| ??? 03/25/05 15:17 Read: times |
#90413 - All High. Responding to: ???'s previous message |
Hemant said:
my microcontroller is showing HIGHon all pins (except reset and gnd of course :) )when the code is loaded. why this would be happening? the uC is P89C51RD2BN. Thats absoltuely normal when you start an 8051, All the port pins are in "Input mode" and in input mode they are set to high. Remember whenever you need to make a port pin an input pin you write 1 to it. Regards, Prahlad Purohit |
| Topic | Author | Date |
| format of hard disk | 01/01/70 00:00 | |
| Why not? | 01/01/70 00:00 | |
| its the 1st step... one more ques. | 01/01/70 00:00 | |
| All High. | 01/01/70 00:00 | |
| ports are output when you start 8051 | 01/01/70 00:00 | |
| Your statement is wrong | 01/01/70 00:00 | |
| Quite right! | 01/01/70 00:00 | |
| Wrong!!!. 8051 ports. | 01/01/70 00:00 | |
| Input/output | 01/01/70 00:00 | |
| 8051 ports. | 01/01/70 00:00 | |
| Which Book? | 01/01/70 00:00 | |
| 8051 Ports on Startup | 01/01/70 00:00 | |
| 8051 Ports. | 01/01/70 00:00 | |
The End | 01/01/70 00:00 | |
| I Would Like to Point Out . . . | 01/01/70 00:00 | |
| Why Hard disk. | 01/01/70 00:00 | |
| thats the req. | 01/01/70 00:00 | |
| CF Better in all aspects. | 01/01/70 00:00 |