Johan Wikman / Mbed 2 deprecated Squirrel

The Squirrel interpreter for FRDM-K64F, extended with a set of classes that provide access to the mbed functionality (currently DigitalIn, DigitalInOut, DigitalOut, InterruptIn, PwmOut, Ticker, Timeout, Timer).

Dependencies:   SQUIRREL3 mbed sqbind-0_99

The Squirrel interpreter for FRDM-K64F.

NOTE: Currently of POC quality.

See http://www.squirrel-lang.org/ for information about the Squirrel language.

Currently the following (a subset of their functionality) mbed classes are available from within Squirrel:

  • DigitalIn
  • DigitalOut
  • DigitalInOut
  • PwmOut
  • Ticker
  • Timeout
  • Timer

In addition, InterruptIn is supported, but interrupts are noted when they occur, but only delivered from the main loop of the interpreter.

See also README.txt in the root of the project.

sqmbed/src/digitalout.cpp@2:0df9688c9a11, 2014-12-16 (annotated)

Committer:
jhnwkmn
Date:
Tue Dec 16 13:32:06 2014 +0000
Revision:
2:0df9688c9a11
Parent:
1:540008bb92a2 
Updated libraries.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jhnwkmn 0:6f55c7651ccc 1 /*
jhnwkmn 1:540008bb92a2 2 Copyright 2014 Johan Wikman
jhnwkmn 1:540008bb92a2 3
jhnwkmn 1:540008bb92a2 4 Licensed under the Apache License, Version 2.0 (the "License");
jhnwkmn 1:540008bb92a2 5 you may not use this file except in compliance with the License.
jhnwkmn 1:540008bb92a2 6 You may obtain a copy of the License at
jhnwkmn 1:540008bb92a2 7
jhnwkmn 1:540008bb92a2 8 http://www.apache.org/licenses/LICENSE-2.0
jhnwkmn 1:540008bb92a2 9
jhnwkmn 1:540008bb92a2 10 Unless required by applicable law or agreed to in writing, software
jhnwkmn 1:540008bb92a2 11 distributed under the License is distributed on an "AS IS" BASIS,
jhnwkmn 1:540008bb92a2 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
jhnwkmn 1:540008bb92a2 13 See the License for the specific language governing permissions and
jhnwkmn 1:540008bb92a2 14 limitations under the License.
jhnwkmn 0:6f55c7651ccc 15 */
jhnwkmn 0:6f55c7651ccc 16
jhnwkmn 0:6f55c7651ccc 17 #include <sqmbed/digitalout.h>
jhnwkmn 0:6f55c7651ccc 18
jhnwkmn 0:6f55c7651ccc 19 template<>
jhnwkmn 0:6f55c7651ccc 20 struct SqBindAllocator<SqMbed::DigitalOut> {
jhnwkmn 0:6f55c7651ccc 21 static SQBIND_INLINE SqMbed::DigitalOut *construct(HSQUIRRELVM) {
jhnwkmn 0:6f55c7651ccc 22 return NULL; // make it not able to construct
jhnwkmn 0:6f55c7651ccc 23 }
jhnwkmn 0:6f55c7651ccc 24
jhnwkmn 0:6f55c7651ccc 25 static SQBIND_INLINE SqMbed::DigitalOut *copy_construct(const SqMbed::DigitalOut* p_from) {
jhnwkmn 0:6f55c7651ccc 26 return NULL; // make it not able to copy-construct
jhnwkmn 0:6f55c7651ccc 27 }
jhnwkmn 0:6f55c7651ccc 28
jhnwkmn 0:6f55c7651ccc 29 static SQBIND_INLINE bool assign(SqMbed::DigitalOut* p_val, const SqMbed::DigitalOut* p_from) {
jhnwkmn 0:6f55c7651ccc 30 return false; // make it not able to assign
jhnwkmn 0:6f55c7651ccc 31 }
