mirror of
https://github.com/arduino/Arduino.git
synced 2025-02-21 15:54:39 +01:00
Optiboot does not support ArduinoasISP programmer. When avrdude runs and talks to an arduino running ArduinoISP, it needs the optiboot (entered due to auto-reset) to abort and start the ArduinoISP "application" when it sees communications at the wrong serial speed. Unfortunately, optiboot treats all unrecognized command characters as "no-ops" and responds/loops for more commands, leading to a nice loop that never gets to the sketch. This patch causes characters received with Framing errors (the most likely error for speed mis-matches) to NOT reset the watchdog timer (normally done in getch()), which will cause the application to start if it continues for "a while." (tested. Works! Running ArduinoISP at speeds as high as 57600 still causes the bootloader to start the sketch (although it fails later on for other reasons.))
618 lines
21 KiB
Plaintext
618 lines
21 KiB
Plaintext
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optiboot_luminet.elf: file format elf32-avr
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Sections:
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Idx Name Size VMA LMA File off Algn
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0 .text 00000242 00001d00 00001d00 00000054 2**1
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CONTENTS, ALLOC, LOAD, READONLY, CODE
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1 .version 00000002 00001efe 00001efe 00000296 2**0
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CONTENTS, READONLY
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2 .debug_aranges 00000028 00000000 00000000 00000298 2**0
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CONTENTS, READONLY, DEBUGGING
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3 .debug_pubnames 0000006d 00000000 00000000 000002c0 2**0
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CONTENTS, READONLY, DEBUGGING
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4 .debug_info 000002a2 00000000 00000000 0000032d 2**0
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CONTENTS, READONLY, DEBUGGING
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5 .debug_abbrev 0000016f 00000000 00000000 000005cf 2**0
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CONTENTS, READONLY, DEBUGGING
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6 .debug_line 0000049d 00000000 00000000 0000073e 2**0
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CONTENTS, READONLY, DEBUGGING
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7 .debug_frame 00000090 00000000 00000000 00000bdc 2**2
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CONTENTS, READONLY, DEBUGGING
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8 .debug_str 00000158 00000000 00000000 00000c6c 2**0
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CONTENTS, READONLY, DEBUGGING
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9 .debug_loc 00000268 00000000 00000000 00000dc4 2**0
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CONTENTS, READONLY, DEBUGGING
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10 .debug_ranges 00000080 00000000 00000000 0000102c 2**0
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CONTENTS, READONLY, DEBUGGING
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Disassembly of section .text:
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00001d00 <main>:
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#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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/* main program starts here */
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int main(void) {
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1d00: 11 24 eor r1, r1
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#ifdef __AVR_ATmega8__
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SP=RAMEND; // This is done by hardware reset
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#endif
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// Adaboot no-wait mod
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ch = MCUSR;
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1d02: 84 b7 in r24, 0x34 ; 52
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MCUSR = 0;
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1d04: 14 be out 0x34, r1 ; 52
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if (!(ch & _BV(EXTRF))) appStart();
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1d06: 81 ff sbrs r24, 1
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1d08: 17 d1 rcall .+558 ; 0x1f38 <appStart>
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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
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1d0a: 85 e0 ldi r24, 0x05 ; 5
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1d0c: 8e bd out 0x2e, r24 ; 46
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UBRR0L = (uint8_t)( (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 );
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#endif
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#endif
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// Set up watchdog to trigger after 500ms
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watchdogConfig(WATCHDOG_1S);
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1d0e: 8e e0 ldi r24, 0x0E ; 14
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1d10: ff d0 rcall .+510 ; 0x1f10 <watchdogConfig>
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/* Set LED pin as output */
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LED_DDR |= _BV(LED);
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1d12: d4 9a sbi 0x1a, 4 ; 26
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#ifdef SOFT_UART
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/* Set TX pin as output */
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UART_DDR |= _BV(UART_TX_BIT);
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1d14: d2 9a sbi 0x1a, 2 ; 26
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1d16: 86 e0 ldi r24, 0x06 ; 6
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}
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#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));
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1d18: 23 ec ldi r18, 0xC3 ; 195
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1d1a: 3f ef ldi r19, 0xFF ; 255
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TIFR1 = _BV(TOV1);
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1d1c: 91 e0 ldi r25, 0x01 ; 1
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}
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#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));
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1d1e: 3d bd out 0x2d, r19 ; 45
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1d20: 2c bd out 0x2c, r18 ; 44
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TIFR1 = _BV(TOV1);
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1d22: 9b b9 out 0x0b, r25 ; 11
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while(!(TIFR1 & _BV(TOV1)));
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1d24: 58 9b sbis 0x0b, 0 ; 11
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1d26: fe cf rjmp .-4 ; 0x1d24 <main+0x24>
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#ifdef __AVR_ATmega8__
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LED_PORT ^= _BV(LED);
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#else
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LED_PIN |= _BV(LED);
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1d28: cc 9a sbi 0x19, 4 ; 25
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}
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#endif
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// Watchdog functions. These are only safe with interrupts turned off.
