STM32 MCUs Wireless

Is there an EEPROM emulation for STM32WB55CG as it exists for the STM32L476RG ?

HiI thinking of buying and STM32WB (P-NUCLEO-WB55 evaluation board) because of the fast ADC. I need to sample four analog signals with a rate of a few hunderd Ksps and store their values.what would roughly be the sample rate when using 4 adc inputs (8bit)?Is there any direction you can guide me to, to accomplish this? (example/ adc application note)Thanks in advance,

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Hello, I'm facing a strange problem. I just bought the LRWAN2 package, connected the gateway to the network, one usb cable to power it and one usb to the st-link. I configured the packed forwarder to router.eu.thethings.network,1700,1700 and CH to US915.On the ttn side, I registered the gateway but it says "not connected".Searching on the ttn troubleshooting guide I found the bin file for this Gateway, so I updated the firmware, changed the MAC address to the provided one but no connection.I tried to connect the loriot server with success.I am running out of ideas.Does anybody faced the same or similar problem with ttn? Do anybody have a different bin file or configuration that work with ttn?Thank you.Daniel

I have TrueStudio v9.3.0, Stm32CubeProgrammer v2.0.0 and cubeMX ver5.2.0 installed. I can open and compile the hand-on project of BLE_HeartRate on TrueStudio but can't debug it. console shows: "Target no device found", error in initializing ST-link device.open cubeProgrammer also has error of "No STM32 target found".I can do nucleo board st-link fw upgrade/downgrade via cubeProgrammer, and PC usb driver shows "ST-Link Debug" current my nucleo board st-link fw is V2J35M26. Need help to make the board working with TrueStudio.Thanks in advance.

I'm trying to perform I2C read from external EEPROM upon characteristic value change.I'm able to read from EEPROM before advertisement stage.I'm using sequencer to put char_value_handler in the main thread.But HAL_I2C_Mem_Read() returns HAL_ERROR.The reason is NACK flag is set after writing device & memory address.I've noticed, that if I put a breakpoint before calling HAL_I2C_Mem_Read(), then release it manually everything is OK. The same result is with placing a 0.5 second delay just before HAL_I2C_Mem_Read().I can also put HAL_I2C_Mem_Read() in a while loop and it succeeds on a fourth try.I thought hat it could be some interrupt or hci_event but _disable_irq() makes no change. And no hci_notify_asynch_evt() is called after a HAL_I2C_Mem_Read() call.Maybe I sould use some mutex or status flag before calling HAL_I2C_Mem_Read() but I've already tried everything I could think of.Of course I could proceed

Hello,I'm testing a custom board implementing a BLE Server. The binary for CPU2 is the stm32wb5x_BLE_Stack_fw 1.3.0. All the radio system seem work well, tested with STM32CubeMonitor-RF and a nucleo dongle (Packet Error Test below 1%). The advertising phase work well too. But when I try to connect a BLE Client, it connects and disconnects immediately after. The reason code of HCI Event is 0x3E (Connection failed to be established).After some investigations, tring to load my firmware on the STM32WB Nucleo Board, I found the problem. I use LSI2 as source clock of RF WAKEUP, this seem not work also on the nucleo board, but switching to LSE (on Cube MX clock configuration), all works well. On my board I can't use the LSE, in reference manual I saw that LSI2 was suitable to source the RF WAKEUP. I already trim the LSI2 with factory value stored at 0x1FFF7548, but the frequency is 30kHz not 32Khz. Could be a problem?It doesn't work a

Hi, I am trying to calculate the current consumption for my BL072z board1.- my formula:16mA in run mode30uA in stop modeT to tx data = 20 secsNumber of txs in a hour = 3600/20 = 180duration of each tx = 3 secondstotal TX time = 3(180)=540 seconds = 0.15 hourstime in sleep mode = 0.85 hoursTotal current consumption = 0.15(16mA) + 0.85(30uA) = 2.43mABattery = 1000mAhCapacity is automatically derated by 15% to account for some self discharge so:Battery = 850mAhbattery life = 850mAh/2.43mA = 349.79 hours = 14.57 days2.- formula from website is the same result

Hello,i'm trying to send data to a server thanks to b-l072z-lrwan1 discovery kit but i can't even start the connexion between them.Here are the parameters that i've set/chosen on the server :here is the device parameter according server point of view :

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Hi, first my node did not get the join response and continuosly sent the join request but “suddenly�? my node started to sent the join request and got the join request accepted but repeated the processi mention “suddenly�? because it started to work just when i moved my gateway, then after a few minutes i moved my node antenna toward my gateway and it worked!I am

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Hi. Can anyone tell me if wireless STM32WB microcontrollers supporting Bluetooth 5.0 can talk to Android smartphones like the Samsung Galaxy S7 series? It looks they may only be compatible S8's and beyond. If not, is there a work-around? Thanks.

