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STM32F103VG FSMC/LCD

a239955_st
Associate
Posted on December 17, 2013 at 19:27

Dear Sirs

I developed a system with a STM32F103VG  processor.

The processor is connected to an LCD with Intel 8080 interface.

I use FSMC to configure and manage the LCD.

The processor is configured to run at 72MHz.

The DMA operation to the LCD isn't fast as I aspected.

A write cycle is 4us long! I'm not able to reduce this time.

I changed the AHB clock prescaler to reduce the FSMCCLK to 36Mhz. In this way the write cycle is 8us long!!

I don't understand where is the mistake.

Could you be so kind as to help me?!

Thank you in advance

Best Regards

Andrea Sorio

#fsmc
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