665 lines
28 KiB
JavaScript
665 lines
28 KiB
JavaScript
/*
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STM32 F103 serial bus seems to properly initialize with quite a huge auto-baud range
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From 921600 down to 1200, i don't recommend getting any lower then that
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Official "specs" are from 115200 to 1200
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*/
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var STM32_protocol = function() {
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this.hex; // ref
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this.verify_hex;
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this.receive_buffer;
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this.bytes_to_read = 0; // ref
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this.read_callback; // ref
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this.upload_time_start;
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this.upload_process_alive;
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this.status = {
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ACK: 0x79, // y
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NACK: 0x1F
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};
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this.command = {
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get: 0x00, // Gets the version and the allowed commands supported by the current version of the bootloader
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get_ver_r_protect_s: 0x01, // Gets the bootloader version and the Read Protection status of the Flash memory
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get_ID: 0x02, // Gets the chip ID
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read_memory: 0x11, // Reads up to 256 bytes of memory starting from an address specified by the application
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go: 0x21, // Jumps to user application code located in the internal Flash memory or in SRAM
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write_memory: 0x31, // Writes up to 256 bytes to the RAM or Flash memory starting from an address specified by the application
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erase: 0x43, // Erases from one to all the Flash memory pages
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extended_erase: 0x44, // Erases from one to all the Flash memory pages using two byte addressing mode (v3.0+ usart).
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write_protect: 0x63, // Enables the write protection for some sectors
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write_unprotect: 0x73, // Disables the write protection for all Flash memory sectors
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readout_protect: 0x82, // Enables the read protection
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readout_unprotect: 0x92 // Disables the read protection
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};
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// Erase (x043) and Extended Erase (0x44) are exclusive. A device may support either the Erase command or the Extended Erase command but not both.
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this.available_flash_size = 0;
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this.page_size = 0;
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};
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// string = string .. duh
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STM32_protocol.prototype.GUI_status = function(string) {
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$('span.status').html(string);
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};
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// no input parameters
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STM32_protocol.prototype.connect = function(hex) {
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var self = this;
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self.hex = hex;
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var selected_port = String($('div#port-picker .port select').val());
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var baud = parseInt($('div#port-picker #baud').val());
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if (selected_port != '0') {
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// popular choices - 921600, 460800, 256000, 230400, 153600, 128000, 115200, 57600, 38400, 28800, 19200
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var flashing_bitrate;
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switch (GUI.operating_system) {
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case 'Windows':
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flashing_bitrate = 921600;
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break;
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case 'MacOS':
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flashing_bitrate = 921600;
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break;
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case 'ChromeOS':
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case 'Linux':
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case 'UNIX':
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flashing_bitrate = 921600;
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break;
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default:
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flashing_bitrate = 115200;
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}
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if (!$('input.updating').is(':checked')) {
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serial.connect(selected_port, {bitrate: baud}, function(openInfo) {
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if (openInfo) {
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console.log('Sending ascii "R" to reboot');
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// we are connected, disabling connect button in the UI
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GUI.connect_lock = true;
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var bufferOut = new ArrayBuffer(1);
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var bufferView = new Uint8Array(bufferOut);
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bufferView[0] = 0x52;
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serial.send(bufferOut, function() {
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serial.disconnect(function(result) {
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if (result) {
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serial.connect(selected_port, {bitrate: flashing_bitrate, parityBit: 'even', stopBits: 'one'}, function(openInfo) {
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if (openInfo) {
