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I have a STM32G431 MCU board and TIM8 is triggered by an external input pin to perform a counter capture and initiate a DMA transfer for CH1. What I would like to also do on TIM8 is perform a counter capture based on a software trigger to CH3. Is this possible?And yes I have read the Ref Manual ;) But I don't see any discussion of software triggers for the counters.EDIT addition: Worst case I will externally connect a GPIO output to the TIM8_CH3 input and use a dma channel to capture & store the timer count value. In my high priority ISR I will write the GPIO to initiate the capture.Thanks,BT

We have a product that is permanently powered. We'd like to be able to persist some frequently changing data through a reset and firmware upgrade (using the in-built ROM bootloader) by just reserving (and no-init'ing) an area of RAM, however I'm concerned that the ROM bootloader may use areas of SRAM for it's own purposes, thus trashing our saved data. Does this happen? If so, are there any areas it wouldn't touch?The specific micro we're using is the STM32L451.

Debugging the STM32L053, the STM32CubeIDE (v.1.4.2 on MAC) asks to install the ST-link Server.I install the ST-link server (v1.3.0) on my mac, this seems to be successful, but for the STM32CubeIDE, nothing has changed and it keeps asking to install the ST-link server:"ST-Link Server is required to launch the debugsession. Please download it on www.st.com";Since yesterday, I'm not able to debug any longer...What should I change in the settings?This problem is the case whether I choose the ST-LINK (OpenOCD) or (ST-LINK GDB server) in the debugger settings

Figure 2 of the LIS2MDL datasheet shows the following picture of the magnetometer axes orientation. However, it's completely unclear if they are labeling the positive direction of the axes. If they did label the positive directions with the X/Y/Z label, it would have a Left-handed orientation (against all convention).Are the positive axis directions indicated by the axis labels? Is this a left-handed coordinate frame?

I've been working successfully with the STM8 MCUs, using ST-LINK, building, debugging. But I so far can't figure out how to get started building for the STM32L4x6, which hosts the ST25R3911-DISCO board.  Can't even pin down an IDE yet.

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Hi guys,i have the following problem. I configure the interrupts as follow.INTC.BCR.R = 0; INTC.IACKR[0].R = (uint32_t)&VectorTable[0]; INTC.CPR[0].B.PRI = 0;   // enable interrupts __asm__ volatile ("wrteei 1" : : : "memory");After that, i configure one Etimer Channel with timer compare interrupt. The interrupt flag will set in etimer module, but the ISR will never be called.If i change my configuration to the following, the interrupts will come:INTC.BCR.R = 0; INTC.IACKR[0].R = (uint32_t)&VectorTable[0];   (void)INTC.IACKR[0].R; // read back   INTC.CPR[0].B.PRI = 0; // enable interrupts __asm__ volatile ("wrteei 1" : : : "memory");I would be happy if someone could explain what I'm doing wrong, because I can't find anything about it in the reference manual.best regardsdavid

The sleep mode option in SPC560P-DISP Discovery (SPC560 P Line) is removed as per reference document. I have attached the revision history screenshot of reference document.My question isis SPC560P-DISP Discovery board have sleep mode option or not?please see the image for reference

I need to read the NFCTag ID but I haven't worked out how as yet. Can anyone point me at an example?David

Works:   printf("hello world\n");Does not work:   printf("goodbye world !");I have tried to find the answer in gcc´without success.

int Pulse(void)   {   TIM_TimeBaseInitTypeDef TimeStruct;     RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);     TIM_SelectInputTrigger(TIM2,TIM_TS_ITR3);//   TIM_SelectSlaveMode(TIM2,TIM_SlaveMode_External1);     TimeStruct.TIM_Prescaler=0;   TimeStruct.TIM_CounterMode=TIM_CounterMode_Up;   TimeStruct.TIM_Period=29;   TimeStruct.TIM_ClockDivision=TIM_CKD_DIV1;   TimeStruct.TIM_RepetitionCounter=0;   TIM_TimeBaseInit(TIM2, &TimeStruct);   TIM_ITConfig(TIM2,TIM_IT_Update,ENABLE);     ///Master Configuration code   ...       }     void TIM2_IRQHandler(){     if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET)   {   x=x+1;   TIM_ClearITPendingBit(TIM2, TIM_IT_Update);   }     }I am going to config a master and slave configuration under STM32f10x. I connected them correctly but at the first step it gener

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Hi, stThe MCU platform I use is nrf52840. The sensor uses steval-mki207v1. The hardware connection method is mode 1. The SPI mode of MCU is mode0, the frequency is 8MHz, and the bit order is MSB first. On this premise, no matter how many times I read the chip ID, the value is 0.What is the problem?

