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Merge pull request #8622 from hg42/implement-LPC1768-GET_TIMER

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[2.0.x][LPC1768][fix] Implement GET_TIMER and other GET_xxx, fixes PWM
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Bob-the-Kuhn 2017-12-03 14:46:22 -06:00 committed by GitHub
commit 4c5356f77a
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1 changed files with 17 additions and 5 deletions
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22
Marlin/src/HAL/HAL_LPC1768/fastio.h
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@ -85,13 +85,25 @@ bool useable_hardware_PWM(pin_t pin);
/// set pin as input with pullup mode
#define _PULLUP(IO, v) (pinMode(IO, (v!=LOW ? INPUT_PULLUP : INPUT)))
// hg42: all pins can be input or output (I hope)
// hg42: undefined pins create compile error (IO, is no pin)
// hg42: currently not used, but was used by pinsDebug
/// check if pin is an input
#define _GET_INPUT(IO)
#define _GET_INPUT(IO) (LPC1768_PIN_PIN(IO)>=0)
/// check if pin is an output
#define _GET_OUTPUT(IO)
#define _GET_OUTPUT(IO) (LPC1768_PIN_PIN(IO)>=0)
// hg42: GET_TIMER is used only to check if it's a PWM pin
// hg42: we cannot use USEABLE_HARDWARE_PWM because it uses a function that cannot be used statically
// hg42: instead use PWM bit from the #define
/// check if pin is an timer
#define _GET_TIMER(IO)
#define _GET_TIMER(IO) TRUE // could be LPC1768_PIN_PWM(IO), but there
// hg42: could be this:
// #define _GET_TIMER(IO) LPC1768_PIN_PWM(IO)
// but this is an incomplete check (12 pins are PWMable, but only 6 can be used at the same time)
/// Read a pin wrapper
#define READ(IO) _READ(IO)
@ -111,9 +123,9 @@ bool useable_hardware_PWM(pin_t pin);
#define SET_OUTPUT(IO) do{ _SET_OUTPUT(IO); _WRITE(IO, LOW); }while(0)
/// check if pin is an input wrapper
#define GET_INPUT(IO) _GET_INPUT(IO) // todo: Never used?
#define GET_INPUT(IO) _GET_INPUT(IO)
/// check if pin is an output wrapper
#define GET_OUTPUT(IO) _GET_OUTPUT(IO) //todo: Never Used?
#define GET_OUTPUT(IO) _GET_OUTPUT(IO)
/// check if pin is an timer wrapper
#define GET_TIMER(IO) _GET_TIMER(IO)