root / arduino-1.0 / hardware / arduino / bootloaders / optiboot / optiboot_atmega8.lst @ 58d82c77
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optiboot_atmega8.elf: file format elf32-avr |
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|
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Sections: |
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Idx Name Size VMA LMA File off Algn |
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0 .text 000001e0 00001e00 00001e00 00000054 2**1 |
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CONTENTS, ALLOC, LOAD, READONLY, CODE |
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1 .version 00000002 00001ffe 00001ffe 00000234 2**0 |
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CONTENTS, READONLY |
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2 .debug_aranges 00000028 00000000 00000000 00000236 2**0 |
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CONTENTS, READONLY, DEBUGGING |
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3 .debug_pubnames 0000005f 00000000 00000000 0000025e 2**0 |
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CONTENTS, READONLY, DEBUGGING |
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4 .debug_info 000002a6 00000000 00000000 000002bd 2**0 |
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CONTENTS, READONLY, DEBUGGING |
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5 .debug_abbrev 00000169 00000000 00000000 00000563 2**0 |
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CONTENTS, READONLY, DEBUGGING |
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6 .debug_line 00000498 00000000 00000000 000006cc 2**0 |
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CONTENTS, READONLY, DEBUGGING |
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7 .debug_frame 00000080 00000000 00000000 00000b64 2**2 |
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CONTENTS, READONLY, DEBUGGING |
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8 .debug_str 0000014f 00000000 00000000 00000be4 2**0 |
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CONTENTS, READONLY, DEBUGGING |
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9 .debug_loc 000002ba 00000000 00000000 00000d33 2**0 |
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CONTENTS, READONLY, DEBUGGING |
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10 .debug_ranges 00000078 00000000 00000000 00000fed 2**0 |
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CONTENTS, READONLY, DEBUGGING |
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|
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Disassembly of section .text: |
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|
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00001e00 <main>: |
32 |
#define rstVect (*(uint16_t*)(RAMSTART+SPM_PAGESIZE*2+4)) |
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#define wdtVect (*(uint16_t*)(RAMSTART+SPM_PAGESIZE*2+6)) |
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#endif |
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|
