Started by GUNHED, 23:11, 13 September 18
0 Members and 1 Guest are viewing this topic.
Quote from: Bryce on 09:40, 14 September 18You had 100 PCBs made AND soldered on ALL the ACIDs BEFORE verifying the board?? Oops!
Quote from: Shining on 09:23, 14 September 18For a first go: The EPROM seems to be connected correctly but the chip-select pin is not connected ! This line only goes to the ACID.
Quote from: Shining on 09:23, 14 September 18When you look at the front of your pcb, you will see that the third connector pin goes to EPROM pin 17 (bottom pins, left), Next connector pin goes to 18 and so on.But connector pin 8 (from left) has to go to EPROM pin 22, which is not the case. If this is the only bug (I did not inspect the connections to ACID), a simple wire should fix it.
Quote from: Shining on 09:23, 14 September 18I do not know, if I find some time this evening, but i'll try if it works then.
Quote from: Shining on 09:23, 14 September 18Edit: Output-Enable is also not connected (EPROM pin 24). So the EPROM is definitely delivering no data....
Page created in 0.140 seconds with 35 queries.