| ??? 12/08/05 22:27 Read: times |
#104923 - The ground pin Responding to: ???'s previous message |
Edgardo Gonzalez said:
im looking at my schematic ... where could i fit the ground wire? I may not understand where you are looking in the 232.
ED The RS-232 voltage levels output by your '232 are all referenced to the ground provided to the '232, which is the logic ground for your entire system. Thus, the ground pin of the serial connector (DB-9, DB-25, etc.) needs to be connected to a ground point on your board. --Sasha Jevtic |
| Topic | Author | Date |
| 8052 with a decoder - help! | 01/01/70 00:00 | |
| in addition .. | 01/01/70 00:00 | |
| can not work ! | 01/01/70 00:00 | |
| Program store? | 01/01/70 00:00 | |
| 8052 with a decoder - not a -31 | 01/01/70 00:00 | |
| im sorry :( | 01/01/70 00:00 | |
| if the problem you refer to is no code m | 01/01/70 00:00 | |
| ok | 01/01/70 00:00 | |
| The ground pin | 01/01/70 00:00 | |
| Yes, there are problems | 01/01/70 00:00 | |
| grounded | 01/01/70 00:00 | |
| picture | 01/01/70 00:00 | |
| No picture | 01/01/70 00:00 | |
| thoguht so .. | 01/01/70 00:00 | |
| Tristate latch output enable | 01/01/70 00:00 | |
| YOU ARE GOD! | 01/01/70 00:00 | |
| i am curious .. | 01/01/70 00:00 | |
| Welcome to embedded systems | 01/01/70 00:00 | |
| Thanks A Lot | 01/01/70 00:00 | |
| WHAT memory??? | 01/01/70 00:00 | |
| RAM | 01/01/70 00:00 | |
| it is .. | 01/01/70 00:00 | |
| another pic | 01/01/70 00:00 | |
| Another bad picture | 01/01/70 00:00 | |
| updated schematic | 01/01/70 00:00 | |
| AIM | 01/01/70 00:00 | |
| Look at U8 | 01/01/70 00:00 | |
| thank you | 01/01/70 00:00 | |
| KISS | 01/01/70 00:00 | |
| New problems ... | 01/01/70 00:00 | |
| picture | 01/01/70 00:00 | |
| Switches | 01/01/70 00:00 | |
| here you go sasha | 01/01/70 00:00 | |
| sry here .. | 01/01/70 00:00 | |
| Not clear | 01/01/70 00:00 | |
| if this is accurate, you are trying to r | 01/01/70 00:00 | |
| Looks ok | 01/01/70 00:00 | |
| the '244 output is connected NOT to a | 01/01/70 00:00 | |
| But wait, there's more | 01/01/70 00:00 | |
| So, how are they connected? | 01/01/70 00:00 | |
| New Questions | 01/01/70 00:00 | |
| 5.7V | 01/01/70 00:00 | |
| I have no recollection of asking about a | 01/01/70 00:00 | |
| Pull ups are definitely a good idea | 01/01/70 00:00 | |
| Look For... | 01/01/70 00:00 | |
| here .. | 01/01/70 00:00 | |
Ratings | 01/01/70 00:00 |