About PRedd.5

PRedd.5 · 2019-12-19

I see that the PLL's can be set to much higher clock than 72MHz rating. What will be the impact of overclocking it to say 100MHz or 144MHz ? What kind of impact are we looking at? I need more clock cycles per second for processing but i also need a 5...

PRedd.5 · 2019-10-15

In DMA mode, the DMA block does copying. In normal mode the controller does the copying. So which block does copy in interrupt mode?

PRedd.5 · 2019-10-15

I am currently working with UART in DMA mode for CLI implimentation. I would like to do some string parsing as part of the HAL_UART_RxCpltCallback.Is this callback running in IRQ context or outside of IRQ context ? Is this the correct place for post...

PRedd.5 · 2019-10-15

It becomes much clearer once you look up the implementation of :HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_...

PRedd.5 · 2019-10-15

"Do they just skip computer architecture completely these days ?" : Uncalled for. The computer architecture they taught 12 years ago is far behind modern DMA and bus controller implementations. These DMA's are far more capable than what my course eve...

PRedd.5 · 2019-10-15

So the bus controller is the one doing the transfers instead of DMA. If the controller can do full size transfers , why is DMA used at all ?When would you choose DMA over controller interrupt ?

PRedd.5 · 2019-10-15

the processing is basically string compares to about 2 dozen commands and tokenizing command and arguement.

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How far can I use the PLL's to overclock the STM32F303CC from 72MHz before adverse impact?

How is IT different from DMA at a hardware level ?

Is the HAL IRQ callback function running outside of irq context ? Is this a good place for some string processing ?

Re: How is IT different from DMA at a hardware level ?

Re: How is IT different from DMA at a hardware level ?

Re: How is IT different from DMA at a hardware level ?

Re: Is the HAL IRQ callback function running outside of irq context ? Is this a good place for some string processing ?