Interface and connectivity ICs

Posted on May 17, 2017 at 18:02Hi All,I am currently working on a project where I want to interface with the LIS2DE12 accelerometer and an Arduino Mini Pro (16MHz) w/ ATmega 328 over I2C. I am using the STEVAL-MKI175V1 as an LIS2DE12 adapter board. The following pins are connected:SCL to A5SDA to A4SDO to 2.5V (This sets the device address 0x19. Connecting it to GND would change the address)CS to 2.5V (This enables I2C)GND to GNDVDD_IO to 2.5V (I have also tried VD_IO to RAW)I am not using pull resistors as the ATmega 328 has internal pull resistors. Is this setup correct? The board also has VDD is there any difference between VDD_IO in this context. I also have to mention that I had previously connected SDO,CS and VDD_IO to 5v without me realizing  the max voltage for VDD_IO is 4.8 and CS and SDO have a max voltage of VDD_IO + 0.3. Did damage the STEVAL-MKI175V1 board? Is there a way to test if it was damaged?#i2c #can-wiring #connection

Posted on May 11, 2017 at 15:04Hi!I am using the SPWF04SA module. I am trying to create dynamic pages. My webpage is done and it works. I'm having problems with updating the tokens buffer using the AT+S.INPUTSSI command as described in the AN4965 Application note and UM2114 User Manual.The problem is, if I send more than 255 bytes with AT+S.INPUTSSI command, the module became unresponsive! No more AT commands are recognized, and after 20 seconds the Watchdog resets the module. I think this is a bug, and if the SSI tokens buffer is limited to 255 bytes, this should be mentioned in the manual and/or application note.So, when I send this:AT+S.INPUTSSI=256|{1111;11/05/2017;16:00}|{1111;11/05/2017;16:00;0;1;11,00;116;0;0}|{1111;11/05/2017;16:00;116;0;0;0;6;0;0}|{1111;11/05/2017;16:00;7;1;0;2;1;0;12345;0.0.0.0;123456789012345;1234567890123456}|{1111;11/05/2017;16:00;22:32:43;33;3;8;19:42:43;32;2;65}|{012345}|I get no answer from the module, and I have to wait 20 seconds for the watchdog to

Posted on May 16, 2017 at 11:48Hi,I finally got my hands on the SPWF04S module; it works great, but i have some questions about the user flash and the micropython functionalities:First of all, how can i write on the user flash? Is the AT+S.FSUPDATE command the only way to create files on the user flash, or is there any other way?Following up on that question, let's say i manage to put a python script on the user flash (using FSUPDATE command or any other method); can that script be launched with the usual AT+S.PYTHON command?Thank you#spwf04sa

Posted on May 05, 2017 at 15:43Hi all,I am implementing the X-CUBE-BLE1 stack in my project and after some initializations like:aci_hal_write_config_data(CONFIG_DATA_PUBADDR_OFFSET,                                  CONFIG_DATA_PUBADDR_LEN,                                  bdaddr);aci_gatt_init()The function aci_gap_init_IDB05A1(GAP_PERIPHERAL_ROLE_IDB05A1, 0, 0x07, &service_handle, &dev_name_char_handle, &appearance_char_handle);returns the status FLASH_WRITE_FAILED (0x4A).Have anyone any idea for this problem?I'm following the 'SensorDemo' project step by step.Thanks.#spbtle-rf #stm32 #bluenrg-ms

Posted on May 15, 2017 at 11:59Hi,I am planning to build a low power 6 low pan network by using coin cell battery.is it possible to run it for months.spsrgf module need 22mA of supply current for transmission and 10 mA for receiving,as my coincell is of 240mAh,how much time i can run the mesh

Posted on May 15, 2017 at 10:53Now I am working with SP1ML(STEVAL-SP1ML868) and SPSGRF(X-NUCLEO-IDS01A4) modules working on 868 MHz frequency. SP1ML(USB Dongle) is connected to my MacBook where I can see what SPSGRF is sending to me in Putty software. SP1ML had a standard firmware, allowing AT commands to facilitate RF configuration, data transmission and reception, using simple point-to-point communication. SPSGRF was programmed using expansion software package http://www.st.com/content/st_com/en/products/embedded-software/mcus-embedded-software/stm32-embedded-software/stm32cube-expansion-software/x-cube-subg1.html. I have two problems with connection between my modules. First of all SPSGRF is sending to me very weird strings shown below: Below I have posted one more images showing the configurations of SP1ML module and code from Keil showing a configurations of SPSGRF module https://codepaste.net/kxohms. I checked: this is not problem wit

