STM32F446RE
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‎2017-01-19 09:02 PM
Hi Guys,
I am working on a project based on
STM32F446RE and we need to interface external SDRAM(16bit) with STM32. Can anybody help me with interface of SDRAM with STM32.
Regards,
Muhsin Ali
#stm32f446re #sdramSolved! Go to Solution.
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STM32F4 Series
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‎2017-01-23 03:13 AM
Hi
Ali.Muhsin
,Just now, from the datasheet it seems to found STM32F446M and
STM32F446R don'tsupport FMC memory controller.
In fact yes! I already said that
FMCcontroller isavailable only forUFBGA144 andLQFP144 packages:
-Nesrine-
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‎2017-01-20 02:38 AM
Hi
muhsinali009
,- I recommend you to have a look to FMC examples under the STM32F4 package to have idea how to configure the FMC controller to access the SDRAM memory: STM32Cube_FW_F4_V1.0\Projects\STM32446E_EVAL\Examples\FMC
- Also have a look to the user manual page 51 about SDRAMElectrical schematic.
-Nesrine-
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‎2017-01-23 12:26 AM
Hi
ELMHIRI.Syrine
,The document you provided was useful, but we are using WLCSP81 package(
http://www.digikey.com/product-detail/en/stmicroelectronics/STM32F446MEY6TR/497-15812-2-ND/5287184
). It seems some of the interfacing pins are not available for this package(ex:- FMC_A0 to FMC_A11). Do we have alternate pins for this or do we need to use UFBGA144(http://www.digikey.com/product-detail/en/stmicroelectronics/STM32F446ZEH6/497-15814-ND/5287173
) package.Regards,
Muhsin Ali
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‎2017-01-23 01:59 AM
Hi
Ali.Muhsin
,FMCAlternate functions are available forUFBGA144 andLQFP144 packages,please refer toSTM32F446xx pin and ball descriptions table in your datasheet for further details.
-Nesrine-
Ifmy suggestanswers your question, please mark it as correct.
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‎2017-01-23 02:37 AM
Hi
ELMHIRI.Syrine
,Just now, from the datasheet it seems to found STM32F446M and
STM32F446R don'tsupport FMC memory controller.
Regards,
Muhsin
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‎2017-01-23 02:41 AM
Nesrine,
I went to the
http://www.st.com/en/microcontrollers/stm32f446re.html
and it says- Flexible external memory controller with up to 16-bit data bus: SRAM,PSRAM,SDRAM/LPSDR SDRAM, Flash NOR/NAND memories
I also opened the datasheet, DocID027107 Rev 6, and in 3.9 Flexible memory controller (FMC) it says:
All devices embed an FMC
JW
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‎2017-01-23 03:13 AM
Hi
Ali.Muhsin
,Just now, from the datasheet it seems to found STM32F446M and
STM32F446R don'tsupport FMC memory controller.
In fact yes! I already said that
FMCcontroller isavailable only forUFBGA144 andLQFP144 packages:
-Nesrine-
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‎2017-01-23 03:20 AM
Hi
Waclawek.Jan
,This documentation issue has been reported internally for review.
Thank you very much for your contribution to the enhancement of our STM32 resources.
-Nesrine-
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‎2017-01-23 03:42 AM
Hi
ELMHIRI.Syrine
,Thanks for your support
Regards,
Muhsin Ali
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‎2017-01-23 04:02 AM
Hi
Waclawek.Jan
,In the datasheet page no:-13 it is mentioned that
UFBGA144(
STM32F446Z
) andLQFP144(STM32F446V)
packages only support FMC, but i dnt know why it mentions all device have embed FMC.Regards,
Muhsin Ali
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