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Nucleo STM32F401RE에서 SPI DMA를 이용해서 W5500 송수신 성능 개선하기

written by James YS Kim
javakys@gmail.com

WIZnet의 W5500은 최대 80MHz의 SPI Clock까지 지원하기 때문에 고속 SPI 통신이 가능한 MCU를 사용하는 사용자들은 ethernet 통신 성능을 최대로 내기를 원한다. 339 more words

Technical Tips

Hot Dogs at the DMA

Hot dog – tomorrow is National Dog Day! What better way to celebrate man’s best friend than to have an entire day devoted to our canine companions? 524 more words

Dallas Museum Of Art

Friday Photos: Superheroes!

Firefighters, doctors, policemen – heroes are all around us…even in art! In the August Arturo’s Art & Me class, visitors met some of the heroes of the DMA, including… 78 more words

Art & Teaching

STM32F2xx 또는 STM32F4xx에서 SPI DMA를 통해 Full duplex 통신 구현하기

written by James YS Kim
javakys@gmail.com

STM32 MCU를 가지고 표준 SPI 통신을 할 때 충분한 성능이 나오지 않는 문제가 있는데, 이것은 SPI read/write 사이에 너무 긴 idle time이 존재하기 때문이다. 1,101 more words

Technical Tips

Contemplation

“Life is an experimental journey undertaken involuntarily. It is a journey of the spirit through the material world and, since it is the spirit that travels, it is the spirit that is experienced.

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Dallas

Of Jewelry and Jazz

On Friday night we celebrated the exhibition From the Village to Vogue: The Modernist Jewelry of Art Smith with a night of performances, talks, art making, and more inspired by Art Smith during the busiest August  124 more words

Dallas Museum Of Art