Solved

Hello :)Does anyone know what the impedance of the existing antenna matching circuit on the X-NUCLEO-NFC06A1 board is? I can't seem to find that information in any of the datasheets. I need the impedance so that I can design a new custom antenna. Br. Jørgen

..

Hi,I'm new with RFID technology especially when it comes to designing antennas on boards and calculating matching circuits but... I have successfully designed and manufactured my board with ST25R3918 and I have a few questions.I have a 43x43mm on board antenna with other electronics inside it, I have done 0.5mm spacing between antenna and ground polygon surrounding ST25R, uC and some serial communication ICs. Now I have about 8.5cm range with the 5x5cm tag (ST25TV02KC with ISO15693) from ST25-TAG-BAG-UB but only 3-4cm range with the button tag from that bag. Is there anything that I should do to increase the range? I have thought about two things: Firstly, redesign the "internal" circuitry to increase the spacing between antenna and ground. Secondly, change the RFID reader to ST25R3916B with greater output power (1.6W and ST25R3918 only 0.5W) but I don't know if it is possible to just desolder ST25R3918 and solder ST25R3916B in the same place(Can Auto Tuning circuits be a problem?).Nex

Hello I have two STM32WL55JC2 boards and I would like to run the PingPong DualCore example available in this WL package folder : I run the .project file on the STM32 IDE and I get this: After adding several missing .h files I manage to flash to the boards but I think I am missing a step.In the tutorial it says: " - Open your preferred toolchain - Rebuild all CM4 files and load your image into CM4 target memory - Rebuild all CM0PLUS files, set PWR_CR4_C2BOOT flag via CM4 and load your image into CM0PLUS target memory - Do the same for second board - Reset the two boards - Run the example on two boards - Open two Terminals, each connected to their respective PingPong Device - UART Config = 115200, 8b, 1 stopbit, no parity, no flow control"It's not working from now on and i think i've missed something but i can't find what."Rebuild all CM0PLUS files, set PWR_CR4_C2BOOT flag via CM4 and load your image into CM0PLUS target memory" i don

..

I am using spc5studio and SPC58EC80E1.i import crc sample from application library.i set CRC Settings at low level Drivers component RLA - CRC-32, Polymonial seed 0x4c11db7, reset = 0xFFFFFFFFand firmware code​-----------------------------------------------------------------------------------------------------const CRCContextConfig *crc_ctx_config[] = { &crc_context_config_contex_crc32,};  (void)crc_lld_start(&CRCD1);  (void)crc_lld_start_context(&CRCD1, 0, crc_ctx_config[0]);​  if (crc_lld_calc(&CRCD1, 0, startAddress, (uint32_t)length, &calculatedCRC) != CRC_NO_ERROR) {   osalThreadDelayMilliseconds(100);  }  (void)crc_lld_stop_context(&CRCD1, 0);  (void)crc_lld_stop(&CRCD1);-----------------------------------------------------------------------------​The code for the window is as follows.​uint Polynominal = 0x04C11DB7;uint InitValue = 0xFFFFFFFF;​int i= 0, j = 0;uint CRC = 0xF

We use WINDRIVER compiler to develop software on ST chip. Can you provide the example mentioned in AN5171 file?SPC560Dxx_RLA PIT WINDRIVER.zip

Creating the project with CubeMX for the STM32H743i_EVAL board and allowing it to generate the Initializing function and call for the SDMMC1 (or 2 for that matter), generates initialization code that attempts to power up the card without checking to see if there is a card present. Obvious failure waiting to happen. And even if there is a card present, the power On function is doomed to fail because the code never exectues the SD_MspInit wich enables all the io for communicating with the card. I am curious to know why that code is not present in the GPIO initialization functions? If that is not bad enough, it gets worse when the BSP code for SD is added to the project, it causes all sorts of compiler errors because of duplicate definitions.

