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Posted on December 01, 2017 at 04:30Hi,The project is developed with Keil MDK, it run well. But I use OpenStm32 to create one project, and copy the source code into the OpenStm32 project. I can run with ST Jlink V2, but the code enter HardFault_Handler while run ''TIM_Cmd(TIM4,ENABLE); ''. BTW, I use old stm32f10x_it.c (V3.3.0) version?other driver file are old version.Best Regards,Kent#openstm32-debug #driver-version

Posted on November 30, 2017 at 17:28Hi, I'm new here.I've started a project using the STM32F746 Discovery board and I've been messing around with the external SDRAM.I copied the initialisation code from the FMC example, and used STM32CubeMX for the hardware initialisation. I am able to read and write from addresses 0xC0000000 to 0xC07FFFFC; i.e. any memory accesses at 0xC0800000 or above causes the default handler to be invoked. Has anyone else come across this problem?##external-sdram #sdram #stm32f7

Posted on November 29, 2017 at 13:57With the community's help I have code that runs and demonstrates interrupts and interrupt handling. I need more information to understand how the STM32F3 series parts process event changes (interrupts) such as the SysTick and GPIOs and setting their priorities. All the docs I can easily find indicates the internal hardware but does not explain how to put the hardware (registers) together.  Yes I have STD code examples (thanks to the community) but no foundation to understand what the settings are doing.Can someone point to some documentation or suggest a way to get this experience/knowledge.Thanks...Randy

Posted on September 29, 2017 at 14:32Hello,I am using STM32F446 MCU. ADC chnanel 10 & ADC channel 12.ADC ref voltage is 3.0V.I am getting 0 count for 0v on ADC channel 10.But I get ADC count value 87 for ADC channel 12. which calculates to 1 V.what could be the issue?.Reading is taken every 10ms.Please find the ADC code below:#define ADC_DMA_CHANNEL2         DMA_Channel_2#define ADC_DMA_STREAM             DMA2_Stream0void StartAnalogReadout_STM32f4(void){ static CAlarmRTC alarm(0, 10);DMA_InitTypeDef DMA_InitStruct; ADC_CommonInitTypeDef ADC_CommonStruct; ADC_InitTypeDef ADC_InitStruct; GPIO_InitTypeDef GPIO_InitStruct; uint32 addr = (uint32)adc_buffer;/* System clocks configuration ---------------------------------------------*/ RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2 | RCC_AHB1Periph_GPIOC, ENABLE); RCC_APB2PeriphClockCmd(/*RCC_APB2Periph_ADC1 |*/ RCC_APB2Periph_ADC3, ENABLE);/* GPIO configuration -------------------

Posted on November 28, 2017 at 07:05What is the device address of the M24LR64 - R? I am studying I2C using X-NUCLEO-NFC 02 A 1. X-NUCLEO-NFC02A1 has EEPROM (M24LR64-R). However, I do not know the device address of the M24LR64 - R. Even if I looked at the data sheet, I could not understand where it is written because of beginners. I am happy if you give me a hint.Best Regards,Ken Inoue

Posted on November 16, 2017 at 13:06Hello,On my nucleo-l073 board, my software can run in stop mode and consumes only 3uA. I decided to make my own PCB but i can't figure out why the consumption can't reach 3uA. Actually, i'm running around 25uA with the same software. I'm using a stencil and a reflow oven to solder the components (T-962) and the solder paste is a Sn63 Pb37. I'm making the pcb by PCBway and i take the cheapest quality (5$ for 10 pieces : TG 130-140 (i don't what it means)), do you think it could come from that ?I have also noticed when i put my finger directly on the stm32, consumption often decreases.If you have any ideas, please feel free to share Thank you in advance.Edit : I join in attached file my schematic and my PCB (the ground planes are not displayed)Best regards,Aur�lien#stop-mode #low-power #stm32 #pcb #nucleo-l073rz #pcbway

Posted on November 29, 2017 at 12:27I have nucleof401re, everything was working fine for past 3 months but suddenly today Keil started giving error in connection. When I checked the storage, there was a text file named FAIL and it showed that interface firmware failed to reset the mcu. I tried google, upgraded the software but nothing seems to work. Jumpers are connected as they were since the beginning. Any help will be appreciated.#stm32 #stlink-error #nucleo

