2 * Copyright © 2010 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
19 package org.altusmetrum.altoslib_12;
23 public class AltosFlash extends AltosProgrammer {
25 FileInputStream input;
29 AltosRomconfig rom_config;
31 AltosFlashListener listener;
33 static final byte MOV_direct_data = (byte) 0x75;
34 static final byte MOV_DPTR_data16 = (byte) 0x90;
35 static final byte MOV_A_data = (byte) 0x74;
36 static final byte MOVX_atDPTR_A = (byte) 0xf0;
37 static final byte MOVX_A_atDPTR = (byte) 0xe0;
38 static final byte INC_DPTR = (byte) 0xa3;
39 static final byte TRAP = (byte) 0xa5;
41 static final byte JB = (byte) 0x20;
43 static final byte MOV_A_direct = (byte) 0xe5;
44 static final byte MOV_direct1_direct2 = (byte) 0x85;
45 static final byte MOV_direct_A = (byte) 0xf5;
46 static final byte MOV_R0_data = (byte) (0x78 | 0);
47 static final byte MOV_R1_data = (byte) (0x78 | 1);
48 static final byte MOV_R2_data = (byte) (0x78 | 2);
49 static final byte MOV_R3_data = (byte) (0x78 | 3);
50 static final byte MOV_R4_data = (byte) (0x78 | 4);
51 static final byte MOV_R5_data = (byte) (0x78 | 5);
52 static final byte MOV_R6_data = (byte) (0x78 | 6);
53 static final byte MOV_R7_data = (byte) (0x78 | 7);
54 static final byte DJNZ_R0_rel = (byte) (0xd8 | 0);
55 static final byte DJNZ_R1_rel = (byte) (0xd8 | 1);
56 static final byte DJNZ_R2_rel = (byte) (0xd8 | 2);
57 static final byte DJNZ_R3_rel = (byte) (0xd8 | 3);
58 static final byte DJNZ_R4_rel = (byte) (0xd8 | 4);
59 static final byte DJNZ_R5_rel = (byte) (0xd8 | 5);
60 static final byte DJNZ_R6_rel = (byte) (0xd8 | 6);
61 static final byte DJNZ_R7_rel = (byte) (0xd8 | 7);
63 static final byte P1DIR = (byte) 0xFE;
64 static final byte P1 = (byte) 0x90;
66 /* flash controller */
67 static final byte FWT = (byte) 0xAB;
68 static final byte FADDRL = (byte) 0xAC;
69 static final byte FADDRH = (byte) 0xAD;
70 static final byte FCTL = (byte) 0xAE;
71 static final byte FCTL_BUSY = (byte) 0x80;
72 static final byte FCTL_BUSY_BIT = (byte) 7;
73 static final byte FCTL_SWBSY = (byte) 0x40;
74 static final byte FCTL_SWBSY_BIT = (byte) 6;
75 static final byte FCTL_CONTRD = (byte) 0x10;
76 static final byte FCTL_WRITE = (byte) 0x02;
77 static final byte FCTL_ERASE = (byte) 0x01;
78 static final byte FWDATA = (byte) 0xAF;
80 static final byte ACC = (byte) 0xE0;
82 /* offsets within the flash_page program */
83 static final int FLASH_ADDR_HIGH = 8;
84 static final int FLASH_ADDR_LOW = 11;
85 static final int RAM_ADDR_HIGH = 13;
86 static final int RAM_ADDR_LOW = 14;
87 static final int FLASH_WORDS_HIGH = 16;
88 static final int FLASH_WORDS_LOW = 18;
89 static final int FLASH_TIMING = 21;
91 /* sleep mode control */
92 static final int SLEEP = (byte) 0xbe;
93 static final int SLEEP_USB_EN = (byte) 0x80;
94 static final int SLEEP_XOSC_STB = (byte) 0x40;
95 static final int SLEEP_HFRC_STB = (byte) 0x20;
96 static final int SLEEP_RST_MASK = (byte) 0x18;
97 static final int SLEEP_RST_POWERON = (byte) 0x00;
98 static final int SLEEP_RST_EXTERNAL = (byte) 0x10;
99 static final int SLEEP_RST_WATCHDOG = (byte) 0x08;
100 static final int SLEEP_OSC_PD = (byte) 0x04;
101 static final int SLEEP_MODE_MASK = (byte) 0x03;
102 static final int SLEEP_MODE_PM0 = (byte) 0x00;
103 static final int SLEEP_MODE_PM1 = (byte) 0x01;
104 static final int SLEEP_MODE_PM2 = (byte) 0x02;
105 static final int SLEEP_MODE_PM3 = (byte) 0x03;
107 /* clock controller */
108 static final byte CLKCON = (byte) 0xC6;
109 static final byte CLKCON_OSC32K = (byte) 0x80;
110 static final byte CLKCON_OSC = (byte) 0x40;
111 static final byte CLKCON_TICKSPD = (byte) 0x38;
112 static final byte CLKCON_CLKSPD = (byte) 0x07;
114 static final byte[] flash_page_proto = {
116 MOV_direct_data, P1DIR, (byte) 0x02,
117 MOV_direct_data, P1, (byte) 0xFF,
119 MOV_direct_data, FADDRH, 0, /* FLASH_ADDR_HIGH */
121 MOV_direct_data, FADDRL, 0, /* FLASH_ADDR_LOW */
123 MOV_DPTR_data16, 0, 0, /* RAM_ADDR_HIGH, RAM_ADDR_LOW */
125 MOV_R7_data, 0, /* FLASH_WORDS_HIGH */
127 MOV_R6_data, 0, /* FLASH_WORDS_LOW */
130 MOV_direct_data, FWT, 0x20, /* FLASH_TIMING */
132 MOV_direct_data, FCTL, FCTL_ERASE,
135 JB, ACC|FCTL_BUSY_BIT, (byte) 0xfb,
137 MOV_direct_data, P1, (byte) 0xfd,
139 MOV_direct_data, FCTL, FCTL_WRITE,
145 MOV_direct_A, FWDATA,
146 DJNZ_R5_rel, (byte) 0xfa, /* writeWordLoop */
149 JB, ACC|FCTL_SWBSY_BIT, (byte) 0xfb, /* writeWaitLoop */
150 DJNZ_R6_rel, (byte) 0xf1, /* writeLoop */
151 DJNZ_R7_rel, (byte) 0xef, /* writeLoop */
153 MOV_direct_data, P1DIR, (byte) 0x00,
