: #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) { 7e00: 11 24 eor r1, r1 #ifdef __AVR_ATmega8__ SP=RAMEND; // This is done by hardware reset #endif // Adaboot no-wait mod ch = MCUSR; 7e02: 84 b7 in r24, 0x34 ; 52 MCUSR = 0; 7e04: 14 be out 0x34, r1 ; 52 if (!(ch & _BV(EXTRF))) appStart(); 7e06: 81 ff sbrs r24, 1 7e08: e3 d0 rcall .+454 ; 0x7fd0 #if LED_START_FLASHES > 0 // Set up Timer 1 for timeout counter TCCR1B = _BV(CS12) | _BV(CS10); // div 1024 7e0a: 85 e0 ldi r24, 0x05 ; 5 7e0c: 80 93 81 00 sts 0x0081, r24 UCSRA = _BV(U2X); //Double speed mode USART UCSRB = _BV(RXEN) | _BV(TXEN); // enable Rx & Tx UCSRC = _BV(URSEL) | _BV(UCSZ1) | _BV(UCSZ0); // config USART; 8N1 UBRRL = (uint8_t)( (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 ); #else UCSR0A = _BV(U2X0); //Double speed mode USART0 7e10: 82 e0 ldi r24, 0x02 ; 2 7e12: 80 93 c0 00 sts 0x00C0, r24 UCSR0B = _BV(RXEN0) | _BV(TXEN0); 7e16: 88 e1 ldi r24, 0x18 ; 24 7e18: 80 93 c1 00 sts 0x00C1, r24 UCSR0C = _BV(UCSZ00) | _BV(UCSZ01); 7e1c: 86 e0 ldi r24, 0x06 ; 6 7e1e: 80 93 c2 00 sts 0x00C2, r24 UBRR0L = (uint8_t)( (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 ); 7e22: 80 e1 ldi r24, 0x10 ; 16 7e24: 80 93 c4 00 sts 0x00C4, r24 #endif #endif // Set up watchdog to trigger after 500ms watchdogConfig(WATCHDOG_1S); 7e28: 8e e0 ldi r24, 0x0E ; 14 7e2a: bc d0 rcall .+376 ; 0x7fa4 /* Set LED pin as output */ LED_DDR |= _BV(LED); 7e2c: 25 9a sbi 0x04, 5 ; 4 7e2e: 86 e0 ldi r24, 0x06 ; 6 } #if LED_START_FLASHES > 0 void flash_led(uint8_t count) { do { TCNT1 = -(F_CPU/(1024*16)); 7e30: 20 e3 ldi r18, 0x30 ; 48 7e32: 3c ef ldi r19, 0xFC ; 252 TIFR1 = _BV(TOV1); 7e34: 91 e0 ldi r25, 0x01 ; 1 } #if LED_START_FLASHES > 0 void flash_led(uint8_t count) { do { TCNT1 = -(F_CPU/(1024*16)); 7e36: 30 93 85 00 sts 0x0085, r19 7e3a: 20 93 84 00 sts 0x0084, r18 TIFR1 = _BV(TOV1); 7e3e: 96 bb out 0x16, r25 ; 22 while(!(TIFR1 & _BV(TOV1))); 7e40: b0 9b sbis 0x16, 0 ; 22 7e42: fe cf rjmp .-4 ; 0x7e40 #ifdef __AVR_ATmega8__ LED_PORT ^= _BV(LED); #else LED_PIN |= _BV(LED); 7e44: 1d 9a sbi 0x03, 5 ; 3 } #endif // Watchdog functions. These are only safe with interrupts turned off. void watchdogReset() { __asm__ __volatile__ ( 7e46: a8 95 wdr LED_PORT ^= _BV(LED); #else LED_PIN |= _BV(LED); #endif watchdogReset(); } while (--count); 7e48: 81 50 subi r24, 0x01 ; 1 7e4a: a9 f7 brne .