Solved

Hi,I would just like to know the date code on the LSM303AGR on our PCB Board. So far I have not found any document to interpret the date code. The markings are 636 AGR.Regards,Markel

Hello,I am working with the ISO15693 chip ST25DV64K for the first time.The V_EH output goes to a 1.8 V regulator and the output of the regulator supplies a microcontroller.I would like to know how can I ensure that the microcontroller first writes its data into the EEPROM of the ST25DV64K, via I2C, and then the ST25DV64K chip is ready to be read out via RFID.If the voltage at the V_EH is too low and the microcontroller is not yet on, I do not want the ST25DV64 chip to be accessible via RFID. Only when the microcontroller is on and the data in the EEPROM (ST25DV64K) has been updated can the ST25DV64K be read out via RFID.How can I achieve this ?

Hi all,I have trouble with receiving one byte on SPI1-DMA1. All is working if I set more bytes to transmit/receive (2 and more) but when I try to send only one byte it do not trigger interrupt on Rx channel (DMA1 channel 2).I can see transmitted bytes on logic analyser. Transmitting is without problem and one byte is correct too and triggering Tx interrupt (on DMA1 Cchannel 3).Interesting is that when I set receive one byte (spi1.rxLength = 1) and transmit two (spi1.txLength = 2) so Rx interrupt rise after one byte received.I do not found any detail description about trigger DMA channel from SPI and counting received bytes. Could you help me with to found where problem is?Here is preparig struct://------------------------------       spi1.rxLength = 1; //for DMA_SetCurrDataCounter       spi1.txLength = 1; //for DMA_SetCurrDataCounter       for (int i = 0; i < 10; i++) //some test

Hello ,According to the st25r95 datasheet:"After the power supply is established at power-on, the ST25R95 waits for a low pulse on the pin IRQ_IN (t1) before automatically selecting the external interface (SPI) and entering Ready state after a delay".I have a custom board and I want to read the device id over spi, but the IRQ_IN pin is not connected. Can it work without IRQ_IN low pulse? Can I communicate with the device, currently I have nothing on MISO line.

We have already a product based on STM32F429VGT6 which uses USB Host feature to read out data from plugged in USB-memory sticks. Our device have an USB A input so that normal USB-sticks can be inserted.This works well.Now there is an USB-stick which is going to transfer data via a FTDI FT230XS chip. The STM32F429VGT6 needs to communicatie with this chip. Should that be possible?Is there already software which does that?Best regards,Hilco

HIcommunityI am new to the STM32 world and am looking for the name of the library file in which the function HAL_SPI_Receive (..) is included as source code or the direct source code of this function.thanks for help

I have a generic parallel LCD screen. 24 bits RGB, vsync, hsync, pclk, data_enable, disp_on,..The examples I see on the wiki only shows the HDMI connection and DSI. How do you configure this for DPI?Is this a good start? (In the device tree)panel_backlight: panel-backlight { compatible = "gpio-backlight"; gpios = <&gpiob 0 GPIO_ACTIVE_HIGH>, <&gpioc 4 GPIO_ACTIVE_HIGH>; default-on; status = "okay"; };   lcd0: display@0 { compatible ="panel-dpi"; label = "lcd"; enable-gpios = <&gpioh 15 GPIO_ACTIVE_HIGH>; backlight = <&panel_backlight>;   port { lcd_in: endpoint { remote-endpoint = <&ltdc_out_rgb>; }; };   panel-timing { clock-frequency = <33000000>; hactive = <800>; vactive = <480>; hfront-porch = <40>; hback-porch = <40>; hsync-len = <24>; vback-porch = <29>; vfront-porch = <13>; vsync-len = <3>;   hsync-active = <0>; vsync-active

