Solved

Hello:I seemingly have the LPUART now configured correctly. For sure the transmit (without DMA) functions OK. I only have receive DMA configured. As usual, it was done in Cube.uint8_t rxBuff[40];#define RX_DMA_SZ 10The start is the same as I am using in another program that does work:   HAL_UART_Receive_DMA(&hlpuart1, (uint8_t*)rxBuff, RX_DMA_SZ);I also have both half/complete callback defined.When Teraterm sends characters I can see them on the receive line from the 485 transceiver to the L433. I have a breakpoint in the interrupt under the IRQ interrupt and the DMA interrupt. The breakpoint is never hit.I have an ADC DMA that works just fine, this one doesn't feel quite the same. What would cause the UART DMA not to function?

Hi, I use CLT01-38SQ7. In datasheet (DocID028182 Rev 1) is not clear to me how to use Vcs pin (24V sensor power supply sensing input) for UVA purpose.In Figure 7. “Logic status of the SCLT3-8BQ7 power supply�? voltage ranges of Vcc and Vc are shown, but I do not understand how these values are determined, since they depend on the values of the voltage divider in the circuit Vcs (pin 14) and his input current.                                   NOTE: This question and answer originated from a customer support case which was handled by us. We regularly review support cases and add any helpful ones here for all to benefit from.

..

I have a problem with triac BTA06-600B, when I try to power off some LED lamps they start flickering. I use triac to manage the main power (220V 50Hz), if the load is a traditional, halogen or cfl lamp all works fine. I tried to unmount the snubber circuit and the led stops flickering, but I'm worried about the lifetime of triac in case of inductive load. Is snubberless triac a solution? Are there any other components to manage main voltage?       NOTE: This question and answer originated from a customer support case which was handled by us. We regularly review support cases and add any helpful ones here for all to benefit from.

We are using USBUF01W6 as EMI filter for STM32F207VCT6 in USB D+ and D- lines in Full speed mode and we have connected VBUS (5V) at pin 3.3V pin of USBUF01W6. Does this make sense to you?NOTE: This question and answer originated from a customer support case which was handled by us. We regularly review support cases and add any helpful ones here for all to benefit from.

Dear forum,I am using ST STM32F103R8T6 MCU for my medical project, i referred the hardware design guide to design the MCU schematics, now i have question in my mind that how do i deal with unused pins?should i connect 10K resistor to ground? or should i directly connect unused pins to ground? i am attaching the guide which i used to design the schematics. in this guide i did not find any statement which says how to deal with unused pins.please help me out.

I am working on project in which we are using STM32F103C8T6 and I have one development board called blue pill and also have st link V2.But I don’t know where to start which are the softwares are required for STM32 development. I have searched on the web but still not getting proper information.So Please anybody can help me with this....

Hello everyone.​I program the MCU for the first time.​​I got the "NUCLEO-L496ZG".Next, I downloaded "STM32CubeL4" from ST homepage.I run the "\Projects\NUCLEO-L496ZG\Example\ ADC\ADC_DMA_Transfer" for the downloaded file.I want to change the input pin of the ADC.But I don't know what files to change.​Please teach me the file to set the register first.​Best regards,Toru​​​​

Hello.I use the S2-LP DK_1.2.1 project example "SDK_Chat.c" as the base for two Steval-FKI433V2 PCBs.The 1st Steval with unchanged SDK_Chat.c program is used as a base device, connected to COM-port, the 2nd Steval without connection to COM-port should send the data on request of the 1st Steval.Question: how to switch S2LP-Rx/S2LP-Tx modes correctly without the cycle of waiting the COM-port's chars sequence?May be there is Echo example for two Steval PCBs?A target part of the program SDK_Chat.c is placed in infinite loop of main().The start line 347 (line count for original SDK_Chat.c): tx_data_size=0;the end line 378: tx_data[tx_data_size] = '\0';(All this part of original SDK_Chat.c is placed in the end of this question.The file SDK_Chat.c with my changes is attached, the added lines are signed with '//my' comment).I try to replace the target part with the next one: /* infinite loop */ //- line345isRxCmd=0; //this is added while (1){   while(!isRxCmd) { /

There is a packing mode check in Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_spi.c, function HAL_SPI_Transmit_DMA around line 1464, that is referencing RX side DMA handle:1464 /* Packing mode management is enabled by the DMA settings */ 1465 if (((hspi->Init.DataSize > SPI_DATASIZE_16BIT) && (hspi->hdmarx->Init.MemDataAlignment != DMA_MDATAALIGN_WORD)) || \ 1466 ((hspi->Init.DataSize > SPI_DATASIZE_8BIT) && ((hspi->hdmarx->Init.MemDataAlignment != DMA_MDATAALIGN_HALFWORD) && \ 1467 (hspi->hdmarx->Init.MemDataAlignmen t != DMA_MDATAALIGN_WORD)))) 1468 { 1469 /* Restriction the DMA data received is not allowed in this mode */ 1470 errorcode = HAL_ERROR; 1471 __HAL_UNLOCK(hspi); 1472 return errorcode; 1473 }I believe all references to hdmarx should be hdmatx in this context. The hdmarx may not even be initialized properly.Thoughts?

Unlike STM32F7 (and presumably other STM32 families) which defines IS_SDMMC_ALL_INSTANCE in the CMSIS header file stm32f7**xx.h, the STM32H7 does not define this macro which is required for proper compilation of stm32h7xx_hal_sd.c and stm32h7xx_ll_sdmmc.cThis was observed on package version 1.3.2 Can this get fixed so that we dont need to modify the non-user code section of these files?

In example code in library STM32CubeExpansion_NFC5_V1.3.0 for STM32L476RG-Nucleo, after pressing user BUTTON, it enters in low power mode. When it should be wake up, after again pressing user BUTTON or After detecting RFID tag? What is the program flow?

