| ??? 11/25/09 20:06 Read: times |
#171171 - The LCD shows a 255. Responding to: ???'s previous message |
The convert and display function shows a 255 on the LCD. Therefore, I checked with a digital multimeter on the port pins and it shoed me 5v on the entire port 1.
I also tried giving the convert and display function at the end of the code like you suggested,but still no output changes. |
| Topic | Author | Date |
| Receiving output from ADC0848. | 01/01/70 00:00 | |
| Don't feed other pins without VCC | 01/01/70 00:00 | |
| CS and RD working. | 01/01/70 00:00 | |
| Wrong understanding of ADC! | 01/01/70 00:00 | |
| But according to Mazidi... | 01/01/70 00:00 | |
| No, you don't! | 01/01/70 00:00 | |
| Sorry! | 01/01/70 00:00 | |
| How do you see that? | 01/01/70 00:00 | |
| The LCD shows a 255. | 01/01/70 00:00 | |
| But this can have zillions of reasons... | 01/01/70 00:00 | |
| Never retype source code when posting | 01/01/70 00:00 | |
| Working! But with errors... | 01/01/70 00:00 | |
| You must convert raw ADC reading into temperature | 01/01/70 00:00 | |
Self-heating? | 01/01/70 00:00 | |
| Configured as push-pull? | 01/01/70 00:00 | |
| It's a P89v51RD2 | 01/01/70 00:00 | |
| Difference only noticeable if contention | 01/01/70 00:00 | |
| then STOP what you are doing | 01/01/70 00:00 |