Interface and connectivity ICs

Dear Team,I use stusb4500 and desgin this circuit,I connected type C with this circuit and measured VBus got 20V, then a few seconds later stusb4500 broke down.​Anything i have lost in this circuit then made it broke down? How to fix this circuit to get 15V in VBus? Thanks in advance.

Hi everyone, I 'm on a project and sould developp a SPI communication between x-nucleo_idb05a1 and stm32F0 MCU and connect with a phone.The samples given on CubeMX are a bit complexes for what I have to do. I just want to send commands over SPI to initialize and put the ble into peripheral profile (virtual com port actually). Then after the connection with the phone, catch every single character (sent by the phone) through interruptions (like uart transmission). Once ending character is received, store the entire array in a buffer and then inform the mcu to come reading them in a non-blocking way.Do you have an easy way to do so or a simple document to read ?As for now, I appoximately understood how the sample app runs but that's not the same for virtual com port sample.Thanks.

I'm using a BlueNRG-2 Evaluation Board in network coprocessor mode with the GUI. Firmware is DTM v3.1. When trying to set up a secure paired connection, I sometimes get an event ACI_GAP_PAIRING_COMPLETE_EVENT with a Status code of 0x03. Status codes of 0,1, and 2 are valid. So what does code 3 mean? And the reason code is always zero.From experimentation, one cause is an invalid authentication configuration. But another cause appears to be an uncommon situation where the remote phone is bonded but the BlueNRG-2 does not have Bonding_Mode turned on with the ACI_GAP_SET_AUTHENTICATION_REQUIREMENTS command. So the phone thinks the device has a key from a previous connection when it really doesn't.

As far as I have understood, CS2 can be used for BlueNRG-2 acting as master and the another chip in salve mode, I can also see CS1 pin is also used for JTAG operation, does this mean CS1 can place BlueNRG-2 in slave mode for SPI communications? What about SPI_CS3?And finally how to use them?Thanks!

Hello, I want to add the wifi module to my Nucleo-F446ZE board, and for that I'm using X-Nucleo-IDW01M1.I know that the connection between the Nucleo BOARD and the WIFI module goes through UART. So, we must configure UART1 for the connection between the Nucleo board and the wifi module and then uart 2 for the connection with the PC. I looked for examples of TUTO, documentation, project carried out on other nucleo cards to get an idea on the configuration on STM32Cube and the AT commands used but I can't find anything. Is it possible to create a project and develop the wif module on STM32CUBEIDE with idw01M1? Should I use another module like ESP8266? Would someone have a track for this type of configuration, an example with another Nucleo board or anything that could help me with this problem? Thinks :)

Dear STM Team,169MHz RF channels as N2 mode cannot be used in our domestic market. So we have to move to new RF channels around 200 MHz instead of 169MHz as N2 mode. I'd like to know if it is possible to move RF channel (around 200 MHz) as N2 mode using the stack. Could you share how to move to new RF channel as N2 mode with the stack if it is possible ?ThanksSB

1) Having issue communicating with the board. After some googling, some post suggested that the firmware needs to be updated.2A) Attempted to update firmware -- From reading the document, below command was used, but it failed due to the error in red below: $ dfu-util -a 0 -D /Users/chalinlee/Downloads/MEMS_Demonstration_Kit_SW_package_v9_8_MACOSX/FIRMWARE/ProfiMEMSTool\ board/ProfiMEMSToolV3.6.36.dfu -d 0483:df11dfu-util 0.9Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.Copyright 2010-2016 Tormod Volden and Stefan SchmidtThis program is Free Software and has ABSOLUTELY NO WARRANTYPlease report bugs to http://sourceforge.net/p/dfu-util/tickets/Opening DFU capable USB device...ID 0483:df11Run-time device DFU version 011aClaiming USB DFU Interface...Setting Alternate Setting #0 ...Determining device status: state = dfuERROR, status = 10dfuERROR, clearing statusDetermining device status: state = dfuIDLE, status = 0dfuIDLE, continuingDFU mode device DFU version

I want to use BlueNRG in network processor mode. I am using a custom board STM32f103, the board has a two seperate UART connection, one to BlueNRG-1 and other to PC com port.

I read 0xE8 at the MC_STATE0 register from the S2-LP. The associated state 0x74 (0xE8>>1), doesn't match with any of the possible states:typedef enum { MC_STATE_READY       =0x00, /*!< READY */ MC_STATE_SLEEP_NOFIFO   =0x01, /*!< SLEEP NO FIFO RETENTION */ MC_STATE_STANDBY      =0x02, /*!< STANDBY */ MC_STATE_SLEEP       =0x03, /*!< SLEEP */ MC_STATE_LOCKON      =0x0C, /*!< LOCKON */ MC_STATE_RX        =0x30, /*!< RX */ MC_STATE_LOCK_ST      =0x14, /*!< LOCK_ST */ MC_STATE_TX        =0x5C, /*!< TX */ MC_STATE_SYNTH_SETUP    =0x50  /*!< SYNTH_SETUP */} S2LPState;

The guide says that the band plan can be changed using the Lora_SetDeviceBand() function for the AT-Master example. /************************************************************** * @brief Do a request to set the country band code for LoRaWAN * @brief Need to write to DCT and Reset module to enable this setting * @param BAND in value 0(EU-868 Band) / 1(US-Band) * @retval LoRa return code **************************************************************/ ATEerror_t Lora_SetDeviceBand(uint8_t DeviceBand);It only shows the values for EU and US bands. What value do I use to change to using AS923? The symbol USE_BAND_868 is defined in the symbols. Does changing it to USE_BAND_923 change the band plan? I cannot find use of this symbol anywhere in the AT-Master code.

