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Recently, I'm working on a 6-layer PCB design of STM32F746BGT6 and 128Mbit SDRAM with LTDC ( 4.3" LCD 800x480) and so far I connected the FMC bus traces with 12mil clearance (Reduce crosstalk) and 6mil width(50-ohm transmission line). My board Stack-up is 1-signal/power 2-ground 3-signal/power 4-ground 5-signal/power 6-ground and noted that FMC signals are in the 3rd and 5th layers.I also do the length matching for all FMC traces to be 70mm but I'm wondering that maybe routing all the traces in such a small area could cause EMI or signal integrity problems? any suggestions from PCB experts will be appreciated./Milad

Trying to port my code to CMSIS-RTOS v2 and running into some missing functionality. I don't see an osThreadSuspendAll() replacement.

Have a project that has been proted from CubeIDE to a more standalone project structure. This because I am requierd to have the project run from other IDEs like C:b or even from a comandline environment only. The project is based on the STM32H743 Porting the project was ok, using the same arm-noen-eabi as cubeIDE do and by using the compiler flags and linker flags as CubeIDE have, and by using the startup and memory map as generated by cubeMX. The project compiles fine and I am able to run the debugger with c:b and stlink/v2, but for some reason there are memory areas that no longer is accessible.I am able to start the debugger and most of the code runs just fine, and dissasembly shows that the two setups generates approximatly the same code, but accessing certain memory areas throws a hardfault.The code is simple enough, copy to local variable whatever the pointer points to.Both projects generates the very same code as seen belowc = *pC; ldr r3, [r7, #32] ldrb r3, [r3, #0] strb r3,

I am trying to resolve this pin mapping for the STM32f767 processor, FMC_D9 is connected to SDRAM so PE12. I am planning to use USB OTG so PA10 will be connected to PA10.So, with the above connection, only the pin is left that is PG12. How to resolve the connection for following features, LTDC_B4, FMC_D9, LTDC_B1, USB_OTG_FS_ID.PIN PE12 - LTDC_B4/FMC_D9PIN PA10 - LTDC_B4/LTDC_B1/USB_OTG_FS_IDPIN PG12 - LTDC_B4/LTDC_B1

STM32WB5MM-DK Board User Manual is not available in the product page to download. Can I have a copy of the User Manual please?

I want to implement touchgfx graphic on STM32F429ZIT6 with Newhaven ( NHD-5.0-800480TF-ASXN-CTP) 5 inch TFT Display .Display Driver IC is ILI6122.Can you please tell me the steps to implement touchgfx on my custom board?

The Pulse width value of the waveform in input capture is not matching with orginal Pulse from sensor output .Please help.#include<NEW.h>#include<stdio.h>#include<stdarg.h>void Ultra_setting();void delay(int val);void Tim3_Capture();void Uart1_config();void uart_printf(const char *fmt, ...);uint32_t timeStamp1 = 0,timeStamp2=0,width=0,Distance=0;unsigned int flag=0;void TIM3_IRQHandler(){ uint32_t time = TIM3->CCR1; if (flag==0) {    timeStamp1=time;  } else  {    timeStamp2= time;      if(timeStamp2>timeStamp1)     {      width= timeStamp2-timeStamp1;     }     else if(timeStamp2<timeStamp1)     {       width= (0xffff - timeStamp1) + timeStamp2;     }     Distance = width *(.034/2);     flag=0;   &nb

I've been trying to get anything on the screen for 2 weeks, several hours of coding/trying/reading/watching a day, and still have nada. Other than manually activating backlight after moving backlight enable resistor to GPIO pin. But my primary question for now is the following: I can start the project in CubeIDE with initializing peripherals for my Disco board, but if I don't, there is no way for me to find all the LCD specs for DSI/LTDC.What modes does my screen support? What latencies does it support (CAS latencies and stuff)? What DSI frequency is max? This information is not anywhere to be found. It's not in any datasheets, both MCU and disco's, it's not in any reference manuals, it's impossible to google it out (I spent a good hour trying all possible word combinations and didn't get anything near what I need). So where do I get the specs of the display of STM32F469i disco?