Hello,we designed a PCB with an ST25R2916B which should connected via I2C.As basis for our design we use the schematic for the X-Nucleo-NFC06A1.Our Problem:If we connect the modified (UM2616, Chap. 3.5.1) X-Nucleo-NFC06A1 to a Nucleo32 running the NFC_Polling example, it works quit well.But if we connect our own design to the Nucleo32 no I2C communication comes up.We already study the datasheet in detail, but we can't find any reason that the comparison test fail.Question:Is there a reference design for the ST25R2916B with I2C connectivity which we can follow?Our design is:  Thanks for your help,Sebastian

Hello everyone! I'm very new to USB C PD so bear with me.I'm currently designing a very simple temperature controller board that uses a USB C PD power supply. I am using a STM32G071C8U3 as the host MCU. I have connected the CC1 (PA8) and CC2 (PB15) lines to the equivalent on the USB C port and am regulating the voltage from VBUS to 3.3V for the MCU. I've been assuming that plugging in will first deliver some voltage over VBUS in the USB PD range (3V-21V or something like that) and then the micro can negotiate the desired voltage/current, but when I plug in the USB C PD I get 0V on VBUS. What could I be missing?When I plug in a non PD capable supply, everything seems to work find and I get 5V on VBUS and the MCU turns on correctly. But plugging in the USB C PD gets nothing. I've confirmed this USB C PD works by hooking it up to the STM32 GO.Thanks for your time!

I am applying 4 offset to 4 adc channels and calculating the analog watchdog high threshold based on a threshold above the highest adc channel. The purpose of the adc offsets is to equalize the channels readings, such that the adc watchdog high threshold will be the same delta above any of the four channels. The issue I am having is the analog watchdog is triggering on the non-offset values. For instance, if my 4th channel is 0.1V above the 1st channel, before an offset is applied, and I set the watchdog to 0.1V, I get a constant trigger. With the offset applied, the 1st channel equals the 4th channel, but the watchdog is trigger based on the pre-offset values. To summarize, it seems that the analog watchdog triggers on adc readings before the offset is applied. Is there a way to get it to trigger post offset?

..

Hello!   On my board STM32F401 communicates with CR95HF via SPI use X-CUBE-NFC3.   After powering up, initializing the STM32F401 for 2MHZ SPI, run the st25r95Initialize() function.   I've noticed that CR95HF is unresponsive unless the power from a previous successful session was completely reset to 0V.   Through measurements, I noticed that the lower limit of the normal restart voltage of the CR95HF is 0.26V. If the voltage is below this mark (except for the value of 0V), then when restarting CR95HF does not respond to STM32F401 requests.   In datasheet CR95HF, in $ 3.2 a NOTE: "VPS must be 0V before executing the start-up sequence."   Is there any way to start CR95HF communication without first resetting its power to 0V ? Or need anyway to apply additional power reset circuitry for CR95HF ?  

..

hello.how to put the defined version information(32bit value) in the built image (test.hex or test.bin)?

During several trial to use ACI_GATT_Write_Long_Char_Value,I found that the microcontroller dosen't start its BLE advertisement anymore.It only can indicate wireless firmware version.I think that some transmission cause an error.So, I tried to rewrite FUS and Wireless Stack firmware but it couldn't solve the problem.So, I wonder that there is any way to reset microcontroller completely.

Using RTC with LSI Clock, BinaryMode and 24h Format. HAL_RTC_GetTime/Date returns unpredictable values after stop mode crossing midday or midnight:hours value above 24h. see a)"pm" (Timeformat "64") in 24h Mode, which is sometimes wrong additionally, which prevents correction. see b & ca) INFO: Entering Sleep for 28763463 ms (approx. 8h) INFO: StartSleep DateTime: 23/01/29, 20:50:33 TimeFormat:0 INFO: EndSleep DateTime: 23/01/29, 28:49:56 TimeFormat:0 -> Should be 23/01/30, 04:49:56   b) INFO: Entering Sleep for 28765979 ms (approx. 8h) INFO: StartSleep DateTime: 23/01/31, 05:33:32 TimeFormat:0 INFO: EndSleep DateTime: 23/01/31, 01:32:58 TimeFormat:64 -> Should be 13:32:58 and TimeFormat:0   c) early IRQ wakeup (approx. 6.5h) INFO: StartSleep DateTime: 23/02/01, 05:32:20 TimeFormat:0 INFO: EndSleep DateTime: 23/02/01, 12:00:58 TimeFormat:64 -> Should be TimeFormat:0unsigned int sleep(unsigned int sleepDuration){ RTC_TimeTypeDef startTime; RTC_DateTypeDef start