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self.initialize();
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} else {
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GUI.log('<span style="color: red">Failed</span> to open serial port');
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}
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});
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} else {
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GUI.connect_lock = false;
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}
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});
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});
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} else {
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GUI.log('<span style="color: red">Failed</span> to open serial port');
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}
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});
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} else {
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serial.connect(selected_port, {bitrate: flashing_bitrate, parityBit: 'even', stopBits: 'one'}, function(openInfo) {
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if (openInfo) {
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// we are connected, disabling connect button in the UI
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GUI.connect_lock = true;
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self.initialize();
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} else {
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GUI.log('<span style="color: red">Failed</span> to open serial port');
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}
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});
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}
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} else {
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console.log('Please select valid serial port');
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STM32.GUI_status('<span style="color: red">Please select valid serial port</span>');
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}
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};
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// initialize certain variables and start timers that oversee the communication
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STM32_protocol.prototype.initialize = function() {
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var self = this;
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// reset and set some variables before we start
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self.receive_buffer = [];
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self.verify_hex = [];
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self.upload_time_start = microtime();
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self.upload_process_alive = false;
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// reset progress bar to initial state
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self.progress_bar_e = $('.progress');
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self.progress_bar_e.val(0);
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self.progress_bar_e.removeClass('valid invalid');
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serial.onReceive.addListener(function(info) {
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self.read(info);
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});
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GUI.interval_add('STM32_timeout', function() {
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if (self.upload_process_alive) { // process is running
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self.upload_process_alive = false;
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} else {
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console.log('STM32 - timed out, programming failed ...');
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STM32.GUI_status('STM32 - timed out, programming: <strong style="color: red">FAILED</strong>');
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// protocol got stuck, clear timer and disconnect
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GUI.interval_remove('STM32_timeout');
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// exit
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self.upload_procedure(99);
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}
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}, 1000);
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self.upload_procedure(1);
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};
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// no input parameters
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// this method should be executed every 1 ms via interval timer
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STM32_protocol.prototype.read = function(readInfo) {
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// routine that fills the buffer
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var data = new Uint8Array(readInfo.data);
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for (var i = 0; i < data.length; i++) {
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this.receive_buffer.push(data[i]);
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}
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// routine that fetches data from buffer if statement is true
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if (this.receive_buffer.length >= this.bytes_to_read && this.bytes_to_read != 0) {
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var data = this.receive_buffer.slice(0, this.bytes_to_read); // bytes requested
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this.receive_buffer.splice(0, this.bytes_to_read); // remove read bytes
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this.bytes_to_read = 0; // reset trigger
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this.read_callback(data);
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}
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};
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// we should always try to consume all "proper" available data while using retrieve
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STM32_protocol.prototype.retrieve = function(n_bytes, callback) {
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if (this.receive_buffer.length >= n_bytes) {
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// data that we need are there, process immediately
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var data = this.receive_buffer.slice(0, n_bytes);
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this.receive_buffer.splice(0, n_bytes); // remove read bytes
