Interface and connectivity ICs

I'd like to use the ST202/ST232 as a drop in replacement for MAX202/MAX232 devices. In my design, the V+ output is connected to GND (via capacitor) as suggested in the datasheethttps://www.ti.com/lit/ds/symlink/max232.pdfWhereas the ST datasheethttps://www.st.com/resource/en/datasheet/st202eb.pdfhas V+ output connect to VCC (via capacitor).Does the ST202/ST232 also allow for V+ to be connected to GND (via capacitor) or is is better to adhere to the application example? In other words, can I use the ST device as a drop in replacement or do I have to redesign?Thanks a lot.Dan

I followed the webinar "Discover our STM32 security ecosystem, from theory to practice online workshop".I had to use the module BlueNRG-M2 , is there a package or other to implement firmware update security in this module?Thank you

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I know there is an Application Command interface for the BLUENRG-M2. Is it similar to AT commands? I did not foud anything about AT commands in their documentation

Hey. I am planning to buy BlueNRG-2 development board and learn programming the bluetooth module. I have been looking for the information on how do you actually develop the code for the bluetooth module and what IDE do you use but cannot find any information about that. For programming STM32, I use stm32cubeIDE and Keil. Can I use these programs to program/debug BlueNRG-2 modules? I appreciate the answer please can someone confirm

Hi everyone!I have a custom PCB with a STM32L4 connected via SPI to a SPBTLE-1S. As indicated in the datasheet the SPBTLE-1S is built around the BlueNRG-1 SoC. Until now I understood that I have to configure the SPBTLE-1S as a network co-processor in order to allow it's usage on a custom PCB.In the DT0121 Design tip (How to configure the BlueNRG-1 and BlueNRG-2 devices in network coprocessor mode) document is written:"The purpose of this design tip is to provide customers with guidelines on how to modify the reference DTM application for running on a custom printed circuit board (PCB).",an than,"In order to configure the BlueNRG-2 device as a network coprocessor, the device shall be programmed with a specific application, named DTM (Direct Test Mode). In the device SDK the source code for this application can be found in the path “\Project\BLE_Examples\DTM�?."In the description of the SPI interface the following table can be found:In the SPBTLE-1S datasheet the pins seem to be configur

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Hello,I have the SampleApp running with the BlueNRG-2 firmware on the X-NUCLEO-BNRG2A1. When I reflash the X-NUCLEO-BNRG2A1 with the BlueNRG-2N firmware the SampleApp stops working. It runs again when I switch back to the original firmware.BlueNRG-2 firmware used:DTM_SPI.hexBlueNRG-2N firmware used:BlueNRG_2N_FW_V3_2_0.binAm I missing some configuration steps or something else completely?Best regards,Steven

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Good morning,I'm trying to connect the SPBTLE-1S module to my nucleo board, but it seems that the BLE module is not recognized. Using the BlueNRG GUI, I am able to get only the Motherboard FW number, instead the BLE device is not detected. Is it possible that the SPBTLE-1S is not programmed? I've tried also to program the BLE module itself, but without any positive results. Can you provide some detailed guidelines in order to connect the SPBTLE-1S module to my nucleo board and eventually program it with the last FW available?Thank you in advance.Carlo

Hello,I have X-NUCLEO-BNRG2A1 module, running the BLE2 sample application with some modification. I mannage to connect to the module with my Windows PC.I would like to send data to it using a COM Port. But the Bluetooth is not seens as a COM port. I could note change it in windows option.It seems that device add to "show" the "Standard Serial over Bluetooth" capabilities.Any one knows how to add it? I could not find such a function in the SampleApplication and BLE stack.Thank you

DK version：BlueNRG-1_2 DK 3.2.1Project：ST\BlueNRG-1_2 DK 3.2.1\Project\BLE_Examples\BLE_Chat_Master_SlaveI tried to change the two channels in the routine to be writable and notifiable, but the serial port message showed that adding service failed.I found that if you include notifiable attributes in both channels, the addition of services will fail. How should I modify it?

