STM32F427 + AS6C6416 (SRAM 8Mb) instead IS61WV102416ALL which max frequency I can get for core?

[Yurii Stukalo]

Posted on June 25, 2018 at 13:20

I have replaced SRAM  AS6C6416-55BIN (8 Mb, 55 nSec) 

https://www.alliancememory.com/wp-content/uploads/pdf/20171116_AllianceMemory_64M_AS6C6416-55BIN_v1.0_June2017.pdf

 

instead IS61WV102416ALL (2 Mb, 10 nSec)

http://www.issi.com/WW/pdf/61WV102416ALL.pdf

 

as I need more memory, but I can get working the

 AS6C6416-55BIN  

memory only for HCLK clock 60 Mhz, 

IS61WV102416ALL - worked for HCLK clock with 168 Mhz, s

ettings timings for both memory:

Timing.AddressSetupTime = 15;

Timing.AddressHoldTime = 15; Timing.DataSetupTime = 255; Timing.BusTurnAroundDuration = 15; Timing.CLKDivision = 16; Timing.DataLatency = 17;

How I can get 

HCLK clock 168 Mhz for  SRAM AS6C6416-55BIN? Is it possible ? 

Thanks.

#stm32f4 #sram

[Yurii Stukalo]

Posted on June 25, 2018 at 13:58

I fixed it, my timings was wrong, with  the paramters it's working

Timing.AddressSetupTime = 15;

Timing.AddressHoldTime = 15;

Timing.DataSetupTime = 255;

Timing.BusTurnAroundDuration = 15;

Timing.CLKDivision = 16;

Timing.DataLatency = 17;