Posted on October 23, 2017 at 22:19Hello,I want to use the BAM mode, and more specifically, D1/D2 in DSTANDBY, while D3 is in RUN mode. In this mode i want to have ADC3 sampling 3 channels, and transfer the results to RAM using BDMA. From what i can understand i need a LPTIM to trigger the ADC3.  I might need a higher sampling rate than the ones LSI/LSE (32k) can provide. I see that i can use HSE through PER_CLK to clock LPTIM.My question, is it possible to use HSE in BAM mode? The reason i am asking is that there is nothing specific about clock behavior in BAM mode, only in RUN & STOP/STANDBY, and as i understand BAM is in between......Thanks,Evgeny#bam #stm32h7 #adc #dma-adc #adc-trigger #low-power #hse

Posted on November 28, 2017 at 06:46 I am trying to implement SPI on STM32F3 Discovery board using standard peripheral library. I don't want to use HAL drivers(It is a constraint). I am not able to figure what I am missing. I am implementing the SPI in slave mode. Below is the SPI configuration and code in main function. void main() { /* Initializes the SPI communication */ SPI_I2S_DeInit(SPIx); SPI_InitStructure.SPI_Mode = SPI_Mode_Slave; SPI_Init(SPIx, &SPI_InitStructure); /* Initialize the FIFO threshold */ SPI_RxFIFOThresholdConfig(SPIx, SPI_RxFIFOThreshold_QF); While(1){ // Start SPI transfer /* DMA channel Rx of SPI Configuration */ DMA_InitStructure.DMA_BufferSize = NumberOfByte; DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SPIx_DR_ADDRESS; DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)RxBuffer; DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC; DMA_InitStructure.DMA_Priority = DMA_Priority_High; DMA_Init(SPIx_RX_DMA_CHANNEL, &DMA_InitStructure); /* DMA chan

Posted on November 27, 2017 at 03:45 I need to update the SPC5 4.0 project to SPC5 5.6 project. But there is no SPC560Pxx IRQ component RLA in SPC5 5.6.

Posted on November 27, 2017 at 09:10Hello All,I configured ODR to 1600Hz at CTRL4 register on LIS3DSH.It works perfectly except for update frequency.INT1 pulse outputs with 600us interval! I attached Oscilloscpe at INT1 pin.It should be 625us(1s/1600 = 625us).Could anyone kindly help me what is wrong with my setting, hardware...?

Posted on November 28, 2017 at 01:27Hello all,I'm using STM32L476 in a custom PCB board. Using USB OTG libary (from L4 cube examples), our code initialize USB Mass storage by following four lines of code upon USB connectivity (detected by a connected GPIO pin):USBD_Init(&USBD_Device, &MSC_Desc, 0);                                              // USB MSC initializationUSBD_RegisterClass(&USBD_Device, USBD_MSC_CLASS);                   // USB class registrationUSBD_MSC_RegisterStorage(&USBD_Device, &USBD_DISK_fops);        // Storage call backsUSBD_Start(&USBD_Device);            

Posted on November 21, 2017 at 11:46 Hello, I know my question is simple but the answer, I think, is not as simple. Here is my use case: I would like to exchange a small amount of data between a PC (client) and a remote device (server) quickly and often The PCrole is to - open a TCP connection to the server socket - start and stop application exchange - process the data. The remote devicerole is to - provide Wifi AP - listento a socket server - execute the command send by the PC - send data periodically I'm okay to create a server socket, use SPI protocole, and send data between them BUT I find very annoying the WIND notifications system to know there is pending data. Is it possible to disable the WIND notifications (with the WIND mask) and to use the IRQ line to signal only when application data have been received on the socket server? My dream would be : once the initialisation is over, to disable the notification and only use write and read socket command to manage

Posted on November 02, 2017 at 14:22I am seeing very noisy measurements on shunt adc.I attached schematics and gerbers.Could suggest how to eliminate noise on adc lines (line connected to shunt and going to STM32F303 chip?regards#adc #l6206pd #noise

