Solved

Hi all, I have been tasked with porting existing Atmel SAMD21 code to an STM32F030xC. I am getting a bit hung up on how to implement the DMA transfer functionality. The existing functionality reads from a SPI SRAM chip, and writes to a SPI LCD display. Both are attached to 2 different SPI peripherals. It is doing this transfer processes via DMA.Now, in the reference manual, it states that DMA can handle peripheral-to-peripheral transfers. If this is the case, how do I setup the Peripheral address register (DMA_CPARx) and the Memory address register (DMA_CMARx)? Do I simply put the SPIx_DR addresses in both registers and just let DMA do its thing? Can DMA even handle this sort of request on the STM32F030xC?Any help is appreciated, Thank you!

We'd like to change something in the ST25RU3993 GUI app but cannot find the source.Only two downloads are listed:SW-ST25RU001 is the GUI binary installerSW-ST25RU003 - sources of firmware.No sources for the GUI.Thanks,-- pa

I am using nucleo-l053r8 and i flash it with S2LP_CLI_NUCLEO_L0 firmware. But when trying to open the port: i always get the message "wrong firmware detected. Please click OK to start upgrade procedure..."I click OK, the firmware is succesfully flashed, but then the popup message is still repeated when trying to open the com port.How can i open the port successfully?I have also flashed the board succesfully over mbed interface and over keil microvision. The pop-up message still remains the same when opening the port.I am using windows 10.  Any help is appreciated.

Hello everyone,I am working on a project on which i would like to send a notification from a board to another when the firts one crosses a threshold with the built-in comparator. I started from the BLE_p2pServer and BLE_p2pClient examples from STM32Cube_FW_WB_V1.0.0 and modified them a bit to fit my needs. Everything was going well until I tried to send a BLE notification from the HAL_COMP_TriggerCallback() in the server. I tried to send the notification with the functions in the server example and then wrote my own functions by drawing my inspiration from the ones in the server example but I had the same problem : the server stopped advertising.I did some researches and found that SCH_SetTask() is responsible, when I comment its line, the server advertises. Do you have any idea on how to solve this problem or just send a simple notification from the server to the client ?Thank you.

stm32h743​xx.h:stm32h7xx_ll_sdmmc.h:

Detailed logConverting imagesCompiling gui/src/model/Model.cppIn file included from gui/src/model/Model.cpp:1:0:gui/include/gui/model/Model.hpp: In constructor 'Model::Model()':gui/include/gui/model/Model.hpp:65:20: error: 'Model::modelListener' will be initialized after [-Werror=reorder]   ModelListener* modelListener;          ^~~~~~~~~~~~~gui/include/gui/model/Model.hpp:60:10: error:  'int16_t Model::hour' [-Werror=reorder] int16_t hour;     ^~~~gui/src/model/Model.cpp:8:1: error:  when initialized here [-Werror=reorder] Model::Model() : modelListener(0), hour(0)//, minute(0) ^~~~~cc1plus.exe: all warnings being treated as errorssimulator/gcc/Makefile:220: recipe for target 'build/MINGW32_NT-6.2/gui/src/model/Model.o' failedmake[2]: *** [build/MINGW32_NT-6.2/gui/src/model/Model.o] Error 1simulator/gcc/Makefile:182: recipe for target 'generate_assets' failedmak

i want to control AC voltage using firing angle control for this which ic gives rising edge at exactly zero crossing point of ac sine wave op-amp or optocoupler?

Is the USB controller in MP chips same as in F7 (Tensilica) or compatible?Does it support connection of devices thru a full speed hub?Does it support OTG mode?Thanks,Pavel A.