In detail glance on RM0368 Reference manual. I am getting confused while enablingCC1P -Capture/Compare 1 output Polarity(11: noninverted/both edges) in TIMx_CCER Register(STM32F401RE) .Whether it is possible to change Output Polarity into both Rising/Falling Edges ?

Hello, I have a doubt about the voltage tolerance of STM32H743: looking at Stm32h743bi.pdf, LQFP176 pins are numbered 1,2,...,176, while CubeIDE gives me PA1, PA2, PB1, PB2.... etc.So, how can know if my UART3 pins (PB10 & PB11, Alternate function Push-Pull, No Pull Up - No Pull-Down, Maximum Output Speed Low) are 5V tolerant, to connect my RS232 to RS485 converter?Thanks and best regards

I have an STM32 F401RE (NUCLEO - 64)board. In the document " Description of STM32F4 HAL and low-layer drivers" there are HAL SMBUS Generic drivers. Is it possible to implement SMbus communication using this board or I will have to purchase on of the above mentioned boards.And does it work only for the above mentioned boards or the all the boards of STM32 F0 / F3 / G4 / H7 / L0 / L4 / WB Series ?

Hi every body! I chose STM32H755ZI MCU mainly because it has 1MB of RAM. In my project, I need to at least store 180 KB of Data. 45000 of float samples. I use the M7 Core which accesses the AXI RAM the size of which is 512KB; on the other hand, the Build analyzer shows the amount of RAM around 128KB and in STM32H755ZITX_FLASH.ld file the ram size is defined 128KB. I decided to expand this area based on the memory file were presented in data sheet of the MCU but the program could not even be started and debugged. I got hard-fault error.in STM32H755ZITX_FLASH.ld file the default memory setting was like this: _estack = 0x20020000;  /* end of RAM */                /* _estack = 0x20020000; *//* Generate a link error if heap and stack don't fit into RAM */_Min_Heap_Size = 0x200 ;   /* required amount of heap */      /* _Min_Heap_Size = 0x200 */_Min_

Hi,What is the difference between STM32H753ZIT6 vs STM32H753ZIT6U?I am curious because the U variant is on the eval card, but is not available anywhere. The non-U variant seems to have replaced it from all vendors.

Hi. i am a newbee here. i want to know STM32F411CC has sdio, does it support SDXC ?i need to use more than 32g sdcards. (example 64, 128, 256, 512g)if STM32F411CC only support SD 2.0 (SDHC max capacity 32g), SPI will support access more than 32g ??regards.

Programming manual PM0271, page 4, current features supported on Bluetooth specification v4.1, it is said that it only supports being slave of up to two masters simultaneously.But as for the standard, the maximum connections number would be 8. I'm trying to use "server" and "client" examples, using full stack, but the server can only connect to 2 clients. After this, it can't put server on advertising mode (I'm starting again the advertiser after every connection). Currently I'm using STM32WB v1.11.1 package. I've tried v1.9.0 and v1.10.0 with the same limitation.Is there a way to connect a slave to more masters?

Question #1:In my system, I have 3.3V available, so I was planning to use that for AVDDVCSEL & AVDD since it is within the range but the I2C interface will run at 1.8V.The 1.8V seems fine from a Vih/Vil point of view. My concern is around IOVDD and 2V8 mode. Given the above situation, I cannot tell if I need to use USE_I2C_2V8k or not.In DocID031281 Rev 3, Section 5.2, Table 14 on page 23, it talks about IOVDD - but this isn't a pin. Digging further:Note 4 says:The default driver mode is 1V8.2V8 mode is programmable using device settings loaded by the driver. For more details please refer to the VL53L1X API user manual (UM2356)UM2356 says:2.5.9 VDDIO configurationAs described in the datasheet, the user can select two modes for a VDDIO value of 1V8 or 2V8 modes.The selection of the mode is made directly in the code though a compilation key called USE_I2C_2V8k.If this compilation key is defined, the system will go into 2V8 mode, otherwise, it will be kept in the default 1V8 mode.Ques