I have been trying to set up the initial code from cubeMX for my Thread Project.The Steps that i have taken are as follow:1) Set up RCC2) Set up HSEM3) Turn on RTC4) Activate RFHere are where the problems start, since i could compile until here5) Select Thread from WPANAlso from utilities Sequencer and TinyLPM have been checked.When I compile I get this:STM32CubeIDE/workspace_/wpan/Debug/../Core/Src/app_entry.c:185: undefined reference to `UTIL_LPM_Init'Core/Src/app_entry.o: In function `appe_Tl_Init':STM32CubeIDE/workspace_/wpan/Debug/../Core/Src/app_entry.c:205: undefined reference to `UTIL_SEQ_RegTask'Core/Src/app_entry.o: In function `APPE_SysEvtReadyProcessing':STM32CubeIDE/workspace_/wpan/Debug/../Core/Src/app_entry.c:283: undefined reference to `UTIL_LPM_SetOffMode'Core/Src/app_entry.o: In function `shci_notify_asynch_evt':STM32CubeIDE/workspace

I'm working to perform flash operations while the BLE stack is running and there is an active connection. Once I initiate an erase operation, the connection times out with a supervisor timeout.There seems to be an elaborate sequence of steps necessary to initiate a flash erase per the Cube code for pal_nvm:HSEM acquire FLASHFlash CR unlockSHCI_C2_FLASH_EraseActivity( ERASE_ACTIVITY_ON);Wait for suspend to be clearInitiate the eraseAcknowledge erase (clear erase op)SHCI_C2_FLASH_EraseActivity( ERASE_ACTIVITY_OFF);Flash CR lockHSEM release FLASHWhat is the C2_FLASH_EraseActivity? Is there any explanation of what this means or does? All of the other steps are, for the most part, explained.

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We are developing wireless communication via MAC 802.15.4 . We used your sample code of Mac_802_15_4_FFD and Mac_802_15_4_RFD to set up the communication between two STM32WB55 Nucleo boards successfully.  But we can't find any code or interface we can use to configure Tx power level. Thanks in advanceWenjian at Ingersoll Rand

Hi, I am having following problem. I am reading all the GPIO pins of portB when I receive an interrupt. The interrupt rate is 625KHz and I am storing this data for 20ms.The problem is I have data losses every 1ms. I think this happens because of the SysTick interrupt. My code is really simple. I only activate one GPIO pin for interrupts and the whole PORTB as an Input. I am not enabling the other perpiherals. Does anyone have an idea how can I solve this problem? I need to store data without data losses. Kind regardsOzan

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Hi,i am building the code for STM32WB55. I have enabled "Convert to binary file (-O binary)" and "Convert to Intel Hex file (-O hex)".I got 2 files:-bin file - 402MByte size-hex file - 183kByteAs i can see, bin file has 62kByte of real data and rest of data are "0x00". How i can make just normal BIN file? Please help to find out :)--Best regards,Sergii

I am currently working with the I-CUBE-LRWAN software expansion package with the B-L072Z MPU. I am trying to set up the device to allow multicasting, but I am confused on how to do so. The device is already set up as a Class C. Would I set up the McAppSKey and McNwkSKey solely on my Application or on both my Application and end device? If it is on both, how would I go about setting the McAppSKey and McNwkSkey on my end device?

I started using STM32wb55rgv6 nucleo board recently and I have been doing my early development in CubeIDE 1.0.2. [converted SW4STM32 project files].I've trying to replicate the OTA + BLE_p2pserver example and I hit the following snug:As part of the OTA procedure, one has to generate the .bin file for the application. CubeIDE consistently creates huge .bin files (~400Mb) from the BLE_p2pserver example as well as from other examples with BLE; it seems unrelated to OTA. The same step works just fine on IAR; I get the expected 32Kb binary file.As mentioned elsewhere, it's probably because of some high memory location included in the non-sparse binary, but I don't seem to be able to find a way around it. Enumerating all the sections in the linker file does not give a working app:arm-none-eabi-objcopy.exe -v --output-target=binary -j .isr_vector -j .text -j .rodata -j .ARM.extab -j .ARM -j .preinit_array -j .init_array

As the data sheet states the stm32wb55 MCUs has RF wake up capability at Standby mode, I am looking for some examples and references that implements the use case of wireless wake up events. Thank you in advance.

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