Posted on May 10, 2017 at 08:14Hello,What is the recommended procedure to exit (or disable) LDCR mode for the Spirit1?The documentation has the start up procedure for RX, but no mention of start up for TX or the disable procedure for both.http://www.st.com/content/ccc/resource/technical/document/application_note/47/50/91/3a/f5/fd/4d/c1/DM00068699.pdf/files/DM00068699.pdf/jcr:content/translations/en.DM00068699.pdf I have tried several variations of the following code however the Spirit1 occasionally (but not always) reports MC_STATE = 0x20 or 0x53 or 0x29 during the status refreshes.    SpiritCmdStrobeFlushTxFifo();    SpiritTimerLdcrMode(S_DISABLE);    SpiritTimerLdcrAutoReload(S_DISABLE);    SpiritCmdStrobeSabort(); //In case the Spirit1 is in TX or RX    do    {    SpiritRefreshStatus();    }while(g_xStatus.MC_STATE==MC_STATE_RX || g_xStatus.MC_STATE==MC_STATE_TX);

Posted on May 11, 2017 at 10:33Hi,I would like to build my commercial applications with LoRa and Spirit using ST modules. Is it true, that I have to pay for license, even when I will use ready to use modules? If yes, where I have to buy that license and how much does it cost? I have to join to LoRa/Spirit association?Thanks,Pawe?#spirit #lorawan #lora #license

Posted on May 12, 2017 at 11:06In Spirit1 Promiscuous Mode is Available? I didn't find Any information with regards to it in Datasheet.

Posted on April 07, 2017 at 09:28ST-link connectivity issue with some BlueNRG-1 chip Hello Guys,                            I'm developing one nice application on BlueNRG-1 chip. I'm facing one issue with some of my boards. I have checked out all possibilities. But problem seems to be with some BlueNRG-1 chips or It gets damaged internally after hand soldering. Not Sure! Please problem details below. I have recorded my Laptop screen as well. Please see this link: https://www.youtube.com/watch?v=_ApoQ_sYKlc Overview: Application having simple 16x7 matrix LED display which is drive from ULN2004 & 74HC595 shift register. UL2004 connected directly through controller's IO and shift registers are connected via SPI of controller. Application should work on 12V supply. So there are 5.0 & 3.3V regulator. Shift register 595 chip having 5V & 3.3V provision via 0E resistor. One source at a time p

Posted on May 05, 2017 at 15:14Hi All,Can we somehow retrieve the handle of service and characteristic of that service form an already initialized BlueNRG-MS module. I need to do this for the following scenario:I initialize a BlueNRG-MS module, add some services and characteristics to it and then shutdown the external processor while the BlueNRG-MS module is still running in initialized state and advertising. Then I connect to the BLE module through an Android App and the module sends a wake-up signal to the external MCU via SPI-IRQ pin. The external MCU wakes up but we do not initialize the BLE module again as it has been already initialized and is directly connected to the Android app. Now, to update the values of characteristics we need the characteristic and service handles but as the external MCU has restarted, we have lost those handles and thus can't update the characteristic values without handles. Is there any way that we can get those handles from the BLE module after the ex

Posted on May 07, 2017 at 08:03There are new laptop computers out that have very high Dot Per Inch (DPI) screens. They use display scaling to make things look the right size. Unfortunately, BlueNRG GUI does not work with the displays and is almost unusable. My understanding is that some flags can be set to allow the Windows OS do the scaling for you if the app does not support scaling: http://www.hanselman.com/blog/LivingAHighDPIDesktopLifestyleCanBePainful.aspxCould you please update BlueNRG GUI?

Posted on May 03, 2017 at 11:18Hello，        My question is about BlueNRG-1 .I want to design a about bluetooth master and slave Fixed PIN pairing.But the Fixed PIN seems to be no effect.Specific how should do?Thanks !

Posted on April 26, 2017 at 14:51Hi.So I'm trying to send large amount of data to server (~200kB). I can send and receive smallish amounts ok (<2k), however at 3k the send fails. I'm sending data in 1000byte blobs to respect the 1021byte limit in the socket code.I've added delays and tried smaller sends also, but no luck so far. I coudn't find any applicaple callback to syncronize fe 2k transfers.How should I handle this sort of situation?+WIND:1:Poweron (170111-665d284-SPWF01S) +WIND:13:ST SPWF01SA1 IWM: Copyright (c) 2012-2016 STMicroelectronics, Inc. Al.+WIND:3:Watchdog Running +WIND:0:Console active +WIND:32:WiFi Hardware Started+WIND:2:Reset +WIND:1:Poweron (170111-665d284-SPWF01S) +WIND:13:ST SPWF01SA1 IWM: Copyright (c) 2012-2016 STMicroelectronics, Inc. Al.+WIND:3:Watchdog Running +WIND:0:Console active +WIND:46:WPA: Crunching PSK...+WIND:32:WiFi Hardware Started +WIND:21:WiFi Scanning +WIND:35:WiFi Scan Complete (0x0) +WIND:19:WiFi Join:xx.xx.xx.xx.xx.xx +WIND:25:WiFi Asso

Posted on January 30, 2017 at 18:15With the BlueNRG-GUI the ACI_GAP_INIT command returns a 'Status' value but in http://www.st.com/content/ccc/resource/technical/document/user_manual/6d/a1/5b/6c/dc/ab/48/76/DM00162667.pdf/files/DM00162667.pdf/jcr:content/translations/en.DM00162667.pdf, this return parameter 'Status' is missing.

