| ??? 10/05/01 16:07 Read: times |
#15464 - RE: testing 6264 SRAM IC:Bordyn |
OK, I give up! Here's the Secret Magic Byte list (address/data) :
0001 = FE 0002 = FD 0004 = FB 0008 = F7 0010 = EF 0020 = DF 0040 = BF 0080 = EF 0100 = 02 0200 = 04 0400 = 08 0800 = 10 1000 = 20 2000 = 40 4000 = 80 Once you've written the whole sequence, read it back & check it, then do it all again, starting with the next Magic Byte. You can add a few more bytes to the list if you want (AA/55/96/69/00, etc). Regards, Richard A whole lot faster than writing a sequence to all RAM locations, & it will catch assembly (soldering!) faults. |
| Topic | Author | Date |
| testing 6264 SRAM IC | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC, Phillip | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC, Phillip | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC, Phillip | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC-P0 | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC-P0 | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC:Richard | 01/01/70 00:00 | |
| Walking 1's and 0's fast Test | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC:Bordyn | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC:Bordyn | 01/01/70 00:00 | |
| RE: testing 6264 SRAM IC:Bordyn | 01/01/70 00:00 | |
RE: testing 6264 SRAM IC: swap | 01/01/70 00:00 |