Posted on November 28, 2017 at 01:49Hi,Now we need to develop the STM32F103 FW, I want to if ST provide any free IDE for FW development? Best Regards,Kent

Posted on November 21, 2017 at 07:12Hi,my STM32F302R8 Device with 64KByte FLASH, 16KByte RAM.I configured Min_Heap_Size and Min_Stack_Size in file 'stm32_flash.ld' as below._Min_Heap_Size = 0x400;_Min_Stack_Size = 0x1000;While build the project codes, below error was happened.------------------------------------------------------------------------------------------------------------------------c:/emb_tool/gcc-arm-none-eabi/bin/../lib/gcc/arm-none-eabi/5.4.1/../../../../arm-none-eabi/bin/ld.exe: ./Release/my_app.elf section `._user_heap_stack' will not fit in region `RAM'c:/emb_tool/gcc-arm-none-eabi/bin/../lib/gcc/arm-none-eabi/5.4.1/../../../../arm-none-eabi/bin/ld.exe: region `RAM' overflowed by 96 bytescollect2.exe: error: ld returned 1 exit statusmake: *** [all] Error 1------------------------------------------------------------------------------------------------------------------------After changed _Min_Heap_Size from  0x400 to 0x200, re-bulid it and no

Posted on November 26, 2017 at 22:57 Hanging up for me at 4.0 MB of 4.3 MB, if working for someone please post a mirror http://www.st.com/content/ccc/resource/technical/document/user_manual/group0/ae/a3/af/94/27/d8/46/3f/DM00421316/files/DM00421pdf/jcr:content/translations/en.DM00421pdf

Posted on July 03, 2017 at 14:34May an application note?Provide ST a software module for the ST25RU3993?

Posted on November 27, 2017 at 17:30Hi,I'm quite new in the wonderful world of STM32. I have a personal project where I would like to simulate a Somfy remote emitter/receiver. If I connect the receiver to my logic analyzer, I can see the signal. The protocol has been reverse engineered so it's not the problem to understand it.My question is: 'what's the best way to capture the signal coming from the receiver' ? I've read the STM32 documentation about TIMER feature but I'm not sure it's the more efficient way to proceed.One the signal is captured, how can I emit it ? Using TIMER again ?I've looked for simple code which records and plays back a signal but I didn't find anything for the STM32...Thanks,PierrePS: Just in case, I've attached a capture of the signal I want to process. Here is the description:https://pushstack.wordpress.com/somfy-rts-protocol/ #input-capture #stm32-f1

Posted on November 22, 2017 at 13:48 Working with STM32F303K8 at the lowest level where I'm writing to the registers directly. Try to follow generic statements in STM documents to handle a high2low transition on a GPIO PB4 input pin. These are the instructions I feel I need to do for the docs. //interrupts //EXTI registers. Only set ones that are needed. SYSCFG_EXTICR2 |= BIT0; //select source pin PB4 for the EXTI4 external interrupt EXTI_IMR1 |= BIT4; //assumming MR4 is EXTI4. Set to not mask EXTI_EMR1 |= BIT4; //assumming MR4 is EXTI4. Unmask event EXTI_FTSR1 |= BIT4; //assumming TR4 is EXTI4. Failing edge If this code all I need and correct? I also need an interrupt handler. Again from examples and online searches this is my handler. void EXTI4_IRQHandler(void) { if((EXTI_PR1 & BIT4) != 0) { EXTI_PR1 |= BIT4 ; //clears interrupt } //determines if set GPIOB_ODR |= BIT3; //toggle test points for scope GPIOB_ODR &= ~BIT3; } When running and PB4 going high2low at ~1K

Posted on November 21, 2017 at 23:34I like to use the Sleep-to-wake and Return-to-sleep feature of the LIS2DE12. I am wondering what axis value is compared with the threshold value (ACT_THS). Can I select the axis? The http://www.st.com/content/ccc/resource/technical/document/datasheet/group0/72/cb/80/a7/5e/fe/46/9d/DM00153214/files/DM00153214.pdf/jcr:content/translations/en.DM00153214.pdf doesn't say much! #sleep #accelerometer #mems

