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Hello. I'm writing a led blinking code for SPC560B50 but after programming the code into mcu, the mcu takes high current about 300mA and damaging. My circuit and mcu don't have any problem before programming.

This function uint32_t LL_RTC_DATE_Get(RTC_TypeDef *RTCx) reads 4 times the DR(Date register) to take the date from RTC.After the first read, the shadow registers are unlocked (in case don't bypass them). The next three readings from DR register made without locked Shadow Registers. The workaround is not to use this function.

I want to configure USB+STM32f407vet6 as host-only and use in full speed mode.this schematic is correct ? thanks a lot

This part is mentioned in several places: AN4938, Rev 3​, http://www.openstm32.org/tiki-view_forum_thread.php?forumId=2&threadId=7657&comzone=show#threadId7657 but I can't find specifics on it.

I want to interface pen drive with STM32f407. Any example code for this?Using STM32F4xx_DSP_StdPeriph_Lib_V1.8.0 in my code.

When working with a STM32F030C8T6 board, communicating with another board through serial comms (115200bps), I suddenly started to get erroneous characters once in a while, when the remote board were sending data at the same time.It's a block protocol, with the remote board sending 256 byte blocks and the F030 board sending ACKs (hex 0x06) along the way.It had worked fine, when the ACK from the F030 was sent after a full block. When sending while there was still incoming data, the start bit of the outgoing data was suddenly shortened a bit, resulting in incorrect data being received in the remote end.The logic traces show this.Start bit + one bit should be 17.38us (bit time 8.68us), which can be seen to be correct in the "normal startbit" screenshot. In the "short startbit" screenshot, this time is only 12.62us.( I don't know if it's actually the startbit or the first bit that is corrupted, but assume it is the startbit). Following bits are all okay.This causes the 0x06 to be read as 0x

Hello,I have been tasked recently with porting some code from another microcontroller into the STM32H7. Right now I am taking care of the UART communication and some parts around that. And I would like opinions and advice about some things if possible.Since the architecture is quite a bit different and the clock is so high, I wanted to see how can I increase performance on previous implementations. Some targets will do quite a bit of math processing, while some will mostly communicate with multiple targets.I've been looking at the documentation of the memories and DMA as well as AN4891.Of note is that one target will be using ethernet.Previous implementations of UART communication simply had a TX and RX interrupt sending/filling a buffer. Some had some DMA for TX.My idea is to have:CPU only using DTCM if possible for data.CPU using ITCM for most (all?) ISRs.CPU running code from flash with cache on.This is to avoid cache misses which can happen (always?) during interrupts and to avoid

USART1 interrupt only receives one string, processes it well and returns it back as expected. But when i issue the second string, the check USART_IT_RXNE status flag is always false. I tried to reset it right after the preceeding string is sent but all in vain. Here is my code...Am using the tiny STM32F303K8void USART_puts(USART_TypeDef* usar_tx, volatile char* str) { while (*str) { while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET) {} USART_SendData(usar_tx, *str); str++; } }   void USART1_IRQHandler(void) { if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) { static int cnt = 0; char ch = USART_ReceiveData(USART1);   if (ch != '\r') { rcvd_str[cnt++] = ch; } else { rcvd_str[cnt] = '\r'; cnt = 0; USART_puts(USART1, rcvd_str); USART_ClearITPendingBit(USART1, USART_IT_RXNE); } } }What on earth am i doing wrong or missing.

I have a simple switch on an LED project on a homemade STM32F405 development board. I am using STM32 Cube-MX and It is all working OK and turns an LED on and off via a momentary switch on subsequent button presses. The problem is that on starting the program the externally connected LED starts off in the on state whereas I would like it to start in the off state. Here is the relevant section of my main.c code and I was wondering how I can change it to make this happen please? I am hoping that this code snippet is where it can be changed but I can post the whole main.c if required.while (1) { // https://www.youtube.com/watch?v=sWe4kvzLMjY if(HAL_GPIO_ReadPin(GPIOC, GPIO_PIN_3) && tempVar) { // wait 5 ms HAL_Delay(5); HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_5); tempVar = false; } else if(HAL_GPIO_ReadPin(GPIOC, GPIO_PIN_3)==GPIO_PIN_RESET) { // wait 5 ms HAL_Delay(5); tempVar = true; }

