Solved

I'm trying to blink variation of morze code with specific string on yellow led, but the led just turns on and stays on for a little bit and then turns off.When I try to debug it step by step it works as it should, but the moment I press run, it does the same think. If anyone can shed some light on this, I would really appreciate it!Thank you! char* name= "text"; char *string; /* USER CODE END 2 */   /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { for(;*name!= '\0';name++) { string = morze(*name); for(int i = 0;string[i] != '\0';i++) { HAL_GPIO_TogglePin(GPIOE, GPIO_PIN_1); if(string[i] == '.'){ HAL_Delay(500); }else if(string[i] == '-') { HAL_Delay(1000); }else { int a = 0; } HAL_GPIO_TogglePin(GPIOE, GPIO_PIN_1); } } /* USER CODE END WHILE */   /* USER CODE BEGIN 3 */ }   char* morze(char a) { switch (a) { case 'x': return "-..-"; case 'e': return "."; case 't': return "-"; de

On data scheet of device (PCF8574T mounted on LCM1602) the addres is 0100 1110=4E but the program still doesn't show me any letter on LCD. Where is wrong? I cheked many times the pin and them are right. Same thing on Cube IDE.

Hi, I have a custom board with the st25r95 . I have changed the platfrom.h file and I am able to read UUID, but I need the device to be in card emulation mode if i set RFAL_FEATURE_LISTEN_MODE to true I am getting a linker error:In file rfal_rfst25r95.c undefined reference to `st25r95Listen'undefined reference to `st25r95RearmListen'undefined reference to `st25r95SetACFilter'undefined reference to `st25r95SPIGetLmState'And it seems that this functions are not implemented!Is there any working example, or documentation to implement card emulation?

Hello,is it possible to swap some address pins or is it necessary to follow up the pin given in the datasheet?Lets say i need to change that FMC_A0 does not go to PF0, it should be connected to PF1, and FMC_A1 connected to PF0.And for data i need to swap some signals, FMC_D0 to PD15 instead of PD14 and FMC_D1 to PD14.At the IOC File i can not choose other FMC pins at the MCU.Is it possible to change it in the software that it still work when i swap some signals or is it impossible?Thank you very much.

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Hi. I made a project with stm32cubemx and add touchgfx.then I added some images to the asset folder and compile the project.I used NOR Flash(External Flash) for saving the images.the problem is that the memory usage in cubeide for pictures is larger than all images in the asset folder. This issue causes the external memory to fill up quickly. Does anyone know how to solve it?

I connected a LED to the PA11 pin of STM32WB55VGY microcontrollerand I want to toggle it.So, I'm trying to use HAL_GPIO_TogglePin(xx, yy) but I cannot know the "xx (GPIO_Typedef)" of PA11 pin.Where can I found which pin is which GPIOx?

I had success when using the ULPI interface on a STM32H7A3 (on the nucleo board) using an external ULPI transceiver board https://www.waveshare.com/usb3300-usb-hs-board.htmbut when porting over to the STM32H7B0, I am not having much success. I believe the only difference between the chips are that the 7B0 uses PC2_N and PC3_N which I have set as digital during initialization using the HALHAL_SYSCFG_AnalogSwitchConfig(SYSCFG_SWITCH_PC2, SYSCFG_SWITCH_PC2_CLOSE); HAL_SYSCFG_AnalogSwitchConfig(SYSCFG_SWITCH_PC3, SYSCFG_SWITCH_PC3_CLOSE);also I have set the CRS sync source to USB HS with the same result[Port6] FailedEnumeration : Unknown USB Device (Device Descriptor Request Failed)The external board has been known to arrive DOA judging from other posts in this forum but it worked a couple of weeks ago on the H7A3 variant.Are there any other concerns I should be aware of when using the ULPI on a H7B0 (VBTx)?

I am testing the STM8S Standard Peripheral Library (SPL) with a NUCLEO-8S208RB dev board. The SPL examples were written for the STM8/128-EVAL board, but can be tailored for the Nucleo. I am using the latest STVD and STVP dev tools.The SPL example 'UART1 Half-Duplex' is not working, either with UART1 in TX or RX mode. Only one Nucleo is used, with a single wire connection from UART1_TX to UART3_RX as shown in the below figure: UART1_TX (PA5) to UART3_RX (PD6), as suggested by the example. Are additional connections needed on the same board? Any other suggestions? Thank you.

