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What is the actual backup input supply voltage range for Teseo LIV4F receivers? Datasheet says that it is 3-3.63V which is really high and doesn't make sense to add any Lithium battery as a backup supply because it will very quickly drop below 3V at the beginning of operation (CR2032/CR1220). But X-NUCLEO-LIV4A1 (https://www.st.com/resource/en/data_brief/x-nucleo-liv4a1.pdf) has a place for CR2032 battery socket and even diode D2 in series on which will be some extra voltage drop. So the question is it a mistake in board design or the actual minimum VBAT voltage is less than it's written in the datasheet? In the second case, it's a drawback of these receivers, at least for my use-case.

Don't know weather my Stm32F405 (new) needs a bootload or not? I have designed a custom stm32 board in order to detect my stm32 by the computer for the code uploading i connected my stm32 externally with a TQFP breakout board with my ST-LINK V2 , all the necessary connections have been made after that when i try to connect it on stmcubeide i shows can not connect i tried it with stm32 utulity software as well same result arise. when powering my stm using st link or external power all the vdd pins are getting 3.29v while the vcap is 1.2v and 1.6v (2.2 uf capacitors) . i just want to make sure that i am doing correct wiring or not and if yes then what is the bootload issue? is that need to do the bootloading externally in this picture ignore all the connection except power and swclk and swdio connection...thankyou in advance   ? 

Hi,          (STM32G0C1RET6  for this part number ARM® Cortex®-M0+ STM32G0 Microcontroller IC 32-Bit Single-Core 64MHz 512KB (512K x 8) FLASH 64-LQFP (10x10))two type of pin descriptions have mentioned in the datasheet, I confused which one I have to take for "STM32G0C1RET6" this part and which pin I will for watchdog timer so kindly help me. Find the screenshot for your reference.   

I download firmware in s19 format via STVP program.I would like to know how to check the checksum of firmware via STVP_Cmdline.How can I check it through the command?

When I do a "Rebuild all" of a new, blank project, I get the following errors:----------- Project test - STM8 Cosmic - Configuration Debug -------------Removing intermediate files ... Done!----------- Project test - STM8 Cosmic - Configuration Debug -------------Compiling main.c...cxstm8 +debug -pxp -no -l +mods0 -pp -i"C:\Program Files (x86)\COSMIC\FSE_Compilers\Hstm8" -clDebug\ -coDebug\ main.c #error cpstm8 C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\HSTM8\mods0.h:1 FlexLM Invalid host.main.c: The command: "cxstm8 +debug -pxp -no -l +mods0 -pp -i"C:\Program Files (x86)\COSMIC\FSE_Compilers\Hstm8" -clDebug\ -coDebug\ main.c " has failed, the returned value is: 1exit code=1.test.elf - 3 error(s), 0 warning(s)When I do the same in a VMware installation, there are no problems.When I modify the the license file on the VM, I get a different error: ...#error cpstm8 C:\Program Files (x86)\COSMIC\FSE_Compilers\CXSTM8\Hstm8\mods0.h:1 FlexLM Invalid (inconsistent) li

Hi, I'm using a timer to create a software delay on a high prio task (HPTask with FreeRTOS).The MCU used is STM32H755ZI.My target is:use a timer and arm an interrupt which duration will be 250 usec;suspend the HPTaskon the timer END PERIOD interrupt restart the HPTaskTo reach this result I used TIM17 and OnePulse API.This is my setup on main from CubeMX:htim17.Instance = TIM17;htim17.Init.Prescaler = 200;htim17.Init.CounterMode = TIM_COUNTERMODE_UP;htim17.Init.Period = 10000;htim17.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;htim17.Init.RepetitionCounter = 0;htim17.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;if (HAL_TIM_Base_Init(&htim17) != HAL_OK){ Error_Handler();}if (HAL_TIM_OnePulse_Init(&htim17, TIM_OPMODE_SINGLE) != HAL_OK){ Error_Handler();}This is my setup to generate the delay:HAL_TIM_Base_Init(&htim17);HAL_TIM_Base_Start_IT(&htim17);HAL_TIM_OnePulse_Start(&htim17, 0U);Now...  I reached something that is usable but not exactly what I