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/* main program starts here */ |
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int main(void) { |
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1e00: 11 24 eor r1, r1 |
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// |
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// If not, uncomment the following instructions: |
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// cli(); |
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asm volatile ("clr __zero_reg__"); |
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#ifdef __AVR_ATmega8__ |
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SP=RAMEND; // This is done by hardware reset |
45 |
1e02: 8f e5 ldi r24, 0x5F ; 95 |
46 |
1e04: 94 e0 ldi r25, 0x04 ; 4 |
47 |
1e06: 9e bf out 0x3e, r25 ; 62 |
48 |
1e08: 8d bf out 0x3d, r24 ; 61 |
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#endif |
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|
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// Adaboot no-wait mod |
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ch = MCUSR; |
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1e0a: 84 b7 in r24, 0x34 ; 52 |
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MCUSR = 0; |
55 |
1e0c: 14 be out 0x34, r1 ; 52 |
56 |
if (!(ch & _BV(EXTRF))) appStart(); |
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1e0e: 81 ff sbrs r24, 1 |
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1e10: e2 d0 rcall .+452 ; 0x1fd6 <appStart> |
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|
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#if LED_START_FLASHES > 0 |
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// Set up Timer 1 for timeout counter |
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TCCR1B = _BV(CS12) | _BV(CS10); // div 1024 |
63 |
1e12: 85 e0 ldi r24, 0x05 ; 5 |
64 |
1e14: 8e bd out 0x2e, r24 ; 46 |
65 |
#endif |
66 |
#ifndef SOFT_UART |
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#ifdef __AVR_ATmega8__ |
68 |
UCSRA = _BV(U2X); //Double speed mode USART |
69 |
1e16: 82 e0 ldi r24, 0x02 ; 2 |
70 |
1e18: 8b b9 out 0x0b, r24 ; 11 |
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UCSRB = _BV(RXEN) | _BV(TXEN); // enable Rx & Tx |
72 |
1e1a: 88 e1 ldi r24, 0x18 ; 24 |
73 |
1e1c: 8a b9 out 0x0a, r24 ; 10 |
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UCSRC = _BV(URSEL) | _BV(UCSZ1) | _BV(UCSZ0); // config USART; 8N1 |
75 |
1e1e: 86 e8 ldi r24, 0x86 ; 134 |
76 |
1e20: 80 bd out 0x20, r24 ; 32 |
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UBRRL = (uint8_t)( (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 ); |
78 |
1e22: 80 e1 ldi r24, 0x10 ; 16 |
79 |
1e24: 89 b9 out 0x09, r24 ; 9 |
80 |
UBRR0L = (uint8_t)( (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 ); |
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#endif |
82 |
#endif |
83 |
|
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// Set up watchdog to trigger after 500ms |
85 |
watchdogConfig(WATCHDOG_1S); |
86 |
1e26: 8e e0 ldi r24, 0x0E ; 14 |
87 |