Hi !I am unable to find the workspace project in NUCLEO-G071RB with X-NUCLEO-GFX01M1 which is shown in its original demo.Can you please share the location from where I can find this project.Regards,VK Verma

Hello,I'm trying the NAND boot on our STM32MP157AAB3 custom board but until today I could't make the ROM code load the tf-a image from this memory.I'm yet able to boot from uSD (SDMMC1), eMMC (SDMMC2) and serial NOR (QUADSPI). For uSD I partitioned the device as described in wiki, for eMMC the only way I found to make the ROM code able to load the image is programming it via STM32CubeProgrammer (same procedure of uSD won't work), for NOR I wrote it from u-boot with sf commands.Our board is equipped with Winbond W29N08GVSIAA parallel NAND, connected to the FMC default pins as stated in wiki. The NAND datasheet report all the ONFI parameters requested by the ROM code, none of the OTP is blown. I'm building tf-a, u-boot and linux kernel from the ST repos aligned to STM32MP15-ecosystem-v2.1.0 release, the dts are created starting from STM32CubeMX output with USER CODE added according to wiki.When I boot from another device, in u-boot I'm able to detect, write and read the NAND device. Writ

If I order from st, how many days does it usually take to get to Korea?I placed an order last week... it's only for processing.

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Hi there, I am using EVAL6498L to test a boost converter having one switch and one diode. I was wondering if I can use a synchronous rectifier in my boost converter, in other words if it is possible to control both switches (one high side switch and one low side switch), using EVAL6498L.From the schematic I have found in the datasheet of 6498L gate driver, it seems that the 6498L IC is made on-purpose to control a high-side and a low-side switch in the same switching leg.  However, what I am not sure about is the connections on the "From Controller" on the left side of the drawing. In particular, 1) if I provide a PWM from a microcontroller which has one ground reference, connected to SGND, do I need to galvanically isolate the top PWM going to the gate driver? (i.e. does the PWM signal going to HIN need to be galvanically isolated? - that is not referenced to SGND)2) I am a bit confused about SGND and PGND, I understand that these are signal and power ground, where the signal gro

To set the wakeup thershold, I use WAKE_UP_THS and for single-tap I use the same functions as the example (https://github.com/STMicroelectronics/STMems_Standard_C_drivers/blob/master/lis2dw12_STdC/example/lis2dw12_tap_single.c). Morever, I set 0x01100000 in CTRL4_INT1_PAD_CTRL, to enable wakeup and single tap interrupts. And when I do that, the bit SINGLE_TAP in STATUS is never at 1, but when I set 0x01000000, it works.

Hello,I am curious if there is a RFID reader that extends the communication distance for STEVAL-SMARTAG1. If so, could you kindly provide the link and description. Thanks in advance,J.X

I have an application which must send > 100KB/day to an RFID/NFC reader (I'm using the STM25R Disco) - for days and years on end.Looking at the EEPROM spec, it's good for 600k write cycles at 85 °C(That means even at 64Kbit EEPROM, wear leveling would be critical for long life.)The Fast Transfer Mode buffer / mailbox is intriguing (256 Bytes) - it seems perfect for my use case - (mainly polling data) - however I cannot find any information about the type of memory used for this or number of write cycles it supports in the datasheet.So, what type memory is used for this FTM mailbox? How many write cycles can it handle?Thank you very much

Hello,I'm trying to setup the system based on SMT32F407 with ThreadX, and enable the print float option for logging feature. Everything works fine!But when we started stability test, thousands of logs are composed with vsnprintf, but it finally fails in some call, like below shown:I tried to use "-mfloat-abi=soft" or "softtp" instead of "-mfloat-abi=hard", but no improvement at all. And I tried to find the answer from website, but no lucks for this issue.Could anyone give me the opinion to resolve this issue?