HI STM team,I am using NUCLEO-F439ZI BOARD. I am new to this board. According to the basic configuration the ETH selection shows the warning symbol, reference based on the internet example, the ethernet configuration it does not show the PHY Address option. while I choose RMII mode. The portB _PIN0 select as GPIO output, but that same pin is used for ETH_RXD2, this selection makes the warning symbol. when I bye-pass warning and use the program for pinging it shows the connection failure and timeout error message. The below code is used to ping the Ethernet connection.extern struct netif gnetif;  ...........MAIN.......... while (1) { ethernetif_input(&gnetif); sys_check_timeouts(); }The problem screen shot was attached below.   the LWIP setting also attached below notify the mistake done by me, if any example to learn this one, send the link/example code.

Hi, For some time now I was using cheap bluepill and stm32f030-demo boards to debun my project with st-link probes. It all works perfect. But recently the stmf030 become too small, so I decided to replace it with stm32f070 (same tssop20 package as original stmf030) ... and problems started: 1) I use linux Debian-12 with gcc/gdb/openocd toolchain 2) first stm32f070 I've burned with my code using gdb "load" command. It is now completely unaccesable fo st-link ... although my code works just fine (the code uses USART1 as sort of a "console", and blinks the LED as it should). 3) I've taken it out off the board (unsoldered) and replaced it with another brand new stm32f070, this time I've used usart1 bootloader to burn up the code, 4) this time the code works, st-link can connect, and even gdb using st-link and openocd is able to repeatedly burn new versions of code .... only it cannot restart the chip. The chip always restarts in "bootloader mode", its IP=0x1FFFxxxx istead of 0x08000xxx and

Hi, I collecting values from ADC using DMA in my STM32H750BVT. And it have too big repetetive spread in every pin which I checked. Attaching ADC measurments array, attaching graph (y axis is bits and x axis is nr of conversion): 0 bit results it's issue of copying data to excell, don't pay attention on that. That's my understanding of problem: Internal capasitor of ADC is charging and after that ADC starts conversions which slowly discharging it, after some deadtime that capasitor is recharging.My question is how can I setup ADC to let it recharge capacitor afrer every conversion in DMA mode?Didn't I wrongly defined root cause, did I? 

i am working with stm32 h750vb and i successfully wrote a winbond W25Q128JVSIQ external loader and it works fine on the cube programmer but when i use the cube ide i found that it successfully erase the external flash before file download and fails to write sector 0 so i found the problem was that i am using the time base source on the external loader was TIM2 and after changing it to systick the cube ide succussed to start writing to the external flash but now i get data mismatch at 0x90008900 on both cube programmer and on the cube ide with the edited external loader unlike the one before and all  the data after this address is corrupted  . i tried many things but didn't manage to make it upload the data successfully, any help will be appreciated.

Hello,I am using STM32U599VIT6Q for my project and I am unable to flash the MCU. When I turn on the board it consumes 50mA. Also, I am not using SMPS so I have connected the pins (VDDSMPS, VDDLXSPS, VDD11, and VSSSMPS) to the GND. Whenever I try to run the code it says cannot connect to the device.  The boot0 pin is pulled low and I have NRST pulled high on board and I connected it to the oscilloscope and found that the pin goes low when Jlink tries to flash.  Supply to the MCU is stable with 3.3V.  Schematics is attached below for reference Are SMPS pins a problem? Are they must use for this MCU? Could you please help me with what could be a problem?