Posted on November 24, 2017 at 15:19Hi All,I was working on getting user input via keyboard over uart. The input could be varible length. To handle this issue I use HAL uart receive DMA (circualr mode). To get input and and tranfer it over uart, i got an example which actually serves my purpose fine. The example is by pasztora and link is given below: <LINK NO LONGER ACTIVE>Now I implement my task in STM32L476RG Nucelo board and it was absolutely fineIn the example mentioned above, there is code block,if((USART2->ISR & USART_ISR_IDLE) != RESET){    USART2->ICR = UART_CLEAR_IDLEF;    /* Start DMA timer */    dma_uart_rx.timer = DMA_TIMEOUT_MS; }Well, for my client project I got a board which has STM32F401RETx. But for the STM32F401RETx board I dont get defined the below:USART2->ISRUSART2->ICRUSART_ISR_IDLEUART_CLEAR_IDLEFMy question is why those above mentioned are not defined? and wha

Posted on November 27, 2017 at 10:40hi,I set external interrupt 3 on cubemx to Rising edge and need to change of trigger level that on its routine.I write this code on interrupt 3 routine, but it always trigger by rising edge (down't execute falling edge) (PLEASE: see attach image)how can I fix this problem with HAL driver command?void EXTI3_IRQHandler(void){  /* USER CODE BEGIN EXTI3_IRQn 0 */switch(valuee){    case 10:    HAL_GPIO_WritePin(RLED_GPIO_Port,RLED_Pin, GPIO_PIN_SET);    CLEAR_BIT(EXTI->RTSR,0X03);    SET_BIT(EXTI->FTSR,0X03);    valuee=15;    break;        case 15:    HAL_GPIO_WritePin(RLED_GPIO_Port,RLED_Pin, GPIO_PIN_RESET);    CLEAR_BIT(EXTI->FTSR,0X03);    SET_BIT(EXTI->RTSR,0X03);    valuee=10;    break;}  /* USER CODE END EXTI3_IRQn 0 */  HAL_GPIO

Posted on November 27, 2017 at 01:24I use the SPC5 Studio 5.6 to open an old project and get the following error.08:20:06 **** Build of configuration Default for project BZW111A_CAT_MHE_Gamma ****make all Compiler Optionsppc-freevle-eabi-gcc -c -mcpu=e200zx -meabi -msdata=none -mnew-mnemonics -mregnames -mvle -O2 -ggdb -fomit-frame-pointer -falign-functions=16 -mno-spe -msoft-float -ffunction-sections -fdata-sections -fno-common -Wall -Wextra -Wstrict-prototypes -Wa,-alms=build/lst/ -DPPC_USE_VLE=1 -MD -MP -MF .dep/build.d -I. -I./components/spc560pxx_platform_component_rla/lib/include -I./components/spc560pxx_irq_component_rla/lib/include -I./components/eeprom_emulation_driver/lib/include -I./components/spc560pxx_platform_component_rla/cfg -I./components/spc560pxx_irq_component_rla/cfg -I./components/eeprom_emulation_driver/cfg -I./source/ -I./source/Config/ -I./source/Driver/ -I./source/Driver/Input/ -I./source/Driver/Input/Analog/ -I./source/Driver/Motor/ -I./source/Driver/Output/

Posted on November 27, 2017 at 01:14Hi I planning to use either SPIRIT1 or S2-LP for my project on WMBus. Refering to the schematic (http://www.st.com/content/ccc/resource/technical/layouts_and_diagrams/schematic_pack/d0/6d/01/df/b4/8f/43/75/steval-ikr002v4b_schematic.pdf/files/steval-ikr002v4b_schematic.pdf/jcr:content/translations/en.steval-ikr002v4b_schematic.pdf), there are these four resistors (R6-R7 in the lower left corner) which are soldered for the selected operation frequency. These are shown to be connected between GND to GND !!  Can anyone explain how do these resistors work and affect the frequency of operation? It may be that these are placed on the PCB exactly at the position needed so that the board will operate at the selected frequency. I am not sure and it is very confusing without any information.  Would anyone please explain?Really appreciate your help!!Thanks in advance!Silas#balun #spirit1-wmbus