Search found 7 matches

by cpu20
Thu Jun 15, 2017 8:11 pm
Forum: User Projects
Topic: m25q STM32F746-DISCO example project (QSPI-N25Q128)
Replies: 0
Views: 1158

m25q STM32F746-DISCO example project (QSPI-N25Q128)

Hello, I have taken the QSPI-N25Q128 example project from the STM32L4xx and changed it so it works for the STM32F746-DISCO platform. For now the pins are set manually in the main file, but I also attached a changed board.h file for the STM32F746-DISCO. If that board file is used then the pin configu...
by cpu20
Thu Jun 15, 2017 8:08 pm
Forum: Bug Reports
Topic: Cortex-M7 m25q-driver cache coherency Topic is solved
Replies: 3
Views: 1416

Cortex-M7 m25q-driver cache coherency Topic is solved

Hello again, Here I am with another cache coherency problem on the M7-platform. The m25q-driver in the ChibiOS trunk utilizes QSPI. The problem is that DMA is used for the transfer and of course on the M7-platform the cache coherency problem pops up again :roll: . The mayor problem I had was: - The ...
by cpu20
Tue May 30, 2017 6:40 pm
Forum: Bug Reports
Topic: STM32F746-DISCO FMC/LTDC pin configurations Topic is solved
Replies: 3
Views: 1719

Re: STM32F746-DISCO FMC/LTDC pin configurations Topic is solved

That is very good news!
Thanks for committing the fix!
by cpu20
Tue May 23, 2017 8:46 pm
Forum: Bug Reports
Topic: Cortex-M7 platform FatFS Cache coherency Topic is solved
Replies: 2
Views: 1398

Cortex-M7 platform FatFS Cache coherency Topic is solved

Hello, - So after running into problems with the M7 cache coherency and my SPI driver ( thanks to Giovanni for helping me with that!) I also found that the same problems occur when using the FatFS libary on the M7-platform. - Currently I am using ChibiOS_16.1.8 - Compiled with gcc-arm-none-eabi-5_4-...
by cpu20
Mon May 22, 2017 2:26 pm
Forum: STM32 Support
Topic: STM32F746-DISCO heap problems Topic is solved
Replies: 3
Views: 1343

Re: STM32F746-DISCO heap problems Topic is solved

That is exactly what was happening! Quickly tested the buffer flushing and invalidation and that works perfectly.
I did not know cache coherency was a problem on the F7 platform. Good to know!

Thanks a lot for the help!
by cpu20
Mon May 22, 2017 12:27 pm
Forum: STM32 Support
Topic: STM32F746-DISCO heap problems Topic is solved
Replies: 3
Views: 1343

STM32F746-DISCO heap problems Topic is solved

Hello, I am developing an application an the STM32F746-discovery board with ChibiOS. Now I am having trouble with the heap memory. When setting the CH_CFG_MEMCORE_SIZE to zero to let ChibiOS manage all the available RAM, the '__heap_base__' is set to 0x2001 0080 and '__heap_end__' is set to 0x2005 0...
by cpu20
Fri Apr 28, 2017 5:10 pm
Forum: Bug Reports
Topic: STM32F746-DISCO FMC/LTDC pin configurations Topic is solved
Replies: 3
Views: 1719

STM32F746-DISCO FMC/LTDC pin configurations Topic is solved

Hello, - I have been debugging the problems that occurred while using uGFX together with ChibiOS on the STM32F746-DISCO platform. After allot of searching I have come to the conclusion that the problem is located in the pin configurations. Two pins are configured differently than expected. - This is...

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