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Hello,I'm encountering an issue where the printf function is providing an incorrect output for float or double values. The simplified code snippet causing this problem is as follows:float f = 0.33; printf("d:%4.2f;\r\n", f);Upon analyzing the output ...
I want to use a bidirectional current sense such as ina181 and read the values into stm32g0 Mcu.This does not need to be super accurate (max current is +/- 500mA and just want an idea of if approaching that) but I am struggling to find a canonical ci...
Dear Sirs,I want to edit a string, but the system goes to hard fault (bus fault Imprecise error).Here below the code:typedef struct CC_PACKED{...const char *name;...} _objd;static const char acName2005_19[] = "Cycle 0 delta stop";const _objd SDO2005[...
Hi the community,I tried to use a STM32L552 to create file in a USB key with FatFS but without success.I already create and write file in SD card with FatFS but my aim (after a USB key) is to do it on an external hard drive (so througth USB, the capa...
Hello I am trying to do spi_dma communication using the HAL_SPI_TransmitReceive_DMA function.When I use HAL_SPI_TransmitReceive_DMA in a situation where I use the same dma stream, same amount of data to send and receive, but different addresses to se...
Hello I looking to do Classic CAN communication (Not FD) Between NUCLEO-H7A3ZI-Q and NUCLEO-F429ZI in normal mode. I am using MCP2551 transceiver on both boards. I added termination resistors on both side But i didn't Receive the message. My confi...
Hi everybody.I ran into a problem with my project.As you can see in the picture, after uploading the program to uP, the content of Flash is different from the uploaded Intel hex file.Can someone explain to me why?Where did the data F8 B5 00 BF F8 BC ...
Hi everyonei have connected ethernet to stm32f4vet6 mcu. i am using LWIP and tcp_echoserver provided by stm and tftp server also provided by stm.Now i am facing with an issue , i have two programs , first of them is LWIP_TFTP_BOOT, which has start fl...
Hi all,I used long time STM32F103 and there was the possibilty to release the CAN Fifo by writing CAN_RF0R, resp. CAN_RF1R register. For G474 I didn't find this possibilty. Has someone any idea how to release the receive buffer or is the only option ...
How to get ST official sales or technicalsupport in China? I try to find ST official sales，but nobody answser the Telephone number. https://www.st.com/content/st_com/en/contact-us.html
