: #ifdef VIRTUAL_BOOT_PARTITION #define rstVect (*(uint16_t*)(0x204)) #define wdtVect (*(uint16_t*)(0x206)) #endif /* main program starts here */ int main(void) { 3e00: 85 e0 ldi r24, 0x05 ; 5 3e02: 80 93 81 00 sts 0x0081, r24 UCSR0C = _BV(UCSZ00) | _BV(UCSZ01); UBRR0L = (uint8_t)( (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 ); #endif // Adaboot no-wait mod ch = MCUSR; 3e06: 84 b7 in r24, 0x34 ; 52 MCUSR = 0; 3e08: 14 be out 0x34, r1 ; 52 if (!(ch & _BV(EXTRF))) appStart(); 3e0a: 81 ff sbrs r24, 1 3e0c: e4 d0 rcall .+456 ; 0x3fd6 // Set up watchdog to trigger after 500ms watchdogConfig(WATCHDOG_500MS); 3e0e: 8d e0 ldi r24, 0x0D ; 13 3e10: dc d0 rcall .+440 ; 0x3fca /* Set LED pin as output */ LED_DDR |= _BV(LED); 3e12: 25 9a sbi 0x04, 5 ; 4 #ifdef SOFT_UART /* Set TX pin as output */ UART_DDR |= _BV(UART_TX_BIT); 3e14: 51 9a sbi 0x0a, 1 ; 10 3e16: 86 e0 ldi r24, 0x06 ; 6 } #if LED_START_FLASHES > 0 void flash_led(uint8_t count) { do { TCNT1 = -(F_CPU/(1024*16)); 3e18: 28 e1 ldi r18, 0x18 ; 24 3e1a: 3e ef ldi r19, 0xFE ; 254 TIFR1 = _BV(TOV1); 3e1c: 91 e0 ldi r25, 0x01 ; 1 } #if LED_START_FLASHES > 0 void flash_led(uint8_t count) { do { TCNT1 = -(F_CPU/(1024*16)); 3e1e: 30 93 85 00 sts 0x0085, r19 3e22: 20 93 84 00 sts 0x0084, r18 TIFR1 = _BV(TOV1); 3e26: 96 bb out 0x16, r25 ; 22 while(!(TIFR1 & _BV(TOV1))); 3e28: b0 9b sbis 0x16, 0 ; 22 3e2a: fe cf rjmp .-4 ; 0x3e28 LED_PIN |= _BV(LED); 3e2c: 1d 9a sbi 0x03, 5 ; 3 return getch(); } // Watchdog functions. These are only safe with interrupts turned off. void watchdogReset() { __asm__ __volatile__ ( 3e2e: a8 95 wdr TCNT1 = -(F_CPU/(1024*16)); TIFR1 = _BV(TOV1); while(!(TIFR1 & _BV(TOV1))); LED_PIN |= _BV(LED); watchdogReset(); } while (--count); 3e30: 81 50 subi r24, 0x01 ; 1 3e32: a9 f7 brne .-22 ; 0x3e1e /* get character from UART */ ch = getch(); if(ch == STK_GET_PARAMETER) { // GET PARAMETER returns a generic 0x03 reply - enough to keep Avrdude happy getNch(1); 3e34: dd 24 eor r13, r13 3e36: d3 94 inc r13 boot_page_fill((uint16_t)(void*)addrPtr,a); addrPtr += 2; } while (--ch); // Write from programming buffer boot_page_write((uint16_t)(void*)address); 3e38: a5 e0 ldi r26, 0x05 ; 5 3e3a: ea 2e mov r14, r26 boot_spm_busy_wait(); #if defined(RWWSRE) // Reenable read access to flash boot_rww_enable(); 3e3c: f1 e1 ldi r31, 0x11 ; 17 3e3e: ff 2e mov r15, r31 #endif /* Forever loop */ for (;;) { /* get character from UART */ ch = getch(); 3e40: ab d0 rcall .