I have old eeprom, aprox of year 1998 of manufacturing. It's written on it ST 5880F 9948K SINGAPORE. Could somebody support me with datasheet for it.I need to make backup of it.

Hi TeamWe are currently working on ST PN: LIS2DW12TR in our new project. Thus, I would like to check with ST whether this part is OK to be Conformal coated? The reason is, our PCB will need to be conformal coating after all the components are populated on it. Hence would like to understand if there is any risk for this ST component to go thru this conformal coating process.Regards,Abishek

..

I would like to use the PC tool provided to test the FTM ( fast transfer mode) via 3916.I am trying to get the compatible FW for that. Could not be more complicated.The only FW I found to support it is: STSW-ST25DV003. ( Other FW's have old implementation back to 2015 with SNEP and P2P stuff that are practically irrelevant for today ( ST why do you keep that? ) Its very confusing ) The catch : STSW-ST25DV003 FW has crypto stuff in it ( that I don't need, I only need FTM ) and requires ST approval. My approval has been validating for a month now. (says 48 hours..)Is there another FW that supports both FTM and the PC tool for reader 3916?Could you remove the crypt stuff and just release an FTM fw?Or better, just validate?

“Error: failed to download Segment[0]�?I looked at the other items with the same title but did not see an answer that would help me.I am using the STM32MP157F-DK2The demo code was working when box was openedI tried to run the demo“Populate the target and boot the image�?athttps://wiki.st.com/stm32mpu/wiki/Getting_started/STM32MP1_boards/STM32MP157x-DK2I am using ecosystem release v3.1.0AndSTM32CubeProgrammer 2.9.0Down load eventually fails with “Error: failed to download Segment[0]�?Any help on the matter would be appreciated Below is the Log 10:53:37 : USB speed  : High Speed (480MBit/s) 10:53:37 : Manuf. ID  : STMicroelectronics 10:53:37 : Product ID : DFU in HS Mode @Device ID /0x500, @Revision ID /0x0000 10:53:37 : SN         : 002A001B3438511436383238 10:53:37 : FW version : 0x0110 10:53:37 : Board      : -- 10:53:37 : Device ID  : 0

Hello, I am trying to establish an interprocessor communication between the cores A7 and M4 with the with the Stm32MP157. The example from ST "OpenAMP_TTY_echo" works fine, but as soon as I change the received buffer or try to send a costomize buffer from the M4 side, it is not received correctly by the A7 anymore.This error happens even if I change only one character in the receive buffer.Does anyone have a clue what is going wrong?Thanks.

Hi I am a new bee here, I wanted to create a bootloader to flash two applications, so i need the flash partitions which I didn't got in the datasheet properly.and also I wanted to implement OTA so is this STM32F446RTC6 is capable of all this????

Hello,I'm joining a STM32 developpement project. We'll be 2 person working on the same system, implementing features on the same project. I would like to know what is the workflow to collaborate on STM32CubeIDE. There is not a lot of documentation about it...I'm considering using Git version control (I'm new to this tool). Both of us could be working on a branch. I tested the tool and it seems there is a lot a merging conflicts because of the generated files every time you change something.Solving these by hand seems really tidious (for exemple the .ioc file).What tool is the best to use ? What about eGit in CubeIDE directly ? What is the workflow to work on the same project without corrupting the other work ?How do you work on Git as a team (what branch for who, when do you merge...)Thanks for your help,Adrien