/*JSON{ "type":"method", "class": "Serial", "name" : "setup",
"description" : ["Setup this Serial port with the given baud rate and options.",
"If not specified in options, the default pins are used (usually the lowest numbered pins on the lowest port that supports this peripheral)"],
"generate" : "jswrap_serial_setup",
"params" : [ [ "baudrate", "JsVar", "The baud rate - the default is 9600"],
[ "options", "JsVar", ["An optional structure containing extra information on initialising the serial port.",
"```{rx:pin,tx:pin,bytesize:8,parity:null/'none'/'o'/'odd'/'e'/'even',stopbits:1}```",
"You can find out which pins to use by looking at [your board's reference page](#boards) and searching for pins with the `UART`/`USART` markers.",
"Note that even after changing the RX and TX pins, if you have called setup before then the previous RX and TX pins will still be connected to the Serial port as well - until you set them to something else using digitalWrite" ] ] ]
}*/
void jswrap_serial_setup(JsVar *parent, JsVar *baud, JsVar *options) {
IOEventFlags device = jsiGetDeviceFromClass(parent);
if (!DEVICE_IS_USART(device)) return;
JshUSARTInfo inf;
jshUSARTInitInfo(&inf);
if (!jsvIsUndefined(baud)) {
int b = (int)jsvGetInteger(baud);
if (b<=100 || b > 10000000)
jsExceptionHere(JSET_ERROR, "Invalid baud rate specified");
else
inf.baudRate = b;
}
if (jsvIsObject(options)) {
inf.pinRX = jshGetPinFromVarAndUnLock(jsvObjectGetChild(options, "rx", 0));
inf.pinTX = jshGetPinFromVarAndUnLock(jsvObjectGetChild(options, "tx", 0));
JsVar *v;
v = jsvObjectGetChild(options, "bytesize", 0);
if (jsvIsInt(v))
inf.bytesize = (unsigned char)jsvGetInteger(v);
jsvUnLock(v);
inf.parity = 0;
v = jsvObjectGetChild(options, "parity", 0);
if(jsvIsString(v)) {
if(jsvIsStringEqual(v, "o") || jsvIsStringEqual(v, "odd"))
inf.parity = 1;
else if(jsvIsStringEqual(v, "e") || jsvIsStringEqual(v, "even"))
inf.parity = 2;
} else if(jsvIsInt(v)) {
inf.parity = (unsigned char)jsvGetInteger(v);
}
jsvUnLock(v);
if (inf.parity>2) {
jsExceptionHere(JSET_ERROR, "Invalid parity %d", inf.parity);
return;
}
v = jsvObjectGetChild(options, "stopbits", 0);
if (jsvIsInt(v))
inf.stopbits = (unsigned char)jsvGetInteger(v);
jsvUnLock(v);
}
jshUSARTSetup(device, &inf);
// Set baud rate in object, so we can initialise it on startup
if (inf.baudRate != DEFAULT_BAUD_RATE) {
jsvUnLock(jsvObjectSetChild(parent, USART_BAUDRATE_NAME, jsvNewFromInteger(inf.baudRate)));
} else
jsvRemoveNamedChild(parent, USART_BAUDRATE_NAME);
// Do the same for options
if (options)
jsvUnLock(jsvSetNamedChild(parent, options, DEVICE_OPTIONS_NAME));
else
jsvRemoveNamedChild(parent, DEVICE_OPTIONS_NAME);
}
/*JSON{ "type":"method", "class": "Serial", "name" : "setup",
"description" : "Setup this Serial port with the given baud rate and options",
"generate" : "jswrap_serial_setup",
"params" : [ [ "baudrate", "int", "The baud rate - the default is 9600"],
[ "options", "JsVar", ["An optional structure containing extra information on initialising the serial port.",
"```{rx:pin,tx:pin}```",
"Note that even after changing the RX and TX pins, if you have called setup before then the previous RX and TX pins will still be connected to the Serial port as well - until you set them to something else using digitalWrite" ] ] ]
}*/
void jswrap_serial_setup(JsVar *parent, JsVarInt baud, JsVar *options) {
IOEventFlags device = jsiGetDeviceFromClass(parent);
JshUSARTInfo inf;
jshUSARTInitInfo(&inf);
if (baud>0) inf.baudRate = (int)baud;
if (jsvIsObject(options)) {
inf.pinRX = jshGetPinFromVarAndUnLock(jsvObjectGetChild(options, "rx", 0));
inf.pinTX = jshGetPinFromVarAndUnLock(jsvObjectGetChild(options, "tx", 0));
inf.bytesize = (unsigned char)jsvGetIntegerAndUnLock(jsvObjectGetChild(options, "bytesize", 0));
JsVar *v;
v = jsvObjectGetChild(options, "parity", 0);
if(jsvIsNull(v)) {
inf.parity = 0;
}
else if(jsvIsString(v)) {
