About Alexey Vergin

Alexey Vergin · 2019-11-17

What is the analog bandwidth of the stm32 ADCs in the different series?

Alexey Vergin · 2019-11-17

Dear engineers. I want to read an extern parallel ADC directly connected to GPIO ports of stm32 microcontroller and clocked from it. It is necessary to make 1000 readings from the ADC with a maximum speed and write them to stm32 memory. What is the m...

Alexey Vergin · 2019-11-19

What's the problem? Tacting an ADC through a timer. I synchronize the assembler program with a timer so that I can read the ADC when the timer output is 0. At the same time, the previous measurement is guaranteed at the ADC output. And when the timer...

Alexey Vergin · 2019-11-18

>> I'd get an STM32H7, and try to do something with the FMC, QSPI, or maybe MDMA + a high speed timer >>BTW, according to AN4031 the dual port DMA controllers can do a copy in 3 AHB cycles. I couldn't find the MDMA timings, but connected to the AXI >...

Alexey Vergin · 2019-11-18

>> As long as there is a possibility that the ADC puts the data on the bus at the same time (clock edge) when the MCU reads it, data can be corrupted. It can depend on the data pattern, or environmental factors, you can never be sure. (set the wrong ...

Alexey Vergin · 2019-11-18

Thanks. It`s very important information. But I`m afraid that there are some other factors that may limit the maximum frequency. For example, signal capture time. As far as I understand, it must be principally smaller then the signal period

Alexey Vergin · 2019-11-18

Thank you. Definitely for FPGA. But the controller has free pads. And I very want to try to use them.>> maybe if it would turn out to be 2-cycle, I'd add an artificial NOPWhy is that? It would seem that the less the better

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Analog bandwidth of the stm32 ADCs.

The speed of the stm32 GPIO (different series).

Re: The speed of the stm32 GPIO (different series).

Re: The speed of the stm32 GPIO (different series).

Re: The speed of the stm32 GPIO (different series).

Re: Analog bandwidth of the stm32 ADCs.

Re: The speed of the stm32 GPIO (different series).