Interface two STM32F uC via FMSC

[mazielvc]

Posted on October 21, 2016 at 04:34

Is possible to interface two STM32's one F7 and one F4 via the Flexible Memory Controller?

Thanks for the help. #stm32f4 #fmc #fmsc

[markus239955_stm1_stmicro_com]

Posted on October 21, 2016 at 21:03

You can use dual port sram to interface 2 STM32 to each other. Split the memory into two areas software wise with RO / WO for each uC and you are done. But be aware that dual port sram is expensive and often used in FPGA systems to interface the FPGA to an uC.

[Tesla DeLorean]

Posted on October 21, 2016 at 21:20

FIFO type buffering?

http://www.averlogic.com/AL422B.asp

You might be able to use FSMC to DCMI, or a GPIO/DMA arrangementCan't go directly FSMC-to-FSMC as there is no good way of initiating a transfer on the receiving end, hence the DualRAM suggestion, or an FPGA mitigating interaction, and IRQ's etc.

[mazielvc]

Posted on October 22, 2016 at 23:53

Thanks for the answer.

I was trying to avoid Dual Port RAM for a cheap prototype, I think I'll try Quad-SPI better