 Hi.I have just received my X-NUCLEO-IDB05A1, blue tooth evaluation board. I have downloaded X-CUBE-BLE1, and following ST APP note AN4642, I have downloaded the BLE Profiles application for Android, and have loaded the “SensorDemo_L476RG.bin�? and the “ProfPerip_HeartRate_L476RG.bin�? binaries for testing with my Samsung mobile. When I run the BLE Profiles app and scan for devices the app finds a BlueNTG device, and on connecting to this device, its identified as BlueNRG, and I sometimes get a message that profiles are not yet supported, but in all cases I don’t receive any data from the device. Pressing the user button on the Nucleo board has no effect. Has anyone else had the same issues? How do I get data to my phone?Thanks.

I am testing a custom board trying to use BLUENRG-1 as a coprocessor, but when I flash the chip (using Keil, Atollic or BlueNRG-1 ST-Link Utility) with ST-Link/V2 tool, with the SWD port, the chip locks and I am unable to access the chip again, regardless of the application I use.I tried flashing the DTM example project, in BlueNRG-1_2 development kit, but that is the result. Any ideas about what could be causing this issue?

In theory the Basic protocol allows sending packets up to 64kB long. But the TX FIFO has only 96 bytes. How can I send and receive bigger packets? I was looking at the P2P demo but it doesn't handle more than 96 bytes.

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I am advertising and receive an incoming connection from an iOS App. This all works great. In my disconnect_complete call back I enable advertising again with a call to ret = aci_gap_set_advertising_enable(ENABLE, 1, Advertising_Set_Parameters); However advertising does not restart. Also found that if I do a DISABLE and ENABLE again using the above call then advertising doesnt restart

 Which stack release do I need to pull this in, I am currently using V1.0.0.The issue I see, seems similar, where in I don't see the paring complete ever being called (rarely called or not returned at all).My Initiator parameters are (BLE112D)Io capability 7 (Display with Keyboard), mitm enabled, encryption key min size 7, bonding enabled.The peripheral is a bluenrg, with authentication details.ret = aci_gap_set_authentication_requirement(  BONDING,                              MITM_PROTECTION_REQUIRED,                              SC_IS_SUPPORTED,                     

We've been using the S2LP in several designs, and we are happy with it. I'm working on a new PCB. However, since two days, I'm stuck with bug I have no more ideas how to debug it.I can read the registers successfully, but whenever I try to modify one of them, the value is not updated.I've made captures with our logic analyzer and everything seems perfectly normal. The logic analyzer capture is attached. It can be opened with this free software : https://www.ikalogic.com/scanastudio/I have 4 boards and all of them have the same problem...Here is my test :s2lp: Found S2LP! s2lp: chip version = 193 s2lp: status = XO_ON = 1 TX_FIFO_FULL = 0 RX_FIFO_EMPTY = 1 RCCAL_OK = 1 MC_STATE = READY ERROR_LOCK = 0 ANT_SELECT = 0 s2lp: writing 0x37 into 0x75 reg s2lp: Reading reg 0x75 = 0x17I try to write 0x37 in 0x75 register, but then I read back 0x17 (the default value). I've tested all sort of things, but no matter what I do, I can't write the registers.What can prevent the S2LP registers to be wri

We uploaded the BlueNRG-2 chat example code to our custom board.We got the expected output in the terminal window .But the Bluetooth is not available in any Bluetooth app.I'm attaching the screenshot of the output obtained from serial terminal.Could you please check it and let me know why BlueNRG-2 is not discoverable. We are using 32 MHZ external High speed crystal and low speed internal ring oscillator.We are using the following componentsANTENNA : 2450AT07A0100T‎BALUN : BALF-NRG-01D3‎

Hi everyone !I heard that it's possible to activate acknowledge on BlueNRG-2. Cause i'm sending a message which is acknowledge cause i get a status callback with another board from another constructor but i don't know which function send an acknowledge message and which give a status callback to notice that the message is received. If you could help me on this, it will help me a lot !Thanks

Hi,I want to conenct the BLUENRG-M2SA to a Raspberry Pi. This needs to be done through the USB connector.Can I use a USB-to-UART IC to connect to the UART pins of the BLUENRG-M2SA and then flash the software using this?Also, do I need to connect the reset pin to the Raspberry Pi, when I flash the software.Thanks.

Looking for solar charger IC with following specs...1.Input voltage of IC - min -5v and max -22v2.Charging current - min 800mA3.IC output voltage - 4.2V4.Should be configured with MPPT technique.

- The .bin sample is from https://os.mbed.com/teams/mbed-os-examples/code/mbed-os-example-ble-HeartRate/- The (iPhone) IOS Software version is 13.5.1, while the iPAD IOS Software version is 13.3-The timeout time capture around 10s from 'connect' click till 'timedout' notification pop-upHow can this be fixed?