+342 ; 0x3f98 if(ch == STK_GET_PARAMETER) { 3e42: 81 34 cpi r24, 0x41 ; 65 3e44: 21 f4 brne .+8 ; 0x3e4e // GET PARAMETER returns a generic 0x03 reply - enough to keep Avrdude happy getNch(1); 3e46: 81 e0 ldi r24, 0x01 ; 1 3e48: d1 d0 rcall .+418 ; 0x3fec putch(0x03); 3e4a: 83 e0 ldi r24, 0x03 ; 3 3e4c: 24 c0 rjmp .+72 ; 0x3e96 } else if(ch == STK_SET_DEVICE) { 3e4e: 82 34 cpi r24, 0x42 ; 66 3e50: 11 f4 brne .+4 ; 0x3e56 // SET DEVICE is ignored getNch(20); 3e52: 84 e1 ldi r24, 0x14 ; 20 3e54: 03 c0 rjmp .+6 ; 0x3e5c } else if(ch == STK_SET_DEVICE_EXT) { 3e56: 85 34 cpi r24, 0x45 ; 69 3e58: 19 f4 brne .+6 ; 0x3e60 // SET DEVICE EXT is ignored getNch(5); 3e5a: 85 e0 ldi r24, 0x05 ; 5 3e5c: c7 d0 rcall .+398 ; 0x3fec 3e5e: 8a c0 rjmp .+276 ; 0x3f74 } else if(ch == STK_LOAD_ADDRESS) { 3e60: 85 35 cpi r24, 0x55 ; 85 3e62: a1 f4 brne .+40 ; 0x3e8c // LOAD ADDRESS address = getch(); 3e64: 99 d0 rcall .+306 ; 0x3f98 3e66: 08 2f mov r16, r24 3e68: 10 e0 ldi r17, 0x00 ; 0 3e6a: 10 93 01 02 sts 0x0201, r17 3e6e: 00 93 00 02 sts 0x0200, r16 address = (address & 0xff) | (getch() << 8); 3e72: 92 d0 rcall .+292 ; 0x3f98 3e74: 90 e0 ldi r25, 0x00 ; 0 3e76: 98 2f mov r25, r24 3e78: 88 27 eor r24, r24 3e7a: 80 2b or r24, r16 3e7c: 91 2b or r25, r17 address += address; // Convert from word address to byte address 3e7e: 88 0f add r24, r24 3e80: 99 1f adc r25, r25 3e82: 90 93 01 02 sts 0x0201, r25 3e86: 80 93 00 02 sts 0x0200, r24 3e8a: 73 c0 rjmp .+230 ; 0x3f72 verifySpace(); } else if(ch == STK_UNIVERSAL) { 3e8c: 86 35 cpi r24, 0x56 ; 86 3e8e: 29 f4 brne .+10 ; 0x3e9a // UNIVERSAL command is ignored getNch(4); 3e90: 84 e0 ldi r24, 0x04 ; 4 3e92: ac d0 rcall .+344 ; 0x3fec putch(0x00); 3e94: 80 e0 ldi r24, 0x00 ; 0 3e96: 71 d0 rcall .+226 ; 0x3f7a 3e98: 6d c0 rjmp .+218 ; 0x3f74 } /* Write memory, length is big endian and is in bytes */ else if(ch == STK_PROG_PAGE) { 3e9a: 84 36 cpi r24, 0x64 ; 100 3e9c: 09 f0 breq .+2 ; 0x3ea0 3e9e: 43 c0 rjmp .+134 ; 0x3f26 // PROGRAM PAGE - we support flash programming only, not EEPROM uint8_t *bufPtr; uint16_t addrPtr; getLen(); 3ea0: 8f d0 rcall .