1e28: c2 d0 rcall .+388 ; 0x1fae <watchdogConfig> |
88 |
|
89 |
/* Set LED pin as output */ |
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LED_DDR |= _BV(LED); |
91 |
1e2a: bd 9a sbi 0x17, 5 ; 23 |
92 |
1e2c: 96 e0 ldi r25, 0x06 ; 6 |
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} |
94 |
|
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#if LED_START_FLASHES > 0 |
96 |
void flash_led(uint8_t count) { |
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do { |
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TCNT1 = -(F_CPU/(1024*16)); |
99 |
1e2e: 20 e3 ldi r18, 0x30 ; 48 |
100 |
1e30: 3c ef ldi r19, 0xFC ; 252 |
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TIFR1 = _BV(TOV1); |
102 |
1e32: 54 e0 ldi r21, 0x04 ; 4 |
103 |
while(!(TIFR1 & _BV(TOV1))); |
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#ifdef __AVR_ATmega8__ |
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LED_PORT ^= _BV(LED); |
106 |
1e34: 40 e2 ldi r20, 0x20 ; 32 |
107 |
} |
108 |
|
109 |
#if LED_START_FLASHES > 0 |
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void flash_led(uint8_t count) { |
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do { |
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TCNT1 = -(F_CPU/(1024*16)); |
113 |
1e36: 3d bd out 0x2d, r19 ; 45 |
114 |
1e38: 2c bd out 0x2c, r18 ; 44 |
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TIFR1 = _BV(TOV1); |
116 |
1e3a: 58 bf out 0x38, r21 ; 56 |
117 |
while(!(TIFR1 & _BV(TOV1))); |
118 |
1e3c: 08 b6 in r0, 0x38 ; 56 |
119 |
1e3e: 02 fe sbrs r0, 2 |
120 |
1e40: fd cf rjmp .-6 ; 0x1e3c <main+0x3c> |
121 |
#ifdef __AVR_ATmega8__ |
122 |
LED_PORT ^= _BV(LED); |
123 |
1e42: 88 b3 in r24, 0x18 ; 24 |
124 |
1e44: 84 27 eor r24, r20 |
125 |
1e46: 88 bb out 0x18, r24 ; 24 |
126 |
} |
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#endif |
128 |
|
129 |
// Watchdog functions. These are only safe with interrupts turned off. |
130 |
void watchdogReset() { |
131 |
__asm__ __volatile__ ( |
132 |
1e48: a8 95 wdr |
133 |
LED_PORT ^= _BV(LED); |
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#else |
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LED_PIN |= _BV(LED); |
136 |
#endif |
137 |
watchdogReset(); |
138 |
} while (--count); |
139 |
1e4a: 91 50 subi r25, 0x01 ; 1 |
140 |
1e4c: a1 f7 brne .-24 ; 0x1e36 <main+0x36> |
141 |
1e4e: cc 24 eor r12, r12 |
142 |
1e50: dd 24 eor r13, r13 |
143 |
ch = SPM_PAGESIZE / 2; |
144 |
do { |
145 |
uint16_t a; |
146 |
a = *bufPtr++; |
147 |
a |= (*bufPtr++) << 8; |
148 |
__boot_page_fill_short((uint16_t)(void*)addrPtr,a); |
149 |
1e52: 88 24 eor r8, r8 |
150 |
1e54: 83 94 inc r8 |
151 |
addrPtr += 2; |
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} while (--ch); |
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|
154 |
// Write from programming buffer |
155 |
__boot_page_write_short((uint16_t)(void*)address); |
156 |
1e56: b5 e0 ldi r27, 0x05 ; 5 |
157 |
1e58: ab 2e mov r10, r27 |
158 |
boot_spm_busy_wait(); |
159 |
|
160 |
#if defined(RWWSRE) |
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// Reenable read access to flash |
162 |