Just got this Nucleo pack, the Nucleo board flash cannot be erased or programmed with CubeProgrammer or EWIAR app. I followed exactly the STM32CubeWB Getting Started Guide - can someone tell me how to program the flash please? Also the USB Dongle is non-fucntional on Win10 - and there is no "inbox" driver that can understand what it is. Do i need to use Win7 to make the USB dongle work? So far out-of-box experience has been totally horrible, not sure how everyone is getting this to work. Thanks

According to the docs I've read maximum FoV using 16x16 SPADs is 27 degrees and minimum FoV using 4x4 SPADs is 15 degrees. But if my math is correct, when side of the measured area is 1/4th then the FoV should be approx. 6.7 degrees. Aren't the SPADs of the same size or is there something else affecting the calculation?

When comparing the data sent from VL53L1X ULD and from VL53L1X_Gui I can see some differences.In particular, I was comparing values sent to registers 0x005e and 0x0061 that are used to configure timing budget. I'm not going to write all measurements here, but e.g. for long distance mode and 50 ms budget the ULD sends 0x00ad and 0x00c6, while GUI sends 0x02f9 and 0x038e. Why such a difference? Which one is correct?Same problem applies to some other registers:0x005b - ULD: 0x08, GUI long: 0x00, GUI short: 0x010x005d - ULD: 0x00, GUI long: 0x00, GUI short: 0x02

Hi, I was evaluating ST25R3911B with 2 evaluation boards: ​X-NUCLEO-NFC05A1 mounted over NUCLEO F401RE and ST25R3911B-DISCO.Regarding X-NUCLEO-NFC05A1 I have uploaded the bin file found in X-CUBE-NFC5 and I have started the terminal as explained in the application note. When I use my ST25TB tags, some of them are recognized and the terminal prints out the UID number, other are not recognized.X-CUBE-NFC5.Regarding the ST25R3911B-DISCO I have uploaded the bin file found in ST website, I launch ST25r3911B Disscovery GUI, I select the polling function, and the program recognize all the ST25TB tags that I use.I do not think it is a matter of antenna, because all the tags are recognized.After debugging the project for IAR found in X-CUBE-NFC5, I have discovered that with the tags not read function rfalSt25tbPollerInitiate returns ERR_FRAMING.So the question is why do the ST25R3911B-DISCO recognizes all the tags while the X-NUCLEO-NFC05A1 does not?Best regards

Hello.I have Init FMC, but when I try write on it, it doesn´t work.And I have a problem, data is send double, and timing is wrong. I think I have problem with init. Can anybody help me with init this pheripheral?And my test write function is here:#define BANK_ADDR ((uint32_t)0x64000000) #define FMCWRITE(uAdr,ucVal)\ *(__IO uint16_t *) (BANK_ADDR + (uAdr))=(ucVal)Init function is here:void initFMC(void) { FMC_pins();   LL_AHB3_GRP1_EnableClock(LL_AHB3_GRP1_PERIPH_FMC);   FMC_NORSRAM_InitTypeDef Init; FMC_NORSRAM_TimingTypeDef Timing;   FMC_NORSRAM_TypeDef *Instance; FMC_NORSRAM_EXTENDED_TypeDef *Extended;   Instance = FMC_NORSRAM_DEVICE; Extended = FMC_NORSRAM_EXTENDED_DEVICE;   Init.NSBank = FMC_NORSRAM_BANK2; Init.DataAddressMux = FMC_DATA_ADDRESS_MUX_ENABLE; Init.MemoryType = FMC_MEMORY_TYPE_PSRAM; Init.MemoryDataWidth = FMC_NORSRAM_MEM_BUS_WIDTH_16; Init.BurstAccessMode = FMC_BURST_ACCESS_MODE_DISABLE; Init.WaitSignalPolarity = FMC_WAIT_SIGNA

I can't access the information on how to install the SDK "Install the SDK" step for the STM32MP157C-DK2> Develop on Arm Cortex-A7 page, can anyone help me?Every time I click on "Install the SDK" I get sent to "Permission error" page where it says: Permission errorYou do not have permission to read this page, for the following reason:You are not allowed to execute the action you have requestedHow can I access the info on how to install the SDK?Link: https://wiki.st.com/stm32mpu/wiki/Getting_started/STM32MP1_boards/STM32MP157C-DK2/Develop_on_Arm®_Cortex®-A7/Install_the_SDK