+286 ; 0x3fc0 // Immediately start page erase - this will 4.5ms boot_page_erase((uint16_t)(void*)address); 3ea2: e0 91 00 02 lds r30, 0x0200 3ea6: f0 91 01 02 lds r31, 0x0201 3eaa: 83 e0 ldi r24, 0x03 ; 3 3eac: 80 93 57 00 sts 0x0057, r24 3eb0: e8 95 spm 3eb2: c0 e0 ldi r28, 0x00 ; 0 3eb4: d1 e0 ldi r29, 0x01 ; 1 // While that is going on, read in page contents bufPtr = buff; do *bufPtr++ = getch(); 3eb6: 70 d0 rcall .+224 ; 0x3f98 3eb8: 89 93 st Y+, r24 while (--length); 3eba: 80 91 02 02 lds r24, 0x0202 3ebe: 81 50 subi r24, 0x01 ; 1 3ec0: 80 93 02 02 sts 0x0202, r24 3ec4: 88 23 and r24, r24 3ec6: b9 f7 brne .-18 ; 0x3eb6 // Read command terminator, start reply verifySpace(); 3ec8: 8b d0 rcall .+278 ; 0x3fe0 // If only a partial page is to be programmed, the erase might not be complete. // So check that here boot_spm_busy_wait(); 3eca: 07 b6 in r0, 0x37 ; 55 3ecc: 00 fc sbrc r0, 0 3ece: fd cf rjmp .-6 ; 0x3eca } #endif // Copy buffer into programming buffer bufPtr = buff; addrPtr = (uint16_t)(void*)address; 3ed0: 40 91 00 02 lds r20, 0x0200 3ed4: 50 91 01 02 lds r21, 0x0201 3ed8: a0 e0 ldi r26, 0x00 ; 0 3eda: b1 e0 ldi r27, 0x01 ; 1 ch = SPM_PAGESIZE / 2; do { uint16_t a; a = *bufPtr++; 3edc: 2c 91 ld r18, X 3ede: 30 e0 ldi r19, 0x00 ; 0 a |= (*bufPtr++) << 8; 3ee0: 11 96 adiw r26, 0x01 ; 1 3ee2: 8c 91 ld r24, X 3ee4: 11 97 sbiw r26, 0x01 ; 1 3ee6: 90 e0 ldi r25, 0x00 ; 0 3ee8: 98 2f mov r25, r24 3eea: 88 27 eor r24, r24 3eec: 82 2b or r24, r18 3eee: 93 2b or r25, r19 #ifdef VIRTUAL_BOOT_PARTITION #define rstVect (*(uint16_t*)(0x204)) #define wdtVect (*(uint16_t*)(0x206)) #endif /* main program starts here */ int main(void) { 3ef0: 12 96 adiw r26, 0x02 ; 2 ch = SPM_PAGESIZE / 2; do { uint16_t a; a = *bufPtr++; a |= (*bufPtr++) << 8; boot_page_fill((uint16_t)(void*)addrPtr,a); 3ef2: fa 01 movw r30, r20 3ef4: 0c 01 movw r0, r24 3ef6: d0 92 57 00 sts 0x0057, r13 3efa: e8 95 spm 3efc: 11 24 eor r1, r1 addrPtr += 2; 3efe: 4e 5f subi r20, 0xFE ; 254 3f00: 5f 4f sbci r21, 0xFF ; 255 } while (--ch); 3f02: f1 e0 ldi r31, 0x01 ; 1 3f04: a0 38 cpi r26, 0x80 ; 128 3f06: bf 07 cpc r27, r31 3f08: 49 f7 brne .-46 ; 0x3edc // Write from programming buffer boot_page_write((uint16_t)(void*)address); 3f0a: e0 91 00 02 lds r30, 0x0200 3f0e: f0 91 01 02 lds r31, 0x0201 3f12: e0 92 57 00 sts 0x0057, r14 3f16: e8 95 spm boot_spm_busy_wait(); 3f18: 07 b6 in r0, 0x37 ; 55 3f1a: 00 fc sbrc r0, 0 3f1c: fd cf rjmp .