inf.parity = 0xFF;
char s[8] = "";
jsvGetString(v, s, sizeof(s) - 1);
if(!strcmp(s, "o") || !strcmp(s, "odd")) {
inf.parity = 1;
}
else if(!strcmp(s, "e") || !strcmp(s, "even")) {
inf.parity = 2;
}
}
else if(jsvIsInt(v)) {
inf.parity = (unsigned char)jsvGetInteger(v);
}
jsvUnLock(v);
v = jsvObjectGetChild(options, "stopbits", 0);
inf.stopbits = (unsigned char)jsvGetInteger(v);
jsvUnLock(v);
}
jshUSARTSetup(device, &inf);
// Set baud rate in object, so we can initialise it on startup
if (baud != DEFAULT_BAUD_RATE) {
JsVar *baudVar = jsvNewFromInteger(baud);
jsvUnLock(jsvSetNamedChild(parent, baudVar, USART_BAUDRATE_NAME));
jsvUnLock(baudVar);
} else
jsvRemoveNamedChild(parent, USART_BAUDRATE_NAME);
// Do the same for options
if (options)
jsvUnLock(jsvSetNamedChild(parent, options, DEVICE_OPTIONS_NAME));
else
jsvRemoveNamedChild(parent, DEVICE_OPTIONS_NAME);
}
/*JSON{
"type" : "staticmethod",
"class" : "Trig",
"name" : "setTrigger",
"generate" : "jswrap_trig_setTrigger",
"params" : [
["num","int","The trigger number (0..7)"],
["pos","float","The position (in degrees) to fire the trigger at"],
["pins","JsVar","An array of pins to pulse (max 4)"],
["pulseLength","float","The time (in msec) to pulse for"]
]
}
Set a trigger for a certain point in the cycle
*/
void jswrap_trig_setTrigger(JsVarInt num, JsVarFloat position, JsVar *pins, JsVarFloat pulseLength) {
TriggerStruct *trig = &mainTrigger;
if (num<0 || num>=TRIGGER_TRIGGERS_COUNT) {
jsWarn("Invalid trigger number\n");
return;
}
if (!jsvIsArray(pins)) {
jsWarn("Second argument must be an array of pins\n");
return;
}
if (jsvGetArrayLength(pins) > TRIGGERPOINT_TRIGGERS_COUNT) {
jsWarn("Too many pins in array\n");
return;
}
// convert from degrees to teeth
position = wrapAround(((position - trig->keyPosition) * trig->teethTotal / 360), trig->teethTotal);
TriggerPointStruct *tp = &trig->triggers[num];
tp->newTooth = (unsigned char)position;
tp->newToothFraction = (unsigned char)((position - tp->tooth)*256);
tp->pulseLength = jshGetTimeFromMilliseconds(pulseLength);
int i, l=(int)jsvGetArrayLength(pins);
for (i=0;i<TRIGGERPOINT_TRIGGERS_COUNT;i++) {
tp->pins[i] = (Pin)((i<l) ? jshGetPinFromVarAndUnLock(jsvGetArrayItem(pins, i)) : PIN_UNDEFINED);
}
// now copy over data if we need to do it immediately
if (tp->tooth==TRIGGERPOINT_TOOTH_DISABLE || tp->newTooth==TRIGGERPOINT_TOOTH_DISABLE) {
tp->tooth = tp->newTooth;
tp->toothFraction = tp->newToothFraction;
}
// all done!
}
/*JSON{
"type" : "method",
"class" : "I2C",
"name" : "setup",
"generate" : "jswrap_i2c_setup",
"params" : [
["options","JsVar",["An optional structure containing extra information on initialising the I2C port","```{scl:pin, sda:pin, bitrate:100000}```","You can find out which pins to use by looking at [your board's reference page](#boards) and searching for pins with the `I2C` marker. Note that 400000kHz is the maximum bitrate for most parts."]]
]
}
Set up this I2C port
If not specified in options, the default pins are used (usually the lowest numbered pins on the lowest port that supports this peripheral)
*/
void jswrap_i2c_setup(JsVar *parent, JsVar *options) {
IOEventFlags device = jsiGetDeviceFromClass(parent);
if (!DEVICE_IS_I2C(device)) return;
JshI2CInfo inf;
jshI2CInitInfo(&inf);
if (jsvIsObject(options)) {
inf.pinSCL = jshGetPinFromVarAndUnLock(jsvObjectGetChild(options, "scl", 0));
inf.pinSDA = jshGetPinFromVarAndUnLock(jsvObjectGetChild(options, "sda", 0));
JsVar *v = jsvObjectGetChild(options, "bitrate", 0);
if (v)
inf.bitrate = jsvGetIntegerAndUnLock(v);
}
jshI2CSetup(device, &inf);
// Set up options, so we can initialise it on startup
if (options)
jsvUnLock(jsvSetNamedChild(parent, options, DEVICE_OPTIONS_NAME));
else
jsvRemoveNamedChild(parent, DEVICE_OPTIONS_NAME);
}
static Pin onewire_getpin(JsVar *parent) {
return jshGetPinFromVarAndUnLock(jsvObjectGetChild(parent, "pin", 0));
}