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Hi Does anyone know what the default port logic levels are for the LPC2212 when the device is blank and energised ready for programming Also what are the default levels for all ports during energisation when the device is programmed with sw Thanks for your help Scott

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Hi, after reset no matter whether programmed or not, in general ports are input, I2C ports are open drain. After programming, ports that you define as outputs will eb driving according to the high / low level you programmed Cheers, Bob --- In , "scottkelsall" <scottkelsall@y...> wrote: > > Hi > > Does anyone know what the default port logic levels are for the > LPC2212 when the device is blank and energised ready for programming > > Also what are the default levels for all ports during energisation > when the device is programmed with sw > > Thanks for your help > > Scott

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Hi Thanks for your help Cheers, Scott --- In , "lpc2100_fan" <lpc2100_fan@y...> wrote: > > Hi, > > after reset no matter whether programmed or not, in general ports are > input, I2C ports are open drain. > After programming, ports that you define as outputs will eb driving > according to the high / low level you programmed > > Cheers, Bob > > --- In , "scottkelsall" <scottkelsall@y...> wrote: > > > > Hi > > > > Does anyone know what the default port logic levels are for the > > LPC2212 when the device is blank and energised ready for programming > > > > Also what are the default levels for all ports during energisation > > when the device is programmed with sw > > > > Thanks for your help > > > > Scott

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The I2C lines are not configured to open drain by default. P0.2 and P0.2 will be in GPIO mode after reset. User manual, page 117, last column, Reset Value=00 --- In , "lpc2100_fan" <lpc2100_fan@y...> wrote: > > Hi, > > after reset no matter whether programmed or not, in general ports are > input, I2C ports are open drain. > After programming, ports that you define as outputs will eb driving > according to the high / low level you programmed > > Cheers, Bob > > --- In , "scottkelsall" <scottkelsall@y...> wrote: > > > > Hi > > > > Does anyone know what the default port logic levels are for the > > LPC2212 when the device is blank and energised ready for programming > > > > Also what are the default levels for all ports during energisation > > when the device is programmed with sw > > > > Thanks for your help > > > > Scott

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On 20 Jan 2005 at 21:03, lpcarmed wrote: > > The I2C lines are not configured to open drain by default. P0.2 and > P0.2 will be in GPIO mode after reset. User manual, page 117, last > column, Reset Value=00 Even though these pins are configured as GPIO lines, they remain open-drain. They are not only configured as open-drain when the I2C functionality is selected. Regards Anton Erasmus > --- In , "lpc2100_fan" <lpc2100_fan@y...> > wrote: > > Hi, > > after reset no matter whether programmed or not, in > general ports are > input, I2C ports are open drain. > After > programming, ports that you define as outputs will eb driving > > according to the high / low level you programmed > > Cheers, Bob > > > --- In , "scottkelsall" <scottkelsall@y...> > wrote: > > > > Hi > > > > Does anyone know what the default port logic > levels are for the > > LPC2212 when the device is blank and energised > ready for programming > > > > Also what are the default levels for all > ports during energisation > > when the device is programmed with sw > > > > > Thanks for your help > > > > Scott > > Yahoo! Groups Links -- A J Erasmus

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