Hi,the STM32L011E4 has a R_ADC of 1kOhm max according to the datasheet. Does this hold true for standard channels as well, or do standard channels have a higher impedance? The table with R_AIN_max isn't super helpful in this regard as my calculation results don't match with either standard or fast channels.AN2834 mentions an ADC sampling estimation tool. Is it possible to acquire it?Best regards,David Kraeutmann

Hi,I am developing a small module with the STM32WB10 and I need to do 10 ADC conversions (9 external and the internal temperature).However, I can only get the DMA to do the 8 channels configured in the regular channel ranks (Number of conversions = 8 is max in the CubeIDE configurator).How do I make the DMA handle the last 2 channels aswell? if it is at all possible?I can see in the stm32wb10xx.h that there is this define#define ADC_SUPPORT_2_5_MSPSthat prevents the stm32wbxx_hal_adc.h from providing more than 8 ranks for the ADC, but I don't need 2,5MSPS. Is it possible to slow it down somewhere? I tried just giving it a slower clock, but that didn't do the trick...

Hello everyone,Currently, I am working with the example LoRaWAN_End_Node on Nucleo-WL55JC1. I am trying to achieve downlink control. Downlink messages are sent from Chirpstack NS.Right now, I don't know where the function of receiving and processing downlink packets is, in the LoRaWAN_End_Node. I suspect that it is the function OnRxData in lora_app.c but when I tested, it was not what I wanted.Can anyone help me on finding where that function is and how to implement new code?P/s: My next goal is to send a hex (01) from Chirpstack NS to the board so that an LED is turned on.Thank you in advanced, Huy Nguyen.

How does the STM32 knows where should the .BSS section be addressed,and what's the range,when the chip startup initially? We know that firmware downloaded into the flash contains section information like .text ,.data ect,while .bss section should be build up dynamiclly by the system,but how does the chip knows about the address and range for the .BSS section?!

Hello, I happened to have to make an MCU board for a military application. Generally I always use STM32 MCU with which I am very comfortable.But for this specific application I tried to search if there were any MCUs specifically designed for military applications, but all I found are substantially equivalent to the STM32 chips, it doesn't seem that they have anything more than a medium-high range STM32 MCU.So the question is: by choosing an STM32 with extended temperature rage, are there any contraindications to using it for military or safety critical applications?Thanks in advance.

I'm writing a C# version of the USB_Example program. You can set the loader path using the setLoadersPath call, but the path of the Data_Base directory seems to be fixed to "/../Data_Base/<whatever you are trying to connect to>.html. Is there any way of changing this path too? I'm using the latest 2.11 API

I am new with cubeIDE and have been working with a couple projects open at once and it's hard to decipher between them when they're all in the same row in tabs (see first attachment). I am coming from MPLAB and there is an option in the IDE to make different projects have their own row and color (see second attachment). Is there a setting that can achieve something similar in cubeIDE?

Hello,I am using the STM32WB55 nucleo development kit to communicate over QSPI with an external memory device. I presently have the QSPI interface configured for DMA operation, and I am able to use the external device successfully. However, when transmitting data during the data phase of commands, I have captured a pause between bytes being transmitted, as shown below.Note that on the left of the capture, the clock is toggling regularly while the address is sent. However, the clock then stops toggling, and only pulses to send a byte every ~240 ns.The STM32 is clocked at 32 MHz, and has no prescalar, so the QSPI clock should also be at 32 MHz. This pause is not present during the command phase or address phase, and is not observed when receiving data, only when transmitting data.Is this a known limitation of the QSPI peripheral?The external peripheral is used for bulk data logging, and speed is very important for my application. It looks like a data transfer speed up of ~3x is being los

