From 7fe03d085c2ecaa324779093eceb1a12313ca25d Mon Sep 17 00:00:00 2001 From: yiancar Date: Fri, 28 Sep 2018 17:33:11 +0100 Subject: Update quantum matrix to support both AVR and Chibios ARM (#3968) * Update quantum matrix to support both AVR and Chibios ARM - Addition of STM32 pin definitions - Created abstruction layer defines to control GPIO (This is a bit pointless for Chibios as we are creating a PAL ontop of a PAL but it is necessary for uniformity with AVR) - Modified matrix.c to use the above functions * minor ifdef fix * Rename of functions and docs - Added documentation. - Renamed functions according to Jack's spec. * Massdrop fix * Update matrix.c * Update quantum.h * Update quantum.h * Update quantum.h * Update internals_gpio_control.md --- docs/internals_gpio_control.md | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 docs/internals_gpio_control.md (limited to 'docs/internals_gpio_control.md') diff --git a/docs/internals_gpio_control.md b/docs/internals_gpio_control.md new file mode 100644 index 0000000000..21643d30c9 --- /dev/null +++ b/docs/internals_gpio_control.md @@ -0,0 +1,23 @@ +# GPIO Control + +QMK has a GPIO control abstraction layer which is micro-controller agnostic. This is done to allow easy access to pin control across different platforms. + +## Functions + +The following functions can provide basic control of GPIOs and are found in `quantum/quantum.h`. + +|Function |Description | +|----------------------|------------------------------------------------------------------| +|`setPinInput(pin)` |Set pin as input with high impedance (High-Z) | +|`setPinInputHigh(pin)`|Set pin as input with build in pull-up | +|`setPinInputLow(pin)` |Set pin as input with build in pull-down (Supported only on STM32)| +|`setPinOutput(pin)` |Set pin as output | +|`writePinHige(pin)` |Set pin level as high, assuming it is an output | +|`writePinLow(pin)` |Set pin level as low, assuming it is an output | +|`writePin(pin, level)`|Set pin level, assuming it is an output | +|`readPin(pin)` |Returns the level of the pin | + +## Advance settings + +Each micro-controller can have multiple advance settings regarding its GPIO. This abstraction layer does not limit the use of architecture specific functions. Advance users should consult the datasheet of there desired device and include any needed libraries. For AVR the standard avr/io.h library is used and for STM32 the Chibios [PAL library](http://chibios.sourceforge.net/docs3/hal/group___p_a_l.html) is used. + -- cgit v1.2.1 From 15f6278aa623ceda4c220daee1cbedb9e38e6a97 Mon Sep 17 00:00:00 2001 From: Jack Humbert Date: Fri, 2 Nov 2018 12:31:40 -0400 Subject: Add support for Atmega32A to pin declarations and universal matrix (#4015) * add computed pins from mcu type * update for atmega32a * doc typo * add atmega16 chips, link to references * remove avr include from config * exclude assembler in config.h includes * consolodate options, add 646 * fix typo in pindef --- docs/internals_gpio_control.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'docs/internals_gpio_control.md') diff --git a/docs/internals_gpio_control.md b/docs/internals_gpio_control.md index 21643d30c9..083e696648 100644 --- a/docs/internals_gpio_control.md +++ b/docs/internals_gpio_control.md @@ -12,7 +12,7 @@ The following functions can provide basic control of GPIOs and are found in `qua |`setPinInputHigh(pin)`|Set pin as input with build in pull-up | |`setPinInputLow(pin)` |Set pin as input with build in pull-down (Supported only on STM32)| |`setPinOutput(pin)` |Set pin as output | -|`writePinHige(pin)` |Set pin level as high, assuming it is an output | +|`writePinHigh(pin)` |Set pin level as high, assuming it is an output | |`writePinLow(pin)` |Set pin level as low, assuming it is an output | |`writePin(pin, level)`|Set pin level, assuming it is an output | |`readPin(pin)` |Returns the level of the pin | -- cgit v1.2.1