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I am using a STM32072B-EVAL board because I need a working demo about HDMI-CEC.It is clear that there are problems: the original firmware already on the board has errors about icons (some graphics is broken), about images (it hangs if try to show an image) and also with audio.Anyway, ignoring this, because I must do some investigations with CEC I wanted to modify the software. After some trouble for setting up TrueStudio (the original firmware is dated 2014 and TrueStudio evolved in the meantime), after loading the ORIGINAL software compiled from the ORIGINAL firmware source package the display is now all white and the board is totally unusable.So I loaded the ORIGINAL binary from the same package anche the result is the same.I suppose at minimum they have changed something about the LCD or maybe more.The only firmware package on the ST site seems to be STM32072B-EVAL_FW_V1.0.0 that is the very first version, as I see from the number. But this version is not working on the board.Please

I need to store atleast 20,000 samples per second to perform FFT. so I have used memory card to store all the values in sd card. currently, I could only able to store 7000 samples at a particular interval of time but not more than that. I tried with one bit sdio mode and 4 bit but of no avail. Any hints or tips to improve the speed of sdio mode? I also tried to increase the overall frequency of the clock then too it didnt affect the performance of sdio. in the code for my trail purpose i simply created an array. In future I will store values from ADC inputs in array. when i change the value in array to 8000 and value in for loop to 7999 nothing happens! I could only able to create a .txt file in sd card but i cannot store values. simple code: uint16_t array[7000],j=1; /* USER CODE BEGIN 2 */if(f_mount(&myFatFS, SDPath,1) == FR_OK){ HAL_GPIO_WritePin(GPIOD, GPIO_PIN_12, GPIO_PIN_SET); char myFILEName[]="TEST1.txt"; if(f_open(&myFILE, myFILEName, FA_WRITE| FA_CREATE_ALWAYS)

Hello,I want to use TIM3 as 32-Bit counter. Clock source is set to ETR2. The corresponding Pin is PA0. For test purpose I use TIM3 to generate a clock signal (Pin PC6) to feed the TIM3 counter.Connecting these to pins together (PA0 and PC6) results in an clock signal with an offset. The reason is, that PA0 is driving 3.3V.Any idea why PA0 is driving 3.3V?I'm using NUCLEO-H743ZI.RegardsJakob

Hello,I use stm32cubeH7 examples.I find in some of them call to sprintf, yet I don't understand where is the output of the sprintf goes to:I tried opening the "STMicroelectronics STLink virtual com port" - nothing is printed hereI also tried to search for a debug console window in IAR - I did not find suchI tried to see where sprintf is defined in code, and also did not find the relevant c file ( it seems to be part of IAR C compiler files)Thanks for any idea,ran

Hi All, I have simple code to assign preemption priority and subpriority. I have tested this code on the stm32f103. Even if i set the preemption priority and subpriority, when I read the priority it returns as 0x00. According to the information from STM32 datasheet the priority register is 0xe000e40e ( NVIC channel 14 belongs to DMA1_Channel4 interrupts).And I could read 0x00 from that register after NVIC was initialized. It means NVIC channel #14 has the highest priority in the system.I do not understand that way library function does not work as expected. Do you have any suggestion? NVIC_InitTypeDef NVIC_InitStructure;   /* DMA1 Channel4 interrupt setting */ NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel4_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 11; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 11; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); /* -- */ priority = NVIC_GetPriorit

Dear comunity, I'm having some trouble using the SPI communication protocol between two MCU. The aim is to transfer data via SPI(2) from MCU to a Murata MLM32L07x01 (based on STM32L072).In my program, I'm using also UART2 / ADC / RTC / LoRa communication (SPI1) / GPIOs. When I want to transfer data, I'm using the HAL_SPI_Receive function in the Murata like this : HAL_SPI_Receive(&hspi2, aRxBuffer, sizeOfSPI, 3000);If the variable sizeOfSPI is right, I received well the data and my program is following. However, when I don't know the size of SPI transfer (assuming I'm waiting for 80 char and I received only 60), I still receive the transfer char but the Timeout parameter should be used. In the case above, knowing the SPI is in polling mode, it should wait for 3 seconds maximum. However, my program is going into an infinite loop. When I try to debug the software, I see a weird value from the HAL library : In the SPI_WaitOnFlagUntilTimeout function, the call of HAL_GetTick returns 0 :

Hello everybody!I am going to work with USB on the STM32F413 . The datasheet says:"The USB OTG full-speed controller requires a dedicated 48 MHz clock, which is generated by a PLL connected to the HSE oscillator"I would like to ensure if it can work only with HSE or HSI will work too, in spite of what the datasheet says? I thought it could be not a full data, because when I select HSI as source for the PLL Spurce MUX in the CubeMX , it does not show me any error. Thank you in advance!

