer side (Driver installation not possible) The stm cdc device is detected, but it couldn't be connected to TTY port. Can I connect with libusb? If not, is there a way to connect?

Getting DAC output via I2S line

Hello, I want to send data to the DAC with the I2S protocol (assume we are sending an array) and see a sine wave at the output.At this point, I would like to ask: Does the DAC in the stm32f407vg model mean the CS43L22 IC or an internal DAC unit in it...

Setting up extended advertising with BlueNRG-LP

Hi,I'm trying to setup a client & server pair that work like the following:Server using coded PHY, advertising its device name/manufacturer data in Secondary advertisement channels. That means it will advertise with ADV_EXT_IND in Primary channels fi...

Incorrect reset behavior SPIRIT1

I am using a SPIRIT1 as a transmitterI switch the (2.8v) rail onI wait for the part to become ready (as indicated on GPIO0)I then program it.On MOST samples this is OK, but about one in ten units intermittently fail to program correctly (the SMPS doe...