Hi.I'm trying to use LSM6DSL sample code from "https://github.com/STMicroelectronics/STMems_Standard_C_drivers/tree/master/lsm6dsl_STdC/example/read_data_simple.c" which is official url from ST.I build code and got error due to missing of "LSM6DSL_FROM_FS_2g_TO_mg/LSM6DSL_FROM_LSB_TO_degC" definition.I couldn't find any from this git code.Actually "LSM6DSL_FROM_FS_2000dps_TO_mdps" definition is also missing and I could find in this forum but couldn't find rest of two.Can you let me know where I can find these?BR.Louiey

Hi everybody.I'm met several scenarios in which the use of HAL_PPP_MspInitwould be too constraining.A typical example is when I'm making a reusable library that needssome peripheral. If I initialize the low level resources for the peripheralsused by the library in HAL_PPP_MspInit functions, then the application codewon't be able to use them anymore.I've always initialized the low level resource before calling HAL_PP_Init andit has always worked. But I would like to have your confirm that I'm doing is legitimated.

Hello,If I understood correctly the a hard fault exception handler should catch all exceptions that do not have a specific handler that should execute when they are thrown. For example: if I enable button interrupts(say falling edge) and configure EXTI0 properly then I press the button(PA0) the cpu should try to find this ISR EXTI0_IRQHandler(). That works fine. But say I don't have that implemented. Shouldn't we end up in 'HardFault_Handler' then?I'm using a STM32F446 controller from an STM32 nucleo board.I wrote this code and tested if the code gets to 'EXTI0_IRQHandler' when I press the button. That works fine. I then commented out this ISR and expected the code to reach the hard fault handler isr when pressing the button. However that does not happen. The code stays stuck in the while loop. Please help me understand why that is happening and please correct me if I understood hard fault handlers in a wrong way. Thanks! This is the code:#i

systick was getting disabled with __disable_irq() . is it possible to use __disable_irq() without causing any effect to systick?

I have saved the attached project file in CubeMX, but I can not open it again. CubeMX just waits forever after I start to open it. What can I do? Please give me a hint quicly, I am working on an urgent project. Thanks.

I am using STM32L051K8 MCU in my project. All the project has been developed. Now there is a need to provide OTA firmware upload. For that I require to use I2C bootloader as I have alreadey interfaced I2C EEPROM. Please let me know whether it is possible on STM32L051K8 MCU.

Hi,I am working on board STM32L476G-DISCO, and I want build the example in STM32Cube_FW_L4_V1.13.0 Repository, ({USERNAME}\STM32Cube\Repository\STM32Cube_FW_L4_V1.13.0\Projects\32L476GDISCOVERY\Examples\BSP),it all build successfully but at the end it show error (compiling main.c...linking...STM32L476G-Discovery\STM32L476G-Discovery.axf: Warning: L6988W: Ignoring unknown patch sdcomp-29491-629360.STM32L476G-Discovery\STM32L476G-Discovery.axf: error: L6050U: The code size of this image (33298 bytes) exceeds the maximum allowed for this version of the linker.Finished: 0 information, 1 warning, 0 error and 1 fatal error messages."STM32L476G-Discovery\STM32L476G-Discovery.axf" - 1 Error(s), 1 Warning(s).Target not created.)How to solve this problem??????Regards.Rizwan

Hi all,I'm faced with a strange issue: updating the RTC calendar does not seem to be possible after a wake-up from standby mode.I have a piece of code that updates the RTC calendar (date and time are uint32_t):// rtc disable write protection RTC->WPR = 0xCA; RTC->WPR = 0x53;     // rtc enable calendar init RTC->ISR |= RTC_ISR_INIT; while ((RTC->ISR & RTC_ISR_INITF) != RTC_ISR_INITF) {}   // set the time rtc_set_time(time); rtc_set_date(date);   // rtc disable calendar init RTC->ISR &= ~RTC_ISR_INIT; // rtc enable write protection RTC->WPR = 0XFF;   This piece of code can be called multiple times to change the RTC calendar without any issue. It works well.However if the MCU enters standby mode and then exists that mode, this code won't work anymore, because the following loop of code never ends:while ((RTC->ISR & RTC_ISR_INITF) != RTC_ISR_INITF) {}I can still read the calendar and it works fine, but I can't update it.

