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Which STM32 ICs have Hardware RS485 Flow Control options built-in (DEAT, DEDT, DEM bits)?

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Senior

The STM32F070RBT has Hardware Flow Control for RS485, with DEAT, DEDT and DEM bits in USART_CR1 and USART_CR3 registers.

How do we identify which series of ICs have these features easily? Is it a particular series or type? The STM32F4 IC we are currently using does not have this option however it is not highlighted as different on the datasheets.

1 ACCEPTED SOLUTION

Accepted Solutions

You'd need to look at this historically - the RS485 features first appeared in 'F0/'F3.

JW

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4 REPLIES 4

You'd need to look at this historically - the RS485 features first appeared in 'F0/'F3.

JW

Uwe Bonnes
Principal II

F1,F2,F4 and L1 were designed before F0/F3

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Senior

Thanks both. Can it be assumed that all F0/F3 UARTs have this feature do you know?

I don't know.

But in general: if it is important, don't "assume", check it, work through the datasheets.