Interface and connectivity ICs

Posted on November 21, 2017 at 11:46 Hello, I know my question is simple but the answer, I think, is not as simple. Here is my use case: I would like to exchange a small amount of data between a PC (client) and a remote device (server) quickly and often The PCrole is to - open a TCP connection to the server socket - start and stop application exchange - process the data. The remote devicerole is to - provide Wifi AP - listento a socket server - execute the command send by the PC - send data periodically I'm okay to create a server socket, use SPI protocole, and send data between them BUT I find very annoying the WIND notifications system to know there is pending data. Is it possible to disable the WIND notifications (with the WIND mask) and to use the IRQ line to signal only when application data have been received on the socket server? My dream would be : once the initialisation is over, to disable the notification and only use write and read socket command to manage

Posted on November 28, 2017 at 09:59hi,config: spwf04sx interface uart and stm32F401RB:i inform you i found a bug in n.x-cube-wifi1_firmware_v3.0.2 in wifi_module_uart_04.c in function Process_Wind_Indication case WiFi__MiniAP_Associated to get client_MAC_address. ptr_offset is NULL because  +WIND:28 is not present in the string ptr! In this case the string is 'Station Associated:44:52:65:87:25:0'   without '+WIND:28'case WiFi__MiniAP_Associated:        //Find out which client joined by parsing the WIND //+WIND:28        //X ptr_offset = (char *) strstr((const char *)ptr,'+WIND:28');Relace by:        ptr_offset = (char *)strchr((const char *)ptr,':'); //'Station Associated<:>'   Add test to check if pointer is not NULL        if (ptr_offset != NULL)    

Posted on November 27, 2017 at 01:14Hi I planning to use either SPIRIT1 or S2-LP for my project on WMBus. Refering to the schematic (http://www.st.com/content/ccc/resource/technical/layouts_and_diagrams/schematic_pack/d0/6d/01/df/b4/8f/43/75/steval-ikr002v4b_schematic.pdf/files/steval-ikr002v4b_schematic.pdf/jcr:content/translations/en.steval-ikr002v4b_schematic.pdf), there are these four resistors (R6-R7 in the lower left corner) which are soldered for the selected operation frequency. These are shown to be connected between GND to GND !!  Can anyone explain how do these resistors work and affect the frequency of operation? It may be that these are placed on the PCB exactly at the position needed so that the board will operate at the selected frequency. I am not sure and it is very confusing without any information.  Would anyone please explain?Really appreciate your help!!Thanks in advance!Silas#balun #spirit1-wmbus

Posted on November 19, 2017 at 15:19I'm facing a serious issue with the BlueNRG-1 chip. Its flash sometimes gets corrupt on power up. It is happening due to slow discharging of bulk electrolytic cap of 100uF. When I remove capacitor then it works fine but I can't remove capacitor because I will power this board with the external adaptor in the field. In general all power adaptor has capacitors at the output. So How to solve this problem? Anyone please suggest. I would be really thankful.Thanks#bluenrg-1-flash-gets-corrupt-on-power-up #flash-corrupt

Posted on December 14, 2016 at 07:57 I'm using the STM32F411RE board with the IDW01M1 WiFi expansion module. I run some examples from en.x-cube-wifi1_firmware.zip lib. However, all example code I run always fail during the wifi_init()--> wifi_reset() call where it just hangs in this while loop: while(IO_status_flag.WiFi_WIND_State.WiFiHWStarted != WIFI_TRUE) { __NOP(); //nothing to do } but WiFiHWStarted never gets set to WIFI_TRUE. Maybe i dismissed some wiring conncetions (the expantion connected via wires to eval board)? I have JP3 set in the 1-2 position (which it is). I also have JP4 set in the 1-2 position. I have connceted 3.3v to CN7 pins 12& Thanks, Note: this post was migrated and contained many threaded conversations, some content may be missing.