-6 ; 0x3f18 #if defined(RWWSRE) // Reenable read access to flash boot_rww_enable(); 3f1e: f0 92 57 00 sts 0x0057, r15 3f22: e8 95 spm 3f24: 27 c0 rjmp .+78 ; 0x3f74 #endif } /* Read memory block mode, length is big endian. */ else if(ch == STK_READ_PAGE) { 3f26: 84 37 cpi r24, 0x74 ; 116 3f28: b9 f4 brne .+46 ; 0x3f58 // READ PAGE - we only read flash getLen(); 3f2a: 4a d0 rcall .+148 ; 0x3fc0 verifySpace(); 3f2c: 59 d0 rcall .+178 ; 0x3fe0 else ch = pgm_read_byte_near(address); address++; putch(ch); } while (--length); #else do putch(pgm_read_byte_near(address++)); 3f2e: e0 91 00 02 lds r30, 0x0200 3f32: f0 91 01 02 lds r31, 0x0201 3f36: 31 96 adiw r30, 0x01 ; 1 3f38: f0 93 01 02 sts 0x0201, r31 3f3c: e0 93 00 02 sts 0x0200, r30 3f40: 31 97 sbiw r30, 0x01 ; 1 3f42: e4 91 lpm r30, Z+ 3f44: 8e 2f mov r24, r30 3f46: 19 d0 rcall .+50 ; 0x3f7a while (--length); 3f48: 80 91 02 02 lds r24, 0x0202 3f4c: 81 50 subi r24, 0x01 ; 1 3f4e: 80 93 02 02 sts 0x0202, r24 3f52: 88 23 and r24, r24 3f54: 61 f7 brne .-40 ; 0x3f2e 3f56: 0e c0 rjmp .+28 ; 0x3f74 #endif } /* Get device signature bytes */ else if(ch == STK_READ_SIGN) { 3f58: 85 37 cpi r24, 0x75 ; 117 3f5a: 39 f4 brne .+14 ; 0x3f6a // READ SIGN - return what Avrdude wants to hear verifySpace(); 3f5c: 41 d0 rcall .+130 ; 0x3fe0 putch(SIGNATURE_0); 3f5e: 8e e1 ldi r24, 0x1E ; 30 3f60: 0c d0 rcall .+24 ; 0x3f7a putch(SIGNATURE_1); 3f62: 84 e9 ldi r24, 0x94 ; 148 3f64: 0a d0 rcall .+20 ; 0x3f7a putch(SIGNATURE_2); 3f66: 86 e0 ldi r24, 0x06 ; 6 3f68: 96 cf rjmp .-212 ; 0x3e96 } else if (ch == 'Q') { 3f6a: 81 35 cpi r24, 0x51 ; 81 3f6c: 11 f4 brne .+4 ; 0x3f72 // Adaboot no-wait mod watchdogConfig(WATCHDOG_16MS); 3f6e: 88 e0 ldi r24, 0x08 ; 8 3f70: 2c d0 rcall .+88 ; 0x3fca verifySpace(); } else { // This covers the response to commands like STK_ENTER_PROGMODE verifySpace(); 3f72: 36 d0 rcall .+108 ; 0x3fe0 } putch(STK_OK); 3f74: 80 e1 ldi r24, 0x10 ; 16 3f76: 01 d0 rcall .+2 ; 0x3f7a 3f78: 63 cf rjmp .-314 ; 0x3e40 00003f7a : void putch(char ch) { #ifndef SOFT_UART while (!(UCSR0A & _BV(UDRE0))); UDR0 = ch; #else __asm__ __volatile__ ( 3f7a: 2a e0 ldi r18, 0x0A ; 10 3f7c: 30 e0 ldi r19, 0x00 ; 0 3f7e: 80 95 com r24 3f80: 08 94 sec 3f82: 10 f4 brcc .+4 ; 0x3f88 3f84: 59 98 cbi 0x0b, 1 ; 11 3f86: 02 c0 rjmp .+4 ; 0x3f8c 3f88: 59 9a sbi 0x0b, 1 ; 11 3f8a: 00 00 nop 3f8c: 15 d0 rcall .+42 ; 0x3fb8 3f8e: 14 d0 rcall .