lpcware

i2c Fast-Mode Overclock

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by neilt6 on Tue May 14 22:33:17 MST 2013
This isn't an LPC specific question, but what are the risks of running an i2c bus faster than some of the peripherals are rated to handle? I've got an LPC11U35 connected to two PCA9952's (Max 1Mhz), a MAX17048G+ (Max 400khz), and an LM75B (Max 400khz). I tried cranking the bus speed up to 1MHz, but nothing changed. All the the devices seem to work just fine. I'm not sure how to check if any clock stretching is happening...

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