How should a UART interface be designed so that a robust communication possible can be established between two MCUs. The following table is shown in a data sheet from Texas Instruments. You can see the error rate depending on the baud rate. According to my research a low baud rate below 57600 bit/s and 16x oversampling is suitable for a communication over a longer distance. 1) Are the error rates manufacturer dependent?I can't find any application notes from ST for implementing a reliable UART.2) Are there any recommendations on which communication protocols should be used? (Something like TCP/IP over UART).Thanks in advance

I have gone through the vn5e010ah datasheet but it will not explain about the formula to calculation of Vsense , Rsense with respect to load current.

I have NUCLEO-STM32H743 board and some STM32H750 MCU-s. As I can see in the board manual, it has on board SWD interface. I want to use that board to program and debug aforementioned MCU-s and, as far as I can see, this should be possible. Where can I find connection diagram for this?I am just starting to build the PCB board for my project and I have to reserve pins for SWD connection. Also some questions:If I stick to programming debugging using NUCLEO boards, what are the drawbacks of using it instead of ST-Link?ST-linkV2 is much cheaper than ST-linkV3. What are the differences?

Hi Technical Team,I have SPC560P-DISP Discovery board which is based on the 32-bit microcontrollers Power Architecture® Core SPC560P50L5. For programming this board, i am referring "RM0022 Reference manual"( revision history of document : Revision - 8 and Date :10-Jul-2015). SPC560P-DISP Discovery board has 32 external interrupt only (Table : 99 (EIRQ[0:31]) in reference document ). But i need to configure 80 input resources as external interrupt. My question are1. How can i directly configure 80 input resources as external interrupt?2. If it is not possible for 80 external interrupts, what is the alternate solution for this?Please provide your input to proceed my development work.

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Hello,Here is code:Prescale=7;Periode=7999;Pulse=3998;void PWMControl(unsigned int Freq){ TIM_TimeBaseInitTypeDef TimeStructureure; TIM_OCInitTypeDef TIMOCStructureure; TimeStructure.TIM_Prescaler=Prescale; TimeStructure.TIM_CounterMode=TIM_CounterMode_Up; TimeStructure.TIM_Period=Period; TimeStructure.TIM_ClockDivision=TIM_CKD_DIV1; TimeStructure.TIM_RepetitionCounter=0; TIM_TimeBaseInit(TIM4, &TimeStructure); TIM_Cmd(TIM4, ENABLE); TIMOCStructure.TIM_OCMode=TIM_OCMode_PWM2; TIMOCStructure.TIM_OutputState=TIM_OutputState_Enable; TIMOCStructure.TIM_OCPolarity=TIM_OCPolarity_Low; TIMOCStructure.TIM_Pulse=Pulse; TIM_OC1Init(TIM4, &TIMOCStructure); //TIM_OC1PreloadConfig(TIM4, TIM_OCPreload_Enable); TIM_ITConfig(TIM4,TIM_IT_Update,ENABLE); }   void TIM4_IRQHandler(){   if (TIM_GetITStatus(TIM4, TIM_IT_Update) != RESET) { X=X+1; TIM_Cmd(TIM4, DISABLE); TIM_ClearITPendingBit(TIM4, TIM_IT_Update); } }The above code generates a 1Khz with 50%

I'm trying to generate a signal from DAC3 (connected only to internal peripherals) from my G473 and output that value through OPAMP1 in follower mode. The output of the pin of the OPAMP is stuck at low forever however. I set the DAC from CUBEIDE as such:static void MX_DAC3_Init(void)   { DAC_ChannelConfTypeDef sConfig = {0}; hdac3.Instance = DAC3; if (HAL_DAC_Init(&hdac3) != HAL_OK) { Error_Handler(); }   /** DAC channel OUT1 config */ sConfig.DAC_HighFrequency = DAC_HIGH_FREQUENCY_INTERFACE_MODE_AUTOMATIC; sConfig.DAC_DMADoubleDataMode = DISABLE; sConfig.DAC_SignedFormat = DISABLE; sConfig.DAC_SampleAndHold = DAC_SAMPLEANDHOLD_DISABLE; sConfig.DAC_Trigger = DAC_TRIGGER_NONE; sConfig.DAC_Trigger2 = DAC_TRIGGER_NONE; sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_DISABLE; sConfig.DAC_ConnectOnChipPeripheral = DAC_CHIPCONNECT_INTERNAL; sConfig.DAC_UserTrimming = DAC_TRIMMING_FACTORY; if (HAL_DAC_ConfigChannel(&hdac3, &sConfig, DAC_CHANNEL_1) != HAL_OK)