Posted on November 16, 2017 at 13:55Hello,I am trying to contact someone from ST developers who is responsible for writing SPBT3.0 data package firmware. There are two features that could be very great to add:1) SPBT3 Module to transmit BREAK character over UART to MCU when it switches from bypass mode to command mode by itself. I.e. when connection is broken by remote device over bluetooth (unexpectedly). It allows host MCU to monitor link status without using additional input pin (link active) and handle UART traffic appropriatelly.Break character is easily designated from normal characters on the host MCU side. This feature could be activated by some additional configuration variable.2) Customized SDP record to hide SPP profile. This is great for designs that do not use COM port API on Windows etc, but use Pairing/RFCOMM connection API directly. We use this approach on Windows/Android and it is greatly compatible over many stacks (MS, Toshiba

Posted on November 01, 2017 at 14:20I can connect to network using wifi_connect function without any issues.priv_mode = WPA_Personal;status = wifi_connect('NETWORK','password', priv_mode);When i try to configure module with firstset, it associates with AP but then it disconnects, here are the WIND messages:+WIND:57:Received SSID is NETWORK+WIND:57:Received Auth mode is 2+WIND:57:Received PWD is password+WIND:57:Received IBSS Auth type is 0+WIND:57:Received Dhcp setting is 1+WIND:57:Received Mode is 1+WIND:2:Reset+WIND:1:Poweron (160129-c5bf5ce-SPWF01S)+WIND:13:ST SPWF01S IWM: Copyright (c) 2012-2015 STMicroelectronics, Inc. All rights Reserved.+WIND:3:Watchdog Running+WIND:0:Console active+WIND:32:WiFi Hardware Started+WIND:21:WiFi Scanning+WIND:35:WiFi Scan Complete (0x0)+WIND:19:WiFi Join:C0:A0:BB:AB:46:A2+WIND:25:WiFi Association with 'NETWORK' successful+WIND:41:WiFi Disassociation:14+WIND:40:WiFi Deauthentication:6+WIND:21:WiFi Scanning+WIND:35:WiFi Scan Compl

Posted on November 04, 2017 at 19:07Hi I received 2 of this kit, and I ran some basic tests - works really fine!I am trying to use S2-LP in wm-bus solution for my project. I have a question regarding redudcing the capacitors/inductors count on the PCB : is there any chance to use balun (say with a freq range of 850MHz ~ 915MHz  (https://cdn.anaren.com/product-documents/Xinger/BalunTransformers/B0809J50ATI/B0809J50ATI_DataSheet(Rev_A).pdf) ? And if yes, how would that change the circuit ? Thanks in advance!!Silas#s2-lp

Posted on November 17, 2017 at 22:07Hello! Is there any BT dongles based on SPBT3.0DP chipset? What BT dongles and drivers on host site are better to use with SPBT3.0DP ? 

Posted on November 15, 2017 at 19:45We're using the SPWF04SA and trying to connect to various SSL sites. Some work while others don't. We used the steps outlined in AN4963 for retrieving the certificates, all done in DER encoded binary X.509 format. We get the same results whether we use SOCKON or HTTPGET in every case. All sites work fine using regular http over port 80, though the returned data is sometimes empty because the site does a redirect to the SSL version. ssllabs.com was also used to get some information on the certificates.Using the following commands, and the given subject key ID for the certificate, connecting to meta.stackexchange.com works fine:SubjectKeyId: B1:3E:C3:69:03:F8:BF:47:01:D4:98:26:1A:08:02:EF:63:64:2B:C3AT+S.TLSCERT=content,2<cr>AT+S.TLSCERT=ca,969<cr><data>AT+S.HTTPGET=meta.stackexchange.com,/,443,2,,,,<cr>However, attempting to do the same to ghi-test-iot.azure-devices.net fails with the errors below:SubjectKeyId: E5:9D:59:30:82:

Posted on November 14, 2017 at 18:30Hello,I am using the SPWF04 to provide Wifi acces to my system, interfacing by SPI. SPI works fine but I receive the following 'Console active' WIND message:02 10 00 02 00 0d syncKOE : WINDIndication Nb : WIND ID 0 -> 'console active'length : 0x0002payload : '<cr>'In UM2114 there is no payload for this WIND message, then my question is :Why the payload lenght is 2 but the payload is only one Carriage Return char? Is it normal?Thank you for your helpIn attachement, the SPI dialog without MOSI to receive the WIND message#console #spi #spwf04 #wind-message