-22 ; 0x7e36 /* 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); 7e4c: 99 24 eor r9, r9 7e4e: 93 94 inc r9 __boot_page_fill_short((uint16_t)(void*)addrPtr,a); addrPtr += 2; } while (--ch); // Write from programming buffer __boot_page_write_short((uint16_t)(void*)address); 7e50: a5 e0 ldi r26, 0x05 ; 5 7e52: aa 2e mov r10, r26 boot_spm_busy_wait(); #if defined(RWWSRE) // Reenable read access to flash boot_rww_enable(); 7e54: f1 e1 ldi r31, 0x11 ; 17 7e56: bf 2e mov r11, r31 #endif /* Forever loop */ for (;;) { /* get character from UART */ ch = getch(); 7e58: 9d d0 rcall .+314 ; 0x7f94 if(ch == STK_GET_PARAMETER) { 7e5a: 81 34 cpi r24, 0x41 ; 65 7e5c: 21 f4 brne .+8 ; 0x7e66 // GET PARAMETER returns a generic 0x03 reply - enough to keep Avrdude happy getNch(1); 7e5e: 81 e0 ldi r24, 0x01 ; 1 7e60: af d0 rcall .+350 ; 0x7fc0 putch(0x03); 7e62: 83 e0 ldi r24, 0x03 ; 3 7e64: 1f c0 rjmp .+62 ; 0x7ea4 } else if(ch == STK_SET_DEVICE) { 7e66: 82 34 cpi r24, 0x42 ; 66 7e68: 11 f4 brne .+4 ; 0x7e6e // SET DEVICE is ignored getNch(20); 7e6a: 84 e1 ldi r24, 0x14 ; 20 7e6c: 03 c0 rjmp .+6 ; 0x7e74 } else if(ch == STK_SET_DEVICE_EXT) { 7e6e: 85 34 cpi r24, 0x45 ; 69 7e70: 19 f4 brne .+6 ; 0x7e78 // SET DEVICE EXT is ignored getNch(5); 7e72: 85 e0 ldi r24, 0x05 ; 5 7e74: a5 d0 rcall .+330 ; 0x7fc0 7e76: 83 c0 rjmp .+262 ; 0x7f7e } else if(ch == STK_LOAD_ADDRESS) { 7e78: 85 35 cpi r24, 0x55 ; 85 7e7a: 79 f4 brne .+30 ; 0x7e9a // LOAD ADDRESS uint16_t newAddress; newAddress = getch(); 7e7c: 8b d0 rcall .+278 ; 0x7f94 newAddress = (newAddress & 0xff) | (getch() << 8); 7e7e: e8 2e mov r14, r24 7e80: ff 24 eor r15, r15 7e82: 88 d0 rcall .+272 ; 0x7f94 7e84: 08 2f mov r16, r24 7e86: 10 e0 ldi r17, 0x00 ; 0 7e88: 10 2f mov r17, r16 7e8a: 00 27 eor r16, r16 7e8c: 0e 29 or r16, r14 7e8e: 1f 29 or r17, r15 #ifdef RAMPZ // Transfer top bit to RAMPZ RAMPZ = (newAddress & 0x8000) ? 1 : 0; #endif newAddress += newAddress; // Convert from word address to byte address 7e90: 00 0f add r16, r16 7e92: 11 1f adc r17, r17 address = newAddress; verifySpace(); 7e94: 8d d0 rcall .+282 ; 0x7fb0 7e96: 68 01 movw r12, r16 7e98: 72 c0 rjmp .+228 ; 0x7f7e } else if(ch == STK_UNIVERSAL) { 7e9a: 86 35 cpi r24, 0x56 ; 86 7e9c: 29 f4 brne .+10 ; 0x7ea8 // UNIVERSAL command is ignored getNch(4); 7e9e: 84 e0 ldi r24, 0x04 ; 4 7ea0: 8f d0 rcall .+286 ; 0x7fc0 putch(0x00); 7ea2: 80 e0 ldi r24, 0x00 ; 0 7ea4: 6f d0 rcall .+222 ; 0x7f84 7ea6: 6b c0 rjmp .