Hi everyone ,We are using our custom bootloader firmware to update our main firmware.To do that we set a flag at a specific location at RAM and reset the MCU.The flag size is 1 byte.At the bootloader firmware read the data from RAM and if this data macthes our flag then entering update fırmware function.After update we clear the data at this RAM location.All this sequence energy is allways ON .We think when turn off the power all RAM data will be cleared.But some of our devices read this flag after energized. Is this because of bootloader firmware use this RAM location and set the data same as our Flag or it holds the old data ?

Dear I want to update the NVM memory on the STUSB4500. May I know the procedure of this, I download the STUSB003 SW lib. it not showing how to write NVM. My guessupdate the register call function void nvm_flash(uint8_t Port)reset Am I right?? also what is the meaning inside STUSB_NVM.h Vic

Hello, I am using nucleo stm32f429zi. I want to add MCP3304 SPI with my controller. It works properly, but my spi clock is 1.325MHz, which means my channel sample rate will be 1.325MHz/21=63095Hz (sample rate for 4 differential channels). so each channel only has 15773Hz sample rate. is it possible to refine my spi clock frequency close to 2Mhz?Thank you for all helps.

I need this in order to build an interface with this controller in my product.

HiI used a NucleoF072RB and Cube MX. I use Atollic TrueStudio.I wanted to know how to setup and AND before integrating it in another project. So I created a new blank project. I set tup the porject as per the picture ADC_setup. No pin were activated on the MCU (except the default settings).I generate my code. It compiles. I test one line of code: /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) {  /* USER CODE END WHILE */ temp3++;  /* USER CODE BEGIN 3 */I previously wrote this right afterMX_ADC_Init(): /* Initialize all configured peripherals */ MX_ADC_Init(); /* USER CODE BEGIN 2 */ /*Calibrating the ADC*/ ADC1->CR &= !ADC_CR_ADEN; ADC1->CR |= ADC_CR_ADCAL; while ((ADC1->CR & ADC_CR_ADCAL) != 0){  temp++; } /* Enable ADC*/ ADC1->CR |=ADC_CR_ADEN; while((ADC1->ISR & ADC_ISR_ADRDY) == 0){  temp2++; } /* USER CODE END 2 */temp4++;Wh

Question regarding an implementation of RS485 on an STM32.The application note (reference guide) refers to 4 bits stored in the USART_CR2 register which can be used as an address comparison to aid with waking only when required.“Address mark detection (WAKE=1)In this mode, bytes are recognized as addresses if their MSB is a ‘1 else they are considered as data. In an address byte, the address of the targeted receiver is put on the 4 LSB. This 4-bit word is compared by the receiver with its own address which is programmed in the ADD bits in the USART_CR2 register.�?But this limits the number of devices to 15 (plus a master) and the RS485 standard can handle 32 connections and the address is sent as a full byte (so theoretically 255 connected devices)So; is this a handy device they’ve provided if you only want a few connected devices or am I missing something more?

I downloaded the last version of stm32cubeMX and touchGFXdesigner, I am trying to test some examples of touchGFX, when I open the generated .ioc file for the target stm32F746G-Discovery V2.0.0, I saw the proyect needs the STM32Cube FW_F7 V1.13.0 package, but stm32cubemx show me an error "error downloading the following file stmcube32_fw_v1130.zip" and I can't find the package to manual download.Can anybody help me? Thanks!

Will the support LL drivers? Does anybody know it? I love LL drivers. Thank you.