About Digimorf

Digimorf · 2020-10-27

Hello to all, I hope you and your families are safe and sound. I am working to improve my project based on the STM32F469 MCU, but now I am experiencing a weird behavior. I can't post the code of course, too many files connected, so I will try to expl...

Digimorf · 2020-09-03

Hello, I need to understand if it's possible to use both USB HID keyboard and mouse in a project powered by a STM32F469. I have thought about plug a mini HUB and connect both keyboard and mouse. Is there something I can start from? I have searched a ...

Digimorf · 2018-06-27

Posted on June 27, 2018 at 23:15Hello,I am developing a custom board that mounts a STM32F469 MCU. The board is very simple, and the circuit embeds only the main 8Mhz crystal and the RTC 32.768 one. No embedded peripherals except for a couple of stat...

Digimorf · 2017-09-27

Posted on September 28, 2017 at 00:36Hello,I am trying to solve this problem. I am using FATFS13 on my custom STM32F469 board and I am using the Standard Peripheral library.I have connected 1MB of SRAM over the FMC bus, and an SD card over the SPI b...

Digimorf · 2017-08-02

Posted on August 02, 2017 at 22:17Hello, I have a question about the first time programming of the STM32F469 (and probably other chips of the same family). I am designing a 469 powered board and I just built one prototype. I was able to connect the ...

Digimorf · 2020-11-04

After a long research on Internet I bumped into this Errata for STM32F407.See 2.1.10 page 15 of this PDF:https://www.st.com/resource/en/errata_sheet/dm00037591-stm32f405-407xx-and-stm32f415-417xx-device-limitations-stmicroelectronics.pdfMaybe my case...

Digimorf · 2020-11-03

/* VGA DRIVER DMA2D and DMA2 transfer ---------------------------------------------------------- SRAM1 160K, 0x20000000 - 0x20027FFF GPIOB AHB1 line_buffer_show @0x20001900 --------> @0x40020414 line_buffer_render @0x20...

Digimorf · 2020-10-29

VGA DMA: SRAM to GPIOB AHB1, TIM8 driven: if (LL_AHB1_GRP1_IsEnabledClock (LL_AHB1_GRP1_PERIPH_DMA2) == DISABLE) LL_AHB1_GRP1_EnableClock (LL_AHB1_GRP1_PERIPH_DMA2); LL_DMA_StructInit (&DMA_InitStruct); DMA_InitStruct.Channel = LL_DMA_CHA...

Digimorf · 2020-10-29

Thank you for the suggestion, I have set up the interrupts on errors for the three streams, and the DMA2Stream1 only reports a TE when one of the others starts. It's weird because the three streams has to transfer 320 uint16 words a time, so there is...

Digimorf · 2020-10-04

That is true but the USB port in the ArcadeIT would be used mainly for the keyboard and eventually a mouse. There is the support of a SD card upto 32GB, so no need of a pendrive. A parallel 6 buttons gamepad is provided, so the HUB is not really need...

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Apparently a conflict when clearing TC flags of DMA2 Streams

Is it possible to use USB HID keyboard and mouse at the same time on a STM32F469?

Custom STM32F469 board with Standard Peripheral Library 1.8.0: Clock wrong after power up, correct after several resets

Problems with FATFS and copy between Ramdisk(FMC) and SD(SPI) on STM32F4

Stm32f469 read protection L1 factory settings?

Re: Apparently a conflict when clearing TC flags of DMA2 Streams

Re: Apparently a conflict when clearing TC flags of DMA2 Streams

Re: Apparently a conflict when clearing TC flags of DMA2 Streams

Re: Apparently a conflict when clearing TC flags of DMA2 Streams

Re: Is it possible to use USB HID keyboard and mouse at the same time on a STM32F469?