About C.East2

C.East2 · 2022-06-23

Once again I'm struggling to find a clear source for a peripherals clock with STM32 MCU's.Most searching leads me to HCLK/2, so at a max HCLK of 180MHz I get 90MHz.However, looking at there reference manual for the STMF469 I see this:From an example ...

C.East2 · 2022-05-24

I've followed some answers from a post here:https://stackoverflow.com/questions/57283327/how-to-change-the-uart-baud-rate-after-running-on-stm32-boardBut still can't seem to get the baud rate to change. Has anyone had any luck trying to dynamically c...

C.East2 · 2022-04-05

I have multiple channels that I am trying to read from. I want to try both DMA and Interrupt mode.Does the callback follow the EOC flag, and therefore follow the 'End of Conversion Selection' setting in Cube (to which I have set to 'at the end of sin...

C.East2 · 2022-01-20

I'm using a custom board with an STM32F469, a display with an ILI9488 320X480, and a frame buffer of 1X480. This frame buffer should fill a line of data.When I send the packet using a DSI Long write, only part of the line is filled up with the data I...

C.East2 · 2021-12-07

The image shows my clock configuration for the STM32F469IIT. I want a 12MHz output from MCO2 and I found that I could theoretically achieve this using the PLLI2SCLK input. However, when I use this configuration, the device is not recognised by the PC...

C.East2 · 2022-06-23

I get it doesn't prescale the HCLK for the whole peripheral, but certainly it scales the HCLK down to the SDCLK. Either way having the parameters in terms of 'HCLK Cycles' seems a wrong way of defining an output clock, would you agree?

C.East2 · 2022-06-23

Correct. I've found the divider in question, which CubeMX calls 'SDRAM common clock' which seems obvious but the parameter is of type 'HCLK clock cycles' where there selectable options are '2/3 HCLK clock cyles' when it's really a prescaler. This rea...

C.East2 · 2022-05-30

Here is a follow up and answer to the problem.The issue was that The UART was part way through a interrupt transmission while I was changing the Baud rate. Having a static variable that keeps track of a message being sent has solved this issue.

C.East2 · 2022-05-24

I'm less worried about the instance where i've deinitialised it (though I do understand it may be part of the problem) but more confused as to how I would properly go about changing the Baud rate dynamically. Are you suggesting that I HAVE done it co...

C.East2 · 2022-05-24

Sorry about that.It doesn't hard fault. I'm not sure if it's in a loop somewhere. It's not in syscalls.

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What is the Clock Speed of the SDRAM FMC on the STM32F469?

How do I change the Baud rate of a UART/USART whilst running?

When is HAL_ADC_ConvCpltCallback called in both DMA and Interrupt modes?

DSI Long write stops sending data.

USB not working when MCO2 enabled and driven by PLLI2SCLK

Re: What is the Clock Speed of the SDRAM FMC on the STM32F469?

Re: What is the Clock Speed of the SDRAM FMC on the STM32F469?

Re: How do I change the Baud rate of a UART/USART whilst running?

Re: How do I change the Baud rate of a UART/USART whilst running?

Re: How do I change the Baud rate of a UART/USART whilst running?