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callback(data);
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} else {
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// still waiting for data, add callback
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this.bytes_to_read = n_bytes;
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this.read_callback = callback;
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}
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};
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// Array = array of bytes that will be send over serial
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// bytes_to_read = received bytes necessary to trigger read_callback
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// callback = function that will be executed after received bytes = bytes_to_read
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STM32_protocol.prototype.send = function(Array, bytes_to_read, callback) {
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// flip flag
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this.upload_process_alive = true;
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var bufferOut = new ArrayBuffer(Array.length);
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var bufferView = new Uint8Array(bufferOut);
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// set Array values inside bufferView (alternative to for loop)
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bufferView.set(Array);
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// update references
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this.bytes_to_read = bytes_to_read;
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this.read_callback = callback;
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// empty receive buffer before next command is out
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this.receive_buffer = [];
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// send over the actual data
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serial.send(bufferOut, function(writeInfo) {});
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};
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// val = single byte to be verified
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// data = response of n bytes from mcu (array)
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// result = true/false
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STM32_protocol.prototype.verify_response = function(val, data) {
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if (val != data[0]) {
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console.log('STM32 Communication failed, wrong response, expected: ' + val + ' received: ' + data[0]);
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STM32.GUI_status('STM32 Communication <span style="color: red">failed</span>, wrong response, expected: ' + val + ' received: ' + data[0]);
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// disconnect
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this.upload_procedure(99);
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return false;
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}
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return true;
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};
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// input = 16 bit value
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// result = true/false
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STM32_protocol.prototype.verify_chip_signature = function(signature) {
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switch (signature) {
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case 0x412: // not tested
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console.log('Chip recognized as F1 Low-density');
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break;
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case 0x410:
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console.log('Chip recognized as F1 Medium-density');
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this.available_flash_size = 131072;
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this.page_size = 1024;
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break;
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case 0x414: // not tested
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console.log('Chip recognized as F1 High-density');
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break;
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case 0x418: // not tested
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console.log('Chip recognized as F1 Connectivity line');
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break;
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case 0x420: // not tested
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console.log('Chip recognized as F1 Medium-density value line');
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break;
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case 0x428: // not tested
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console.log('Chip recognized as F1 High-density value line');
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break;
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case 0x430: // not tested
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console.log('Chip recognized as F1 XL-density value line');
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break;
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case 0x416: // not tested
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console.log('Chip recognized as L1 Medium-density ultralow power');
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break;
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case 0x436: // not tested
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console.log('Chip recognized as L1 High-density ultralow power');
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break;
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case 0x427: // not tested
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console.log('Chip recognized as L1 Medium-density plus ultralow power');
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break;
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case 0x411: // not tested
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console.log('Chip recognized as F2 STM32F2xxxx');
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break;
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case 0x440: // not tested
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console.log('Chip recognized as F0 STM32F051xx');
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break;
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case 0x444: // not tested
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console.log('Chip recognized as F0 STM32F050xx');
