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Receiving a burts of data from SPI using DMA

Hi, I am using an STM32f407VGT MCU and I am trying to receive a burst of data of 112 bytes from SPI1 and storing it in an array buffer, initially set with all its elements to 0.According to the RM0090 TRF this should be easily done with the DMA, but ...

simo zz by Senior
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  • 12 replies
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Linker Error: "no definition for __write".....

Hey everyone, I am using IAR and a STM32F401RE.When I am setting the library low-level interface implementation to "None", I get the following linker error:Error[Li005]: no definition for "__write" [referenced from fflush.o(dl7M_tlf.a)]Error[Li005]: ...

JCorn.2 by Associate II
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  • 2 replies
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Resolved! I have a question about using flash memory.

HI Sir.I will try to work on a project using STM32.I have a question regarding flash memory usage.I want to  save input data to flash memory but STM flash memory is divided sector.The capacity of each sector is determined.ex) STM32F205VE Sector 0 : 1...

User.72 by Associate II
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  • 2 replies
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H743vit SDMMC2 not working

hii want to have both SDMMC 1 and 2 i test my project for SDMMC1 in 4bit sdio at 44MHz and no clock Div its work good singlebut when i set SDMMC2 single with that not worki change setting reduce frequency , use clock div , software pull up pins but ...

stive by Associate II
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  • 14 replies
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STM32 F303RE Nucleo: No device found on target error

I get the errorError in final launch sequence:Error in initializing ST-LINK device.Reason: (4) No device found on target.I have the STM32 F303 RE nucleo connected over USB and am trying to download and run code through STM32Cube IDE. Code compiles fi...

CLee.0 by Associate III
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  • 6 replies
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How to correctly set up a micro second timer?

Hi there.I know this question is already asked, but the topics I've read didn't worked for me, so I'm writing this in order to study mi concretely case.I'm setting up my timer using TIM1 with the next parameters://Prescaler for 1 us uint32_t Presca...

areify by Associate II
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  • 19 replies
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Resolved! STM32L433 Flash memory erase

Hello!I made a mistake in my software and download it in MCU's flash memory. This mistake prevents me for downloading again. So i want to know is there any way to erase MCU's flash memory or something else...I am using NUCLEO-L476RG board with SMT32L...

ASmit.19 by Associate II
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  • 3 replies
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Setting TIMER as 16MHz [STM32]

Hello,I want to get timer frequency between 16MHz to 20MHz. So I picked the TIM4 and set it with internal clock. Based on the datasheet (STM32F767), the timer belongs to APB1 bus. When I set the main clock frequency as 216Mhz, I expect to get 108MHz ...

AE104 by Senior
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  • 2 replies
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Writing but not showing pen drive in my computer

Hello i am using STM32F779BI controller in my project I have made code for pendrive to write some data in pen drive , and it works perfactlybut i want to show that pendrive as drive in my computer as normally we see while attching with cpu of comput...