boot_rww_enable(); |
163 |
1e5a: a1 e1 ldi r26, 0x11 ; 17 |
164 |
1e5c: 9a 2e mov r9, r26 |
165 |
do *bufPtr++ = getch(); |
166 |
while (--length); |
167 |
|
168 |
// If we are in NRWW section, page erase has to be delayed until now. |
169 |
// Todo: Take RAMPZ into account |
170 |
if (address >= NRWWSTART) __boot_page_erase_short((uint16_t)(void*)address); |
171 |
1e5e: f3 e0 ldi r31, 0x03 ; 3 |
172 |
1e60: bf 2e mov r11, r31 |
173 |
#endif |
174 |
|
175 |
/* Forever loop */ |
176 |
for (;;) { |
177 |
/* get character from UART */ |
178 |
ch = getch(); |
179 |
1e62: 9e d0 rcall .+316 ; 0x1fa0 <getch> |
180 |
|
181 |
if(ch == STK_GET_PARAMETER) { |
182 |
1e64: 81 34 cpi r24, 0x41 ; 65 |
183 |
1e66: 61 f4 brne .+24 ; 0x1e80 <main+0x80> |
184 |
unsigned char which = getch(); |
185 |
1e68: 9b d0 rcall .+310 ; 0x1fa0 <getch> |
186 |
1e6a: 08 2f mov r16, r24 |
187 |
verifySpace(); |
188 |
1e6c: a4 d0 rcall .+328 ; 0x1fb6 <verifySpace> |
189 |
if (which == 0x82) { |
190 |
1e6e: 02 38 cpi r16, 0x82 ; 130 |
191 |
1e70: 11 f0 breq .+4 ; 0x1e76 <main+0x76> |
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/* |
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* Send optiboot version as "minor SW version" |
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*/ |
195 |
putch(OPTIBOOT_MINVER); |
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} else if (which == 0x81) { |
197 |
1e72: 01 38 cpi r16, 0x81 ; 129 |
198 |
1e74: 11 f4 brne .+4 ; 0x1e7a <main+0x7a> |
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putch(OPTIBOOT_MAJVER); |
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1e76: 84 e0 ldi r24, 0x04 ; 4 |
201 |
1e78: 01 c0 rjmp .+2 ; 0x1e7c <main+0x7c> |
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} else { |
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/* |
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* GET PARAMETER returns a generic 0x03 reply for |
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* other parameters - enough to keep Avrdude happy |
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*/ |
207 |
putch(0x03); |
208 |
1e7a: 83 e0 ldi r24, 0x03 ; 3 |
209 |
1e7c: 8d d0 rcall .+282 ; 0x1f98 <putch> |
210 |
1e7e: 89 c0 rjmp .+274 ; 0x1f92 <main+0x192> |
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} |
212 |
} |
213 |
else if(ch == STK_SET_DEVICE) { |
214 |
1e80: 82 34 cpi r24, 0x42 ; 66 |
215 |
1e82: 11 f4 brne .+4 ; 0x1e88 <main+0x88> |
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// SET DEVICE is ignored |
217 |
getNch(20); |
218 |
1e84: 84 e1 ldi r24, 0x14 ; 20 |
219 |
1e86: 03 c0 rjmp .+6 ; 0x1e8e <main+0x8e> |
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} |
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else if(ch == STK_SET_DEVICE_EXT) { |
222 |
1e88: 85 34 cpi r24, 0x45 ; 69 |
223 |
1e8a: 19 f4 brne .+6 ; 0x1e92 <main+0x92> |
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// SET DEVICE EXT is ignored |
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getNch(5); |
226 |
1e8c: 85 e0 ldi r24, 0x05 ; 5 |
227 |
1e8e: 9b d0 rcall .+310 ; 0x1fc6 <getNch> |
228 |
