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Understanding the difference between USART and SPI controllers

Question asked by Audun Knudsrod on Apr 28, 2016
Latest reply on Apr 30, 2016 by wolff.roger
Hi, we are surveying microcontrollers for a new product where we need at least 2 SPI interfaces and 2 uart interfaces. All of these 4 interfaces will have to be able to operate concurrently.

I have some trouble understanding if e.g. the STM32F401VB will suffice. It is listed with 4 SPI interfaces and 3 USART interfaces. Are all of these actually independent serial bus controllers, or are some of these the same?

In short: Requiring communication on 2 UART lines and 2 SPI lines, all in concurrency, will the STM32F401(VB) meet my demands?

//Audun Knudsrod

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