Others: hardware and software

For the current BlueCoin Starter Kit model, does it have the ability to record audio onto an SD card while also allowing you to monitor the audio being recorded through headphones or speakers in real time? If so, could you please explain the steps to usethank you for answer.

I would like to know where the configuration set in STVP is stored.I'd like to set the configuration automatically, but I don't know where the default storage address is.  

Hello,Hello,I am using STLINK V2 & using SWD for flashing. Please can you confirm if Tag-Connect ARM20-CTX & TC2030-IDC are compatible to STLINK V2.

I'm using the ST Visual Developer V4.3.12 and trying to do what sample stm8s code suggests, namely set a breakpoint on TRAP interrupt (which I am 99% sure it tripping because of a bug in my code).  The debugger keeps "moving", i.e. removing the breakpoint.What do I have to do to stop this happening?  FWIW I am copying the ST peripherals library code so this is the interrupt routine:/** * @brief TRAP Interrupt routine * @PAram None * @retval None */ INTERRUPT_HANDLER_TRAP(TRAP_IRQHandler) { /* In order to detect unexpected events during development, it is recommended to set a breakpoint on the following instruction. */ }

How do I correct this code so that the pointer is a constant and not place into RAM?```const typeOfVariable Variable = DEFINED_VARIABLE_VALUE;const typeOfVariable *pVariable = &Variable;````pVariable` keeps ending up in RAM and I've run out of ideas :-(.Thanks!

Hi, I have create one adjustable multi vibrator circuit using 555 timer IC my aim is to achieve two things  1.Basically 555 timer IC output is Rectangular wave my aim is achieve ontime of one pulse 0-10us(Micro seconds) time delay  2.Another one is one pulse to another pulse generating time 10ms(Milli seconds ) So, How to achieve  this I am tried changes in resistor and capacitor value but  did not get proper time delay. I also Attached the circuit in below in document format .

Hi, When I connect a digital radio via the USB cable, Device Manager should show under USB: STM Device in DFU mode. However, it doesn't. Instead, I have an Other Devices: Digital Radio in USB mode, with a yellow triangle with black exclamation point. What do I need to do to get this to work?

Hi all and good time :hand_with_fingers_splayed:can U help me please?i'm confused about this part with the (UM smd code),i searched a lot on google and but i found only 2 parts with this smd code... (zener diode and tvs diode) !!:thinking_face:my first find --> zener diode Bzx84j-C5V6 SOD-323and next my find -->(TVS Diode) with part number (SMAJ15CA)i got crazy:face_with_rolling_eyes:.. which one should i choose????.i really need your help:eyes:T H A N K  YOU So sO So MUCH:folded_hands::smiling_face_with_heart_eyes:(mazie) 

Hi,I'm designing a PCB that can get 8 digital inputs and 4 analog inputs. But these inputs can be range from 3.3v to 24v. For the digital inputs I have used universal logic shifter method using comparator where I can give any voltage range of digital inputs and I get 3.3v digital output for the stm32 controller. Likewise, is there any method to get analog inputs with that flexibility. I have tried op amp with attenuating method but each time I have to change the resistor values according to the voltage I'm giving. Is there a method to get analog inputs to stm32 ADC pin with the flexibility to use 0-24V voltage range analog inputs without changing any hardware like the digital input circuit?  

I'm looking to add a serial EEPROM to a product, and have a somewhat odd situation. The device will loose power spontaneously and often (few times an hour). My question is: What happens if the M24C01-R looses power during a write operation?  I assume at least that byte will potentially be corrupted, but does it have any other effects?   What about if I write a whole page? Will the whole page be erased before the writing starts ?  ( Of course I'll add CRC checks on the data so I know if I can trust it or not )

Hello community,i have trouble to identify a defect power semiconductor from ST.The package is TO-220 and is marked with "GF309VW" and the ST-Logo. Can anyone identfiy the device?Thanks in advance!

Hello,i have the inemo-m1 board,  bought waaay back in 2015... back then i remember i managed to work with some sample code from ST.However years have passed... and would be great to find a download location for the sample code.I have tryied searching the internet and ST website, but did not find anything... probably is such a old code...Would be great to find it again... Thank you very much

Hi,Where can I get the STSAFE-A110 user manual?As I couldn't find it on the ST website.  