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break;
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case 0x413: // not tested
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console.log('Chip recognized as F4 STM32F40xxx/41xxx');
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break;
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case 0x419: // not tested
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console.log('Chip recognized as F4 STM32F427xx/437xx, STM32F429xx/439xx');
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break;
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case 0x432: // not tested
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console.log('Chip recognized as F3 STM32F37xxx, STM32F38xxx');
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break;
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case 0x422: // not tested
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console.log('Chip recognized as F3 STM32F30xxx, STM32F31xxx');
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break;
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}
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if (this.available_flash_size > 0) {
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if (this.hex.bytes_total < this.available_flash_size) {
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return true;
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} else {
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console.log('Supplied hex is bigger then flash available on the chip, HEX: ' + this.hex.bytes_total + ' bytes, limit = ' + this.available_flash_size + ' bytes');
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return false;
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}
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}
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console.log('Chip NOT recognized: ' + signature);
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return false;
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};
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// first_array = usually hex_to_flash array
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// second_array = usually verify_hex array
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// result = true/false
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STM32_protocol.prototype.verify_flash = function(first_array, second_array) {
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for (var i = 0; i < first_array.length; i++) {
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if (first_array[i] != second_array[i]) {
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console.log('Verification failed on byte: ' + i + ' expected: 0x' + first_array[i].toString(16) + ' received: 0x' + second_array[i].toString(16));
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return false;
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}
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}
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console.log('Verification successful, matching: ' + first_array.length + ' bytes');
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return true;
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};
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// step = value depending on current state of upload_procedure
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STM32_protocol.prototype.upload_procedure = function(step) {
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var self = this;
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switch (step) {
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case 1:
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// initialize serial interface on the MCU side, auto baud rate settings
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var send_counter = 0;
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GUI.interval_add('stm32_initialize_mcu', function() { // 200 ms interval (just in case mcu was already initialized), we need to break the 2 bytes command requirement
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self.send([0x7F], 1, function(reply) {
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if (reply[0] == 0x7F || reply[0] == self.status.ACK || reply[0] == self.status.NACK) {
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GUI.interval_remove('stm32_initialize_mcu');
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console.log('STM32 - Serial interface initialized on the MCU side');
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// proceed to next step
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self.upload_procedure(2);
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} else {
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GUI.interval_remove('stm32_initialize_mcu');
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STM32.GUI_status('STM32 Communication with bootloader <span style="color: red">failed</span>');
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// disconnect
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self.upload_procedure(99);
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}
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});
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if (send_counter++ > 3) {
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// stop retrying, its too late to get any response from MCU
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GUI.interval_remove('stm32_initialize_mcu');
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}
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}, 200, true);
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break;
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case 2:
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// get version of the bootloader and supported commands
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self.send([self.command.get, 0xFF], 2, function(data) { // 0x00 ^ 0xFF
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if (self.verify_response(self.status.ACK, data)) {
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self.retrieve(data[1] + 1 + 1, function(data) { // data[1] = number of bytes that will follow [– 1 except current and ACKs]
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console.log('STM32 - Bootloader version: ' + (parseInt(data[0].toString(16)) / 10).toFixed(1)); // convert dec to hex, hex to dec and add floating point
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// proceed to next step
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self.upload_procedure(3);
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});
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}
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});
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break;
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case 3:
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// get ID (device signature)