Posted on April 29, 2017 at 15:26Hi,I connect to the SPWF01 via IPv4 and a port forwarding in my router. It works fine, as long I have a IPv4 router / internet connection. When I have a IPv6 connection and DS-Lite it doesn't work. So, is there a possibility to update the SPWF01 for IPv6?Best regards,Florian

Posted on May 02, 2017 at 06:49Dear Developers,      if Any of you tried writing .dts (device tree) file for spirit1(X_NUCLEO-IDS-01A4) Radio Module,give suggestions for writing it.

Posted on March 25, 2016 at 06:07I have a X-Nucleo-IDW01M1 board on a Nucleo-F411re board. The board was working fine with some of the example projects. Suddenly it keeps going in and out of deep sleep with the red and blue LED going on and off. Tried to use AT command to set it back to factory default but no luck. Can you advise me how to recover the board?

Posted on March 28, 2016 at 21:15Hi,why after the aci_gap_set_discoverable and after the implementation of aci gap create_connection team advertising disappears and the connection is not established? But if carried out in the reverse order it works.P.S. Bluenrg-MS (Stack mode 3).

Posted on April 27, 2017 at 09:52Hi,I'm currently using the SPWF01SA module to make a POST request on a server. My tests using http://httpbin.org/ went smoothly, but as soon as i try to make the request on the actual server, it responds with an error 307 (temporary redirect). My fear is that the server is forcing me to make a secure connection (as in forcing me to make the request on ' instead of ').I tried using the entire uri ('') as an argument of the AT+S.HTTPREQ command, but in that case the module is responding with 'host not found'.So i guess my question is: is it possible to force the request to be on a secure connection? Or should i avoid the issue by manually opening a secure socket and then writing my request?Thank youMatteo#http #spwf01s

Posted on April 25, 2017 at 14:09I am using an X-NUCLEO-IDW01M1 module to which I send AT commands and I want to authenticate in Firebase.I open the socket and send the information, but the server always responds with an error.Can you help me?

Posted on April 27, 2017 at 07:38Dear Developers,        For spirit1(X_NUCLEO-IDS-01A4) , DEVICE_INFO register does not providing much more information about Device part number & version , is there any register Level validity to confirm that shield / Radio IC is 868 or 915 Mhz or any other Frequency shield.

Posted on April 12, 2017 at 20:48Hi,I have noticed that it is not possible to have multiple ACI_GATT_WRITE_CHAR_VALUE per connection event.I have set up the following connection: connection interval of 40ms and connection event length of 21.875ms (the maximum I can while continuing to advertise in parallel).Using a sniffing tool, I see that what is happening is the following:- Master -> Slave : Write Request- Wait for 40ms (next connection interval)- Slave -> Master : Write Response- Wait for 40ms (next connection interval)- Master -> Slave : Write Request- etc.Is that a normal behavior? Why isn't it possible to have the Write response inside the same connection event, and more write reqests?Note that if I use ACI_GATT_WRITE_WITHOUT_RESP (Write command), I don't face the issue, and it's possible to send multiple ones inside the same connection event (around every 700us)Thanks for your help.Christian#bluenrg-ms

Posted on April 26, 2017 at 19:45Hi.....i have worked  with 'Getting started with the Contiki OS/6LoWPAN on STM32 Nucleo with SPIRIT1 and sensors expansion boards' and have been successful in creating a 6lowpan network and getting access of the sensor readings on COAP client through sensor-er-rest-example......the thing is that i want to create an application so that i can get the readings of an untrasonic sensor connected to one of the GPIOs of the nucleo board ....but i am not sure how to open and modify the sensor-er-rest-example project in a compiler (eg:keil).... Can any one plz help me find a solution for this , or provide me with a project where i can get to access the sensor data on COAP in 6lowpan network.

Posted on April 11, 2017 at 11:42Hi There , We are currently working on a project using an EEPROM to store sporadic data. The eeprom is a 24AA512 with 512kbits memory, from Microchip.We use it to store datalogging data from our application. The problem is that we sometimes also need to store only 3-4 bytes data and that this eeprom does page or byte write operations identically, meanning that a full page of 128bytes is refreshed even if I choose to write only one byte in a page area, reducing the endurance of the full page of one cycle everytime. This might cause a problem in our application.Could anybody tell me if that is the case too in chips of ST , as the M24512 or M95512 for example? does every single byte write means that the full page has to be refreshed? That point doesn't seem to be clearly defined in the datasheet...thanks in advance for any help.Eric#endurance #byte-write #page-write #eeprom