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Trying to figure out the input_device_list args.

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Evelyn Eastmond 2019-06-14 14:44:42 -04:00
parent abe5fa62e4
commit ca408dfb04
1 changed files with 13 additions and 9 deletions
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22
src/extensions/scratch3_ev3/index.js
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@ -41,11 +41,13 @@ const BTSendRateMax = 40;
* @enum {number} * @enum {number}
*/ */
const Ev3ParamEncoding = { const Ev3ParamEncoding = {
ONE_BYTE: 0x81, // = 0b1000-001 = constant value, 1 byte to follow GLOBAL_CONSTANT_INDEX_0: 0x20, // = 0b00100000 = global constant value > index "0"
TWO_BYTES: 0x82, // = 0b1000-010 = constant value, 2 bytes to follow GLOBAL_CONSTANT_INDEX_1: 0x21, // = 0b00100001 = global constant value > index "1"
FOUR_BYTES: 0x83, // = 0b1000-011 = constant value, 4 bytes to follow GLOBAL_VARIABLE_INDEX_0: 0x60, // = 0b00110000 = global variable value > index "0"
GLOBAL_ONE_BYTE: 0xE1, // = 0b1110-001 = size of global var, 1 byte to follow ONE_BYTE: 0x81, // = 0b1000-001 = constant value > 1 byte to follow
GLOBAL_INDEX_0: 0x20 // = 0b00100000 = global var index "0" TWO_BYTES: 0x82, // = 0b1000-010 = constant value > 2 bytes to follow
FOUR_BYTES: 0x83, // = 0b1000-011 = constant value > 4 bytes to follow
GLOBAL_ONE_BYTE: 0xE1 // = 0b1110-001 = size of global var, 1 byte to follow
}; };
/** /**
@ -95,6 +97,8 @@ const Ev3Args = {
COAST: 0x00, COAST: 0x00,
BRAKE: 0x01, BRAKE: 0x01,
RAMP: 50, // time in milliseconds RAMP: 50, // time in milliseconds
ONE_BYTE: 4, // length value as a constant
FOUR_BYTES: 32, // length value as a constant
DO_NOT_CHANGE_TYPE: 0 DO_NOT_CHANGE_TYPE: 0
}; };
@ -735,11 +739,11 @@ class EV3 {
if (this._pollingCounter % 20 === 0) { if (this._pollingCounter % 20 === 0) {
// GET DEVICE LIST // GET DEVICE LIST
cmds[0] = Ev3Opcode.OPINPUT_DEVICE_LIST; cmds[0] = Ev3Opcode.OPINPUT_DEVICE_LIST;
cmds[1] = Ev3ParamEncoding.ONE_BYTE; cmds[1] = Ev3ParamEncoding.ONE_BYTE; // TODO: Length?
cmds[2] = 33; // 0x21 ARRAY // TODO: document cmds[2] = Ev3ParamEncoding.GLOBAL_CONSTANT_INDEX_1; // TODO: Array?
cmds[3] = 96; // 0x60 CHANGED // TODO: document cmds[3] = Ev3ParamEncoding.GLOBAL_VARIABLE_INDEX_0; // TODO: Changed?
cmds[4] = Ev3ParamEncoding.GLOBAL_ONE_BYTE; cmds[4] = Ev3ParamEncoding.GLOBAL_ONE_BYTE;
cmds[5] = Ev3ParamEncoding.GLOBAL_INDEX_0; cmds[5] = Ev3ParamEncoding.GLOBAL_CONSTANT_INDEX_0;
// Command and payload lengths // Command and payload lengths
allocation = 33; allocation = 33;