May have replied directly with my reply and didn't post properly . . . please re-post question here if you got it, else I'll put it back up. Thanks.
On Thursday, March 13, 2014 8:43:39 AM UTC-7, Ytai wrote: > > This seems the right place to change. Are you sure you are actually > running the firmware that you've modified? How did you install it on the > IOIO? > > > On Wed, Mar 12, 2014 at 8:06 PM, Rich <[email protected] > <javascript:>>wrote: > >> Hello, >> >> I was wondering, has anyone (users and/or the IOIO inventor) experimented >> with modifying the I2C clock rates below and beyond the currently supported >> rates (100KHz, 400kHz, 1MHz)? >> >> I have a device that can only run at 10KHz . . . I updated line 129 in >> the i2c.c IOIO firmware source (static const unsigned int brg_values[] = { >> 0x063D, 0x25, 0x0D }; //first element updated from 0x9D for 10KHz), >> compiled and downloaded the firmware. Using the correct enum RATE value, I >> received about 100KHz on my oscilloscope showing the incorrect clock rate >> not the new 10KHz. I also built another firmware version updating all of >> the brg_values to 0x063D to ensure that the changes were being passed >> properly and I confirmed that when I set the TWI rate to 1MHz for instance, >> I also receive 100KHz. >> >> Does the internal clock runs at 32 MHz? Any possible issues with >> modifying these values? I don't see anything in the PIC24 datasheet showing >> that I am limited to these three clock rates. Can anyone confirm? >> >> >> Thanks for your help and assistance. >> >> Best, >> Rich >> >> -- >> You received this message because you are subscribed to the Google Groups >> "ioio-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To post to this group, send email to [email protected]<javascript:> >> . >> Visit this group at http://groups.google.com/group/ioio-users. >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "ioio-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/ioio-users. For more options, visit https://groups.google.com/d/optout.