Posted on November 14, 2017 at 14:52I've seen a few posts on issues with the SPI interface to the SPWF04 WiFi module, and from the past weeks experience have yet to get any of the examples supplied with the middle ware to actually work with SPI.Eventually I want to use it with a STM32F7 processor but as there were no examples I bought a SRM32L476 Nucleo board so I could use the examples straight from the supplier unchanged.Using the UART I got the Client Socket example to work quite quickly, but the SPI just hangs and the data I see at the PC is missing the first block that was supposedly written.looking through the middleware SPI code there are many commented out 'debug' sections which were obviously used during development and a few worrying comments to put in random delays to get things to work.So as you don't often see messages from users who got it working I'm trying to see if there are a great majority out there or is everyone using the slower UART interface method?Is the SPI ve

Posted on November 14, 2017 at 17:18Hi,What processor does the BlueNRG-1 use? I would like to create a project from scratch and add the relevant files and libraries as I go.I think it might be the STM32L152XE(?) but would definitelyt like confirmation.I should be getting development kit shortly so I may be able to work it out from connecting to that.ThanksPatrick#bluenrg-1

Posted on October 31, 2017 at 23:24SPWF04SA AT+S.FWUPDATE error : I am facing a time out error (Timeout while TCP-Connect (TCP-Syn) while trying to update firmware over the air using the AT command AT+S.FWUPDATE.Exact command is below :AT+S.FWUPDATE=e,192.168.0.13,[/fw.fota],[80],[1],[ARRIS-C962],[215DA870F9CFD298]I am attaching the screen shot of the error with this discussion. Can someone please help me out.#spwf04sa #fota #wifi-expansion-board

Posted on October 17, 2016 at 10:59Hi, I am working on win10 using the STEVAL-IDW001V1 Evaluation module. Application development has been fine, but now I would like to update the firmware to the latest to use the extra features. I have tried both the UART bootloader method and the AT command OTA using Apache server and both have their own problems. I reverted to trying the UART method because I could not get the OTA method to work. OTA Method - I am not able to tell whether my module is *.11 or *.21 1. Connect module to Wifi network 2. Start Apache 2.4 server on PC (also connected to same network) 3. Confirm server running by opening browser 127.0.0.1 4. Place .ota file in htdocs folder of the server 5. Use AT+S.FWUPDATE=127.0.0.1,/SPWF01S-160129-c5bf5ce-RELEASE-main.ota What returns is: ERROR: connect() failed, aborting<CR><LF>    UART Method  1. Place J4 so BOOT 0 is high. 2. HW reset the module 3. Run the FW_update.bat 4. I make the on screen selection

Posted on November 07, 2017 at 11:14 Dear all, I try to connectSPWF04S toa WPA2 network of my company and I have problem with static IP. The IT guys make a reservation for the module with a specific ip address based onSPWF04S MAC address. When I try to connect the server give to the module a different IP address every time because the MAC address that the module send to the server is very strange as you can see in the picture (the last column is the mac address): How I can fix this issue? Usualy, the AT commands that I send is: at+s.wifi=0 at+s.ssidtxt=networkname at+s.scfg=wifi_wpa_psk_text,networkpassword at+s.scfg=wifi_priv_mode,2 at+s.scfg=wifi_mode,1 at&w at+s.wifi=1�?�?�?�?�?�?�? Thanks Marco #spwf04s #dhcp #static-ip

Posted on November 09, 2017 at 10:51I wish to use the internal registers of the STuW81300 synthesizer to control the hardware power down function.Should I leave the physical pin (pin 4) floating or pull it up / down?There is no mention in the data sheet.

