Method buildSerial

tools/xsbug/esptool.js:462–500

(baud)

		internal functions from here
	*/
	async buildSerial(baud) {
		if (this.#serial) {
			this.#serial.close();
			this.#serial = undefined;
		}

		return new Promise((resolve, reject) => {
			this.#serial = new Serial({
				...this.#serialOptions,
				baud,
				device: this.#device,
				onWritable(count) {
					if (resolve)
						resolve(true);
					resolve = reject = undefined;

					this.flash.#writeSpaceAvailable = count;
					if (this.flash.#writable) {
						this.flash.#writable(true);
						this.flash.#writable = undefined;
					}
				},
				onReadable() {
					if (this.flash.#readable) {
						this.flash.#readable(true);
						this.flash.#readable = undefined;
					}
				},
				onError() {
					if (reject) {
						reject(-1);
						resolve = reject = undefined;
					}
				}
			});
			this.#serial.format = "buffer";
			this.#serial.flash = this;
		});
	}
	async downloadToMemory(data, offset, entry) {
		const byteLength = data.byteLength;
		const ESP_RAM_BLOCK = 6 * 1024;