+214 ; 0x7f7e } /* Write memory, length is big endian and is in bytes */ else if(ch == STK_PROG_PAGE) { 7ea8: 84 36 cpi r24, 0x64 ; 100 7eaa: 09 f0 breq .+2 ; 0x7eae 7eac: 42 c0 rjmp .+132 ; 0x7f32 // PROGRAM PAGE - we support flash programming only, not EEPROM uint8_t *bufPtr; uint16_t addrPtr; getch(); /* getlen() */ 7eae: 72 d0 rcall .+228 ; 0x7f94 length = getch(); 7eb0: 71 d0 rcall .+226 ; 0x7f94 7eb2: 08 2f mov r16, r24 getch(); 7eb4: 6f d0 rcall .+222 ; 0x7f94 // If we are in RWW section, immediately start page erase if (address < NRWWSTART) __boot_page_erase_short((uint16_t)(void*)address); 7eb6: 80 e0 ldi r24, 0x00 ; 0 7eb8: c8 16 cp r12, r24 7eba: 80 e7 ldi r24, 0x70 ; 112 7ebc: d8 06 cpc r13, r24 7ebe: 20 f4 brcc .+8 ; 0x7ec8 7ec0: 83 e0 ldi r24, 0x03 ; 3 7ec2: f6 01 movw r30, r12 7ec4: 87 bf out 0x37, r24 ; 55 7ec6: e8 95 spm 7ec8: c0 e0 ldi r28, 0x00 ; 0 7eca: d1 e0 ldi r29, 0x01 ; 1 // While that is going on, read in page contents bufPtr = buff; do *bufPtr++ = getch(); 7ecc: 63 d0 rcall .+198 ; 0x7f94 7ece: 89 93 st Y+, r24 while (--length); 7ed0: 0c 17 cp r16, r28 7ed2: e1 f7 brne .-8 ; 0x7ecc // If we are in NRWW section, page erase has to be delayed until now. // Todo: Take RAMPZ into account if (address >= NRWWSTART) __boot_page_erase_short((uint16_t)(void*)address); 7ed4: f0 e0 ldi r31, 0x00 ; 0 7ed6: cf 16 cp r12, r31 7ed8: f0 e7 ldi r31, 0x70 ; 112 7eda: df 06 cpc r13, r31 7edc: 20 f0 brcs .+8 ; 0x7ee6 7ede: 83 e0 ldi r24, 0x03 ; 3 7ee0: f6 01 movw r30, r12 7ee2: 87 bf out 0x37, r24 ; 55 7ee4: e8 95 spm // Read command terminator, start reply verifySpace(); 7ee6: 64 d0 rcall .+200 ; 0x7fb0 // If only a partial page is to be programmed, the erase might not be complete. // So check that here boot_spm_busy_wait(); 7ee8: 07 b6 in r0, 0x37 ; 55 7eea: 00 fc sbrc r0, 0 7eec: fd cf rjmp .-6 ; 0x7ee8 7eee: a6 01 movw r20, r12 7ef0: a0 e0 ldi r26, 0x00 ; 0 7ef2: b1 e0 ldi r27, 0x01 ; 1 bufPtr = buff; addrPtr = (uint16_t)(void*)address; ch = SPM_PAGESIZE / 2; do { uint16_t a; a = *bufPtr++; 7ef4: 2c 91 ld r18, X 7ef6: 30 e0 ldi r19, 0x00 ; 0 a |= (*bufPtr++) << 8; 7ef8: 11 96 adiw r26, 0x01 ; 1 7efa: 8c 91 ld r24, X 7efc: 11 97 sbiw r26, 0x01 ; 1 7efe: 90 e0 ldi r25, 0x00 ; 0 7f00: 98 2f mov r25, r24 7f02: 88 27 eor r24, r24 7f04: 82 2b or r24, r18 7f06: 93 2b or r25, r19 #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) { 7f08: 12 96 adiw r26, 0x02 ; 2 ch = SPM_PAGESIZE / 2; do { uint16_t a; a = *bufPtr++; a |= (*bufPtr++) << 8; __boot_page_fill_short((uint16_t)(void*)addrPtr,a); 7f0a: fa 01 movw r30, r20 7f0c: 0c 01 movw r0, r24 7f0e: 97 be out 0x37, r9 ; 55 7f10: e8 95 spm 7f12: 11 24 eor r1, r1 addrPtr += 2; 7f14: 4e 5f subi r20, 0xFE ; 254 7f16: 5f 4f sbci r21, 0xFF ; 255 } while (--ch); 7f18: f1 e0 ldi r31, 0x01 ; 1 7f1a: a0 38 cpi r26, 0x80 ; 128 7f1c: bf 07 cpc r27, r31 7f1e: 51 f7 brne .-44 ; 0x7ef4 // Write from programming buffer __boot_page_write_short((uint16_t)(void*)address); 7f20: f6 01 movw r30, r12 7f22: a7 be out 0x37, r10 ; 55 7f24: e8 95 spm boot_spm_busy_wait(); 7f26: 07 b6 in r0, 0x37 ; 55 7f28: 00 fc sbrc r0, 0 7f2a: fd cf rjmp .-6 ; 0x7f26 #if defined(RWWSRE) // Reenable read access to flash boot_rww_enable(); 7f2c: b7 be out 0x37, r11 ; 55 7f2e: e8 95 spm 7f30: 26 c0 rjmp .+76 ; 0x7f7e #endif } /* Read memory block mode, length is big endian. */ else if(ch == STK_READ_PAGE) { 7f32: 84 37 cpi r24, 0x74 ; 116 7f34: b1 f4 brne .+44 ; 0x7f62 // READ PAGE - we only read flash getch(); /* getlen() */ 7f36: 2e d0 rcall .+92 ; 0x7f94 length = getch(); 7f38: 2d d0 rcall .+90 ; 0x7f94 7f3a: f8 2e mov r15, r24 getch(); 7f3c: 2b d0 rcall .+86 ; 0x7f94 verifySpace(); 7f3e: 38 d0 rcall .+112 ; 0x7fb0 7f40: f6 01 movw r30, r12 7f42: ef 2c mov r14, r15 putch(result); address++; } while (--length); #else do putch(pgm_read_byte_near(address++)); 7f44: 8f 01 movw r16, r30 7f46: 0f 5f subi r16, 0xFF ; 255 7f48: 1f 4f sbci r17, 0xFF ; 255 7f4a: 84 91 lpm r24, Z+ 7f4c: 1b d0 rcall .+54 ; 0x7f84 while (--length); 7f4e: ea 94 dec r14 7f50: f8 01 movw r30, r16 7f52: c1 f7 brne .-16 ; 0x7f44 #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) { 7f54: 08 94 sec 7f56: c1 1c adc r12, r1 7f58: d1 1c adc r13, r1 7f5a: fa 94 dec r15 7f5c: cf 0c add r12, r15 7f5e: d1 1c adc r13, r1 7f60: 0e c0 rjmp .+28 ; 0x7f7e #endif #endif } /* Get device signature bytes */ else if(ch == STK_READ_SIGN) { 7f62: 85 37 cpi r24, 0x75 ; 117 7f64: 39 f4 brne .+14 ; 0x7f74 // READ SIGN - return what Avrdude wants to hear verifySpace(); 7f66: 24 d0 rcall .+72 ; 0x7fb0 putch(SIGNATURE_0); 7f68: 8e e1 ldi r24, 0x1E ; 30 7f6a: 0c d0 rcall .+24 ; 0x7f84 putch(SIGNATURE_1); 7f6c: 85 e9 ldi r24, 0x95 ; 149 7f6e: 0a d0 rcall .+20 ; 0x7f84 putch(SIGNATURE_2); 7f70: 8f e0 ldi r24, 0x0F ; 15 7f72: 98 cf rjmp .-208 ; 0x7ea4 } else if (ch == 'Q') { 7f74: 81 35 cpi r24, 0x51 ; 81 7f76: 11 f4 brne .