2008/12/22, Sebastien LELONG <[email protected]>: > > The minimum value that works for is 10µs. Okay, thanks.
> Maybe an hardware slave @ 8MHz is too slow to react ? Well... There are few things that are bugging me: - If it works at 400kHz with 20 mHz osc, why does it not work at 100 kHz with an 8 mHz osc? - It would be realy crippling if an 16f88 has a high-speed internal oscillator, but that would not allow the i2c device to run at the basic 100kHz speed and thus be incompatible with all i2c busses. - shifting bytes into a register should not be a problem at 100 kHz. - each bit takes 4x the delay to send. This means that 10us creates a cycle time of 40 us or 25kHz. So I think I have to retry this - get an 16f88 i2c slave working at the internal oscillator, get software i2c master to work with it and then see what it does with the hardware master... Although an 12us delay makes it work, I have the idea there is something else wrong and think it is worth to know what... Joep --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "jallib" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/jallib?hl=en -~----------~----~----~----~------~----~------~--~---
