| ??? 03/20/11 15:41 Read: times Msg Score: +1 +1 Informative |
#181619 - Solved!!! Responding to: ???'s previous message |
Phew!!! finally solved
Kai Klaas said:
Can you check the SDA and SCL line by the help of scope? Is there action at all? Yup the action was all there. But your post & Michael's post regarding PD made me re-look the I2C routines. I compared my I2C routines with the I2C routines uploaded in the 8052 code library. I did two things doubled the nops in the delay routine and tweaked the I2C clock & data lines before checking for ACK as per the I2C routines in the code library. And lo behold 2.5 volts was there:):) Many thanks everybody for your posts & support. warm regards Punit |
| 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 |