1e90: 80 c0 rjmp .+256 ; 0x1f92 <main+0x192> |
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} |
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else if(ch == STK_LOAD_ADDRESS) { |
231 |
1e92: 85 35 cpi r24, 0x55 ; 85 |
232 |
1e94: 79 f4 brne .+30 ; 0x1eb4 <main+0xb4> |
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// LOAD ADDRESS |
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uint16_t newAddress; |
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newAddress = getch(); |
236 |
1e96: 84 d0 rcall .+264 ; 0x1fa0 <getch> |
237 |
newAddress = (newAddress & 0xff) | (getch() << 8); |
238 |
1e98: e8 2e mov r14, r24 |
239 |
1e9a: ff 24 eor r15, r15 |
240 |
1e9c: 81 d0 rcall .+258 ; 0x1fa0 <getch> |
241 |
1e9e: 08 2f mov r16, r24 |
242 |
1ea0: 10 e0 ldi r17, 0x00 ; 0 |
243 |
1ea2: 10 2f mov r17, r16 |
244 |
1ea4: 00 27 eor r16, r16 |
245 |
1ea6: 0e 29 or r16, r14 |
246 |
1ea8: 1f 29 or r17, r15 |
247 |
#ifdef RAMPZ |
248 |
// Transfer top bit to RAMPZ |
249 |
RAMPZ = (newAddress & 0x8000) ? 1 : 0; |
250 |
#endif |
251 |
newAddress += newAddress; // Convert from word address to byte address |
252 |
1eaa: 00 0f add r16, r16 |
253 |
1eac: 11 1f adc r17, r17 |
254 |
address = newAddress; |
255 |
verifySpace(); |
256 |
1eae: 83 d0 rcall .+262 ; 0x1fb6 <verifySpace> |
257 |
1eb0: 68 01 movw r12, r16 |
258 |
1eb2: 6f c0 rjmp .+222 ; 0x1f92 <main+0x192> |
259 |
} |
260 |
else if(ch == STK_UNIVERSAL) { |
261 |
1eb4: 86 35 cpi r24, 0x56 ; 86 |
262 |
1eb6: 21 f4 brne .+8 ; 0x1ec0 <main+0xc0> |
263 |
// UNIVERSAL command is ignored |
264 |
getNch(4); |
265 |
1eb8: 84 e0 ldi r24, 0x04 ; 4 |
266 |
1eba: 85 d0 rcall .+266 ; 0x1fc6 <getNch> |
267 |
putch(0x00); |
268 |
1ebc: 80 e0 ldi r24, 0x00 ; 0 |
269 |
1ebe: de cf rjmp .-68 ; 0x1e7c <main+0x7c> |
270 |
} |
271 |
/* Write memory, length is big endian and is in bytes */ |
272 |
else if(ch == STK_PROG_PAGE) { |
273 |
1ec0: 84 36 cpi r24, 0x64 ; 100 |
274 |
1ec2: 09 f0 breq .+2 ; 0x1ec6 <main+0xc6> |
275 |
1ec4: 40 c0 rjmp .+128 ; 0x1f46 <main+0x146> |
276 |
// PROGRAM PAGE - we support flash programming only, not EEPROM |
277 |
uint8_t *bufPtr; |
278 |
uint16_t addrPtr; |
279 |
|
280 |
getch(); /* getlen() */ |
281 |
1ec6: 6c d0 rcall .+216 ; 0x1fa0 <getch> |
282 |
length = getch(); |
283 |
1ec8: 6b d0 rcall .+214 ; 0x1fa0 <getch> |
284 |
1eca: 08 2f mov r16, r24 |
285 |
getch(); |
286 |
1ecc: 69 d0 rcall .+210 ; 0x1fa0 <getch> |
287 |
|
288 |
// If we are in RWW section, immediately start page erase |
289 |
if (address < NRWWSTART) __boot_page_erase_short((uint16_t)(void*)address); |
290 |
1ece: 80 e0 ldi r24, 0x00 ; 0 |
291 |
1ed0: c8 16 cp r12, r24 |
292 |
1ed2: 88 e1 ldi r24, 0x18 ; 24 |
293 |
1ed4: d8 06 cpc r13, r24 |
294 |
1ed6: 18 f4 brcc .+6 ; 0x1ede <main+0xde> |
295 |
1ed8: f6 01 movw r30, r12 |
296 |
1eda: b7 be out 0x37, r11 ; 55 |
297 |
1edc: e8 95 spm |
298 |
1ede: c0 e0 ldi r28, 0x00 ; 0 |
299 |
1ee0: d1 e0 ldi r29, 0x01 ; 1 |
300 |
|
301 |
// While that is going on, read in page contents |
302 |
bufPtr = buff; |
303 |
do *bufPtr++ = getch(); |
304 |
1ee2: 5e d0 rcall .+188 ; 0x1fa0 <getch> |
305 |
1ee4: 89 93 st Y+, r24 |
