About MatthewsEffects

MatthewsEffects · 2024-05-02

Ran into a issue with a fresh blank project, only USB OTG HS turned on. Computer would recognize the usb device but as soon as I would turn any level of optimization on the computer would no longer detect the usb and show it as connected. I was able...

MatthewsEffects · 2024-04-18

This is on a STM32H723ZGT6 Ok for testing i went to a blank project with only the usb turned on. Set asUSB OTG HSDEVICE ONLYHIDUsing the defaults for everything. With no optimization it works and shows up correctly. With any kind of optimization turn...

MatthewsEffects · 2024-04-03

Hello Got a weird issue, to further test I created blank project with no other code to rule out conflict. When I put in HAL_SPI_Receive_IT(&hspi3, SPI_RX_BUF, 2);,According to my logic analyzer, the clk and data pins stay high and dont move. When I ...

MatthewsEffects · 2024-01-27

So I got i2s working great on a stm32f4 based on this videohttps://www.youtube.com/watch?v=lNBrGOk0XzE&list=WL&index=7which has DMA set to circular, half word. and we start the i2s with HAL_I2SEx_TransmitReceive_DMA (&hi2s2, txBuf, rxBuf, 4); 4 being...

MatthewsEffects · 2024-01-22

HelloI've seen tons of posts about this, I'm hoping I'm just missing something simple, I would really love to get this working. STM32H723ZG, DMA TX works, I can send a sine wave fine but the RX buffer never changes and is never filled. I've put the R...

MatthewsEffects · 2024-05-02

I was able to load a HID example with no problems which meant this was a code issue somewhere. Through process of elimination i was able to track down that the only real difference between the projects was 3 lines of code in the usbd_desc.c file. on ...

MatthewsEffects · 2024-01-29

Lets just focus the question. This starts the DMA, size was set to 4 for half word transfer, should it still be 4 for word transfer. That's all I'm trying to find out and how it affects the half and complete functions. HAL_I2SEx_TransmitReceive_DMA (...

MatthewsEffects · 2024-01-28

I don't know what you mean by "don't want to try what you recommended"? In my previous post you thought I was doing too small of buffers but I don't want to do block processing, I want to process each sample in real time with as little latency as pos...

MatthewsEffects · 2024-01-23

If the DMA data width is not set to "Word" (was using "Half-Word" like in my previous working project) then the rx just shows 0's. When switched to word the data populates correctly.

MatthewsEffects · 2024-01-23

ooook really not sure what i did. I created a new project and changed the optimization and its working. I used the "Create from existing .ioc file so it literally is the same thing pretty much. Maybe the optimization got it working idk thank you for ...

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Code Generation - USB OTG HS STM32H723ZGT6

Optimization causes "No open pipes!" STM32H723ZGT6

STM32F401 SPI CLK turns off with DMA

I2S DMA data width question. Word vs half word.

STM32H723ZG DMA I2S - tx works, no RX

Re: Optimization causes "No open pipes!" STM32H723ZGT6

Re: I2S DMA data width question. Word vs half word.

Re: I2S DMA data width question. Word vs half word.

Re: STM32H723ZG DMA I2S - tx works, no RX

Re: STM32H723ZG DMA I2S - tx works, no RX