What are the CAN bit segment 1 and 2?CAN specification doesn't use those names.Are they PROP_SEG and PHASE_SEG1 or PHASE_SEG1 and PHASE_SEG2?All three are programmable by the CAN spec, but PHASE_SEG2 should be max. of PHASE_SEG1 and INFORMATION PROCESSING TIME which is "less than or equal to 2 time quanta".I would guess that bit segment 1 = PROP_SEG and bit segment 2 = PHASE_SEG1. PHASE_SEG2 is then probably equal to PHASE_SEG1.Is that right?I also realized that in STM32F427 data sheets it says that CAN can work upto 1Mbps.I wonder how? Is there Cube restriction or why it seems impossible?With "full speed" (APB1@45MHz) I tried to set prescaler to 5, bit segment1 to 2 and bit segment2 to 3, but CubeMX says they are too small values.I'd think that it would mean:Tq=111.11 ns,SYNC_SEG = 1TqPROP_SEG = 2TqPHASE_SEG1=3TqPHASE_SEG2=3TqTotal 9Tq/bit = 999.99ns

Please recommend microcontroller with reference of below inputs

I read all the .cpp and .h library but I can't find any routine that shows the RFID of the card, can you help me ?

Hello,We have experiended RD/WR problems with standard smartphones.Is there any list of recommended smartphones for operating with ST25DV64K?Regards, Ramon.

I was trying to write a code to integrate a input signal, triggering the ADC with a timer, and print the information every 0.5 s with the systick. I don't understand why After the first saturation of the timer, the code doesn't enter in the systik handler anymore.

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I was searching for smaller and cheaper MCU with CAN network. I have chosen the STM32F042F4P6 trough CubeMX but now when I try to enable CAN in CubeMX I cannot because it's grayed. What am I doing wrong?

STM32G071RB: According to RM 3.7.1 reset value of FLASH_ACR is 0x00040600, verified on hardware. But the description of indiviual bits doesn't fit.RM: Bit 11 ICRST, Bit 10 reserved (cleared), Bit 9 ICEN, Bit 8 PRFTEN, so cache enabled, prefetch disabled, reserved bit set???

Posted on April 19, 2017 at 12:18Hello, I would like updating the firmware of an STM32F767ZI using the internal boot loader. I am using the USART3 (PB10 and PB11). In order to transfer the program I am using the program �Flash Loader Demostrator�.My testing application has two parts. A led blink implemented in the main loop and the jump to the internal boot loader implemented in and EXTI interrupt. In that way when I press a button the application jump to the internal boot loader code and starts the updating process.When I press the button and I star the communication with the flash Loader everything seems ok:When I try reading the firmware appear the following message:I try enabling the reading with the Flash Loader:The program informs that the memory will be erased. After the process the result is:When I try reading the program the result is the same as before:If I use the ST_LINK Utility I can read and write the memory without problems. The configuration of the Option Bytes is:I ha

​Through the BLE, does the STM32WB to harvest it's own energy? or how to integrate an energy harvester base on the RF communication for this component?

Hi,I try to test the MotionAW algorithm, but the MCU gets stuck at MotionAW_Initialize()I use STM32L476QE, with IAR version 8.22 (DSP is enabled in the project settings as well as FPU).I added MotionAW200_CM4F_IAR8_ot.a and motion_aw.h to the project.I use LSM6DS3 but never got to the point where I get data from it, stuck on initialization.Any ideas?