154 MOV_direct_data, P1, (byte) 0xFF,
158 public byte[] make_flash_page(int flash_addr, int ram_addr, int byte_count) {
159 int flash_word_addr = flash_addr >> 1;
160 int flash_word_count = ((byte_count + 1) >> 1);
162 byte[] flash_page = new byte[flash_page_proto.length];
163 for (int i = 0; i < flash_page.length; i++)
164 flash_page[i] = flash_page_proto[i];
166 flash_page[FLASH_ADDR_HIGH] = (byte) (flash_word_addr >> 8);
167 flash_page[FLASH_ADDR_LOW] = (byte) (flash_word_addr);
168 flash_page[RAM_ADDR_HIGH] = (byte) (ram_addr >> 8);
169 flash_page[RAM_ADDR_LOW] = (byte) (ram_addr);
171 byte flash_words_low = (byte) (flash_word_count);
172 byte flash_words_high = (byte) (flash_word_count >> 8);
173 /* the flashing code has a minor 'bug' */
174 if (flash_words_low != 0)
177 flash_page[FLASH_WORDS_HIGH] = (byte) flash_words_high;
178 flash_page[FLASH_WORDS_LOW] = (byte) flash_words_low;
182 static byte[] set_clkcon_fast = {
183 MOV_direct_data, CLKCON, 0x00
186 static byte[] get_sleep = {
190 public void clock_init() throws IOException, InterruptedException {
192 debug.debug_instr(set_clkcon_fast);
195 for (int times = 0; times < 20; times++) {
197 status = debug.debug_instr(get_sleep);
198 if ((status & SLEEP_XOSC_STB) != 0)
201 throw new IOException("Failed to initialize target clock");
205 void action(String s, int percent) {
206 if (listener != null && !aborted)
207 listener.position(s, percent);
210 void action(int part, int total) {
211 int percent = 100 * part / total;
212 action(String.format("%d/%d (%d%%)",
213 part, total, percent),
217 void altos_run(int pc) throws IOException, InterruptedException {
219 int set_pc = debug.get_pc();
221 throw new IOException("Failed to set target program counter");
224 for (int times = 0; times < 20; times++) {
225 byte status = debug.read_status();
226 if ((status & AltosDebug.STATUS_CPU_HALTED) != 0)
230 throw new IOException("Failed to execute program on target");
233 public void flash() {
235 if (!check_rom_config())
236 throw new IOException("Invalid rom config settings");
237 if (image.address + image.data.length > 0x8000)
238 throw new IOException(String.format("Flash image too long %d",
241 if ((image.address & 0x3ff) != 0)
242 throw new IOException(String.format("Flash image must start on page boundary (is 0x%x)",
244 int ram_address = 0xf000;
245 int flash_prog = 0xf400;
248 * Store desired config values into image
250 rom_config.write(image);
256 int remain = image.data.length;
257 int flash_addr = (int) image.address;
261 action(0, image.data.length);
262 while (remain > 0 && !aborted) {
263 int this_time = remain;
264 if (this_time > 0x400)
269 debug.write_memory(ram_address, image.data,
270 image_start, this_time);
272 /* write the flash program */
273 byte[] flash_page = make_flash_page(flash_addr,
276 debug.write_memory(flash_prog, flash_page);
278 altos_run(flash_prog);
279 byte[] check = debug.read_memory(flash_addr, this_time);
280 for (int i = 0; i < this_time; i++)
281 if (check[i] != image.data[image_start + i])
282 throw new IOException(String.format("Flash write failed at 0x%x (%02x != %02x)",
283 image.address + image_start + i,
284 check[i], image.data[image_start + i]));
290 flash_addr += this_time;
291 image_start += this_time;
293 action(image.data.length - remain, image.data.length);
298 debug.set_pc((int) image.address);
304 } catch (IOException ie) {
305 action(ie.getMessage(), -1);
307 } catch (InterruptedException ie) {
312 public void close() {
317 synchronized public void abort() {
322 public boolean check_rom_config() throws InterruptedException {
325 if (rom_config == null)
326 rom_config = debug.romconfig();
327 return rom_config != null && rom_config.valid();
330 public void set_romconfig (AltosRomconfig romconfig) {
331 rom_config = romconfig;
334 public AltosRomconfig target_romconfig() throws InterruptedException {
335 if (!check_rom_config())
340 public AltosRomconfig image_romconfig() {
341 return new AltosRomconfig(image);
344 public AltosFlash(File file, AltosLink link, AltosFlashListener listener)
345 throws IOException, FileNotFoundException, InterruptedException {
348 this.listener = listener;
350 debug = new AltosDebug(link);
351 input = new FileInputStream(file);
352 image = new AltosHexfile(input);
354 boolean connection_ok = true;
358 connection_ok = debug.check_connection();
359 } catch (IOException ie) {
362 } catch (InterruptedException ie) {
367 if (!connection_ok) {
369 throw new IOException("Debug port not connected");