Hi ST Community,I am having trouble to make a NDEF record in a ST25DV16k tag be recognized by Android 8.0, I already read both AN4910 and AN4911 and understood the limitations in Android 8.1 regarding the NDEF and CC headers, but my problem is that even when I clone the memory content from a working ST25DV04K tag into a ST25DV16K, the 16K tag is still not being recognized by the Android 8.1 smartphone, here are the memory contents of both tags:  As can be seen on the images, the whole content of the 04K tag was mirrored into the 16K tag, including the CC file and the NDEF header, so for all intents and purposes the 16K tag must be interpreted as a 512 Bytes tag, and the NDEF record (ST website) must be correctly identified, right?The Android 8.0 phone correctly identifies the 04K tag record and opens the website, but when the 16k tag is presented it only gives the option to open ST25 app, showing that the NDEF record was not recognized by the android system.In a smartphone wi

Hi everyone, My question is what do I have to do ?I read too much information about IAP to really understand what do I need to do. Our firmware is working great for now, we want to update the firmware without stop everything and on restart we can be in the newer firmware. The image "On the fly.png" shows our procedure.During the upload process, we get the byte through the UART (parsed because of our protocol) and put these data in the FLASH (actually it works for put / read data at address 0x08100000), "Memory map.png". I want to do it really simple :Our initial firmware is contained in the Flash Bank 1 ;Transfer firmware through UART to Flash Bank 2 ;Restart in bootloader mode so we go to Flash Bank 2 = newer firmware. So my idea was to :Upload all data from START_ADDRESS = 0x0810000 ;BOOT0 is connected to ground (so 0) -> start in bootloader ;BFB2 should be 1;FB_MODE should be 0 because at each upload we send data to the address 0x0810000. But I read some

Hello Everyone, I am using STM32F767 and have generated code from STM32CubeMX. I am trying to convert a string of hexadecimal to float value, but it seems that the float is not converting the value. I am using Keil IDE UV5 ,and I have tried setting "Floating point hardware" in Target options with "Not used", "Single precision" as well as "Double precision", but nothing seems to work. Am I missing something? or is anything needed to be done so that "float" conversion works?My code is as follows:-char val[20];float f; uint32_t num; sprintf(val,"%02x%02x%02x%02x",0x43,0x71,0x3E,0xE9); printf("val is %s\n\r",val); sscanf(val,"%x",&num); printf("num %x -- %d\n\r",num,num); f = *((float*)&num); f = ((float)num); printf("float is %.2f\n\r",f);This prints "float is 1131495145.00" whereas it should be "241.245743"Help will be appreciated.Thank you.

I have to keep a pin high for a certain amount of time, about 1us, I figured that it probably makes sense to do this with a timer. I was going to use SysTick but I decided that it makes mores sense to learn the timer peripherals.I think I have the configuration and execution steps correct to make a simple function to create an approx. delay (for testing purposes) but I cannot seem to get it working as desired. I did notice that I was not able to see the CEN bit enabled when debugging, but I imagine that this is not possible? Below is my code, any hints appreciated!// GPIO registers previously enabled and set up, they are // confirmed to work.   /* config TIM6 */ // Enable TIMER6 as it is on the APB1 bus RCC->APB1ENR |= RCC_APB1ENR_TIM6EN;   // One pulse mode (counter stops counting after event) TIM6->CR1 |= (TIM_CR1_OPM);   /* Function for delay */ void delay1us(void) { /* execute a delay */ // Clear update event flag TIM6->SR = 0;   // Prescaler TIM6-

We have CubeMX installed on Ubuntu 18, have been using it with no issues. We now need to update to 6.1.1 howver when enter SetupSTM32CubeMX-6.1.1.linux it responds with command not found. The file is the correct user with chmod to 777, we have tried sudo. We have looked at the 6.1.1 release ReadMe.We are installing from a normal Linux prompt.