Tsop40 willem adapter
Moderator: Moderators
Forum rules
- For making cartridges of your Super NES games, see Reproduction.
-
darknezz19
- Posts: 71
- Joined: Wed Aug 26, 2009 8:28 am
Tsop40 willem adapter
Hey guys i tried to make one of theseusing an old ide cable but am not sure where to tie the grounds to. Should they ground out on the willem card or pc chassis or somewhere else?
Connect it to the ground on the flash chip, labeled VSS in that schematic. Connect it to both VSS pins. A chassis ground might not be connected to electrical ground, but may be problematic even if it is (you don't want any voltage difference between it and the chip's ground, it's better to be closely coupled to 5V+ / VCC).
-
darknezz19
- Posts: 71
- Joined: Wed Aug 26, 2009 8:28 am
So do something like this Memblers? 30 and 29 tie together as well on it.
*Edit*
Would the 2k2 resistors translate to color code red red red or red red orange?
*Edit2*
At first the adapter was grounded to the pc chassis then willem card but of course neither worked. Could this have damaged the tsop?
*Edit*
Would the 2k2 resistors translate to color code red red red or red red orange?
*Edit2*
At first the adapter was grounded to the pc chassis then willem card but of course neither worked. Could this have damaged the tsop?
Yeah, that's right.
Looking up resistor color code (I don't have it memorized since I mostly jumped into the surface-mount stuff) it is red, red, red for 2.2kOhm.
If you were curious, chassis or earth ground (same thing, correct me if I'm wrong) is there to let current escape to ground, otherwise it becomes easier for the human body to become the escape route, heheh. At one point I found out there was a bad ground connection in my basement because I was getting shocked while soldering some NES boards, I getting zapped through the traces, on individual edge connector pins. It's like a really painful way to do an electrical test of a board, haha.
Looking up resistor color code (I don't have it memorized since I mostly jumped into the surface-mount stuff) it is red, red, red for 2.2kOhm.
Seems possible, but I don't know how likely. I guess it could even depend on your house's wiring and stuff. Use a voltmeter to check the difference between the circuit's ground and chassis ground. Maybe any difference more than 0.75V would be bad for the chip.At first the adapter was grounded to the pc chassis then willem card but of course neither worked. Could this have damaged the tsop?
If you were curious, chassis or earth ground (same thing, correct me if I'm wrong) is there to let current escape to ground, otherwise it becomes easier for the human body to become the escape route, heheh. At one point I found out there was a bad ground connection in my basement because I was getting shocked while soldering some NES boards, I getting zapped through the traces, on individual edge connector pins. It's like a really painful way to do an electrical test of a board, haha.
