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PIC 12F629 gpio internal pull-up/down settings
Posted: Thu Jun 16, 2022 9:34 am
by mansiukit
Hi, I have a difficulty to set the code of gpio internal pull-up/down settings. Anyone can teach me how to set the code? Thank a lot!
Re: PIC 12F629 gpio internal pull-up/down settings
Posted: Thu Jun 16, 2022 9:41 am
by BenR
Hello,
The PIC12F629 only has internal pull up resistors but these can be enabled as follows using a C icon.
Code: Select all
OPTION_REG = OPTION_REG & 0x7F; //Clear GPPU bit enabling pull ups
WPU = 0x11; //Enable Pullup on GPIO0 & GPIO4
Re: PIC 12F629 gpio internal pull-up/down settings
Posted: Thu Jun 16, 2022 10:21 am
by mansiukit
BenR wrote: ↑Thu Jun 16, 2022 9:41 am
Hello,
The PIC12F629 only has internal pull up resistors but these can be enabled as follows using a C icon.
Code: Select all
OPTION_REG = OPTION_REG & 0x7F; //Clear GPPU bit enabling pull ups
WPU = 0x11; //Enable Pullup on GPIO0 & GPIO4
Is it correct? The internal pull up resistors of IOPort 4 is still disable.
Thanks.
Re: PIC 12F629 gpio internal pull-up/down settings
Posted: Thu Jun 16, 2022 10:46 am
by BenR
Hello,
You have the C code in between the /* and */ symbols, these are comment blocks and need removing otherwise the code is effectively commented out.
Re: PIC 12F629 gpio internal pull-up/down settings
Posted: Thu Jun 16, 2022 11:23 am
by mansiukit
BenR wrote: ↑Thu Jun 16, 2022 10:46 am
Hello,
You have the C code in between the /* and */ symbols, these are comment blocks and need removing otherwise the code is effectively commented out.
Thank you so much