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self.send([self.command.get_ID, 0xFD], 2, function(data) { // 0x01 ^ 0xFF
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if (self.verify_response(self.status.ACK, data)) {
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self.retrieve(data[1] + 1 + 1, function(data) { // data[1] = number of bytes that will follow [– 1 (N = 1 for STM32), except for current byte and ACKs]
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var signature = (data[0] << 8) | data[1];
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console.log('STM32 - Signature: 0x' + signature.toString(16)); // signature in hex representation
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if (self.verify_chip_signature(signature)) {
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// proceed to next step
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self.upload_procedure(4);
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} else {
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// disconnect
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self.upload_procedure(99);
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}
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});
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}
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});
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break;
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case 4:
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// erase memory
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if (!$('input.erase_chip').is(':checked')) {
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// EXPERIMENTAL
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console.log('Executing local erase (only needed pages)');
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STM32.GUI_status('Erasing');
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self.send([self.command.erase, 0xBC], 1, function(reply) { // 0x43 ^ 0xFF
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if (self.verify_response(self.status.ACK, reply)) {
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// the bootloader receives one byte that contains N, the number of pages to be erased – 1
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var max_address = self.hex.data[self.hex.data.length - 1].address + self.hex.data[self.hex.data.length - 1].bytes - 0x8000000;
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var erase_pages_n = Math.ceil(max_address / self.page_size);
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var buff = [];
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buff.push(erase_pages_n - 1);
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var checksum = buff[0];
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for (var i = 0; i < erase_pages_n; i++) {
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buff.push(i);
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checksum ^= i;
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}
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buff.push(checksum);
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self.send(buff, 1, function(reply) {
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if (self.verify_response(self.status.ACK, reply)) {
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console.log('Erasing: done');
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console.log('Writing data ...');
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STM32.GUI_status('<span style="color: green">Flashing ...</span>');
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// proceed to next step
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self.upload_procedure(5);
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}
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});
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}
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});
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} else {
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console.log('Executing global chip erase');
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STM32.GUI_status('Erasing');
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self.send([self.command.erase, 0xBC], 1, function(reply) { // 0x43 ^ 0xFF
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if (self.verify_response(self.status.ACK, reply)) {
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self.send([0xFF, 0x00], 1, function(reply) {
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if (self.verify_response(self.status.ACK, reply)) {
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console.log('Erasing: done');
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console.log('Writing data ...');
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STM32.GUI_status('<span style="color: green">Flashing ...</span>');
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// proceed to next step
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self.upload_procedure(5);
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}
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});
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}
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});
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}
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break;
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case 5:
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// upload
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var blocks = self.hex.data.length - 1;
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var flashing_block = 0;
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var address = self.hex.data[flashing_block].address;
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var bytes_flashed = 0;
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var bytes_flashed_total = 0; // used for progress bar
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function write() {
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if (bytes_flashed < self.hex.data[flashing_block].bytes) {
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var bytes_to_write = ((bytes_flashed + 256) <= self.hex.data[flashing_block].bytes) ? 256 : (self.hex.data[flashing_block].bytes - bytes_flashed);
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// console.log('STM32 - Writing to: 0x' + address.toString(16) + ', ' + bytes_to_write + ' bytes');
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self.send([self.command.write_memory, 0xCE], 1, function(reply) { // 0x31 ^ 0xFF
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if (self.verify_response(self.status.ACK, reply)) {
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// address needs to be transmitted as 32 bit integer, we need to bit shift each byte out and then calculate address checksum
