107 lines
3.4 KiB
JavaScript
107 lines
3.4 KiB
JavaScript
import { ROM } from "./rom.js";
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import ESP32S2_STUB from "./stub_flasher/stub_flasher_32s2.json";
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export class ESP32S2ROM extends ROM {
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constructor() {
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super(...arguments);
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this.CHIP_NAME = "ESP32-S2";
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this.IMAGE_CHIP_ID = 2;
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this.MAC_EFUSE_REG = 0x3f41a044;
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this.EFUSE_BASE = 0x3f41a000;
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this.UART_CLKDIV_REG = 0x3f400014;
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this.UART_CLKDIV_MASK = 0xfffff;
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this.UART_DATE_REG_ADDR = 0x60000078;
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this.FLASH_WRITE_SIZE = 0x400;
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this.BOOTLOADER_FLASH_OFFSET = 0x1000;
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this.FLASH_SIZES = {
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"1MB": 0x00,
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"2MB": 0x10,
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"4MB": 0x20,
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"8MB": 0x30,
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"16MB": 0x40,
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};
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this.SPI_REG_BASE = 0x3f402000;
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this.SPI_USR_OFFS = 0x18;
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this.SPI_USR1_OFFS = 0x1c;
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this.SPI_USR2_OFFS = 0x20;
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this.SPI_W0_OFFS = 0x58;
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this.SPI_MOSI_DLEN_OFFS = 0x24;
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this.SPI_MISO_DLEN_OFFS = 0x28;
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this.TEXT_START = ESP32S2_STUB.text_start;
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this.ENTRY = ESP32S2_STUB.entry;
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this.DATA_START = ESP32S2_STUB.data_start;
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this.ROM_DATA = ESP32S2_STUB.data;
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this.ROM_TEXT = ESP32S2_STUB.text;
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}
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async getPkgVersion(loader) {
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const numWord = 3;
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const block1Addr = this.EFUSE_BASE + 0x044;
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const addr = block1Addr + 4 * numWord;
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const word3 = await loader.readReg(addr);
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const pkgVersion = (word3 >> 21) & 0x0f;
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return pkgVersion;
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}
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async getChipDescription(loader) {
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const chipDesc = ["ESP32-S2", "ESP32-S2FH16", "ESP32-S2FH32"];
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const pkgVer = await this.getPkgVersion(loader);
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if (pkgVer >= 0 && pkgVer <= 2) {
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return chipDesc[pkgVer];
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}
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else {
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return "unknown ESP32-S2";
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}
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}
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async getChipFeatures(loader) {
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const features = ["Wi-Fi"];
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const pkgVer = await this.getPkgVersion(loader);
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if (pkgVer == 1) {
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features.push("Embedded 2MB Flash");
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}
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else if (pkgVer == 2) {
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features.push("Embedded 4MB Flash");
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}
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const numWord = 4;
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const block2Addr = this.EFUSE_BASE + 0x05c;
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const addr = block2Addr + 4 * numWord;
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const word4 = await loader.readReg(addr);
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const block2Ver = (word4 >> 4) & 0x07;
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if (block2Ver == 1) {
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features.push("ADC and temperature sensor calibration in BLK2 of efuse");
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}
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return features;
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}
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async getCrystalFreq(loader) {
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return 40;
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}
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_d2h(d) {
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const h = (+d).toString(16);
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return h.length === 1 ? "0" + h : h;
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}
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async readMac(loader) {
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let mac0 = await loader.readReg(this.MAC_EFUSE_REG);
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mac0 = mac0 >>> 0;
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let mac1 = await loader.readReg(this.MAC_EFUSE_REG + 4);
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mac1 = (mac1 >>> 0) & 0x0000ffff;
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const mac = new Uint8Array(6);
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mac[0] = (mac1 >> 8) & 0xff;
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mac[1] = mac1 & 0xff;
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mac[2] = (mac0 >> 24) & 0xff;
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mac[3] = (mac0 >> 16) & 0xff;
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mac[4] = (mac0 >> 8) & 0xff;
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mac[5] = mac0 & 0xff;
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return (this._d2h(mac[0]) +
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":" +
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this._d2h(mac[1]) +
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":" +
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this._d2h(mac[2]) +
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":" +
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this._d2h(mac[3]) +
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":" +
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this._d2h(mac[4]) +
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":" +
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this._d2h(mac[5]));
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}
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getEraseSize(offset, size) {
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return size;
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}
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}
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