| ??? 09/25/07 14:13 Modified: 09/25/07 14:21 Read: times |
#144978 - Doubt in 8052 |
Hai friends,
I am new to 8052uC. For the past few days I am struggling with at89c52 to bring the results in ports. I just wanted to interface LCD with this. But i was unable to. I have tried to toggle each and every port, but at the port it only gives a millivolt output. I am using port 0. I am following the conventional circuit which was given in the book. That is connecting 9th pin to -ve terminal of capacitor and +ve to +vcc, then a swith to reset. 31st pin to +vcc, 20th pin to GND, 40th pin to +vcc. Now my condition is - 1. LCD's (16x2)gives first row glowing with full of squares, which I cam to know that it is okay!! 2. Tried to change the program, but I have tried the same program in another board with 8052, the LCD gives proper output. 3. Now my problem is in the hardware unit. Can anyone suggest where I am doing the mistake?? Looking for your assistance, Thank you. |
| Topic | Author | Date |
| Doubt in 8052 | 01/01/70 00:00 | |
| Need more info | 01/01/70 00:00 | |
| Pullups on P0? | 01/01/70 00:00 | |
| Pull ups | 01/01/70 00:00 | |
| ... and? | 01/01/70 00:00 | |
| Codes for my application | 01/01/70 00:00 | |
| Incomplete LCD Initialization | 01/01/70 00:00 | |
| Next steps | 01/01/70 00:00 | |
| Two questions/suggestions | 01/01/70 00:00 | |
| U r just one step back, march ahead... | 01/01/70 00:00 | |
| Brightness? | 01/01/70 00:00 | |
| thanx, its what u understood! | 01/01/70 00:00 | |
| they r just bothering u! try mine | 01/01/70 00:00 | |
| it can be problem of EN pin.... | 01/01/70 00:00 | |
| Pull Up | 01/01/70 00:00 | |
| One more doubt | 01/01/70 00:00 | |
New topic! | 01/01/70 00:00 |