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void watchdogReset() {
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__asm__ __volatile__ (
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1d2a: a8 95 wdr
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LED_PORT ^= _BV(LED);
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#else
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LED_PIN |= _BV(LED);
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#endif
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watchdogReset();
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} while (--count);
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1d2c: 81 50 subi r24, 0x01 ; 1
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1d2e: b9 f7 brne .-18 ; 0x1d1e <main+0x1e>
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/* get character from UART */
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ch = getch();
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if(ch == STK_GET_PARAMETER) {
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// GET PARAMETER returns a generic 0x03 reply - enough to keep Avrdude happy
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getNch(1);
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1d30: bb 24 eor r11, r11
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1d32: b3 94 inc r11
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__boot_page_fill_short((uint16_t)(void*)addrPtr,a);
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addrPtr += 2;
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} while (--ch);
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// Write from programming buffer
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__boot_page_write_short((uint16_t)(void*)address);
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1d34: 25 e0 ldi r18, 0x05 ; 5
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1d36: a2 2e mov r10, r18
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vect -= 4; // Instruction is a relative jump (rjmp), so recalculate.
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buff[8] = vect & 0xff;
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buff[9] = vect >> 8;
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// Add jump to bootloader at RESET vector
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buff[0] = 0x7f;
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1d38: 9f e7 ldi r25, 0x7F ; 127
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1d3a: d9 2e mov r13, r25
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buff[1] = 0xce; // rjmp 0x1d00 instruction
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1d3c: 8e ec ldi r24, 0xCE ; 206
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1d3e: c8 2e mov r12, r24
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#endif
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/* Forever loop */
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for (;;) {
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/* get character from UART */
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ch = getch();
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1d40: d4 d0 rcall .+424 ; 0x1eea <getch>
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if(ch == STK_GET_PARAMETER) {
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1d42: 81 34 cpi r24, 0x41 ; 65
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1d44: 21 f4 brne .+8 ; 0x1d4e <main+0x4e>
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// GET PARAMETER returns a generic 0x03 reply - enough to keep Avrdude happy
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getNch(1);
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1d46: 81 e0 ldi r24, 0x01 ; 1
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1d48: ef d0 rcall .+478 ; 0x1f28 <getNch>
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putch(0x03);
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1d4a: 83 e0 ldi r24, 0x03 ; 3
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1d4c: b5 c0 rjmp .+362 ; 0x1eb8 <main+0x1b8>
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}
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else if(ch == STK_SET_DEVICE) {
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1d4e: 82 34 cpi r24, 0x42 ; 66
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1d50: 11 f4 brne .+4 ; 0x1d56 <main+0x56>
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// SET DEVICE is ignored
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getNch(20);
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1d52: 84 e1 ldi r24, 0x14 ; 20
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1d54: 03 c0 rjmp .+6 ; 0x1d5c <main+0x5c>
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}
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else if(ch == STK_SET_DEVICE_EXT) {
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1d56: 85 34 cpi r24, 0x45 ; 69
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1d58: 19 f4 brne .+6 ; 0x1d60 <main+0x60>
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// SET DEVICE EXT is ignored
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getNch(5);
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1d5a: 85 e0 ldi r24, 0x05 ; 5
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1d5c: e5 d0 rcall .+458 ; 0x1f28 <getNch>
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1d5e: b3 c0 rjmp .+358 ; 0x1ec6 <main+0x1c6>
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}
