[En-Nut-Discussion] Re STM32F756
bon at elektron.ikp.physik.tu-darmstadt.de
Fri Apr 8 17:03:10 CEST 2016
>>>>> "Holger" == Holger Mai <mai at gemac.info> writes:
Holger> Hello Uwe
Holger> thank for your reply
Holger> first the < Architecture-> CM3 -> STM32 Family -> STM32 Clock
Holger> and system settings -> Instruction prefetch/Unified flash
Holger> acceleration buffer > doesnt exist in my configurator. the
Holger> Version is 3.1.0, all files who are not in the repository
Holger> snapshot present, were copied from an 5.2.4
Holger> installaion. Snapshot is from march 14., 2016. Wrong scripts for
Holger> the configurator, or snapshot too old?
Snapshot too old! March 15 saw about 70 patches, mostly for consolidating
STM32 system setup. Either check cache settings by hand or try SVN head. But
cache consistancy problems is only an (educated) guess.
Holger> lookink to disable the caching from the app. However, in the
Holger> app is my SD-Card driver as fileinterface used (adapted from the
Holger> STM32F4 version (bitbanding removed a.o.)), who uses the
Holger> SDIO/SDMMC Peripheral an DMA, this works fine without any
Holger> problems or read errors. It is used to set the network
Holger> configuration (Names, IP, MAC, timeservers etc.) from Ini-Files
Holger> on the SD-Card, and for website content. No errors in this way
Holger> are occured.
Probably SDIO doesn't use DMA. You probably use the out-of-tree SDIO driver
you offered several times to the list, last time to Ole. This driver needs
the ST special license. Ole has talked about a rewrite, but I didn't hear
I will try to read SD Card with DMA SPI driver on F7-Disco. Perhaps I can
reproduce the problem.
Holger> For own use, i wrote an istruction to setup a NutOS application
Holger> project in the STM32 System Workbench, and (previously) in
Holger> CooCox (but Coocox is dead, no more support, no new MCUs, ...).
Holger> When the actual problems are fixed, then i will translate this
Holger> to english and publish it. Note that the system Workbench is
Holger> Eclipse, extended with STM32 specific plugins, a good debugging
Holger> tool, and a makefile generator. I spend some time to figure out,
Holger> how it has to be configured to use it for an NutOS App project
Holger> for an easy way to work with it.
Writing Instructions sounds good. Maybe you can exclude F7 and publish
earlier? And as system Workbench is available for Linux and Mac too, please
weed out usage of backslash versus slash in filenames :-)
Uwe Bonnes bon at elektron.ikp.physik.tu-darmstadt.de
Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
--------- Tel. 06151 1623569 ------- Fax. 06151 1623305 ---------
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