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var address_arr = [(address >> 24), (address >> 16), (address >> 8), address];
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var address_checksum = address_arr[0] ^ address_arr[1] ^ address_arr[2] ^ address_arr[3];
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self.send([address_arr[0], address_arr[1], address_arr[2], address_arr[3], address_checksum], 1, function(reply) { // write start address + checksum
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if (self.verify_response(self.status.ACK, reply)) {
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var array_out = new Array(bytes_to_write + 2); // 2 byte overhead [N, ...., checksum]
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array_out[0] = bytes_to_write - 1; // number of bytes to be written (to write 128 bytes, N must be 127, to write 256 bytes, N must be 255)
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var checksum = array_out[0];
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for (var i = 0; i < bytes_to_write; i++) {
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array_out[i + 1] = self.hex.data[flashing_block].data[bytes_flashed]; // + 1 because of the first byte offset
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checksum ^= self.hex.data[flashing_block].data[bytes_flashed];
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bytes_flashed++;
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}
|
||
array_out[array_out.length - 1] = checksum; // checksum (last byte in the array_out array)
|
||
|
||
address += bytes_to_write;
|
||
bytes_flashed_total += bytes_to_write;
|
||
|
||
self.send(array_out, 1, function(reply) {
|
||
if (self.verify_response(self.status.ACK, reply)) {
|
||
// update progress bar
|
||
self.progress_bar_e.val(bytes_flashed_total / (self.hex.bytes_total * 2) * 100);
|
||
|
||
// flash another page
|
||
write();
|
||
}
|
||
});
|
||
}
|
||
});
|
||
}
|
||
});
|
||
} else {
|
||
// move to another block
|
||
if (flashing_block < blocks) {
|
||
flashing_block++;
|
||
|
||
address = self.hex.data[flashing_block].address;
|
||
bytes_flashed = 0;
|
||
|
||
write();
|
||
} else {
|
||
// all blocks flashed
|
||
console.log('Writing: done');
|
||
console.log('Verifying data ...');
|
||
STM32.GUI_status('<span style="color: green">Verifying ...</span>');
|
||
|
||
// proceed to next step
|
||
self.upload_procedure(6);
|
||
}
|
||
}
|
||
}
|
||
|
||
// start writing
|
||
write();
|
||
break;
|
||
case 6:
|
||
// verify
|
||
var blocks = self.hex.data.length - 1;
|
||
var reading_block = 0;
|
||
var address = self.hex.data[reading_block].address;
|
||
|
||
var bytes_verified = 0;
|
||
var bytes_verified_total = 0; // used for progress bar
|
||
|
||
// initialize arrays
|
||
for (var i = 0; i <= blocks; i++) {
|
||
self.verify_hex.push([]);
|
||
}
|
||
|
||
function reading() {
|
||
if (bytes_verified < self.hex.data[reading_block].bytes) {
|
||
var bytes_to_read = ((bytes_verified + 256) <= self.hex.data[reading_block].bytes) ? 256 : (self.hex.data[reading_block].bytes - bytes_verified);
|
||
|
||
// console.log('STM32 - Reading from: 0x' + address.toString(16) + ', ' + bytes_to_read + ' bytes');
|
||
|
||
self.send([self.command.read_memory, 0xEE], 1, function(reply) { // 0x11 ^ 0xFF
|
||
if (self.verify_response(self.status.ACK, reply)) {
|
||
var address_arr = [(address >> 24), (address >> 16), (address >> 8), address];
|
||
var address_checksum = address_arr[0] ^ address_arr[1] ^ address_arr[2] ^ address_arr[3];
|
||
|
||
self.send([address_arr[0], address_arr[1], address_arr[2], address_arr[3], address_checksum], 1, function(reply) { // read start address + checksum
|
||
if (self.verify_response(self.status.ACK, reply)) {
|
||
var bytes_to_read_n = bytes_to_read - 1;
|
||
|
||
self.send([bytes_to_read_n, (~bytes_to_read_n) & 0xFF], 1, function(reply) { // bytes to be read + checksum XOR(complement of bytes_to_read_n)
|
||
if (self.verify_response(self.status.ACK, reply)) {
|
||
self.retrieve(bytes_to_read, function(data) {
|
||
for (var i = 0; i < data.length; i++) {
|
||
self.verify_hex[reading_block].push(data[i]);
|
||
}
|
||
|
||
address += bytes_to_read;
|
||
bytes_verified += bytes_to_read;
|
||
bytes_verified_total += bytes_to_read;
|
||
|
||
// update progress bar
|
||
self.progress_bar_e.val((self.hex.bytes_total + bytes_verified_total) / (self.hex.bytes_total * 2) * 100);
|
||
|
||
// verify another page
|
||
reading();
|
||
});
|
||
}
|
||
});
|
||
}
|
||
});
|
||
}
|
||
});
|
||
} else {
|
||
// move to another block
|
||
if (reading_block < blocks) {
|
||
reading_block++;
|
||
|
||
address = self.hex.data[reading_block].address;
|
||
bytes_verified = 0;
|
||
|
||
reading();
|
||
} else {
|
||
// all blocks read, verify
|
||
|
||
var verify = true;
|
||
for (var i = 0; i <= blocks; i++) {
|
||
verify = self.verify_flash(self.hex.data[i].data, self.verify_hex[i]);
|
||
|
||
if (!verify) break;
|
||
}
|
||
|
||
if (verify) {
|
||
console.log('Programming: SUCCESSFUL');
|
||
STM32.GUI_status('Programming: <strong style="color: green">SUCCESSFUL</strong>');
|
||
|
||
// update progress bar
|
||
self.progress_bar_e.addClass('valid');
|
||
|
||
// proceed to next step
|
||
self.upload_procedure(7);
|
||
} else {
|
||
console.log('Programming: FAILED');
|
||
STM32.GUI_status('Programming: <strong style="color: red">FAILED</strong>');
|
||
|
||
// update progress bar
|
||
self.progress_bar_e.addClass('invalid');
|
||
|
||
// disconnect
|
||
self.upload_procedure(99);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
// start reading
|
||
reading();
|
||
break;
|
||
case 7:
|
||
// go
|
||
// memory address = 4 bytes, 1st high byte, 4th low byte, 5th byte = checksum XOR(byte 1, byte 2, byte 3, byte 4)
|
||
console.log('Sending GO command: 0x8000000');
|
||
|
||
self.send([self.command.go, 0xDE], 1, function(reply) { // 0x21 ^ 0xFF
|
||
if (self.verify_response(self.status.ACK, reply)) {
|
||
var gt_address = 0x8000000;
|
||
var address = [(gt_address >> 24), (gt_address >> 16), (gt_address >> 8), gt_address];
|
||
var address_checksum = address[0] ^ address[1] ^ address[2] ^ address[3];
|
||
|
||
self.send([address[0], address[1], address[2], address[3], address_checksum], 1, function(reply) {
|
||
if (self.verify_response(self.status.ACK, reply)) {
|
||
// disconnect
|
||
self.upload_procedure(99);
|
||
}
|
||
});
|
||
}
|
||
});
|
||
break;
|
||
case 99:
|
||
// disconnect
|
||
GUI.interval_remove('STM32_timeout'); // stop STM32 timeout timer (everything is finished now)
|
||
|
||
console.log('Script finished after: ' + (microtime() - self.upload_time_start).toFixed(4) + ' seconds');
|
||
|
||
// close connection
|
||
serial.disconnect(function(result) {
|
||
if (result) { // All went as expected
|
||
} else { // Something went wrong
|
||
}
|
||
|
||
PortUsage.reset();
|
||
|
||
// unlocking connect button
|
||
GUI.connect_lock = false;
|
||
});
|
||
break;
|
||
}
|
||
};
|
||
|
||
// initialize object
|
||
var STM32 = new STM32_protocol(); |