306 |
while (--length); |
307 |
1ee6: 0c 17 cp r16, r28 |
308 |
1ee8: e1 f7 brne .-8 ; 0x1ee2 <main+0xe2> |
309 |
|
310 |
// If we are in NRWW section, page erase has to be delayed until now. |
311 |
// Todo: Take RAMPZ into account |
312 |
if (address >= NRWWSTART) __boot_page_erase_short((uint16_t)(void*)address); |
313 |
1eea: f0 e0 ldi r31, 0x00 ; 0 |
314 |
1eec: cf 16 cp r12, r31 |
315 |
1eee: f8 e1 ldi r31, 0x18 ; 24 |
316 |
1ef0: df 06 cpc r13, r31 |
317 |
1ef2: 18 f0 brcs .+6 ; 0x1efa <main+0xfa> |
318 |
1ef4: f6 01 movw r30, r12 |
319 |
1ef6: b7 be out 0x37, r11 ; 55 |
320 |
1ef8: e8 95 spm |
321 |
|
322 |
// Read command terminator, start reply |
323 |
verifySpace(); |
324 |
1efa: 5d d0 rcall .+186 ; 0x1fb6 <verifySpace> |
325 |
|
326 |
// If only a partial page is to be programmed, the erase might not be complete. |
327 |
// So check that here |
328 |
boot_spm_busy_wait(); |
329 |
1efc: 07 b6 in r0, 0x37 ; 55 |
330 |
1efe: 00 fc sbrc r0, 0 |
331 |
1f00: fd cf rjmp .-6 ; 0x1efc <main+0xfc> |
332 |
1f02: a6 01 movw r20, r12 |
333 |
1f04: a0 e0 ldi r26, 0x00 ; 0 |
334 |
1f06: b1 e0 ldi r27, 0x01 ; 1 |
335 |
bufPtr = buff; |
336 |
addrPtr = (uint16_t)(void*)address; |
337 |
ch = SPM_PAGESIZE / 2; |
338 |
do { |
339 |
uint16_t a; |
340 |
a = *bufPtr++; |
341 |
1f08: 2c 91 ld r18, X |
342 |
1f0a: 30 e0 ldi r19, 0x00 ; 0 |
343 |
a |= (*bufPtr++) << 8; |
344 |
1f0c: 11 96 adiw r26, 0x01 ; 1 |
345 |
1f0e: 8c 91 ld r24, X |
346 |
1f10: 11 97 sbiw r26, 0x01 ; 1 |
347 |
1f12: 90 e0 ldi r25, 0x00 ; 0 |
348 |
1f14: 98 2f mov r25, r24 |
349 |
1f16: 88 27 eor r24, r24 |
350 |
1f18: 82 2b or r24, r18 |
351 |
1f1a: 93 2b or r25, r19 |
352 |
#define rstVect (*(uint16_t*)(RAMSTART+SPM_PAGESIZE*2+4)) |
353 |
#define wdtVect (*(uint16_t*)(RAMSTART+SPM_PAGESIZE*2+6)) |
354 |
#endif |
355 |
|
356 |
/* main program starts here */ |
357 |
int main(void) { |
358 |
1f1c: 12 96 adiw r26, 0x02 ; 2 |
359 |
ch = SPM_PAGESIZE / 2; |
360 |
do { |
361 |
uint16_t a; |
362 |
a = *bufPtr++; |
363 |
a |= (*bufPtr++) << 8; |
364 |
__boot_page_fill_short((uint16_t)(void*)addrPtr,a); |
365 |
1f1e: fa 01 movw r30, r20 |
366 |
1f20: 0c 01 movw r0, r24 |
367 |
1f22: 87 be out 0x37, r8 ; 55 |
368 |
1f24: e8 95 spm |
369 |
1f26: 11 24 eor r1, r1 |
370 |
addrPtr += 2; |
371 |
1f28: 4e 5f subi r20, 0xFE ; 254 |
372 |
1f2a: 5f 4f sbci r21, 0xFF ; 255 |
373 |
} while (--ch); |
374 |
1f2c: f1 e0 ldi r31, 0x01 ; 1 |
375 |
1f2e: a0 34 cpi r26, 0x40 ; 64 |
376 |
1f30: bf 07 cpc r27, r31 |
377 |
1f32: 51 f7 brne .-44 ; 0x1f08 <main+0x108> |
378 |
|
379 |
// Write from programming buffer |
380 |
__boot_page_write_short((uint16_t)(void*)address); |
381 |
1f34: f6 01 movw r30, r12 |
382 |
1f36: a7 be out 0x37, r10 ; 55 |
383 |
1f38: e8 95 spm |
384 |
boot_spm_busy_wait(); |
385 |
1f3a: 07 b6 in r0, 0x37 ; 55 |
386 |
1f3c: 00 fc sbrc r0, 0 |
387 |
1f3e: fd cf rjmp .-6 ; 0x1f3a <main+0x13a> |
388 |
|
389 |
#if defined(RWWSRE) |
390 |
// Reenable read access to flash |
391 |
boot_rww_enable(); |
392 |
1f40: 97 be out 0x37, r9 ; 55 |
393 |
1f42: e8 95 spm |
394 |
1f44: 26 c0 rjmp .+76 ; 0x1f92 <main+0x192> |
395 |