Hello, I have an issue with the energy harvesting functionality on the NFC04A1, which I believe probably has a very simple solution. If the reader is kept on the tag then EH is happening and working fine, then if i take the reader away from the tag, there is no power, as expected. However, if I then put the reader to the tag again, although I get 3.3V at the jumper, none of my code will work. E.G. NFC04A1_NFCTAG_GetVCC_Dyn() returns an error indefinitely.I can reset the program and its fine again, until it loses VCC again. This is a pain, as i find that if I put the jumper on constant VCC, the tag field can drop out randomly for a millisecond or so. If this happens with EH, it completely ruins the program.I imagine I cant be the only one who has noticed this, so I'm sure there is a simple fix. I imagine that fix already happens in my init function, but it would be handy to pinpoint exactly the point that it does, rather than run a lot of needless code. ThanksDamien

I create Custom hid and send 2 PC report usingwhile(1){USBD_CUSTOM_HID_SendReport(&hUsbDeviceFS, dataToSend, 4);}And... Device is frozen. Why? I am going inside HAL->USBD_CUSTOM_HID_SendReport... I see codehhid->state = CUSTOM_HID_BUSY;so USBD_CUSTOM_HID_SendReport function makes devise busy but no one can make device unbusy. Is it ok?

Posted on February 23, 2018 at 18:10Dear All,I use SPI as a master with 2 lines full duplex with DMA on STM32F303RE with 8-bit data size.Frames are made of variable number of Bytes. Normally SPI clocks out 3 Bytes of command on MOSI line + 4 Bytes of reception which contains the slave answer.My TX buffer is something like this:   (CMD)(ADD_H)(ADD_L)(4 Bytes don't care)My RX buffer will be:   (3 Bytes don't care, normally 0xFFFFFF)(0x21)(0x43)(0x65)(0x87)The output on the oscilloscope is perfect, but after a 30 seconds of millions of good communication I find the Rx buffer shifted:(0x43)(0x65)(0x87)(0xFFFFFF)(0x21) or(0x65)(0x87)(0xFFFFFF)(0x21)(0x43) or(0x87)(0xFFFFFF)(0x21)(0x43)(0x65) orThe shifted conditions is kept for some second, then it change. If I let it go, it keep on shifting, till goes back in phase.Here is the configuration of SPI:SPI_I2S_DeInit(SPI2);SPI2->CR1 = SPI_CPHA_1Edge | SPI_CPOL_Low | SPI_Mode_Master | SPI_BaudRatePrescaler_64 |

Hi,I'm simply want transmit on UART using code generated by CUBEMX 5.1.0 for NUCLEO F401RE in System Workbench (Version: Neon.3 Release (4.6.3)).I've only added the following code in the main:UartStatus is ALWAY HAL_OK after every transmission. I'm using Tera Term to see the serial data on COM5.Thanks for help! /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { /* USER CODE END WHILE */ uint8_t buffer [] = {0,1,2,3}; UartStatus = HAL_UART_Transmit(&huart2, buffer, 4, 1000); if (UartStatus != HAL_OK) { HAL_Delay(1000); }   HAL_Delay(1000); /* USER CODE BEGIN 3 */ } /* USER CODE END 3 */   static void MX_USART2_UART_Init(void) {   /* USER CODE BEGIN USART2_Init 0 */   /* USER CODE END USART2_Init 0 */   /* USER CODE BEGIN USART2_Init 1 */   /* USER CODE END USART2_Init 1 */ huart2.Instance = USART2; huart2.Init.BaudRate = 115200; huart2.Init.WordLength = UART_WORDLENGTH_8B; huart2.Init.StopBits = UART_STOPBITS_1; huart2.I

I have installed the last version of TouchGFX Designer.I choose the board STM32-F429ZI and an example.I may simulate the example in the computer and it work correctly. But, even though I have connected the board to computer, the button "Run Target" is unavailable.I also have STMCubeMX installed, but I do not believe that it can affect TouchGFX Designer.

