| ??? 02/10/05 20:12 Read: times |
#87105 - Corrected web site address Below: Responding to: ???'s previous message |
Hello Kalpak Dabir,
Here is the correct web address. http://forum.microchip.com/tm.asp?m=...chor#75446 There was a space character between "?m" which made it unusable. Below is a portion from that forum. This is definitely irrelevant posting all way around. Regards, Charles Bannister Using ports of 89C51 -------------------------------------------------------------------------------- Hi everyone ! I have to write a Assembler code for T89C51AC2 to generate PWM and I want that the duty cycle will be controlled by 8 bits from PC (8255). I used port 0 for inputs to microcontroller. In theory, when port 0 is 00H, the duty cycle will be 0% and when port 0 is FFH the duty cycle will be 100% . In fact, when I set the port 0 is 00H, the duty cycle is 0% (it seem to be correct). But when I only set port 0 is not 00H (even 01H) then the duty cycle is nearly 100%. I don't know why. Can someone tell me the solution? Note: I connect direct output of 8255 to port 0 of T89C51AC2. |
| Topic | Author | Date |
| King of irrelevant posting | 01/01/70 00:00 | |
| . | 01/01/70 00:00 | |
| and.. | 01/01/70 00:00 | |
| Longest thread | 01/01/70 00:00 | |
| Thats a long one | 01/01/70 00:00 | |
Looking for a long thread? | 01/01/70 00:00 | |
| Corrected web site address Below: | 01/01/70 00:00 | |
| the king is this then the prince? | 01/01/70 00:00 | |
| Makes me wonder | 01/01/70 00:00 |