#endif |
396 |
|
397 |
} |
398 |
/* Read memory block mode, length is big endian. */ |
399 |
else if(ch == STK_READ_PAGE) { |
400 |
1f46: 84 37 cpi r24, 0x74 ; 116 |
401 |
1f48: b1 f4 brne .+44 ; 0x1f76 <main+0x176> |
402 |
// READ PAGE - we only read flash |
403 |
getch(); /* getlen() */ |
404 |
1f4a: 2a d0 rcall .+84 ; 0x1fa0 <getch> |
405 |
length = getch(); |
406 |
1f4c: 29 d0 rcall .+82 ; 0x1fa0 <getch> |
407 |
1f4e: f8 2e mov r15, r24 |
408 |
getch(); |
409 |
1f50: 27 d0 rcall .+78 ; 0x1fa0 <getch> |
410 |
|
411 |
verifySpace(); |
412 |
1f52: 31 d0 rcall .+98 ; 0x1fb6 <verifySpace> |
413 |
1f54: f6 01 movw r30, r12 |
414 |
1f56: ef 2c mov r14, r15 |
415 |
putch(result); |
416 |
address++; |
417 |
} |
418 |
while (--length); |
419 |
#else |
420 |
do putch(pgm_read_byte_near(address++)); |
421 |
1f58: 8f 01 movw r16, r30 |
422 |
1f5a: 0f 5f subi r16, 0xFF ; 255 |
423 |
1f5c: 1f 4f sbci r17, 0xFF ; 255 |
424 |
1f5e: 84 91 lpm r24, Z+ |
425 |
1f60: 1b d0 rcall .+54 ; 0x1f98 <putch> |
426 |
while (--length); |
427 |
1f62: ea 94 dec r14 |
428 |
1f64: f8 01 movw r30, r16 |
429 |
1f66: c1 f7 brne .-16 ; 0x1f58 <main+0x158> |
430 |
#define rstVect (*(uint16_t*)(RAMSTART+SPM_PAGESIZE*2+4)) |
431 |
#define wdtVect (*(uint16_t*)(RAMSTART+SPM_PAGESIZE*2+6)) |
432 |
#endif |
433 |
|
434 |
/* main program starts here */ |
435 |
int main(void) { |
436 |
1f68: 08 94 sec |
437 |
1f6a: c1 1c adc r12, r1 |
438 |
1f6c: d1 1c adc r13, r1 |
439 |
1f6e: fa 94 dec r15 |
440 |
1f70: cf 0c add r12, r15 |
441 |
1f72: d1 1c adc r13, r1 |
442 |
1f74: 0e c0 rjmp .+28 ; 0x1f92 <main+0x192> |
443 |
#endif |
444 |
#endif |
445 |
} |
446 |
|
447 |
/* Get device signature bytes */ |
448 |
else if(ch == STK_READ_SIGN) { |
449 |
1f76: 85 37 cpi r24, 0x75 ; 117 |
450 |
1f78: 39 f4 brne .+14 ; 0x1f88 <main+0x188> |
451 |
// READ SIGN - return what Avrdude wants to hear |
452 |
verifySpace(); |
453 |
1f7a: 1d d0 rcall .+58 ; 0x1fb6 <verifySpace> |
454 |
putch(SIGNATURE_0); |
455 |
1f7c: 8e e1 ldi r24, 0x1E ; 30 |
456 |
1f7e: 0c d0 rcall .+24 ; 0x1f98 <putch> |
457 |
putch(SIGNATURE_1); |
458 |
1f80: 83 e9 ldi r24, 0x93 ; 147 |
459 |
1f82: 0a d0 rcall .+20 ; 0x1f98 <putch> |
460 |
putch(SIGNATURE_2); |
461 |
1f84: 87 e0 ldi r24, 0x07 ; 7 |
462 |
1f86: 7a cf rjmp .-268 ; 0x1e7c <main+0x7c> |
463 |
} |
464 |
else if (ch == 'Q') { |
465 |
1f88: 81 35 cpi r24, 0x51 ; 81 |
466 |
1f8a: 11 f4 brne .+4 ; 0x1f90 <main+0x190> |
467 |
// Adaboot no-wait mod |
468 |
watchdogConfig(WATCHDOG_16MS); |
469 |
1f8c: 88 e0 ldi r24, 0x08 ; 8 |
470 |
1f8e: 0f d0 rcall .+30 ; 0x1fae <watchdogConfig> |
471 |
verifySpace(); |
472 |
} |
473 |
else { |
474 |
// This covers the response to commands like STK_ENTER_PROGMODE |
475 |
verifySpace(); |
476 |
1f90: 12 d0 rcall .+36 ; 0x1fb6 <verifySpace> |
477 |
} |
478 |
putch(STK_OK); |
479 |
1f92: 80 e1 ldi r24, 0x10 ; 16 |
480 |
1f94: 01 d0 rcall .+2 ; 0x1f98 <putch> |
481 |
1f96: 65 cf rjmp .-310 ; 0x1e62 <main+0x62> |
482 |
|
483 |
00001f98 <putch>: |
484 |
} |
485 |
} |
486 |
|
487 |
void putch(char ch) { |
488 |
#ifndef SOFT_UART |
489 |
while (!(UCSR0A & _BV(UDRE0))); |
490 |
