STM32F411 - What is ''Batch Acquisition Mode''?

[waclawek.jan]

Posted on December 08, 2014 at 14:18

''Batch Acquisition Mode'' mentioned for the new STM32F411:

http://www.st.com/web/en/press/en/p3580 http://www.st.com/web/en/catalog/mmc/FM141/SC1169/SS1577/LN1877 OK I understand the marketing droids need to buzz. But I assumed there must be something behind it. Downloaded RM0383, and there's not a single mention of ''batch'' there. Anybody knows more? Thanks, JW #batch-acquisition #stm32f411 #batch-acquisition-mode

[Uwe Bonnes]

Posted on January 10, 2015 at 13:18

It's finaly there:

http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00121312.pdf?s_searchtype=keyword

[waclawek.jan]

Posted on January 11, 2015 at 09:34

Thanks, Uwe.

OK, So if I understand correctly, this *is* only a marketing buzz. The only thing of some merit mentioned there is ''the Flash memory [can be] switched off by setting the FMSSR and FISSR bits in PWR_CR register'', and that this yielded some 260uA reduction in current consumption. This in itself may be an interesting feature, but IMO does not deserve an obscure TLA ;) The 'F2x/'F43x have an ''underdrive'' option for Sleep, see UDEN bits in PWR_CR - anybody can tell what is its exact mechanism and resulting effect? Thanks, Jan