Nov 25, 2018
08:05 PM
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Nov 25, 2018
08:05 PM
Hi,
We are using LPC4088 based custom board interfacing external nor-flash(SST39vf3201), SRAM(CY62157EV30LL) & FPGA on static memory CS3, CS1, CS0 respectively. We are using Nor-flash for code storage & execution. A custom USB bootloader is stored in internal flash & execution jumps from internal to external flash.
SRAM is used mainly for LCD buffers & LCD has dedicated DMA which reads bmps from SRAM & load into LCD display. The problem is that when I initialize SRAM according to its wait states given in the data sheet, the actual wait states I get is double of what I set. I did not understand this. Due to this it is slow and also affect the code execution.
Anyone aware of this problem. Please help.
Regards
Chaitanya.
Labels
- Labels:
-
ASYNC
-
Fast ASYNC
7 Replies