+40 ; 0x3fb8 3f90: 86 95 lsr r24 3f92: 2a 95 dec r18 3f94: b1 f7 brne .-20 ; 0x3f82 [uartBit] "I" (UART_TX_BIT) : "r25" ); #endif } 3f96: 08 95 ret 00003f98 : return getch(); } // Watchdog functions. These are only safe with interrupts turned off. void watchdogReset() { __asm__ __volatile__ ( 3f98: a8 95 wdr #ifdef LED_DATA_FLASH LED_PIN |= _BV(LED); #endif return ch; } 3f9a: 29 e0 ldi r18, 0x09 ; 9 3f9c: 30 e0 ldi r19, 0x00 ; 0 3f9e: 48 99 sbic 0x09, 0 ; 9 3fa0: fe cf rjmp .-4 ; 0x3f9e 3fa2: 0a d0 rcall .+20 ; 0x3fb8 3fa4: 09 d0 rcall .+18 ; 0x3fb8 3fa6: 08 d0 rcall .+16 ; 0x3fb8 3fa8: 88 94 clc 3faa: 48 99 sbic 0x09, 0 ; 9 3fac: 08 94 sec 3fae: 2a 95 dec r18 3fb0: 11 f0 breq .+4 ; 0x3fb6 3fb2: 87 95 ror r24 3fb4: f7 cf rjmp .-18 ; 0x3fa4 3fb6: 08 95 ret 00003fb8 : #if UART_B_VALUE > 255 #error Baud rate too slow for soft UART #endif void uartDelay() { __asm__ __volatile__ ( 3fb8: 98 e0 ldi r25, 0x08 ; 8 3fba: 9a 95 dec r25 3fbc: f1 f7 brne .-4 ; 0x3fba 3fbe: 08 95 ret 00003fc0 : } while (--count); } #endif uint8_t getLen() { getch(); 3fc0: eb df rcall .-42 ; 0x3f98 length = getch(); 3fc2: ea df rcall .-44 ; 0x3f98 3fc4: 80 93 02 02 sts 0x0202, r24 return getch(); } 3fc8: e7 cf rjmp .-50 ; 0x3f98 00003fca : "wdr\n" ); } void watchdogConfig(uint8_t x) { WDTCSR = _BV(WDCE) | _BV(WDE); 3fca: e0 e6 ldi r30, 0x60 ; 96 3fcc: f0 e0 ldi r31, 0x00 ; 0 3fce: 98 e1 ldi r25, 0x18 ; 24 3fd0: 90 83 st Z, r25 WDTCSR = x; 3fd2: 80 83 st Z, r24 } 3fd4: 08 95 ret 00003fd6 : void appStart() { watchdogConfig(WATCHDOG_OFF); 3fd6: 80 e0 ldi r24, 0x00 ; 0 3fd8: f8 df rcall .-16 ; 0x3fca __asm__ __volatile__ ( 3fda: ee 27 eor r30, r30 3fdc: ff 27 eor r31, r31 3fde: 09 94 ijmp 00003fe0 : do getch(); while (--count); verifySpace(); } void verifySpace() { if (getch() != CRC_EOP) appStart(); 3fe0: db df rcall .-74 ; 0x3f98 3fe2: 80 32 cpi r24, 0x20 ; 32 3fe4: 09 f0 breq .+2 ; 0x3fe8 3fe6: f7 df rcall .-18 ; 0x3fd6 putch(STK_INSYNC); 3fe8: 84 e1 ldi r24, 0x14 ; 20 } 3fea: c7 cf rjmp .-114 ; 0x3f7a ::[count] "M" (UART_B_VALUE) ); } #endif void getNch(uint8_t count) { 3fec: 1f 93 push r17 3fee: 18 2f mov r17, r24 00003ff0 : do getch(); while (--count); 3ff0: d3 df rcall .-90 ; 0x3f98 3ff2: 11 50 subi r17, 0x01 ; 1 3ff4: e9 f7 brne .-6 ; 0x3ff0 verifySpace(); 3ff6: f4 df rcall .-24 ; 0x3fe0 } 3ff8: 1f 91 pop r17 3ffa: 08 95 ret