2024-05-26 11:47 PM
Dear All,
My customer using STM32F205ZG and I have the following issue.
I am accessing dual port memory using FSMC function, but when I measured the waveform, I found that CE(CS) did not increase due to BUSY(WAIT). See picture below.
setting value : "AddressSetupTime" and "AddressHoldTime" values = "0".
Q:
1. What is the minimum value for setting "AddressSetupTime" and "AddressHoldTime"? Can I use "0"?
2. If I use "0", may the CE not increase depending on BUSY?
(When I used "1", it worked fine.)
3. When I set "0" to STM32F205ZF using the same FW, there was no problem, but I was wondering if there is a reason why the problem is occurring in "205ZG" MCU.
waveform picture :
Best Regards.
Ray shin.