Posted on January 18, 2018 at 15:09Hello,in a recent design I am experiencing some trouble on the L496RGT6 MCU when using UART1 in connection with an FT232RL. I am using HAL drivers.The following problem occurs: Transmitting data in blocking an non-blocking mode works fine. But receiving leads to problems as UARt stays busy receiving. For receiving I use the HAL_UART_Receive_IT(...) function. When receiving data the Callback routine is executed as desired, but when executing the next receive out of the Callback UART is staying busy. My Callback routine is shown below. My code is exported by CubeMX with the SW4 Toolchain. The code is testet on two MCU. Same code wors fine on other STM32 F-/L-Series MCUs.Are there any similar problems known yet? Has someone an idea for a workaround?void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart){    if(huart->Instance == USART1){         // sending back received char    &nb

Hi!I'm just starting learning STM32, I got a st-link cutoff from a nucleo-board. I find programming ready boards a bit boring, so I went straight to naked MCU on breakout boards.So I got this STM32L431KBU6 chip on breakout and I can't get it to start. Here is the GPIO config, and the clock config. That is one from many I tried, I only tried with with internal clocks, MSI in different configs and HSI with different combinations of multipliers and dividers When I run a debug in Keil, I just can't get past some cycle. I think it's already some error handler, but I don't get it shown in C code.The thing is I managed already to run a "hello world" on another mcu (stm32l412K8t6), so I don't understand, what is so special with this one that I don't get correctly?Thanks in advice for any help.

Hi, I'm new here and I'm starting to develop an application on STM32H750 with TouchGFX. I've read about the STM32 LTDC's L8 (8-bit luminance or CLUT) mode. This would give a palette of 256 colors which is more than enough, and use very little memory. However it seems TouchGFX only supports framebuffers of 24bpp, is this correct? Or is it possible to let TouchGFX use an 8bpp framebuffer?Best Regards,Sjef

Hi,I start working with the new STM32MP157C-DK2 board and after testing the demo i restart from the bottom, compiling just uboot+SPL (no TF-A). I compiled with the last Linaro toolchain 'gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf' and prepared the sd card with minimum just to boot (fsbl1 - fsbl2 -sspl partitions).All works fine: i reach the u-boot command line with no errors.Now i'm trying to debug the SPL: i'v never debugged a MPU and i wonna be sure i'm able to do this when i'll work on my own hardware. I follow the guide https://wiki.st.com/stm32mpu/wiki/GDB and i successfully connect the debugger, set some breakpoints (ex. on spl_init function) and contine throuth them. Despite all is very slow (it takes nearly 5s to continue until a break just in the next line) it seams to work. Grate !Problems starts when i try stepping: it doesn't work and i recieve a "timeout waiting for target halt" error.I bypassed gdb and i connect directly to the openocd Telnet server on localhost:

Hi. I am writing very time sensitive code on the STM8 mostly using assembly. However, I have noticed that sometimes adding one cycle of delay at one point in the code changing the timing of the whole code. I will explain in more detail to clarify. I have an interrupt which fires based on the a GPIO. I start reading the inputs. My code works, data read is good. I respond, but the timing is slightly off. So I add in a couple of nop cycles to fix it. The read is now broken. Keep in mind this is all a single sequential file of assembly to handle the interrupt. The processor is always in the WFI state when the interrupt fires. But somehow adding a couple of nops somewhere in the code causes everything to break (in terms of timing). I sure there is some explanation for this, but I have yet to find anything in any of the documentation. Any insight would be greatly appreciated.Thank you,Chris

Im new, hope this isnt dumb question. I have an erased STM32F303 and want to upload my code via UART1. I I have an FTDI USB to serial converter. I set BOOT0 pin=H and have the "Demonstrator" program for Windows working. Since the MCU is blank, how do I know where UART1 is? Thank you!