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Hello Sir/Madam,Product PN: STWD100xY.Problem: The problem is not with the actual product itself, but with the datasheet. The existing datasheet makes it very difficult to determine if the product is suitable for our application. For the value for the parameter [Watchdog timeout period, tDW] we are looking for a variation of less than +/-5% from nominal, for constant Vcc (3.3V) and constant temperature (25C).The problem is that the datasheet seems to show that the initial value for the parameter [Watchdog timeout period] is very wide: 1.6s typ, but can be as low as 1.12s and as high as 2.24s, a variation of -0.48s (30%) / +0.64s (40%). (refer datasheet, Table 4 on page 13, refer image below with link). We can accommodate some level of manufacturing tolerance, but -30/+40% is just too wide, we need a tighter range.Note 1 of that datasheet table seems to indicate that the wide variation is due the Test Conditions, which are:a) temperature, -40 to +125Cb) supply voltage, Vcc: 2.

In the programming Bluetooth ble stack manual it says :The BlueNRG-LP device does not have a valid preassigned MAC address, but a unique serial number (read only for the user).The unique serial number is a 6-byte value stored at address 0x10001EF0: it is stored as two words (8 bytes) at address 0x10001EF0 and 0x10001EF4 with unique serial number padded with 0xAA55.Now in the APIs given for the same there are two functions in the file bluenrg_lp_ll_utils.h,to get the value from 0x10001EF0 and 0x10001EF4.The UID_BASE_ADDRESS is 0x10001EF0./** * @brief Get Word0 of the unique device identifier (UID based on 64 bits) * @retval Word0 of UID64 */ __STATIC_INLINE uint32_t LL_GetUID_Word0(void) { return (uint32_t)(READ_REG(*((uint32_t *)UID_BASE_ADDRESS))); }   /** * @brief Get Word1 of the unique device identifier (UID based on 64 bits) * @retval Word1 of UID64 */ __STATIC_INLINE uint32_t LL_GetUID_Word1(void) { return (uint32_t)(READ_REG(*((uint32_t *)(UID_BASE_ADDRESS +

Hello,I have two X-Nucleo-BNRG2A1 demo board, with Nucleo Board, working fine with the SampleApplication of the X-CUBE-BLE2.The two module pair correctly, one being the Master, sending message to the slave.I would like now to use another device to connect to the X-Nucleo-BNRG2A1. I can see the bluetooth one the other device, but when trying to connect, it ask for a Key.What is the Key, or how to read it? Is there a way to enable Key free connection?Thank you

Hello people , we need some help from ST for solving the ST7538-Q interfacing with SPI .I don't even no where I have to ask the question .currently I am working in powerline communication using st7539-q and we are trying to communicate ST7538 -Q via SPI interface using this pins RX( MOSI),TX(MISO),CLR/T(SCLK), RxTx and REG_DATA for selecting the transmission (or) reception (or)control register read (or)control register write I can selecting using this pins (REG_DATA AND RxTx).....LIKE 00,01,10,11TB= 417 Micro secondsTCC=2*TB=834 Micro secondsTCR=TB/4=104.25 Micro seconds we are doing the as per the SPI clock diagram and and with this timing but we cant get nothing in the RX(MOSI)..Actually in datasheet they told if we do like SPI CLK DIAG we get some internal control register value but our mosi pin only on high nothing it will send..... do you have a source code send it it will helpful for us thank you Plz give some response because we are struggling with in it .

I am using BLE Chat application where I have added the bonding feature. When I don't use OTA, I can connect to the device and bond it and the bond information stays even after reconnecting to the device.But when the OTA is enabled, once I connect to the device and bond it and disconnect it the bond information is getting erased and the device is again asking to bond on reconnection.

If so , does anybody have a reference for how this would work? I found this chip based on the description from the Tinyduino bluetooth module on their website: https://learn.tinycircuits.com/Communication/Bluetooth-Low-Energy_TinyShield_Tutorial/. I was just wondering what additional interfacing would require to get this connected to an Arduino or just an ATMega chip. I'm not great at making circuits so any advice or help would be fantastic! Or just references to resources too :)

We purchased STMIPID02 couple of years ago and currently we want to support MIPI D-PHY v2.5 and MIPI CSI-2 v3.0. The STMIPID02 is too old and no similar chip updated in your solutions. Do you have any plan to deliver MIPI solution similar with STMIPID02 to be compliant with CSI-2 v3.0 and D-PHY v2.5?