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Resolved! Reference Manual no TXE in SPIx_CR2 Register?

HiIn your Reference Manual for the STM32F469 at 31.3.11 it says:A DMA access is requested when the TXE or RXNE enable bit in the SPIx_CR2 register is set.But the SPIx_CR2 Register does not have a TXE/RXNE bit, it has a TXEIE/RXNEIE bit which just en-...

PGroe.2 by Associate III
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  • 2 replies
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How to generate interrupt of exact 1us in STM32F746ZG?

I have created a simple project, where I need to get the interrupt at exactly 1us.Please find attached an image of the clock configurations that were created in STM32Cub3MX.I am using TIM3 which is associated with APB1, so the MAX frequency for this ...

0693W000006H8xOQAS.jpg
GPati.3 by Associate II
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  • 5 replies
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64-bit timer in STM32L4S5ZI

Hi,I am using STM32L4S5ZI which has only a timer with maximum capacity of 32-bit. The DWT(Data Watchpoint Trigger) is somehow not available because when I check for DWT->CNT it always shows 0. So I needed a 64-bit timer for my application which keeps...

SJant.1 by Associate III
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  • 4 replies
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Resolved! STM32H7 LPUART Stays at RX Interrupt Constantly

Hello everyone;I'm working LUPART with STM32H747. I have a problem like this;- LPUART 1000000 baudRate has been installed. LSE clock is not used.There is no problem when the LPUART's RX-TX line is physically connected to the module. But when I physic...

Resolved! STM32F469I-DISCO FMC WRITE_READ_ADDR 0x0800

HiI just wonder at the example:STM32Cube_FW_F4_V1.26.0/Projects/STM32469I-Discovery/Examples/FMC/FMC_SDRAM/Src/main.cand there is a define:#define WRITE_READ_ADDR ((uint32_t)0x0800)Whats the purpose of that (offset?)? Doesn't the FMC SDRAM start ...

PGroe.2 by Associate III
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  • 2 replies
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Need help running STM32F4 from internal RAM

Hi Experts,I need to run my code (it is a small code) from internal RAM. It currently runs from the first sector in the flash. For some reason, I need to change a few bytes in the same sector and it seems I can't write to the same sector from where t...

RBharol by Associate III
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Long Press on flexButton

Hi all,I'm trying to manage a long pression on a Flex button.I want realize this simple algorithm:short pression = action_1()long pression(IE 2secons) = action_2()I enabled clickListener over this Flex button, I configured the trigger event on "Touch...

MPast.1 by Senior II
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