Hello!I have an STM32F405RGT6 MCU with a custom PCB. I have some trouble with my GPIO pins as they only seem to be high.  I am using the STM32CubeIDE software and have configured all GPIOs. I having trouble with PA12 and PA15 in particular. See GPIO Mode and Configuration:I use pin PA12 (MD1_AIN1) and PA15 (MD1_AIN2) for the choose the direction for a DC motor. In the "gpio.c" file I have the following code:As seen both PA12 and PA15 should be RESET = LOW. Here is the configuration further down in the code:  I have tried writing: HAL_GPIO_WritePin(GPIOA, MD1_AIN1_Pin|MD1_AIN2_Pin, GPIO_PIN_RESET); also in the main.c file but did not seem to work. I measure with my multimeter between ground and MD1_AIN1 3.3VDC and also between ground and MD1_AIN2. See drawing for motor driver: Drawing for MCU (under Digital Out): Does anybody know why there I have constant 3.3VDC over PA12 and PA15? Thank you.     

Good morningI am about to receive a Nucleo F446RE board.I'd like to add a 5V power supply, not using only the USB power supply.Can I give the supply from an AC/DC converter (220V AC to 5V DC)?Can I connect it directly to the board?Do I need to connect it in series with a resistor? Which value for the resistor?Do I need to connect it in parallel with a capacitor, to protect it?Thanks to anyone who can help.

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 @RomainR. @mƎALLEm  UPDATE 04/30/24:I no longer believe this is a debugger only problem. CM7 is always successful in flashing and debugging or running.The ST Link GDB Server cannot flash the CM4 in either debug or Release mode. Please see attached file CM7_CM4_Release_Mode_Output.txt.=====================================================================================UPDATE 04/29/24:After spending 3 hours writing up all of these details below, I came back at the problem the next day with a fresh approach. I decided to see if I could get just CM7 running in both projects. Here is what I found.CM7 is indeed being flashed properly from both projects. It is hanging in the debugger for both projects because the CM4 will not start (see CM4 DEBUGGER FAILS TO RUN below). It gets stuck in an infinite loop which makes perfect sense because CM4 is not running.    /* USER CODE BEGIN Boot_Mode_Sequence_1 */ while(__HAL_RCC_GET_FLAG(RCC_FLAG_D2CKRD

I urgently need to free up space on Windows and this folder weighs about 20gb.Obviously I plan to save all these files in a flash drive before deleting it, to avoid any kind of problem,But I ask you what is this folder, what files it contains and if I can delete all or some of them .. maybe keeping the most recent versions ? 

Hello, ST expert CubeMX generated software framework is used for our STM32U595VJT6 based hardware design. It works well but for the low start up time. It takes almost 1 second between 3.3V is stable and the flag GPIO turns high in MX_GPIO_Init. Is there any suggstions on this problem? BRYang

I am fresher here for the ST cube IDE i am trying to debug my code but it showing this error msg

I am generating PWM signals for 4 channels using TIM1, with 2 complimentary outputs. The CCR values should come from an array lookup table via DMA.  is this means The DMA trigger by TM1 ?    I am trying to generate a sinewave from the following array uint16_t sin_table[160]={0, 5, 10, 15, 20, 25, 29, 34, 39, 44, 49, 54, 58, 63, 68,73, 77, 82, 87, 91, 96, 100, 105, 109, 113, 118, 122, 126, 131, 135, 139,143, 147, 151, 155, 159, 162, 166, 170, 173, 177, 180, 184, 187, 190, 193,196, 199, 202, 205, 208, 211, 213, 216, 218, 220, 223, 225, 227, 229, 231,233, 235, 236, 238, 239, 241, 242, 243, 244, 245, 246, 247, 248, 248, 249,249, 250, 250, 250, 250, 250, 250, 250, 249, 249, 248, 248, 247, 246, 245,244, 243, 242, 241, 239, 238, 236, 235, 233, 231, 229, 227, 225, 223, 220,218, 216, 213, 211, 208, 205, 202, 199, 196, 193, 190, 187, 184, 180, 177,173, 170, 166, 162, 159, 155, 151, 147, 143, 139, 135, 131, 126, 122, 118,113, 109, 105, 100, 96, 91, 87, 82, 77, 73, 68

