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I have already purchased the ST25DV64KC-DISCO board.I want to perform Bluetooth® Low Energy OOB validation.The user manual (UM2949) states that "ST BlueNRG module" is required.Specifically, which product should I purchase and connect?Please let me know if it is possible to build an environment that can be verified.<Verification details>・Android/iOS (iPhone) using Bluetooth® Low Energy Out-Of-Band (OOB)BLE automatic pairing function*An Android version of the demo application is available.It seems that there is no demo app for iOS version.In particular, is it possible to implement Out-Of-Band (OOB) using an NFC card on the iPhone?I would like to confirm, are there any cases where this has been verified?Please advise me 

Posted on October 28, 2017 at 21:00 Custom board based on STM32F429ZI with Microchip USB3300-EZK HS PHY. The clocks and USB connections modeled on the STM32429I-EVAL1 schematic. I've verified that the CubeMX-generated code for my board looks just like what is generated for the EVAL1. The EVAL1 code works. At least, up through USB_CoreReset(). At startup, the code calls USB_CoreInit() which calls USB_CoreReset(), both instm32f4xx_ll_usb.c. From USB_CoreReset(): /* Core Soft Reset */ count = 0U; USBx->GRSTCTL |= USB_OTG_GRSTCTL_CSRST; do { if (++count > 200000U) { return HAL_TIMEOUT; // <<<--- THIS LINE ALWAYS HIT } } while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_CSRST) == USB_OTG_GRSTCTL_CSRST); return HAL_OK; �?�?�?�?�?�?�?�?�?�?�?�?�? Does completion of that reset depend on the 60MHz PHY clock from the USB3300 (USB_OTG_HS_ULPI_CK input to STM32F429) being active? Any ideas why that clock might not be present? Based on the USB3300 data sheet,

I'm developing a power line communication with the ST7580. Sometimes I get an error code 0x08 returned by ST7580_DlData function. This code is not listed in Table 14 of the user manual. What causes this error?

hi guys im having an issues with opacity of a picture in the touchGFX from some reason its giving me only tree option: solid (255) or invisiable (0),and the third option is between which is staying on the same opacity all around the scale between 1- 254so its dosent metter if im choosing 170 or 254 its will give me 50% opacity..how can i solve this issue? 

I've been trying to read data from the OUT_X register of the LIS3MDL using a NUCLEO-L412KB, but I'm not getting any meaningful data output. When I move the device around, the output data doesn't change. I've connected CS to 3.3V and SDO to ground. What am I doing wrong? 

Hello.I have a project with Azure, and now I want to connect an external USB memory. Does anyone have a tutorial on how to configure the project to be able to read and write files from the external USB memory?I have only found the following documentation:https://wiki.st.com/stm32mcu/wiki/Introduction_to_USBX#cite_note-4https://github.com/STMicroelectronics/x-cube-azrtos-h7/blob/main/Projects/STM32H735G-DK/Applications/USBX/Ux_Host_MSC/README.md Any tutorial on how to configure it with STM32cubeMX? 

Greetings,Can I replace NX3L1T3157GM analog switches on en.MB1389-WL55JC-highband-E02_Schematic with FSA5157L6X ?Thanks in advance

Hello everyone, I am working with the lsm6dsr sensor. How can I solve the position information or how much I move with this sensor? I am looking at projects with examples on github, but I could not find how to solve the directions, how much the sensor moves, etc. with this sensor. I would be glad if you can help.

Hi:I'm testing the VL53L4CX and I'm experiencing some problems:1. When an object is within 3.5m and there's a wall 5 metres away, sometimes the returned distance alternates between two distances.2. When there is a mirror within 3.5m, VL53L4CX sometimes will return a distance more than 3.5m incorrectly.After researching the returned data, I found that "Extended Range" is turned on incorrectly.Can I know how the "Extended Range" function works and how to control it? Thankyou.Cyt

Hi,I have an STM32H747IGT6 that I wish to:Continuously sample 4096 ADC samplesTransfer each sample from the peripheral to memory using DMATrigger an interrupt at the end of the conversionsAfter the CPU operates on the stored data, restart the process at item (1)The process works fine through (3) with the ADC configured as LL_ADC_REG_DMA_TRANSFER_LIMITED and the DMA configured with LL_DMA_MODE_NORMAL. However, I can't figure out how to restart the DMA / ADC. Can anyone offer guidance on how to restart a one shot DMA transfer to memory from an ADC?The ADC conversions are triggered from a timer. Thanks!

I have been testing with the VL53L1X TOF sensor and am curious on the durability of the sensor in rugged environments. Such places would look like an industrial environment where vibration and impacts in inevitable. The sensor PCB would be potted and fully enclosed in a containment box. However, an opinion by others on how it would fare would be greatly appreciated. I know the data sheet shows shock as being an issue. Thanks!

STM32H743We have 4 SPI busses running at 12.5MHz but the SPI clocks are sequentially. SPI 1 and 2 are using DMA Channel 1 while SPI 3 and 4 are using DMA Channel 2. We would like them to run in parallel.Can they run in parallel.The code uses HAL_SPI_TransmitReceive_DMA() for each of the calls to the spi to Tx and Rx.The picture below definitely shows serialization of the accesses. Each access is 32 bytes.The picture above shows the clocks of 3 of the spi busses and it is quite evident that the SPI busses are not running in parallel.