jhnwkmn 0:6f55c7651ccc 32
jhnwkmn 0:6f55c7651ccc 33 static SQBIND_INLINE void destruct(SqMbed::DigitalOut* p_instance) {
jhnwkmn 0:6f55c7651ccc 34 delete p_instance;
jhnwkmn 0:6f55c7651ccc 35 }
jhnwkmn 0:6f55c7651ccc 36
jhnwkmn 0:6f55c7651ccc 37 static SQBIND_INLINE SqMbed::DigitalOut& get_empty() {
jhnwkmn 0:6f55c7651ccc 38 // if someone tries to assign, this will crash.
jhnwkmn 0:6f55c7651ccc 39 // however, this will likely never be called anyway.
jhnwkmn 0:6f55c7651ccc 40 static SqMbed::DigitalOut *crashplease=NULL;
jhnwkmn 0:6f55c7651ccc 41 return *crashplease;
jhnwkmn 0:6f55c7651ccc 42 }
jhnwkmn 0:6f55c7651ccc 43 };
jhnwkmn 0:6f55c7651ccc 44
jhnwkmn 0:6f55c7651ccc 45 namespace SqMbed
jhnwkmn 0:6f55c7651ccc 46 {
jhnwkmn 0:6f55c7651ccc 47
jhnwkmn 0:6f55c7651ccc 48 DigitalOut::DigitalOut(PinName pin)
jhnwkmn 0:6f55c7651ccc 49 : m_digOut(pin)
jhnwkmn 0:6f55c7651ccc 50 {
jhnwkmn 0:6f55c7651ccc 51 }
jhnwkmn 0:6f55c7651ccc 52
jhnwkmn 0:6f55c7651ccc 53 DigitalOut::~DigitalOut()
jhnwkmn 0:6f55c7651ccc 54 {
jhnwkmn 0:6f55c7651ccc 55 }
jhnwkmn 0:6f55c7651ccc 56
jhnwkmn 0:6f55c7651ccc 57 void DigitalOut::write(int value)
jhnwkmn 0:6f55c7651ccc 58 {
jhnwkmn 0:6f55c7651ccc 59 m_digOut.write(value);
jhnwkmn 0:6f55c7651ccc 60 }
jhnwkmn 0:6f55c7651ccc 61
jhnwkmn 0:6f55c7651ccc 62 int DigitalOut::read() const
jhnwkmn 0:6f55c7651ccc 63 {
jhnwkmn 0:6f55c7651ccc 64 return m_digOut.read();
jhnwkmn 0:6f55c7651ccc 65 }
jhnwkmn 0:6f55c7651ccc 66
jhnwkmn 0:6f55c7651ccc 67 // static
jhnwkmn 0:6f55c7651ccc 68 void DigitalOut::bind(HSQUIRRELVM vm)
jhnwkmn 0:6f55c7651ccc 69 {
jhnwkmn 0:6f55c7651ccc 70 SqBind<DigitalOut>::init(vm, _SC("DigitalOut"));
jhnwkmn 0:6f55c7651ccc 71 SqBind<DigitalOut>::set_custom_constructor(&DigitalOut::constructor);
jhnwkmn 0:6f55c7651ccc 72 sqbind_method(vm, "write", &DigitalOut::write);
jhnwkmn 0:6f55c7651ccc 73 sqbind_method(vm, "read", &DigitalOut::read);
jhnwkmn 0:6f55c7651ccc 74 }
jhnwkmn 0:6f55c7651ccc 75
jhnwkmn 0:6f55c7651ccc 76 // static
jhnwkmn 0:6f55c7651ccc 77 DigitalOut* DigitalOut::constructor(HSQUIRRELVM vm)
jhnwkmn 0:6f55c7651ccc 78 {
jhnwkmn 0:6f55c7651ccc 79 DigitalOut* pThis = 0;
jhnwkmn 0:6f55c7651ccc 80
jhnwkmn 0:6f55c7651ccc 81 int nParams = sq_gettop(vm);
jhnwkmn 0:6f55c7651ccc 82
jhnwkmn 0:6f55c7651ccc 83 if (nParams == 2) { // Need 1 (sic) params.
jhnwkmn 0:6f55c7651ccc 84 SQInteger i;
jhnwkmn 0:6f55c7651ccc 85
jhnwkmn 0:6f55c7651ccc 86 if (!SQ_FAILED(sq_getinteger(vm, 2, &i))) {
jhnwkmn 0:6f55c7651ccc 87 pThis = new DigitalOut(static_cast<PinName>(i));
jhnwkmn 0:6f55c7651ccc 88 } else {
jhnwkmn 0:6f55c7651ccc 89 printf("Could not get integer.");
jhnwkmn 0:6f55c7651ccc 90 }
jhnwkmn 0:6f55c7651ccc 91 } else {
jhnwkmn 0:6f55c7651ccc 92 printf("nParams != 2\n");
jhnwkmn 0:6f55c7651ccc 93 }
jhnwkmn 0:6f55c7651ccc 94
jhnwkmn 0:6f55c7651ccc 95 return pThis;
jhnwkmn 0:6f55c7651ccc 96 }
jhnwkmn 0:6f55c7651ccc 97
jhnwkmn 0:6f55c7651ccc 98 }