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Hi, i'm using NFC04A1 with NUCLEO-F401RE board, and im very new on this.Trying to send NDEF texts (88bytes) with <1sec period ,but i cannot make it short less than 1.2sec.Here's the while loop code with 1.2sec period.while (1) {  NFC04A1_LED_ON( BLUE_LED ); while( NDEF_WriteText(myMessage) != NDEF_OK ); NFC04A1_LED_OFF( BLUE_LED ); HAL_Delay(600); HAL_GPIO_TogglePin(GPIOA,GPIO_PIN_5); }I have tried many times with various HAL_Delay value and 600ms is the best for now.Can't it be shorter? Please give me some advices.Thanks.

Hi All,I use STM32f103C8T6 mcu to control a 5" TFT (480x272) display in direct mode.TIM1 PWM is the 9Mhz pixel clock,TIM2 is the column counter,TIM3 is the row counterand TIM2 channel 2 in compare mode, start SPI DMA transmit once in lineso, the SPI TX DMA not work after power up. (see my oscilloscope and dont show a picture) but, reset the mcu or reprogram its work perfectly.test hardware the "blue pill" :)i use my function libraryes.i uploaded my full project.Any Idea?

Hi,I'm having a hard time configuring the system clock. It seems that I'm achieving 16MHz, but I want to run at full speed (216MHz). From what I'm seeing, the problem is that the System Clock Switch isn't changing to PLL. If I try to change bits 1:0 in the RCC_CFGR register, the status returns that the HSI is enabled.RCC_BASE EQU 0x40023800 RCC_CR EQU RCC_BASE ;offset 0x00 RCC_CFGR EQU 0x40023808 ;offset 0x08 RCC_PLLCFGR EQU 0x40023804 ;offset 0x04 RCC_AHB1ENR EQU 0x40023830 ;offset 0x30 GPIOB_BASE EQU 0x40020400 GPIOB_MODER EQU GPIOB_BASE ;offset 0x00 GPIOB_ODR EQU 0x40020414 ;offset 0x14 GPIOB_EN EQU (1 << 1) MODER0_OUT EQU (1 << 0) PLLM EQU (4 << 0) PLLN EQU (216 << 6) PLLP EQU ((0 << 16) :OR: (0 << 17)) PLLQ EQU (9 << 24) PLLHSE EQU (1 << 22)   AREA STM32, CODE, READONLY ENTRY EXPORT __main __main BL ENABLE_CLOCK BL ENABLE_GPIOB B CONTINUE

Hey everyone,I've got an SPI line setup on my stm32f722ze.Cache is not enabled. It worked and I'm not sure whether the code was changed, but it receives junk now. The DMA is triggered which shows that when I send data, it is receiving it, but not the correct data.I Have verified the data that's being sent via an oscilloscope.The stm's spi line is coupled to a esp32. The esp32 is the master and the stm is running as slaveHere's the relevant code for the stm32:Hal_msp.c:void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi) {   GPIO_InitTypeDef GPIO_InitStruct; if(hspi->Instance==SPI1) { /* USER CODE BEGIN SPI1_MspInit 0 */   /* USER CODE END SPI1_MspInit 0 */ /* Peripheral clock enable */ __HAL_RCC_SPI1_CLK_ENABLE();   /**SPI1 GPIO Configuration PA4 ------> SPI1_NSS PA5 ------> SPI1_SCK PA6 ------> SPI1_MISO PA7 ------> SPI1_MOSI */ GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStr

Hello,Kindly provide us the gerbers of X-NUCLEO-NFC03A1.We wanted to know is it 2-layer or 4-layer board?ThanksSneha J NachinolkarHardware Development Engineer+91-8805452817

Posted on June 01, 2017 at 17:34Hello, I have some problems to implement a bootloader in a STM32F4. I searched on internet and I found coherent informations and examples, but I 'm not able to make simple test work.Here my simple code:bootloader (writed on 0x08000000 address):&sharpdefine APPLICATION_ADDRESS        0x08008000typedef void (*pFunction)(void);pFunction appEntry;uint32_t appStack, test, i;int main(void){    /* Get the application stack pointer (First entry in the application vector table) */    appStack = (uint32_t) *((__IO uint32_t*)APPLICATION_ADDRESS);    /* Get the application entry point (Second entry in the application vector table) */    appEntry = (pFunction) *(__IO uint32_t*) (APPLICATION_ADDRESS + 4);    /* Reconfigure vector table offset register to match the application location */    SCB->VTOR = APPLICATION_ADDRESS;   &n