Hi, I bought me some mini mp3/wav players frome china. Serial communication is executed at a fixed baudrate of 9600baud. Messages to and from the unit do both have a size of 10 bytes. Transmitting serial messages works perfect. Receiving messages do not work. I use the UART1 RX interrupt vector 18 which is executed if the receive data byte buffer (UART_DR) is not-empty. I put a PC3 pin-toggle in the receive interrupt handler after the data (UART_DR) register is read. On my logic analyser I see that the pin toggle takes more time per received byte. I measure the time between the end of the first received STOP bit and the PC3 toggle being 354us which to my opinion is awfully long... With each received byte the time between de end of the STOP bit and a PC3 toggle increases. At byte 6 it is 870us and then PC3 starts oscillating (9us) as if the data (UART_DR) register is not read anymore and contains an unread value. I disabled all other interrupts. What could be going on?

Hi,The datasheet of the M95M04-DR 4-Mbit serial SPI bus EEPROM (https://www.st.com/en/memories/m95m04-dr.html) mentions on page 24 the device is implementing "Error correction code (ECC x 4)".What is the method to be impelennted on the microcontroller to be informed when the ECC did (or even did not) correct an internal error.I want to use this information to predict some kind of wear level for that memory group.And may be release myself of the burden to implement CRC checks on my data myself.ThanksStefan

HiI using STM6601, but my device only has only one button. I want to get a reset with a long press, but the datasheet says that the SR input cannot be connected to ground all time.Perhaps there is another way to reset?

I have the following questions and need help:1. Can this transistor be used at a frequency of 900kHz? Can it only be used in frequency bands above 1MHz?2. The data sheet provides a test circuit under 30MHz conditions. We do not fully understand the functions and principles of the FB2 and T2 components. Can you explain it to us? We guess that the function of this component should be for impedance conversion. Can the FB2 and T2 components be replaced with a simple and easy-to-understand transformer impedance conversion form (FT-43 core) like the previous stage?3. Is the output of the 30MHz test circuit given by the data sheet sine wave? L1, L2 should play a low-pass filter, but I see its winding method did not understand, can you explain?4. We want to imitate the 30MHz test circuit and apply it directly to the production environment. Are there any other issues worth noting during this process?

Hello,I'm having some problems with the M95M01 EEPROM.Firstly, I had a problem where after the writing the data to the EEPROM was not consistent with the read made afterward. I could narrow down the problem to be related to the way that I'm monitoring the Write-In-Progress bit.My first approach was checking the WIP register in a loop to see when can I write the other pages (polling the CS pin up and down between each check). This causes the data to be corrupted and getting the inconsistency referred above.The other approach was checking the WIP register in continues read operation without polling up and down the CS pin. With this approach all was ok and the data is consistent every time.Can someone validate this behavior?This is not documented on the datasheet. 

What steps are required to set stwlc98 to TX mode?If you set 0x0020 to 01, 0x000E becomes 03.However, AC1 and AC2 do not cause burst oscillation.The Optional (TX mode only) circuit is on the board, and VOUT is connected to 5V.

Hi,Please share the reliability data (FIT / MTTF) of STWD100YNYWY3F

I am using ST72F264G2 controller & flashing the code using Raisonance R-Link debugger through STVP tool. I want the "CSS" bit of option bytes to be disabled, but there is no such bit to configure in the GUI of the STVP tool. I tried various methods as given below: Tried configuring the option bytes through the "option.s" file, but the values are not getting reflected in the binary file as set in the "option.s" file i.e. I want the value as Option Byte 0 = 0x40 & Option Byte 1 = 0x04 but the value reflected is Option Byte 0 = 0xF4 & Option Byte 1 = 0xD0. So, I changed the values of the respective addresses in binary file as required (Option Byte 0 = 0x40 & Option Byte 1 = 0x04) & flashed that file. Now the option bytes value is getting reflected in "OPTION BYTES" GUI of STVP tool as required, but it shows "CSS" bit as enabled (i.e. Option Byte 1 = 0x44 instead of 0x04).   I also tried writing the option bytes through the programmer in STVD IDE but facing s

I would like to know about soldering of M174 package like SD2931.Under what conditions does STMicro specify soldering time and temperature?

4/19 Model: M24C16-RMC6TG，mfr name:STM(意法)，marking?income Marking:"4DRT" ，Is the main screen printing correct？   

Hi,We have a few questions for the M24M01-DFMN6TP.Is this part still active?What is the estimated year to EOL for this part?Thanks,Andy  

Hi Team, I am looking for an I2C EEPROM (or any I2C slave device) that supports 10-bit addressing scheme. Can anyone suggest any device? Thanks,