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else if(ch == STK_LOAD_ADDRESS) {
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1d60: 85 35 cpi r24, 0x55 ; 85
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1d62: 69 f4 brne .+26 ; 0x1d7e <main+0x7e>
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// LOAD ADDRESS
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uint16_t newAddress;
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newAddress = getch();
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1d64: c2 d0 rcall .+388 ; 0x1eea <getch>
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newAddress = (newAddress & 0xff) | (getch() << 8);
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1d66: e8 2e mov r14, r24
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1d68: ff 24 eor r15, r15
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1d6a: bf d0 rcall .+382 ; 0x1eea <getch>
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1d6c: 08 2f mov r16, r24
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1d6e: 10 e0 ldi r17, 0x00 ; 0
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1d70: 10 2f mov r17, r16
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1d72: 00 27 eor r16, r16
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1d74: 0e 29 or r16, r14
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1d76: 1f 29 or r17, r15
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#ifdef RAMPZ
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// Transfer top bit to RAMPZ
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RAMPZ = (newAddress & 0x8000) ? 1 : 0;
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#endif
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newAddress += newAddress; // Convert from word address to byte address
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1d78: 00 0f add r16, r16
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1d7a: 11 1f adc r17, r17
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1d7c: a3 c0 rjmp .+326 ; 0x1ec4 <main+0x1c4>
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address = newAddress;
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verifySpace();
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}
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else if(ch == STK_UNIVERSAL) {
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1d7e: 86 35 cpi r24, 0x56 ; 86
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1d80: 21 f4 brne .+8 ; 0x1d8a <main+0x8a>
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// UNIVERSAL command is ignored
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getNch(4);
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1d82: 84 e0 ldi r24, 0x04 ; 4
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1d84: d1 d0 rcall .+418 ; 0x1f28 <getNch>
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putch(0x00);
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1d86: 80 e0 ldi r24, 0x00 ; 0
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1d88: 97 c0 rjmp .+302 ; 0x1eb8 <main+0x1b8>
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}
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/* Write memory, length is big endian and is in bytes */
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else if(ch == STK_PROG_PAGE) {
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1d8a: 84 36 cpi r24, 0x64 ; 100
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1d8c: 09 f0 breq .+2 ; 0x1d90 <main+0x90>
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1d8e: 60 c0 rjmp .+192 ; 0x1e50 <main+0x150>
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// PROGRAM PAGE - we support flash programming only, not EEPROM
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uint8_t *bufPtr;
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uint16_t addrPtr;
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getch(); /* getlen() */
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1d90: ac d0 rcall .+344 ; 0x1eea <getch>
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length = getch();
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1d92: ab d0 rcall .+342 ; 0x1eea <getch>
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1d94: f8 2e mov r15, r24
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getch();
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1d96: a9 d0 rcall .+338 ; 0x1eea <getch>
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1d98: c0 e0 ldi r28, 0x00 ; 0
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1d9a: d1 e0 ldi r29, 0x01 ; 1
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// If we are in RWW section, immediately start page erase
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if (address < NRWWSTART) __boot_page_erase_short((uint16_t)(void*)address);
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// While that is going on, read in page contents
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bufPtr = buff;
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do *bufPtr++ = getch();
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1d9c: a6 d0 rcall .+332 ; 0x1eea <getch>
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1d9e: 89 93 st Y+, r24
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while (--length);
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1da0: fc 16 cp r15, r28
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1da2: e1 f7 brne .-8 ; 0x1d9c <main+0x9c>
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// If we are in NRWW section, page erase has to be delayed until now.
