flexbus for sram and 16bit 8080 lcd

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flexbus for sram and 16bit 8080 lcd

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rqbh
Contributor III

Hi everyone :

I'm using a k22fn1m0vll12 for a hmi porject, and want use the flexbus connect a 8bit #sram for framebuffer and 16bit 8080bus lcd,

is there any problem in hardware connection ?

MEMANDLCD.JPG

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xiangjun_rong
NXP TechSupport
NXP TechSupport

Hi,

I have checked the part of schematics, I think the SRAM circuit is okay. But for the LCD part, I do not know why you do not use the FB_OE and FB_R/W signals to access the LCD the same as the interface of SRAM?

For LCD interface, it seems that this is a FIFO model, it only need OE, CS, WE and data bus, there is not address signals, right? if it is the case, i think your schematics is okay, otherwise, latch is required to latch the low address.

Hope it can help you.

BR

Xiangjun Rong

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