+4 ; 0x7f7c // Adaboot no-wait mod watchdogConfig(WATCHDOG_16MS); 7f78: 88 e0 ldi r24, 0x08 ; 8 7f7a: 14 d0 rcall .+40 ; 0x7fa4 verifySpace(); } else { // This covers the response to commands like STK_ENTER_PROGMODE verifySpace(); 7f7c: 19 d0 rcall .+50 ; 0x7fb0 } putch(STK_OK); 7f7e: 80 e1 ldi r24, 0x10 ; 16 7f80: 01 d0 rcall .+2 ; 0x7f84 7f82: 6a cf rjmp .-300 ; 0x7e58 00007f84 : } } void putch(char ch) { 7f84: 98 2f mov r25, r24 #ifndef SOFT_UART while (!(UCSR0A & _BV(UDRE0))); 7f86: 80 91 c0 00 lds r24, 0x00C0 7f8a: 85 ff sbrs r24, 5 7f8c: fc cf rjmp .-8 ; 0x7f86 UDR0 = ch; 7f8e: 90 93 c6 00 sts 0x00C6, r25 [uartBit] "I" (UART_TX_BIT) : "r25" ); #endif } 7f92: 08 95 ret 00007f94 : } #endif // Watchdog functions. These are only safe with interrupts turned off. void watchdogReset() { __asm__ __volatile__ ( 7f94: a8 95 wdr [uartBit] "I" (UART_RX_BIT) : "r25" ); #else while(!(UCSR0A & _BV(RXC0))); 7f96: 80 91 c0 00 lds r24, 0x00C0 7f9a: 87 ff sbrs r24, 7 7f9c: fc cf rjmp .-8 ; 0x7f96 ch = UDR0; 7f9e: 80 91 c6 00 lds r24, 0x00C6 LED_PIN |= _BV(LED); #endif #endif return ch; } 7fa2: 08 95 ret 00007fa4 : "wdr\n" ); } void watchdogConfig(uint8_t x) { WDTCSR = _BV(WDCE) | _BV(WDE); 7fa4: e0 e6 ldi r30, 0x60 ; 96 7fa6: f0 e0 ldi r31, 0x00 ; 0 7fa8: 98 e1 ldi r25, 0x18 ; 24 7faa: 90 83 st Z, r25 WDTCSR = x; 7fac: 80 83 st Z, r24 } 7fae: 08 95 ret 00007fb0 : do getch(); while (--count); verifySpace(); } void verifySpace() { if (getch() != CRC_EOP) { 7fb0: f1 df rcall .-30 ; 0x7f94 7fb2: 80 32 cpi r24, 0x20 ; 32 7fb4: 19 f0 breq .+6 ; 0x7fbc watchdogConfig(WATCHDOG_16MS); // shorten WD timeout 7fb6: 88 e0 ldi r24, 0x08 ; 8 7fb8: f5 df rcall .-22 ; 0x7fa4 7fba: ff cf rjmp .-2 ; 0x7fba while (1) // and busy-loop so that WD causes ; // a reset and app start. } putch(STK_INSYNC); 7fbc: 84 e1 ldi r24, 0x14 ; 20 } 7fbe: e2 cf rjmp .-60 ; 0x7f84 00007fc0 : ::[count] "M" (UART_B_VALUE) ); } #endif void getNch(uint8_t count) { 7fc0: 1f 93 push r17 7fc2: 18 2f mov r17, r24 do getch(); while (--count); 7fc4: e7 df rcall .-50 ; 0x7f94 7fc6: 11 50 subi r17, 0x01 ; 1 7fc8: e9 f7 brne .-6 ; 0x7fc4 verifySpace(); 7fca: f2 df rcall .-28 ; 0x7fb0 } 7fcc: 1f 91 pop r17 7fce: 08 95 ret 00007fd0 : WDTCSR = _BV(WDCE) | _BV(WDE); WDTCSR = x; } void appStart() { watchdogConfig(WATCHDOG_OFF); 7fd0: 80 e0 ldi r24, 0x00 ; 0 7fd2: e8 df rcall .-48 ; 0x7fa4 __asm__ __volatile__ ( 7fd4: ee 27 eor r30, r30 7fd6: ff 27 eor r31, r31 7fd8: 09 94 ijmp