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// Todo: Take RAMPZ into account
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if (address >= NRWWSTART) __boot_page_erase_short((uint16_t)(void*)address);
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1da4: 83 e0 ldi r24, 0x03 ; 3
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1da6: f8 01 movw r30, r16
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1da8: 87 bf out 0x37, r24 ; 55
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1daa: e8 95 spm
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// Read command terminator, start reply
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verifySpace();
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1dac: b5 d0 rcall .+362 ; 0x1f18 <verifySpace>
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// If only a partial page is to be programmed, the erase might not be complete.
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// So check that here
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boot_spm_busy_wait();
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1dae: 07 b6 in r0, 0x37 ; 55
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1db0: 00 fc sbrc r0, 0
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1db2: fd cf rjmp .-6 ; 0x1dae <main+0xae>
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#ifdef VIRTUAL_BOOT_PARTITION
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if ((uint16_t)(void*)address == 0) {
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1db4: 01 15 cp r16, r1
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1db6: 11 05 cpc r17, r1
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1db8: 11 f0 breq .+4 ; 0x1dbe <main+0xbe>
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1dba: a8 01 movw r20, r16
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1dbc: 2a c0 rjmp .+84 ; 0x1e12 <main+0x112>
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// This is the reset vector page. We need to live-patch the code so the
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// bootloader runs.
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//
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// Move RESET vector to WDT vector
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uint16_t vect = buff[0] | (buff[1]<<8);
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1dbe: 80 91 00 01 lds r24, 0x0100
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1dc2: 20 91 01 01 lds r18, 0x0101
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1dc6: 30 e0 ldi r19, 0x00 ; 0
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1dc8: 32 2f mov r19, r18
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1dca: 22 27 eor r18, r18
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1dcc: 90 e0 ldi r25, 0x00 ; 0
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1dce: 28 2b or r18, r24
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1dd0: 39 2b or r19, r25
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rstVect = vect;
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1dd2: 30 93 85 01 sts 0x0185, r19
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1dd6: 20 93 84 01 sts 0x0184, r18
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wdtVect = buff[8] | (buff[9]<<8);
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1dda: 40 91 08 01 lds r20, 0x0108
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1dde: 80 91 09 01 lds r24, 0x0109
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1de2: 90 e0 ldi r25, 0x00 ; 0
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1de4: 98 2f mov r25, r24
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1de6: 88 27 eor r24, r24
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1de8: 50 e0 ldi r21, 0x00 ; 0
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1dea: 84 2b or r24, r20
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1dec: 95 2b or r25, r21
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1dee: 90 93 87 01 sts 0x0187, r25
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1df2: 80 93 86 01 sts 0x0186, r24
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vect -= 4; // Instruction is a relative jump (rjmp), so recalculate.
