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Greetings,On the custom board I'm working on, the HTS is powered off (electrically) when unused. The rail used to power the HTS can't remain on because it also powers other components which must be powered off to meet the consumption target.I noticed that it takes quite some time for the HTS to be ready to answer to a first I2C request, and it's not consistent. It generally takes 300ms, but I've had devices where the 1s timeout expires. I can't find a max boot up time specified in the datasheet.I need to know this in order to determine a maximum timeout, and maybe have a deeper look at the I2C implementation in case something is wrong here.Thank you.

Trying to figure out the best way of programming CPUs for production. With other projects, we would normally get the microcontroller programmed before the PCB SMT stage. This service doesnt appear to be available for STM32WB (too new?), so the intention is to use 4x ST-LINK devices in parallel to program 4 boards at a time on the assembly line.Whilst I'm fairly clear on how to achieve this using the command line tools, I would like to check this is the only / best way of doing it. The time it takes to upgrade FUS (twice? still not clear if that's required as per release notes 0.5.3 -> 1.0.2 -> 1.1.0), then flash the copro with BLE_stack_full.bin, then flash the main image is longer than we would like. Can we combine any of the steps? Is it possible to generate an elf file that has "everything" in?Does ST provide programming services? or chips that are already preprogrammed with the ble stack, ready for our application code?Thanks

We are building a BPSK Modulator and transmitter on subgiga hertz frequency(402.78 MHZ),STM32WLE5xx suits our requirement, only thing i need to know Maximum bit rate for transmission if modulation technique is BPSk

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 Please help me to provide the HSE and LSE parameters to select the proper crystal and load capacitorsDo you have aything in the lab tested or qualified part for the STM32F413VH MCU.What is the typical values to be chosen for the HSE crystal

https://my.st.com/resource/en/data_brief/p-nucleo-ihm001.pdf 403 Forbidden: You don't have permission to access /resource/en/data_brief/p-nucleo-ihm001.pdf on this server.https://my.st.com/content/my_st_com/en/products/evaluation-tools/product-evaluation-tools/stm32-nucleo-expansion-boards/p-nucleo-ihm001.html#documentation

Hi,Currently, I have two boards that contain a 5 volt power supply. Due to flexibility for future projects, both of are powering the same pin on a connector. The STMPS2171STR was added to one of the boards to cut the voltage going to the connector. However, during bring up I checked the impedance of the output pin of the STMPS2171 to ground and it was high, this matched the datasheet. Once the board was powered on (enable off), I noticed that I had current flowing into the STMPS2171STR , when measured and it was roughly 10mA. I decided to recheck the resistance to ground and surprisingly enough I had 1kOhm to ground. I turned off my power supply and the impedance stayed roughly the same. This behavior goes against what section 3.4 of the datasheet.I have a few questions about this component.I am using this IC correctly?I tested a total of 3 different boards, and all of them display a similar behavior. However, the boards were build by hand, How resistant to heat are those ICs?The datas

Found while building the openstlinux-weston DISTRO st-image-weston image.Missing ${S}/ in front of stm32wrapper4dbg. Line 13 should be:install -D -m 0755 ${S}/stm32wrapper4dbg -t ${D}${bindir}

Currently I am using LIS2DW12 in my project with ODR set to 1600Hz in High performance mode. Reading the datasheet I found that the maximum bandwidth for this ODR ir 400Hz. I want to understand why tye maximum bandwidth for this setting is 400Hz and not 800Hz. I also want to know if it is possible to set the bandwidth to 800Hz with ODR set to 1600Hz.

Hi everyone please help for creat project , I'm new here and this area. I have stm32f103c8 and i want to control dc motorcan anyone help me to write code for control dc motor with hall encoder (PID control) thank's

We are developing a new product with the LIS2DE12 and are planning to use Ultrasonic welding during assembly of the ABS plastic enclosure. The welding machine will hammer on the enclosure with a frequency of 20KHz, with an amplitude of 20umeter and a 'big' pressure. The welding process will typically take 1-3 seconds. Will this be harmful for the sensor wich is mounted on a PCB inside the enclosure?

Should the 220nF bootstrap capacitor connected to ground or Vs? The circuit diagramm and the datasheet are describing it differently. Both can be found here: https://www.st.com/en/motor-drivers/l6234.htmlThank you.

In application note said that "The accelerometer sampling chain is represented by a cascade of three main blocks: an ADC converter, a digital low-pass filter (LPF1) and the composite group of digital filters". I want to know what type of filter is LPF1. Is it IIR or FIR filter. Regards.