Hello everyone,I'm trying to get started with the STM32MP157 with the STM32MP157x-EV1 Evaluation board by following the exact steps shown here.Everything seems to be running smoothly but when I try to flash the microSD card on the board, something happens: Apparently the problem begins allright, but then, after the message saying "reconnecting the device..." nothing happens and the flashing stops.Here's the log:user@STest:~/STM32MPU_workspace/STM32MP15-Ecosystem-v1.0.0/Starter-Package/stm32mp1-openstlinux-4.19-thud-mp1-19-02-20/images/stm32mp1$ STM32_Programmer_CLI -c port=usb1 -w flashlayout_st-image-weston/FlashLayout_sdcard_stm32mp157c-ev1-trusted.tsv ------------------------------------------------------------------- STM32CubeProgrammer v2.0.0 -------------------------------------------------------------------       USB speed : High Speed (480MBit/s) Manuf. ID : STMicroelectronics Product ID : DFU in HS Mode @Device ID /0x500, @Revision ID /0x0000 SN : 000000000

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Hello,I am using an STM32H7B3I-EVAL board with a STM32H7B3LIH6Q MCU. I am looking to use FDCAN to communicate with multiple nodes and someone recommended using mailboxes for messages sent/received. The documentation was unclear, so I wanted to ask if Mailboxes are a feature with this MCU?

Hi there,I would be interested to know if there is any guidance or any existing example projects for using the STM32MP1 with an RTOS on the A7 cores. I am interested in the possibility of running an RTOS like ThreadX/SMP on the A7 cores (plus the M4 core separately).If this is possible, can the headers from the MP1 HAL be used? Are the memory-mapped peripherals all still accessible at the same base addresses on both the M4 and A7 sides?And regarding the Vivante GPU, is that possible to drive directly without the Linux driver? Are there any public datasheets? I've seen some open-source projects which have reverse-engineered the opcodes. Are there any more official projects or documentation resources for this device?Many thanks,Roger

I'm trying the tutorial on UART (https://wiki.st.com/stm32mcu/wiki/STM32StepByStep:Step3_Introduction_to_the_UART) with an STM32MP157F-DK2 board.I tried defining the USART2 GPIOs with CubeMX as found in the reference document UM2637: DP5 - TX, PD6 - RX (I even tried alternate ports such as PA2, PA3). The generated code compiles well. I then open a Putty connexion on COM19 (the ST Link port) with the required settings, but nothing is printed when I launch the debug.What am I doing wrong?

Hi,I'm here to try to solve a problem that I have on a L6470 device.I have a stepper motor whose step angle is 1.8 degree (200 steps in 360 degrees)and with a 128 microstep mode selected I want to move the motor's rotor to makea 60 degrees angle.I set MIN_SPEED to the integer value corresponding to its maximum value (4096,corresponding to 976.3 step/sec) and I set the MAX_SPEED to an integer valuecorresponding to the same min speed (976.3 * 250 nsec / 2^-18 = 64) so that minimum and maximum speed are about the same (no acceleration/decelerationphase).Then I set a MOVE command with steps = 4267 (the 128 microsteps correspondingto an angle of 60 degrees = (200 * 128) * 60 / 360 ). I would have expected the timeit takes to make that angle to be about 4.73 seconds (4267 / 976.3 = 4.37 sec) butthe time that I measured is almost instantaneous.Where am I wrong?

On my NUCLEO-G071RB board, I am able to use CubeMX to setup VREFBUF mode to use the VREF+ input-pin, internal 2.5V or 2.048V for reference for ADC and DAC.But I'm making a schematic for a STM32G071GBUxN, which does not have a VREF+ pin and in CubeMX I don't find any setup of the reference for this device.So what is the ADC/DAC reference for this device and how do I make adjustments?

Hi,I'm having trouble getting serial data out of my STM32 Nucleo board. I managed to get this working a few years ago but for some reason it's not working for me now.The board that I'm using is an NUCLEO-F413ZH and I'm using a USB-TTL serial cable (TTL-232R-3V3) to try and print some test data to a hyper terminal (RealTerm).I'm running the UART_printf example from the STM32CubeF4 firmware and have modified the code as shown below:main.cuint8_t test_str[] = "Hello World And The Universe!\r\n";while (1){   HAL_UART_Transmit(&UartHandle, test_str, sizeof(test_str), 10);      HAL_Delay(1000);}main.h#define USARTx              USART2#define USARTx_CLK_ENABLE()       __HAL_RCC_USART2_CLK_ENABLE(); #define USARTx_RX_GPIO_CLK_ENABLE()   __HAL_RCC_GPIOD_CLK_ENABLE()#define USARTx_TX_GPIO_CLK_ENABLE()   __HAL_RCC_GPIOD_CLK_E