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1df6: 24 50 subi r18, 0x04 ; 4
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1df8: 30 40 sbci r19, 0x00 ; 0
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buff[8] = vect & 0xff;
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1dfa: 20 93 08 01 sts 0x0108, r18
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buff[9] = vect >> 8;
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1dfe: 23 2f mov r18, r19
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1e00: 33 27 eor r19, r19
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1e02: 20 93 09 01 sts 0x0109, r18
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// Add jump to bootloader at RESET vector
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buff[0] = 0x7f;
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1e06: d0 92 00 01 sts 0x0100, r13
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buff[1] = 0xce; // rjmp 0x1d00 instruction
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1e0a: c0 92 01 01 sts 0x0101, r12
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1e0e: 40 e0 ldi r20, 0x00 ; 0
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1e10: 50 e0 ldi r21, 0x00 ; 0
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1e12: a0 e0 ldi r26, 0x00 ; 0
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1e14: b1 e0 ldi r27, 0x01 ; 1
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bufPtr = buff;
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addrPtr = (uint16_t)(void*)address;
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ch = SPM_PAGESIZE / 2;
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do {
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uint16_t a;
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a = *bufPtr++;
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1e16: 2c 91 ld r18, X
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1e18: 30 e0 ldi r19, 0x00 ; 0
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a |= (*bufPtr++) << 8;
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1e1a: 11 96 adiw r26, 0x01 ; 1
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1e1c: 8c 91 ld r24, X
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1e1e: 11 97 sbiw r26, 0x01 ; 1
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1e20: 90 e0 ldi r25, 0x00 ; 0
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1e22: 98 2f mov r25, r24
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1e24: 88 27 eor r24, r24
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1e26: 82 2b or r24, r18
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1e28: 93 2b or r25, r19
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#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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/* main program starts here */
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int main(void) {
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1e2a: 12 96 adiw r26, 0x02 ; 2
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ch = SPM_PAGESIZE / 2;
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do {
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uint16_t a;
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a = *bufPtr++;
