| ??? 09/09/05 08:55 Read: times |
#100849 - checked the MCBx51 board Responding to: ???'s previous message |
Hi, thanks for all ur replies
the blinky example works well .but if simply write setB p2.3 and connect and LED to the corresponding port it is not glowing.Also I can see 74HC30D in the MCBx51 board connected to port1. Do i need the connect any 74Hc30D to other ports too to make the LED to glow? i tried connecting 2.2K as the pull up resistor to the other ports and test the LED glowing....but it didnt work? |
| Topic | Author | Date |
| 8051 port problem | 01/01/70 00:00 | |
| Which port? | 01/01/70 00:00 | |
| Port current | 01/01/70 00:00 | |
| 8051 port problem | 01/01/70 00:00 | |
| Just look at this: | 01/01/70 00:00 | |
| NPN? | 01/01/70 00:00 | |
| schmitt trigger | 01/01/70 00:00 | |
I guess you are referring to the hex | 01/01/70 00:00 | |
| Have you tried BLINK? | 01/01/70 00:00 | |
| checked the MCBx51 board | 01/01/70 00:00 | |
| Connect as shown | 01/01/70 00:00 | |
| Led problem | 01/01/70 00:00 |