About iguffick2

iguffick2 · 2023-10-09

I'm using an STM32H563. Setup to get ADC captures into a buffer using DMA in circular mode.I have TIM1 triggering an ADC1 conversion of two channels. And a buffer with 16 readings using DMA. The GPDMA is set in Standard Request Mode and Circular enab...

iguffick2 · 2023-10-06

I'm using an STM32H563 and the STM32CubMX for initialisation. I'm trying to use the USART in DMA mode and having trouble with the Tx DMA.I use:HAL_UARTEx_ReceiveToIdle_DMA(&huart10, (uint8_t *) uart10RxDMABuffer, UART10_RX_BUFFER_SIZE);for the receiv...

iguffick2 · 2020-12-24

I'm using SMBus on an STM32F303. The application has the STM32 as host, SMBUS charger and SMBUS battery, the charger and STM32 can act as master.I need to infrequently read from the battery and want to check for IDLE before initiating a transfer.I've...

iguffick2 · 2020-04-28

I'm looking to use the STM32MP1 for a battery powered product.What is the recommended configuration to control external power supplies?Both in startup and shutdown.In the past I've used an external M0 as a power sequencer. Latching the power from a m...

iguffick2 · 2014-10-30

Posted on October 30, 2014 at 10:35Not sure if this is a bug or just a missing feature, but I'll explain what I'm doing!I am using STM32CubeMX version 4.3.0 to configure clocks on an STM32F407IEHx.When setting values in the clock configuration, cloc...

iguffick2 · 2023-10-10

> Haven't used the U5, but on the F4, F7, H7 the parity bit is definitely not part of the bufferI've now done this on the H5 and H7.Both require a 16 bit buffer for the TX and Rx. e.g. uint16_t TxBuffer[256]To send 5 serial characters:On the H7 I'd ...

iguffick2 · 2023-10-10

That's all that it needed. ADC values now populating with DMA and giving callback interrupts.Thank you.

iguffick2 · 2023-10-10

I've found the problem. In my cut down test I happened to use a 4 byte size on the call to HAL_UART_Transmit_DMA and I'm using 8 bit with parity, which requires a 16 bit buffer.The call to HAL_UART_Transmit_DMA requires the size parameter in bytes, e...

iguffick2 · 2023-10-09

Thank you for your suggestions. I made a separate project with just the UART initialisation and test code. Thinking this would be cleaner and more concise to upload as an non-working example.It works fine. In that I can receive, then send using polle...

iguffick2 · 2020-04-29

Hi Patrick,Very helpful, I should be able to figure out the rest from there.Thank you both for your help.Regards,Ian.

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Circular DMA on ADC runs once and stops

USART Tx DMA on STM32H5

How to detect IDLE in SMBUS Multi-master?

How to control external power for a battery powered STM32MP1 product?

Bug in STM32CubeMX - maximum ADC clock

Re: USART Tx DMA on STM32H5

Re: Circular DMA on ADC runs once and stops

Re: USART Tx DMA on STM32H5

Re: USART Tx DMA on STM32H5

Re: How to control external power for a battery powered STM32MP1 product?