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a |= (*bufPtr++) << 8;
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__boot_page_fill_short((uint16_t)(void*)addrPtr,a);
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1e2c: fa 01 movw r30, r20
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1e2e: 0c 01 movw r0, r24
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1e30: b7 be out 0x37, r11 ; 55
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1e32: e8 95 spm
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1e34: 11 24 eor r1, r1
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addrPtr += 2;
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1e36: 4e 5f subi r20, 0xFE ; 254
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1e38: 5f 4f sbci r21, 0xFF ; 255
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} while (--ch);
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1e3a: f1 e0 ldi r31, 0x01 ; 1
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1e3c: a0 34 cpi r26, 0x40 ; 64
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1e3e: bf 07 cpc r27, r31
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1e40: 51 f7 brne .-44 ; 0x1e16 <main+0x116>
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// Write from programming buffer
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__boot_page_write_short((uint16_t)(void*)address);
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1e42: f8 01 movw r30, r16
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1e44: a7 be out 0x37, r10 ; 55
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1e46: e8 95 spm
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boot_spm_busy_wait();
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1e48: 07 b6 in r0, 0x37 ; 55
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1e4a: 00 fc sbrc r0, 0
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1e4c: fd cf rjmp .-6 ; 0x1e48 <main+0x148>
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1e4e: 3b c0 rjmp .+118 ; 0x1ec6 <main+0x1c6>
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boot_rww_enable();
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#endif
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}
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/* Read memory block mode, length is big endian. */
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else if(ch == STK_READ_PAGE) {
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1e50: 84 37 cpi r24, 0x74 ; 116
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1e52: 51 f5 brne .+84 ; 0x1ea8 <main+0x1a8>
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// READ PAGE - we only read flash
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getch(); /* getlen() */
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1e54: 4a d0 rcall .+148 ; 0x1eea <getch>
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length = getch();
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1e56: 49 d0 rcall .+146 ; 0x1eea <getch>
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1e58: f8 2e mov r15, r24
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getch();
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1e5a: 47 d0 rcall .+142 ; 0x1eea <getch>
