| ??? 03/20/11 13:10 Read: times |
#181617 - Tried these as well Responding to: ???'s previous message |
Michael Karas said:
1) Have the VREF connected to all pins of the part that require a VREF connection? Yup this is done and verified. Michael Karas said:
2) Are both the DGND and AGND hooked up? Done & verified as well Michael Karas said:
3) Have you carefully studied and implemented the commands with regard to the PD bit to make sure that you have not accidently put the device in PD mode which causes the outputs to go to float mode looking like 16K ohms to AGND. I have a feeling that the MAX521 is in the PD mode. I could not find any mention in the datasheet which says that on powerup the MAX521 is in PD mode. As far as I can ascertain, the commands in my code are correct and I am not accidentally putting the MAX521 in PD mode either. Would be grateful if someone can cross check my code. Many thanks for the prompt responses Kai, Neil & Michael. My MAX521 woes continue:( |
| Topic | Author | Date |
| Getting a MAX521 to work with AT89S52 | 01/01/70 00:00 | |
| Open-collector or open-drain! | 01/01/70 00:00 | |
| Quasi bidirectional | 01/01/70 00:00 | |
| Tried port 0 | 01/01/70 00:00 | |
| Checked these things? | 01/01/70 00:00 | |
| Tried these as well | 01/01/70 00:00 | |
| Is the micro running at all? | 01/01/70 00:00 | |
Solved!!! | 01/01/70 00:00 |