ESD Diode protect​

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I've assigned the UART8 device in the devicetree of the linux kernel (OpenSTLinux):&pinctrl { // ... uart8_pins: uart8-0 { pins1 { pinmux = <STM32_PINMUX('E', 0, AF8)>; /* UART8_RX */ bias-disable; }; pins2 { pinmux = <STM32_PINMUX('E', 1, AF8)>; /* UART8_TX */ bias-disable; drive-push-pull; slew-rate = <0>; }; };   uart8_sleep_pins: uart8-sleep-0 { pins { pinmux = <STM32_PINMUX('E', 0, ANALOG)>, /* UART8_RX */ <STM32_PINMUX('E', 1, ANALOG)>; /* UART8_TX */ }; }; // ... } // ... &uart8 { pinctrl-names = "default", "sleep"; pinctrl-0 = <&uart8_pins>; pinctrl-1 = <&uart8_sleep_pins>; /delete-property/dmas; /delete-property/dma-names; status = "okay"; };The uart8 (0x40019000) is detected upon boot and the device /dev/STM1 is created:[ 1.196012] stm32-usart 40010000.serial: interrupt mode for rx (no dma) [ 1.196036] stm32-usart 40010000.serial: interrupt mod

We would like to build the TF-A image with a different muxer settingfor i2c4. The usual setting is:i2c4_pins_a: i2c4-0 {   pins {      pinmux = <STM32_PINMUX('Z', 4, AF6)>, /* I2C4_SCL */      <STM32_PINMUX('Z', 5, AF6)>; /* I2C4_SDA */      bias-disable;      drive-open-drain;      slew-rate = <0>;   };};our setup:i2c4_pins_a: i2c4-0 {   pins {      pinmux = <STM32_PINMUX('H', 11, AF6)>, /* I2C4_SCL */      <STM32_PINMUX('H', 12, AF6)>; /* I2C4_SDA */      bias-disable;      drive-open-drain;      slew-rate = <0>;   };};If we use the changed pin muxing we get no signal output on those pins.My que

The attachment is the schematic diagram of the STEVAL-ISC005V1 evaluation board.

I am using STM32F303VBT6 in my application where I need to use the graphical library for advanced HMI development. The system would have more than 15 screens (consists of Text, symbols, images etc.), LCD is not a touch display it is simple 262K color TFT display, resolution is 320X240, system would have multiple language support as well.So what will the Internal Flash / External Flash / Internal RAM / External RAM requirement to support this features with TouchGFX library??

Our motor driver need auto update parameter.Where is st motor profile detail flow figure. or open source code?

STM32F407 - Discovery Board 를 사용하고 있습니다.Datasheet �?�?서는 High, Full speed를 지�?한다고 �?�어 있습니다.CubeMX �?서 설정 가능한 �?�?�는 Full, Low speed를 설정 할 수 있습니다.​프로그램시�? Full �?는 Low로 설정�?� 해�?� stm32f4xx_hal_hcd.h를 보면 둘다 USBH_FSLS_SPEED로 정�?� �?�어 있는�?�요. ​어떻게 해야 LOW SPEED로 설정 할 수 있는지 알려 주시기 바�?니다.​​�?사 합니다.​

Hi.I'm using STM32F746-DISCOVERY EVM with CubeIDE (v1.4.2)I'm trying to send uart rx char via osMessagePut API in uart ISR to other task which waits uart que.in uart isr callback, when I get rx char, I send rx byte via osMessagePut ().void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) { if(huart->Instance == cliPort) { osMessagePut (uartQueHandle, huart->Instance->RDR & (uint16_t)0x01FF, 0); } }and receive part is belowuint16_t bsp_uart_gets(uint8_t* buf) { HAL_StatusTypeDef result; uint16_t size = 0; char ch; while(1) { result = HAL_UART_Receive_IT(cliHandle, (uint8_t*)&ch, 1); if(result != HAL_OK) { LOG("result - %d - %c\n", result, ch); } osEvent evt = osMessageGet (uartQueHandle, osWaitForever); if(evt.status == osEventMessage) { ch = evt.value.v; // in case of line end, return if( (ch == '\n') || (ch == '\r') ) { return size; } buf[size++] = ch; if(size > 64*2) size = 0; } else {

HelloI am developing a Bluetooth module and I want to use the STM32WB55 chip. In the specifications it says that it supports bluetooth 5.0 but there are few devices that support 5.0, I have been reading manuals and nowhere does it say that it supports versions prior to 5.0 (4.0, 4.1, 4.2) I want to know if you can tell me if it supports these versions bluetooth.Regads

I'm attempting to use LIS2DE12 at it's maximum ODR (Nominally 5376 Hz) to accurately measure the vibration frequency of a piece of equipment.I have discovered that the ODR of my sample accelerometers is not the same. The first one that I tested was about 5500 Hz and the next one was about 5250 Hz.I can not find any documentation about how much the ODR might vary and even more importantly whether it is affected by supply voltage, temperature or any other factors.Does this information exist anywhere ?

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