FAQs
Martijn Jasperse
Associate II
since ‎2018-07-20
‎2023-06-14

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  • 12 Posts
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User Activity

Max DCMI pixel clock on H7?

2018-12-16
Hi all,I'm planning to interface a DCMI camera with an STM32H743 running at 400MHz SYSCLK. What is the greatest pixel clock rate I can reliably use? The reference manual says "The maximum DCMI_PIXCLK period must be higher than 2.5 HCLK periods". Sinc...

Very slow GPIO on STM32H743?

2018-06-19
Posted on June 19, 2018 at 09:07Hi all,I've started playing around with the NUCLEO-H743ZI to try out the H7 series and I've noticed that toggling GPIO output with BSRR is very slow. I've used CUBE to configure the board for a 400MHz SYSCLK and my ma...

Fastest IRQ response on STM32F04?

2018-03-09
Posted on March 10, 2018 at 06:36Hi all,I'm trying to respond to an IRQ in the fastest way possible on an STM32F04. Configuring a GPIO as EXTI works, but there's a ~200ns delay even at highest priority, presumably due to the overhead of the IRQ and ...
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