|
|
|
|
verifySpace();
|
|
1e5c: 5d d0 rcall .+186 ; 0x1f18 <verifySpace>
|
|
1e5e: e8 01 movw r28, r16
|
|
1e60: ef 2c mov r14, r15
|
|
#ifdef VIRTUAL_BOOT_PARTITION
|
|
do {
|
|
// Undo vector patch in bottom page so verify passes
|
|
if (address == 0) ch=rstVect & 0xff;
|
|
1e62: 20 97 sbiw r28, 0x00 ; 0
|
|
1e64: 19 f4 brne .+6 ; 0x1e6c <main+0x16c>
|
|
1e66: 80 91 84 01 lds r24, 0x0184
|
|
1e6a: 14 c0 rjmp .+40 ; 0x1e94 <main+0x194>
|
|
else if (address == 1) ch=rstVect >> 8;
|
|
1e6c: c1 30 cpi r28, 0x01 ; 1
|
|
1e6e: d1 05 cpc r29, r1
|
|
1e70: 19 f4 brne .+6 ; 0x1e78 <main+0x178>
|
|
1e72: 80 91 85 01 lds r24, 0x0185
|
|
1e76: 0e c0 rjmp .+28 ; 0x1e94 <main+0x194>
|
|
else if (address == 8) ch=wdtVect & 0xff;
|
|
1e78: c8 30 cpi r28, 0x08 ; 8
|
|
1e7a: d1 05 cpc r29, r1
|
|
1e7c: 19 f4 brne .+6 ; 0x1e84 <main+0x184>
|
|
1e7e: 80 91 86 01 lds r24, 0x0186
|
|
1e82: 08 c0 rjmp .+16 ; 0x1e94 <main+0x194>
|
|
else if (address == 9) ch=wdtVect >> 8;
|
|
1e84: c9 30 cpi r28, 0x09 ; 9
|
|
1e86: d1 05 cpc r29, r1
|
|
1e88: 19 f4 brne .+6 ; 0x1e90 <main+0x190>
|
|
1e8a: 80 91 87 01 lds r24, 0x0187
|
|
1e8e: 02 c0 rjmp .+4 ; 0x1e94 <main+0x194>
|
|
else ch = pgm_read_byte_near(address);
|
|
1e90: fe 01 movw r30, r28
|
|
1e92: 84 91 lpm r24, Z+
|
|
address++;
|
|
1e94: 21 96 adiw r28, 0x01 ; 1
|
|
putch(ch);
|
|
1e96: 1a d0 rcall .+52 ; 0x1ecc <putch>
|
|
} while (--length);
|
|
1e98: ea 94 dec r14
|
|
1e9a: 19 f7 brne .-58 ; 0x1e62 <main+0x162>
|
|
#define rstVect (*(uint16_t*)(RAMSTART+SPM_PAGESIZE*2+4))
|
|
#define wdtVect (*(uint16_t*)(RAMSTART+SPM_PAGESIZE*2+6))
|
|
#endif
|
|
|
|
/* main program starts here */
|
|
int main(void) {
|
|
1e9c: 0f 5f subi r16, 0xFF ; 255
|
|
1e9e: 1f 4f sbci r17, 0xFF ; 255
|
|
1ea0: fa 94 dec r15
|
|
1ea2: 0f 0d add r16, r15
|
|
1ea4: 11 1d adc r17, r1
|
|
1ea6: 0f c0 rjmp .+30 ; 0x1ec6 <main+0x1c6>
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
/* Get device signature bytes */
|
|
else if(ch == STK_READ_SIGN) {
|
|
1ea8: 85 37 cpi r24, 0x75 ; 117
|
|
1eaa: 41 f4 brne .+16 ; 0x1ebc <main+0x1bc>
|
|
// READ SIGN - return what Avrdude wants to hear
|
|
verifySpace();
|
|
1eac: 35 d0 rcall .+106 ; 0x1f18 <verifySpace>
|
|
putch(SIGNATURE_0);
|
|
1eae: 8e e1 ldi r24, 0x1E ; 30
|
|
1eb0: 0d d0 rcall .+26 ; 0x1ecc <putch>
|
|
putch(SIGNATURE_1);
|
|
1eb2: 83 e9 ldi r24, 0x93 ; 147
|
|
1eb4: 0b d0 rcall .+22 ; 0x1ecc <putch>
|
|
putch(SIGNATURE_2);
|
|
1eb6: 8c e0 ldi r24, 0x0C ; 12
|
|
1eb8: 09 d0 rcall .+18 ; 0x1ecc <putch>
|
|
1eba: 05 c0 rjmp .+10 ; 0x1ec6 <main+0x1c6>
|
|
}
|
|
else if (ch == 'Q') {
|
|
1ebc: 81 35 cpi r24, 0x51 ; 81
|
|
1ebe: 11 f4 brne .+4 ; 0x1ec4 <main+0x1c4>
|
|
// Adaboot no-wait mod
|
|
watchdogConfig(WATCHDOG_16MS);
|
|
1ec0: 88 e0 ldi r24, 0x08 ; 8
|
|
1ec2: 26 d0 rcall .+76 ; 0x1f10 <watchdogConfig>
|
|
verifySpace();
|
|
}
|
|
else {
|
|
// This covers the response to commands like STK_ENTER_PROGMODE
|
|
verifySpace();
|
|
1ec4: 29 d0 rcall .+82 ; 0x1f18 <verifySpace>
|
|
}
|
|
putch(STK_OK);
|
|
1ec6: 80 e1 ldi r24, 0x10 ; 16
|
|
1ec8: 01 d0 rcall .+2 ; 0x1ecc <putch>
|
|
1eca: 3a cf rjmp .-396 ; 0x1d40 <main+0x40>
|
|
|
|
00001ecc <putch>:
|
|
void putch(char ch) {
|
|
#ifndef SOFT_UART
|
|
while (!(UCSR0A & _BV(UDRE0)));
|
|
UDR0 = ch;
|
|
