- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi All,
Just to let you all know that there is a design fault on Cyclone IV GX Dev Kit (DK-DEV-4CGX150N) which can potentially stop the LCD display from working. The LCD is a 2.5V tolerant part but unfortunately, LCD_Data[4] is connected to a 1.8V pin. This means that on my board at least, the LCD doesn't reliably work. The schematic for the board is also incorrect. It show LCD_Data[4] being connected to pin C27 (correct) and that C27 is part of bank 6 (incorrect). C27 is in fact part of bank 7. (As bank 6 is 2.5V and bank 7 is 1.8V you see how the LCD_Data[4] fault occurred). Altera have acknowledged the schematic error and have sort of vaguely acknowledged the design fault. There is no sign of an errata on the dev kit page though. Cheers, Colin- Tags:
- Cyclone® IV FPGAs
Link Copied
0 Replies

Reply
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page