Hello,I would like to know whether I understood the application note about the Vcap pins correctly. If there are 3 Vcap pins on the package, then 2 capacitors should be placed and one has to be connected to another. I'm not sure about this connection.

I have following code snippet, when I compile it with -O0 optimization level it gives below assembly code and I can observe value address on Expression window. But when I compile it with -O3 optimization level I couldn't observe address of value. Where is the storing location of value when compiled it with -O3 ?#define SRAM_ADDR 0x20000004U int main(void) { uint32_t value = 41; uint32_t *ptr = (uint32_t *)SRAM_ADDR; while(1) { value = *ptr; if(value) break; } while(1); return 0; }Disassembly :-O0 optimization :-O3 optimization : 

Hello, I have a similar problem as it was asked herehttps://community.st.com/t5/st25-nfc-rfid-tags-and-readers/rfal-demo-question/m-p/157070#M2943 I am trying to read 15693 tags with a board I designed myself.I adjusted the RFAL library to use my own SPI port and the GPIO I assigned for connection to the IRQ pin. The rest as I can tell was the GT timer which uses systick and is already handled.Here are my setting #define RFAL_FEATURE_LISTEN_MODE false /*!< Enable/Disable RFAL support for Listen Mode */ #define RFAL_FEATURE_WAKEUP_MODE false /*!< Enable/Disable RFAL support for the Wake-Up mode */ #define RFAL_FEATURE_LOWPOWER_MODE false /*!< Enable/Disable RFAL support for the Low Power mode */ #define RFAL_FEATURE_NFCA false /*!< Enable/Disable RFAL support for NFC-A (ISO14443A) */ #define RFAL_FEATURE_NFCB false /*!< Enable/Disable RFAL support for NFC-B (ISO14443B) */ #define RFAL_FEATURE_NFCF false /*!< Enable/Disable RFAL support for NFC-F (FeliCa)

Hello, I'm trying to use a ToF-Sensor to track the distance of metal parts (sheets, cog wheels etc.) usually in the range of 0-60cm. The thing is that I am only interested in the distance of the surface that is directly below the sensor, the center of the FoV of the Sensor so to speak. I tried using the VL53L4CD Sensor, which is a Single Zone Sensor and while the readings where accurate for flat surfaces, they weren't for surfaces with sudden changes in height within the sensors FoV(obviously). Hence why I'm considering using a Multi-Zone Sensor to get the distance measurement I'm interested in. So is it possible to only measure the distance of the surface which is in the center of the sensors FoV this way? Which sensor should I consider and what settings should I use to get the most accurate measurement?

Heyho,first of all, I know this is a Microchip product, but their forum is rather dead.And I have seen some people here using the KSZ8863RLL. So please bear with me... I'm currently working on a big and complex PCB including the "dual PHY" KSZ8863RLL.In the current datasheet I just found in table 4-1 the info, that MIIM register 0x1D with Link (test) / status info is not supported on PHY1, but only PHY2.Is that a typo? In the following register description table 4-2 the register is listed for PHY1.Here's a screenshot of table 4-1:I need to start PCB layout soon, and might have to switch ports.Thanks in advance!

Hi,I have a use case where I need to read and write to an NFC tag. The read and write operation will always be done by an MCU (via st25R) and not by any other device (eg:- android device).Should I use the NDEF format for the data in this case ? What is the advantage of using NDEF ?  

I'm looking for an alternative product to this diode.  I can't find any data sheets to the original product myself, so im hoping you can help me out. 

In the ULD driver for the VL53L8 is the file vl53lmz_api.c. In line 354 to 364, the firmware is loaded in pieces of 0x8000 bytes:My microcontroller has not enough ram to handle such big blocks, so I have to load the firmware in smaller pieces. But for what are the write commands to register 0x7FFF between loading the FW blocks in line 358, 361 and 364?What has to be adjusted to write the FW e.g. in blocks of 0x2000 bytes?Used product: SATEL-VL53L8

Hi Team,          In this module(TESEO-LIV4f) can able to processing the data L5 band(NACIC data and IRNSS)And how to update the firmware  for l5 band(navic and Irnss) and pls give refrence.And any break out board avaliavle for this module(TESEO-LIV4F)?Thanks and regardsARavind.S.R

Hello,I'm using BLE_p2pClient and BLE_p2pServer programs.I had pairing request in BLE_p2pClient to have both devices bonded.Now, I want to have a fast connection between client and server; actually, the connection between client and server is about 2.5 seconds.I should like not to have to discover again and again services and characteristics of the server by the client at each re-connection. Only once when the program starts.How to do that?Have you documentation descriving this?  (I have only found PM0271 §5.1.2).I have activated the SHCI_C2_BLE_INIT_OPTIONS_GATT_CACHING_USED in CFG_BLE_OPTIONS to initialize the BLE stack. But it is not sufficent!Thank you for your help.Best regards.                                    FWX.

hi Peter, have looked a lot around but i couldn't found what stand for marking B4.could you please help me? thanks a lot, Michele 

hi,1- What's the best way to speed up the swipe container transition?2- How can I change the animation of swipe container? 3- SwipeContainer.cpp can not modify. how do I make changes permanently ?  thanks for help 

Hi,What would be the consequence if there is a bootstrap diode used from pin 12 (Vcc) to pin 16 (boot), as used in the old days. I know that this should not be necessary because of the internal bootstrap circuit. So, can both "ways of working" used in parallel? Regards,Jacco