Hi.. Geeks From few days I'm playing with SBSFU. I'm using default application SBSFU files (STM32L496G-Discovery_AWS) with custom user application with STM32L496ZG The default code was ported on STM32L496AG which is x-cube AWS I have simply adopted it's default BootloaderOSC files To get synchronized with the original application, I have been change linker script of the user application as per the default app As per the default app,I've been linked out all applications with SBSFU script file and I'm able to generate the .sfb files Now my problem is, when I upload the .sfb file using teraterm YMODEM then SBSU files starts executing and I'm getting logs accordinglyhere is the logs ====================================================================== = (C) COPYRIGHT 2017 STMicroelectronics = = = = Secure Boot and Secure Firmware Update = ======================================================================     = [SBOOT] SECURE ENGINE INITIALIZATION SUCCESSFUL = [SBOOT] STATE:

Hello everyone,I've just realized a PCB using STM32H7A3 micro. But at second step I already fell.I've my system powered up at 3.3V from an external circuit. The quality seems to be good.I've tried to program the micro using STlink through a SWD port. The result is "No device found on target ".I'm sure the setup works as I used it for programming the devlopement board STM32H745I-DISCO. In that case I've had no problem.I've checked the signals on the PCB as far as reachable:Reset is pulled highBoot0 is pulled lowVCC is stable at 3.3V and appears at all desired pins of the boardGND is connected to all the necessary pinsVDDA and VDDS are connected to 2,5V and GNDPDR_ON is connected 3.3VI suppose could be a matter of power supply so I started checking my configuration.Here's my condition. I use an external regulator and I want to use only the internal LDO:What's strange to me is that I expect to read something around 1,2V across the capacitorsconnected to VCAP while actually there's nothing

I am currently trying as follows:HAL_FLASH_Unlock();HAL_FLASH_Program(FLASH_TYPEPROGRAM_HALFWORD,0x40023BFD,10);HAL_FLASH_Lock();However, no data is recorded.

Ive also tried reading the linker documentation but didnt understand much.

Hi everyone，Now it is very difficult to find the learning materials about cudemonitor, so can we download the project（cudeIDE prj, cudemonitor_orj，cudeMX prj） of the online embedded event webinar？

Hi,I'm working on a project with STM32F746 and touchGFX. When I move (use move mixing) some widget witch its alpha value isn't 255 or change screen, the screen is flickering. I'm using an external frame buffer(SDRAM) and I did LTDC layer settings as shown LCD's reference Manuel. I don't know where the problem is.Here is a video that shows the problem: https://www.youtube.com/watch?v=lrhtPq7dJXs And if you want my code's config part I can share.ın first screen 800x480 (alpha = 0) flex button with a box coming screen. So I think the problem in here with alpha blending.I also had same issue a mount ago and I fixed it by changing LCD's frequency but now it doesn't help. https://www.youtube.com/watch?v=0T0yGYekXSE

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Hi,I have used STM32l562-edk evk hardware and stm32cubeide for software. I have enable freertos in the project. For debug print message purpose I have created one function named as logPrint. char g_msg_buf[100];void logPrint(const char *format, ...){ int DataIdx = 0; int len = 0; va_list args; va_start(args, format); vsprintf(g_msg_buf,format, args); len = strlen(g_msg_buf); for (DataIdx = 0; DataIdx < len; DataIdx++) { ITM_SendChar( g_msg_buf[DataIdx] ); } va_end (args);}When I have run the program and invoke the logPrint function at that time OS stuck at vsprintf. Observation: When I have disable the freeRTOS then function is working properly and i get the data on console.When I have enable the freeRTOS then OS stuck at vsprintf.Please help me to figure out this issue.

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Hi everyone, I have problem when i try to change GPIO inform then i push "generate code". But it replace my old code.can you let me know how to only update inform for code not replace old code?thanks you and sory about my poor english!

