Forum Discussion
Altera_Forum
Honored Contributor
17 years agoI2C real time clock (RTC) again.
Hi, Before the forum crashed there was an ongoing thread on this topic. Does anyone know if it ever got solved? Thanks, Alex
Altera_Forum
Honored Contributor
17 years agohalfdome, Michael,
Sorry for the delay but I haven't been able to post (or reply or contact the admins) for the last two weeks. Somehow I lost this ability after the crash, but didn't know it. I have resolved the problem. Short answer to your question, no. I have been busy with some other problems (features) for the last few months and did not want to update our kernel until now. I am updating our kernel to the latest revision, porting old projects and setting up for a new project. Everything has gone well following the wiki and the NEEK can now boot the latest 'default' configuration of the 'test-nios2' branch successfully. I got a message from Hippo at the end of April indicating that he had successfully gotten a DS1338 to work on a NEEK and that he had applied some patches to the 'unstable' branch. (Thanks Hippo). I have added a breadboard to the NEEK containing a DS1338 RTC and a 24LC256 eeprom similar to the I2C example on the "Video" wiki page. I will try to get the kernel to recognize the RTC while I am reconfiguring the kernel for our projects. I will be out of the office till next week and will continue then. I will post what I find. If you discover anything please pass it on. Good Huntin' cb p.s. Be aware that the power on this header is 3.3V but the I2C levels come from a 2.5V bank of the FPGA. I added a shotky diode inline with the power to drop the supply voltage some.