Posted on November 09, 2017 at 12:45Hello,I have downloaded STM32CubeExpansion_BLE1_V3.2.0 and loaded DMALowPower_App as server on my nucleo board (NUCLEO-L073) that is compatible with L052. Then, with my phone and the 'STM32 BLE Profile App' application, i was able to see my blueNRG device. But when i power down and power up my board again, i wasn't able to see my device anymore. I tried with another board, and this is the same thing at second startup.  tried to update the firmware of the chip but it didn't change anything.Do you think it could come from my phone (that is a cheap chinese Archos phone)Best regards,Aur�lien#ble #stm32 #nucleo #bluenrg #idb05a1

Posted on November 06, 2017 at 13:53Do you know if it exists a Blue ST PC application to communicate with Sensor Tile  instead of Blue MS application for Android?#sensor-tile #ble #nucleo-476

Posted on November 06, 2017 at 13:06Hi,I am trying to test SPBTLE-1 with this evaluation board. I am using an STM32 Nucleo board as external ST-Link with the setup specified in user manual (DocID030830) linked below and BlueNRG-1 ST-LINK Utility software.When I connect the system via USB to my pc (usb dongle of the Nucleo board) I get the following reports: FAIL.TXT: 'The interface firmware FAILED to reset/halt the target MCU' DETAILS.TXT: 'Version 0221'When I try to use ST-Link utility I get 'No target connected'I have no problem for program the Nucleo board using STM32 ST-Link Utility.Any advice?User manual (setup at page 22):https://my.st.com/content/ccc/resource/technical/document/user_manual/group0/28/76/a9/ea/c3/20/4e/fb/DM00411757/files/DM00411757.pdf/jcr:content/translations/en.DM00411757.pdf)

Posted on November 06, 2017 at 11:15Good morning, is there any specific PC software application that can be used with SensorTile kit instead of the Mobile application?My point is to have the same features that can be performed form my labtop instead of the mobile.

Posted on October 06, 2017 at 12:14Hi,I am using the SPBTLE-rf bluetooth module to create a device that advertises for connections and once connected will present a number of characteristics and services.Essentially almost all of it is working as I would expect. I have created services and characteristics for most of the attributes I need to convey.The sticking point is when I exceed 60 attributes. So I have three services and 28 characteristics. Two of the characteristics have three attributes (because they use notifications) and the rest use two. There is also an attribute for each service.This brings me to a grand total of 61 attributes. When I run the code I obtain an error when trying to create all the attributes on the module.If I remove one characteristic (i.e. two attributes) the code runs and generates the characteristics and services without error. Does anyone know why there is a limit of 60 (I assume it is a memory limitation) and is there any way of increasing th

Posted on March 29, 2017 at 14:26As i understand the programming manual section about bonding on BlueNrg-MS devices, encryption keys are stored in the security database in order to resolve addresses, and encrypt future data connections.This all seems to work as expected, but it is unclear to me how to manage the security database over time, when a number of devices is expected to pair to the device during its lifetimeHow many different bonding devices can the security database handle, and what is expected to happen when the database is filled up ? I am aware of the aci_gap_clear_security_database api, but as this clears all paired devices I would like to avoid calling thisunless needed.\Anders

Posted on November 07, 2017 at 18:30Hi  I am working on new application based on ST BLE + STM32 controller . For proto development I am using NUCLEO-F030R8 & X-NUCLEO-IDB05A1 eval board. I want to control speed of a DC motor (controling PWM) through BLE using Smart phone. Pls advise how to do this. Which app should i use for this. Can i use BlueMs app. How about Blue Explorer App (IOS App).

Posted on November 02, 2017 at 10:01I have a little problem with BlueNRG-1 chip. I want that the first time I pair my phone with the BlueNRG-1 Testboard.When I switch off bluetooth on my phone (iPhone) and the switch on, I want that my phone connects automatically to my BlueNRG-1 Testboard (like headphones).But this doesn�t work.The pairing process works well (first I get the event 'hci_le_connection_complete_event' and after the confirmation on my phone I get the event 'aci_gap_pairing_complete_event') but when I reconnect bluetooth the board goes always in the advertising mode and I don�t know why.If the BlueNRG-1 needs to be configured or must the phone make sure that an automatic connection has been established?#bluenrg-1-automatic-connection-after-pairing