| ??? 10/23/08 06:03 Read: times |
#159274 - Are you 199% sure?? Responding to: ???'s previous message |
If you have not fully testing the WIP flag wait logic you may be fooling yourself as to the fact that it "appears" to work when in fact it does not.
One way to gain confidence that the WIP read is working correctly is to activate a port bit whilst you are looping in the WIP bit poll loop. And then clear the port bit upon exit of loop. Then monitor the port pin on an o-scope to see if the activated time corresponds to the typical write time specified in the EEPROM data sheet. If the pulse is way narrow it may indicate a problem with its timing or how you are reading it. Michael Karas |
| Topic | Author | Date |
| stacking numbers in memory code problem | 01/01/70 00:00 | |
| does readee put its value in 46H? | 01/01/70 00:00 | |
| readee reads memory | 01/01/70 00:00 | |
| Your code looks good to me | 01/01/70 00:00 | |
| it looks awful to me | 01/01/70 00:00 | |
| it was indented | 01/01/70 00:00 | |
| like this | 01/01/70 00:00 | |
| Instructions | 01/01/70 00:00 | |
| yes, yes, ok | 01/01/70 00:00 | |
| Guided/unguided? | 01/01/70 00:00 | |
| EEPROM not final | 01/01/70 00:00 | |
| Hard coded values | 01/01/70 00:00 | |
| that can't be it | 01/01/70 00:00 | |
| Are you 199% sure?? | 01/01/70 00:00 | |
| Here is the WRITEEE code | 01/01/70 00:00 | |
HA! figured it out | 01/01/70 00:00 |