Hello,is it possible to know when will the 1.4 software version of STM32CubeH7 be released?Thanks in advance.

Hi,I am using NUCLEO -F722ZE board for testing the STM32F7 and their peripheral features. Other peripherals I tested works fine, but I have encountered a problem with I2C2 in slave mode, that doesn't send ACK when the master calls it (status flags keeps idle too).STM32 core and AHB/APB buses are working at maximum speed (216MHz, 108MHz, etc...).Here is the code:// 1st configuring RCC, GPIO, and reset for enable I2C2:RCC->APB1ENR=0x3040000B;      // I2C2 (and others) clockedRCC->APB1RSTR=0xE2F7CBFF;   // Reset I2C2RCC->APB1RSTR&=0xCFBFFFF4; // Free reset of I2C2GPIOB->MODER=0x55A55555;     // PB10 PB11 in alternate functionGPIOB->OTYPER=0x00000C00;    // PB10 PB11 open drainGPIOB->ODR=0x00001C00;           // PB10=Higo PB11=High preventivelyGPIOB->PUPDR=0x00000000;      // No pullups (

If I one to use Molex 1462360001 (it's antenna for NFC with Inductor @13.56MHz 2.11uH), how I need to modifi output block for CR95HF. Because how I can see STM boards use antenna with inductor 430 nH.Molex 1462360001 datasheet https://www.molex.com/pdm_docs/ps/1462360001-PS.pdf

I am using ..\Applications\LibJPEG\LibJPEG_Decoding example and it opens a single jpg-file as it should, but how to modify the code to show several files (one after another). All I get is the first picture.Repository\STM32Cube_FW_F7_V1.15.0\Projects\STM32746G-Discovery\Applications\LibJPEG\LibJPEG_Decoding\MDK-ARMAs a last hope I tried this test code. Both files work when I try them separately but not in the same code like this./* Includes ------------------------------------------------------------------*/ #include "main.h" //480x272 /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ FATFS SDFatFs; /* File system object for SD card logical drive */ FIL MyFile; /* File object */ char SDPath[4]; /* SD card logical driv

In every example which i have tested after second device disconnection it stops Advertising. After a short investigation i found that aci_gap_set_discoverable waits for hci_cmd_resp_release. I don't know if problem is with stack on CM0 or it is problem in STM32Cube_FW_WB_V1.0.0I need answer ASAP: i have to decide if this Product will be used in our new (quite big) project.Best RegardsWojtek

..

..

I downloaded the latest version available at ST site i.e. Ver 1.07. When I am trying to sync the project the error appears. Same happens with old version also. Kindly help.

Posted on July 02, 2017 at 05:34Hello,I recently migrated to STM32 Platform and I'm trying to learn all the Peripheral features without using Standard Peripheral Libraries. Problem Statement: I am not able to  get PWM output on  timer output channel 2 ( GPIOA1)  after configuring general purpose timer 2 of STM32F103c8T6 Micro-controller in PWM mode 2.My Configuration: Timer :              General Purpose timer 2Timer Clock:     72 MHzDuty cycle:        50%Frequency:       50 HzMCU crystal :   8 MHzI configured the GPIOA in Alternate function output Push Pull mode with maximum frequency not exceeding 50 MHz,  I connected an LED bulb to the GPIOA pin 1, but the LED wend on glowing without reduction in the brightness level. The LED was still glowing even after i performed a test with duty cycle set to 0. O

Compiling the BLE_SensorDemo sources in True Studio does not generate the same .hex as the precompiled .hex provided in the "Firmware" directory. The precompiled .hex works with the BLE Sensor app when loaded onto the BlueTile, but the .hex compiled from sources does not. When comparing both .hex files, they appear to be mostly identical except for about 200 lines of data at the beginning of the precompiled .hex that does not exist in the .hex generated in True Studio. It seems like there are either issues with some of the source files or project settings and it is not clear to me what needs to be corrected.

I use stm32h743zi microcontroller and nucleo board.When I wanted to use ethernet communication on cubemx,LWIP is not enable.

I have been flashing ST with the Flash Loader Demo utility successfully for long time, directly to my PCB design. BOOT0 pin is high, everything around the STM32 is quite (no activity on peripherals connected). Reset properly connected to a Resistor with a small Cap.I try with a second PCB board and got the same issue. Googled the issue, read the Q&A, Try the CubeProgrammer, try the FlashLoader demo and try bootloader commands using a serial terminal. All tests with some interaction but unable to flash a new firmware.Flash Loader demo: It connects, shows "Target is readable. Please click Next to proceed. "remove protection" button is disabled. Next screen No target list, PID 0x45 (correct) BID: NA and version 3.1. Can't do anything more here. Flash Loader is not useful anymore after this point.Manual bootloader codes: Sent the 0x7F and received the ACK, Sent the 0x00 0xFF, received the proper answer (1F 79 0B 31 00 01 02 11 21 31 44 63 73 82 92 79) , Just in case sent the readout un

Hi everybody!I working on a simple project but with some sensors and co.I'm newbie with the STM32 and I want to try to port the project from the ATmega2560 to the STM32.But witch chip? I need :> SPI for an TFT screen 2.2" (ILI9340C or ILI9341)> SPI for a MicroSD Card> BMP180 sensor> 2 pins interup> 3 indepedants Pins PWM> 2 ADC> RTC time> One Serial for bluetooth HC-05> One Serial for an GPS L80> One Serial for connect an external probe> 10 digital Input> 4 digital Output> min 72Mhz for the sreen> All pin in 3.3vQuestion :> Minimum 64K of program space ?> Flashing the MPU directly with the USB port ?> Possible to program all from the Arduino IDE ? ( with the right card )Thanks! =)