Hi all, how are you?. Yesterday I was unable to make the RTC work on my STM32F103C6, miraculously I've noted that the program was giving an error condition (until that moment I wasn't using the error handler function, now I'm using it) then I found that the error was that the function HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk) used by HAL_RTC_Init() was returning zero as the frequency for the RTC was consecuently had a result or error initializing the RTC.The line of HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk) where the frequency was returned is the 584 ant the code is the followingreturn (frequency);The line of HAL_RTC_Init() where the assigning was happening is the 364 and the code is the followingprescaler = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_RTC);to solve the problem I had to change the line 584 of HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk) to the followingreturn (uint32_t) frequency;Now the definitions:The definition of the function to get the frequency on line 38

Posted on May 31, 2017 at 19:33I am using an stm32f030x8. I am using the HAL. Normal operation I can use I2C reads/writes with no problems; however, I can occasionally have errors in the receive data when more activity is taking place on the MCU. I scoped the lines and the bytes on the line are correct/as expected. While step debugging, I can see that the data seemingly gets shifted by a byte when this occurs (i.e. byte 0 in the receive array is some garbage value that was not actually on the bus (verified from scoping the lines), byte 1, 2 etc are the expected data. Things to note: using synchronous reads here, interrupts are not in play. this system uses single priority interrupts (no nesting)Things I have verified:The actual data on the physical line is correct (scope + logic analyzer verifies this)I verified that the pointer address for the buffer being passed in does not get changed (rules out memory corruption of that pointer)Verified that the bad d

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HiI`m trying to read temperature from a Sensirion STS3X sensor using I2C3 with PB13 and PB14 configuredMy problem is , during tranmission I2C_WaitOnTXISFlagUntilTimeout returns HAL_ERROR and I can`t talk to sensor.I have used Cube project to generate filesI2C Initstatic void MX_I2C3_Init(void) {   /* USER CODE BEGIN I2C3_Init 0 */   /* USER CODE END I2C3_Init 0 */   /* USER CODE BEGIN I2C3_Init 1 */   /* USER CODE END I2C3_Init 1 */ hi2c3.Instance = I2C3; hi2c3.Init.Timing = 0x20502B38; hi2c3.Init.OwnAddress1 = 0; hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; hi2c3.Init.OwnAddress2 = 0; hi2c3.Init.OwnAddress2Masks = I2C_OA2_NOMASK; hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; if (HAL_I2C_Init(&hi2c3) != HAL_OK) { Error_Handler(); } /** Configure Analogue filter */ if (HAL_I2CEx_ConfigAnalogFilter(&hi2c3, I2C_ANALOGFILTE

I am using the GUI on the top layer above live video and i must insert some box behind the widgets otherwise i got noise in the background on the top layer

Please fix.Thanks.

I am using board P-L496G-CELL0x and STM32CubeExpansion_Cloud_AZURE_V1.2.1 software. When I use a SIM card without a Pin Code, the program works fine and I can connect to Microsoft Azure. But the problem is that when the SIM card has a Pin Code, the program does not run and does not ask me for a Pin Code in the terminal.What should I do to use the SIM card with Pin code?There is a function in the program called:at_status_t called fCmdBuild_CPIN (atparser_context_t * p_atp_ctxt, atcustom_modem_context_t * p_modem_ctxt) That is related to the PIN code, but I do not know how to use it and what other functions may should use.

Hi I'm trying to read the OTP bits on the discovery board STM32MP157C-DK2 using the STM32CubeProgrammer v2.4.0. The GUI version can't read the OTP bits, but I tried with the Command Line Interface and it gave me the following error:C:\Program Files (x86)\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin>stm32_programmer_cli.exe --connect port=usb1 -otp displ ------------------------------------------------------------------- STM32CubeProgrammer v2.4.0 -------------------------------------------------------------------       USB speed : High Speed (480MBit/s) Manuf. ID : STMicroelectronics Product ID : DFU in HS Mode @Device ID /0x500, @Revision ID /0x0000 SN : 002A00413338510939303435 FW version : 0x0110 Device ID : 0x0500 Device name : STM32MPxxx Device type : MPU Device CPU : Cortex-A7     UPLOADING OTP STRUCTURE ... Partition : 242 Size : 1024 Bytes   Uploading OTP data: ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒Error:   Error: u