1f98: 5d 9b sbis 0x0b, 5 ; 11 |
491 |
1f9a: fe cf rjmp .-4 ; 0x1f98 <putch> |
492 |
UDR0 = ch; |
493 |
1f9c: 8c b9 out 0x0c, r24 ; 12 |
494 |
[uartBit] "I" (UART_TX_BIT) |
495 |
: |
496 |
"r25" |
497 |
); |
498 |
#endif |
499 |
} |
500 |
1f9e: 08 95 ret |
501 |
|
502 |
00001fa0 <getch>: |
503 |
[uartBit] "I" (UART_RX_BIT) |
504 |
: |
505 |
"r25" |
506 |
); |
507 |
#else |
508 |
while(!(UCSR0A & _BV(RXC0))) |
509 |
1fa0: 5f 9b sbis 0x0b, 7 ; 11 |
510 |
1fa2: fe cf rjmp .-4 ; 0x1fa0 <getch> |
511 |
; |
512 |
if (!(UCSR0A & _BV(FE0))) { |
513 |
1fa4: 5c 99 sbic 0x0b, 4 ; 11 |
514 |
1fa6: 01 c0 rjmp .+2 ; 0x1faa <getch+0xa> |
515 |
} |
516 |
#endif |
517 |
|
518 |
// Watchdog functions. These are only safe with interrupts turned off. |
519 |
void watchdogReset() { |
520 |
__asm__ __volatile__ ( |
521 |
1fa8: a8 95 wdr |
522 |
* don't care that an invalid char is returned...) |
523 |
*/ |
524 |
watchdogReset(); |
525 |
} |
526 |
|
527 |
ch = UDR0; |
528 |
1faa: 8c b1 in r24, 0x0c ; 12 |
529 |
LED_PIN |= _BV(LED); |
530 |
#endif |
531 |
#endif |
532 |
|
533 |
return ch; |
534 |
} |
535 |
1fac: 08 95 ret |
536 |
|
537 |
00001fae <watchdogConfig>: |
538 |
"wdr\n" |
539 |
); |
540 |
} |
541 |
|
542 |
void watchdogConfig(uint8_t x) { |
543 |
WDTCSR = _BV(WDCE) | _BV(WDE); |
544 |
1fae: 98 e1 ldi r25, 0x18 ; 24 |
545 |
1fb0: 91 bd out 0x21, r25 ; 33 |
546 |
WDTCSR = x; |
547 |
1fb2: 81 bd out 0x21, r24 ; 33 |
548 |
} |
549 |
1fb4: 08 95 ret |
550 |
|
551 |
00001fb6 <verifySpace>: |
552 |
do getch(); while (--count); |
553 |
verifySpace(); |
554 |
} |
555 |
|
556 |
void verifySpace() { |
557 |
if (getch() != CRC_EOP) { |
558 |
1fb6: f4 df rcall .-24 ; 0x1fa0 <getch> |
559 |
1fb8: 80 32 cpi r24, 0x20 ; 32 |
560 |
1fba: 19 f0 breq .+6 ; 0x1fc2 <verifySpace+0xc> |
561 |
watchdogConfig(WATCHDOG_16MS); // shorten WD timeout |
562 |
1fbc: 88 e0 ldi r24, 0x08 ; 8 |
563 |
1fbe: f7 df rcall .-18 ; 0x1fae <watchdogConfig> |
564 |
1fc0: ff cf rjmp .-2 ; 0x1fc0 <verifySpace+0xa> |
565 |
while (1) // and busy-loop so that WD causes |
566 |
; // a reset and app start. |
567 |
} |
568 |
putch(STK_INSYNC); |
569 |
1fc2: 84 e1 ldi r24, 0x14 ; 20 |
570 |
} |
571 |
1fc4: e9 cf rjmp .-46 ; 0x1f98 <putch> |
572 |
|
573 |
00001fc6 <getNch>: |
574 |
::[count] "M" (UART_B_VALUE) |
575 |
); |
576 |
} |
577 |
#endif |
578 |
|
579 |
void getNch(uint8_t count) { |
580 |
1fc6: 1f 93 push r17 |
581 |
1fc8: 18 2f mov r17, r24 |
582 |
do getch(); while (--count); |
583 |
1fca: ea df rcall .-44 ; 0x1fa0 <getch> |
584 |
1fcc: 11 50 subi r17, 0x01 ; 1 |
585 |
1fce: e9 f7 brne .-6 ; 0x1fca <getNch+0x4> |
586 |
verifySpace(); |
587 |
1fd0: f2 df rcall .-28 ; 0x1fb6 <verifySpace> |
588 |
} |
589 |
1fd2: 1f 91 pop r17 |
590 |
1fd4: 08 95 ret |
591 |
|
592 |
00001fd6 <appStart>: |
593 |
WDTCSR = _BV(WDCE) | _BV(WDE); |
594 |
WDTCSR = x; |
595 |
} |
596 |
|
597 |
void appStart() { |
598 |
watchdogConfig(WATCHDOG_OFF); |
599 |
1fd6: 80 e0 ldi r24, 0x00 ; 0 |
600 |
1fd8: ea df rcall .-44 ; 0x1fae <watchdogConfig> |
601 |
__asm__ __volatile__ ( |
602 |
1fda: ee 27 eor r30, r30 |
603 |
1fdc: ff 27 eor r31, r31 |
604 |
1fde: 09 94 ijmp |