Files
ESP-Nodes/node_modules/esptool-js/lib/reset.js
2025-07-26 14:04:40 -04:00

199 lines
6.0 KiB
JavaScript

/**
* Sleep for ms milliseconds
* @param {number} ms Milliseconds to wait
* @returns {Promise<void>}
*/
function sleep(ms) {
return new Promise((resolve) => setTimeout(resolve, ms));
}
/**
* Execute a classic set of commands that will reset the chip.
*
* Commands (e.g. R0) are defined by a code (R) and an argument (0).
*
* The commands are:
*
* D: setDTR - 1=True / 0=False
*
* R: setRTS - 1=True / 0=False
*
* W: Wait (time delay) - positive integer number (miliseconds)
*
* "D0|R1|W100|D1|R0|W50|D0" represents the classic reset strategy
* @param {Transport} transport Transport class to perform serial communication.
* @param {number} resetDelay Delay in milliseconds for reset.
*/
export class ClassicReset {
constructor(transport, resetDelay) {
this.resetDelay = resetDelay;
this.transport = transport;
}
async reset() {
await this.transport.setDTR(false);
await this.transport.setRTS(true);
await sleep(100);
await this.transport.setDTR(true);
await this.transport.setRTS(false);
await sleep(this.resetDelay);
await this.transport.setDTR(false);
}
}
/**
* Execute a set of commands for USB JTAG serial reset.
*
* Commands (e.g. R0) are defined by a code (R) and an argument (0).
*
* The commands are:
*
* D: setDTR - 1=True / 0=False
*
* R: setRTS - 1=True / 0=False
*
* W: Wait (time delay) - positive integer number (miliseconds)
* @param {Transport} transport Transport class to perform serial communication.
*/
export class UsbJtagSerialReset {
constructor(transport) {
this.transport = transport;
}
async reset() {
await this.transport.setRTS(false);
await this.transport.setDTR(false);
await sleep(100);
await this.transport.setDTR(true);
await this.transport.setRTS(false);
await sleep(100);
await this.transport.setRTS(true);
await this.transport.setDTR(false);
await this.transport.setRTS(true);
await sleep(100);
await this.transport.setRTS(false);
await this.transport.setDTR(false);
}
}
/**
* Execute a set of commands that will hard reset the chip.
*
* Commands (e.g. R0) are defined by a code (R) and an argument (0).
*
* The commands are:
*
* D: setDTR - 1=True / 0=False
*
* R: setRTS - 1=True / 0=False
*
* W: Wait (time delay) - positive integer number (miliseconds)
* @param {Transport} transport Transport class to perform serial communication.
* @param {boolean} usingUsbOtg is it using USB-OTG ?
*/
export class HardReset {
constructor(transport, usingUsbOtg = false) {
this.transport = transport;
this.usingUsbOtg = usingUsbOtg;
this.transport = transport;
}
async reset() {
if (this.usingUsbOtg) {
await sleep(200);
await this.transport.setRTS(false);
await sleep(200);
}
else {
await sleep(100);
await this.transport.setRTS(false);
}
}
}
/**
* Validate a sequence string based on the following format:
*
* Commands (e.g. R0) are defined by a code (R) and an argument (0).
*
* The commands are:
*
* D: setDTR - 1=True / 0=False
*
* R: setRTS - 1=True / 0=False
*
* W: Wait (time delay) - positive integer number (miliseconds)
* @param {string} seqStr Sequence string to validate
* @returns {boolean} Is the sequence string valid ?
*/
export function validateCustomResetStringSequence(seqStr) {
const commands = ["D", "R", "W"];
const commandsList = seqStr.split("|");
for (const cmd of commandsList) {
const code = cmd[0];
const arg = cmd.slice(1);
if (!commands.includes(code)) {
return false; // Invalid command code
}
if (code === "D" || code === "R") {
if (arg !== "0" && arg !== "1") {
return false; // Invalid argument for D and R commands
}
}
else if (code === "W") {
const delay = parseInt(arg);
if (isNaN(delay) || delay <= 0) {
return false; // Invalid argument for W command
}
}
}
return true; // All commands are valid
}
/**
* Custom reset strategy defined with a string.
*
* The sequenceString input string consists of individual commands divided by "|".
*
* Commands (e.g. R0) are defined by a code (R) and an argument (0).
*
* The commands are:
*
* D: setDTR - 1=True / 0=False
*
* R: setRTS - 1=True / 0=False
*
* W: Wait (time delay) - positive integer number (miliseconds)
*
* "D0|R1|W100|D1|R0|W50|D0" represents the classic reset strategy
* @param {Transport} transport Transport class to perform serial communication.
* @param {string} sequenceString Custom string sequence for reset strategy
*/
export class CustomReset {
constructor(transport, sequenceString) {
this.transport = transport;
this.sequenceString = sequenceString;
this.transport = transport;
}
async reset() {
const resetDictionary = {
D: async (arg) => await this.transport.setDTR(arg),
R: async (arg) => await this.transport.setRTS(arg),
W: async (delay) => await sleep(delay),
};
try {
const isValidSequence = validateCustomResetStringSequence(this.sequenceString);
if (!isValidSequence) {
return;
}
const cmds = this.sequenceString.split("|");
for (const cmd of cmds) {
const cmdKey = cmd[0];
const cmdVal = cmd.slice(1);
if (cmdKey === "W") {
await resetDictionary["W"](Number(cmdVal));
}
else if (cmdKey === "D" || cmdKey === "R") {
await resetDictionary[cmdKey](cmdVal === "1");
}
}
}
catch (error) {
throw new Error("Invalid custom reset sequence");
}
}
}
export default { ClassicReset, CustomReset, HardReset, UsbJtagSerialReset, validateCustomResetStringSequence };