four uarts on stm32L433?

[John Griswold]

Posted on September 05, 2017 at 22:05

Is it possible to get four USART/UART devices at once on the STM32L433 in a 64-pin package? I need one UART for input, one for output, one for external logging, and USART1 for debugging.

Is this doable? I've used CubeMX to try various configurations, and I end up short of the goal. I'll also need an ADC and a PWM or DAC, and DMA on at least the input device would be nice.

Suggestions?

[John Griswold]

Posted on September 07, 2017 at 16:10

I've managed to get two UARTs to work - USART1 & LPUART (@921600!), so my short-term goal (the 'low bar') can be satisfied.

Thanks for making me think a bit more than usual.