#else
|
|
__asm__ __volatile__ (
|
|
1ecc: 2a e0 ldi r18, 0x0A ; 10
|
|
1ece: 30 e0 ldi r19, 0x00 ; 0
|
|
1ed0: 80 95 com r24
|
|
1ed2: 08 94 sec
|
|
1ed4: 10 f4 brcc .+4 ; 0x1eda <putch+0xe>
|
|
1ed6: da 98 cbi 0x1b, 2 ; 27
|
|
1ed8: 02 c0 rjmp .+4 ; 0x1ede <putch+0x12>
|
|
1eda: da 9a sbi 0x1b, 2 ; 27
|
|
1edc: 00 00 nop
|
|
1ede: 14 d0 rcall .+40 ; 0x1f08 <uartDelay>
|
|
1ee0: 13 d0 rcall .+38 ; 0x1f08 <uartDelay>
|
|
1ee2: 86 95 lsr r24
|
|
1ee4: 2a 95 dec r18
|
|
1ee6: b1 f7 brne .-20 ; 0x1ed4 <putch+0x8>
|
|
[uartBit] "I" (UART_TX_BIT)
|
|
:
|
|
"r25"
|
|
);
|
|
#endif
|
|
}
|
|
1ee8: 08 95 ret
|
|
|
|
00001eea <getch>:
|
|
LED_PIN |= _BV(LED);
|
|
#endif
|
|
#endif
|
|
|
|
return ch;
|
|
}
|
|
1eea: 29 e0 ldi r18, 0x09 ; 9
|
|
1eec: 30 e0 ldi r19, 0x00 ; 0
|
|
1eee: cb 99 sbic 0x19, 3 ; 25
|
|
1ef0: fe cf rjmp .-4 ; 0x1eee <getch+0x4>
|
|
1ef2: 0a d0 rcall .+20 ; 0x1f08 <uartDelay>
|
|
1ef4: 09 d0 rcall .+18 ; 0x1f08 <uartDelay>
|
|
1ef6: 08 d0 rcall .+16 ; 0x1f08 <uartDelay>
|
|
1ef8: 88 94 clc
|
|
1efa: cb 99 sbic 0x19, 3 ; 25
|
|
1efc: 08 94 sec
|
|
1efe: 2a 95 dec r18
|
|
1f00: 11 f0 breq .+4 ; 0x1f06 <optiboot_version+0x8>
|
|
1f02: 87 95 ror r24
|
|
1f04: f7 cf rjmp .-18 ; 0x1ef4 <getch+0xa>
|
|
1f06: 08 95 ret
|
|
|
|
00001f08 <uartDelay>:
|
|
#if UART_B_VALUE > 255
|
|
#error Baud rate too slow for soft UART
|
|
#endif
|
|
|
|
void uartDelay() {
|
|
__asm__ __volatile__ (
|
|
1f08: 9e e0 ldi r25, 0x0E ; 14
|
|
1f0a: 9a 95 dec r25
|
|
1f0c: f1 f7 brne .-4 ; 0x1f0a <uartDelay+0x2>
|
|
1f0e: 08 95 ret
|
|
|
|
00001f10 <watchdogConfig>:
|
|
"wdr\n"
|
|
);
|
|
}
|
|
|
|
void watchdogConfig(uint8_t x) {
|
|
WDTCSR = _BV(WDCE) | _BV(WDE);
|
|
1f10: 98 e1 ldi r25, 0x18 ; 24
|
|
1f12: 91 bd out 0x21, r25 ; 33
|
|
WDTCSR = x;
|
|
1f14: 81 bd out 0x21, r24 ; 33
|
|
}
|
|
1f16: 08 95 ret
|
|
|
|
00001f18 <verifySpace>:
|
|
do getch(); while (--count);
|
|
verifySpace();
|
|
}
|
|
|
|
void verifySpace() {
|
|
if (getch() != CRC_EOP) {
|
|
1f18: e8 df rcall .-48 ; 0x1eea <getch>
|
|
1f1a: 80 32 cpi r24, 0x20 ; 32
|
|
1f1c: 19 f0 breq .+6 ; 0x1f24 <verifySpace+0xc>
|
|
watchdogConfig(WATCHDOG_16MS); // shorten WD timeout
|
|
1f1e: 88 e0 ldi r24, 0x08 ; 8
|
|
1f20: f7 df rcall .-18 ; 0x1f10 <watchdogConfig>
|
|
1f22: ff cf rjmp .-2 ; 0x1f22 <verifySpace+0xa>
|
|
while (1) // and busy-loop so that WD causes
|
|
; // a reset and app start.
|
|
}
|
|
putch(STK_INSYNC);
|
|
1f24: 84 e1 ldi r24, 0x14 ; 20
|
|
}
|
|
1f26: d2 cf rjmp .-92 ; 0x1ecc <putch>
|
|
|
|
00001f28 <getNch>:
|
|
::[count] "M" (UART_B_VALUE)
|
|
);
|
|
}
|
|
#endif
|
|
|
|
void getNch(uint8_t count) {
|
|
1f28: 1f 93 push r17
|
|
1f2a: 18 2f mov r17, r24
|
|
do getch(); while (--count);
|
|
1f2c: de df rcall .-68 ; 0x1eea <getch>
|
|
1f2e: 11 50 subi r17, 0x01 ; 1
|
|
1f30: e9 f7 brne .-6 ; 0x1f2c <getNch+0x4>
|
|
verifySpace();
|
|
1f32: f2 df rcall .-28 ; 0x1f18 <verifySpace>
|
|
}
|
|
1f34: 1f 91 pop r17
|
|
1f36: 08 95 ret
|
|
|
|
00001f38 <appStart>:
|
|
WDTCSR = _BV(WDCE) | _BV(WDE);
|
|
WDTCSR = x;
|
|
}
|
|
|
|
void appStart() {
|
|
watchdogConfig(WATCHDOG_OFF);
|
|
1f38: 80 e0 ldi r24, 0x00 ; 0
|
|
1f3a: ea df rcall .-44 ; 0x1f10 <watchdogConfig>
|
|
__asm__ __volatile__ (
|
|
1f3c: e4 e0 ldi r30, 0x04 ; 4
|
|
1f3e: ff 27 eor r31, r31
|
|
1f40: 09 94 ijmp
|