Hi, I want to make a costume PCB board with the STM32WBA52CG on it, where can I find the reference schematic to make it work?  Thanks in advance!  Kind regards,  Mats 

Hi everyone,I'm a beginner in electronics design but I'd like to create my own PCB.I've designed a schematic around the STM32F0 microcontroller and would greatly appreciate any feedback you might have.The setup involves a board with one transmitter and five receivers, along with diodes to create a mini-game, nothing fancy here as the point is mainly to tinker with STM32 MCU.Few comments :I've included ESD diodes as the receivers/emitter will likely come into contact with the external environment.I'll handle user button debouncing in software.The whole system is powered by a VCC=3V3.I'm attaching a photo of my electronic schematic so please let me know if there are any errors, missing components, or possible improvements. I'm looking forward for your feedbacks, thank you so much in advance for your help!  

Hello I just started with programming Nucleos and I tried to establish a UART communication with my laptop. So the problem is I can only select USART1 when i open my connectivity tab in IOC file. And to use USART1 i have to unsolder those 2 resistors on SB27 and SB32 and solder them to SB31 to SB32, am i correct? That would we my last option. I am just wondering why i cannot use or even select USART2 in the first place. I am using NUCLEO-C031C6. Has anybody faced that kind of problem? Any tips or solutions are welcome.     

I have a board with STMU5A5, as LQFP64, and I am thinking to substitute (just) the MCU with a STM32H5xx one (also as LQFP64 package, because it is faster (250MHz instead of 160MHz)).After checking the pinout and datasheet - I came to one conclusion and one question (just to confirm).Conclusion:I have STM32U5 as LQFP64 with SMPS option (hard to order the LDO version). The STM32H5 has also a LQFP64 package:BUT: just as LDO version, not as SMPS!SMPS is just available from LQFP100 upwards. "rrrrr" (so, I cannot change, without to modify PCB)Question (please confirm):My STM32U5 LQFP64 has an USBVDD pin. But the STM32H5 LQFP64 does not (just all as VDD).Does it mean?:"USB (via the internal FS PHY) is not possible on a STM32H5 LQFP64?" (because no power to USB PHY)Or is there an internal bonding from VDD to VDDUSB so that USB would work?But it remains another conclusion if so: VDDUSB needs at least 3.0V. So, I cannot run STM32H5 with 1V8.Is my assumption correct?:a) no USB on STM32H5 LQFP64?b

HI,I set TIM5 up to trigger every 1us (APB1 42MHz) with the below function and I expect HAL_TIM_PeriodElapsedCallback() to be invoked every 1us but that's not the case. How do I make sure that the callback gets invoked properly?My init function:static void manual_TIM5_Init(void){ __HAL_RCC_TIM5_CLK_ENABLE(); // start the Timer5 clockTIM_ClockConfigTypeDef sClockSourceConfig = {0};TIM_MasterConfigTypeDef sMasterConfig = {0}; htim5.Instance = TIM5; htim5.Init.Prescaler = 1; htim5.Init.CounterMode = TIM_COUNTERMODE_UP; htim5.Init.Period = 20; htim5.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; htim5.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;if (HAL_TIM_Base_Init(&htim5) != HAL_OK){Error_Handler();}sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;if (HAL_TIM_ConfigClockSource(&htim5, &sClockSourceConfig) != HAL_OK){Error_Handler();}sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;if (HAL_TI

Hi everybody,I was looking at the documentation for the MCSDK6 (great work btw), in particular to the Motor Control Protocol Suite section.Everything is well documented, however, I was wondering if is there any DLL available in order to facilitate the communication between a PC application and the microcontroller.Thank you,Andrea.