: #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) { 1e00: 11 24 eor r1, r1 // // If not, uncomment the following instructions: // cli(); asm volatile ("clr __zero_reg__"); #ifdef __AVR_ATmega8__ SP=RAMEND; // This is done by hardware reset 1e02: 8f e5 ldi r24, 0x5F ; 95 1e04: 94 e0 ldi r25, 0x04 ; 4 1e06: 9e bf out 0x3e, r25 ; 62 1e08: 8d bf out 0x3d, r24 ; 61 #endif // Adaboot no-wait mod ch = MCUSR; 1e0a: 84 b7 in r24, 0x34 ; 52 MCUSR = 0; 1e0c: 14 be out 0x34, r1 ; 52 if (!(ch & _BV(EXTRF))) appStart(); 1e0e: 81 ff sbrs r24, 1 1e10: e2 d0 rcall .+452 ; 0x1fd6 #if LED_START_FLASHES > 0 // Set up Timer 1 for timeout counter TCCR1B = _BV(CS12) | _BV(CS10); // div 1024 1e12: 85 e0 ldi r24, 0x05 ; 5 1e14: 8e bd out 0x2e, r24 ; 46 #endif #ifndef SOFT_UART #ifdef __AVR_ATmega8__ UCSRA = _BV(U2X); //Double speed mode USART 1e16: 82 e0 ldi r24, 0x02 ; 2 1e18: 8b b9 out 0x0b, r24 ; 11 UCSRB = _BV(RXEN) | _BV(TXEN); // enable Rx & Tx 1e1a: 88 e1 ldi r24, 0x18 ; 24 1e1c: 8a b9 out 0x0a, r24 ; 10 UCSRC = _BV(URSEL) | _BV(UCSZ1) | _BV(UCSZ0); // config USART; 8N1 1e1e: 86 e8 ldi r24, 0x86 ; 134 1e20: 80 bd out 0x20, r24 ; 32 UBRRL = (uint8_t)( (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 ); 1e22: 80 e1 ldi r24, 0x10 ; 16 1e24: 89 b9 out 0x09, r24 ; 9 UBRR0L = (uint8_t)( (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 ); #endif #endif // Set up watchdog to trigger after 500ms watchdogConfig(WATCHDOG_1S); 1e26: 8e e0 ldi r24, 0x0E ; 14 1e28: c2 d0 rcall .+388 ; 0x1fae /* Set LED pin as output */ LED_DDR |= _BV(LED); 1e2a: bd 9a sbi 0x17, 5 ; 23 1e2c: 96 e0 ldi r25, 0x06 ; 6 } #if LED_START_FLASHES > 0 void flash_led(uint8_t count) { do { TCNT1 = -(F_CPU/(1024*16)); 1e2e: 20 e3 ldi r18, 0x30 ; 48 1e30: 3c ef ldi r19, 0xFC ; 252 TIFR1 = _BV(TOV1); 1e32: 54 e0 ldi r21, 0x04 ; 4 while(!(TIFR1 & _BV(TOV1))); #ifdef __AVR_ATmega8__ LED_PORT ^= _BV(LED); 1e34: 40 e2 ldi r20, 0x20 ; 32 } #if LED_START_FLASHES > 0 void flash_led(uint8_t count) { do { TCNT1 = -(F_CPU/(1024*16)); 1e36: 3d bd out 0x2d, r19 ; 45 1e38: 2c bd out 0x2c, r18 ; 44 TIFR1 = _BV(TOV1); 1e3a: 58 bf out 0x38, r21 ; 56 while(!(TIFR1 & _BV(TOV1))); 1e3c: 08 b6 in r0, 0x38 ; 56 1e3e: 02 fe sbrs r0, 2 1e40: fd cf rjmp .-6 ; 0x1e3c #ifdef __AVR_ATmega8__ LED_PORT ^= _BV(LED); 1e42: 88 b3 in r24, 0x18 ; 24 1e44: 84 27 eor r24, r20 1e46: 88 bb out 0x18, r24 ; 24 } #endif // Watchdog functions. These are only safe with interrupts turned off. void watchdogReset() { __asm__ __volatile__ ( 1e48: a8 95 wdr LED_PORT ^= _BV(LED); #else LED_PIN |= _BV(LED); #endif watchdogReset(); } while (--count); 1e4a: 91 50 subi r25, 0x01 ; 1 1e4c: a1 f7 brne .-24 ; 0x1e36 1e4e: cc 24 eor r12, r12 1e50: dd 24 eor r13, r13 ch = SPM_PAGESIZE / 2; do { uint16_t a; a = *bufPtr++; a |= (*bufPtr++) << 8; __boot_page_fill_short((uint16_t)(void*)addrPtr,a); 1e52: 88 24 eor r8, r8 1e54: 83 94 inc r8 addrPtr += 2; } while (--ch); // Write from programming buffer __boot_page_write_short((uint16_t)(void*)address); 1e56: b5 e0 ldi r27, 0x05 ; 5 1e58: ab 2e mov r10, r27 boot_spm_busy_wait(); #if defined(RWWSRE) // Reenable read access to flash boot_rww_enable(); 1e5a: a1 e1 ldi r26, 0x11 ; 17 1e5c: 9a 2e mov r9, r26 do *bufPtr++ = getch(); while (--length); // 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); 1e5e: f3 e0 ldi r31, 0x03 ; 3 1e60: bf 2e mov r11, r31 #endif /* Forever loop */ for (;;) { /* get character from UART */ ch = getch(); 1e62: 9e d0 rcall .+316 ; 0x1fa0 if(ch == STK_GET_PARAMETER) { 1e64: 81 34 cpi r24, 0x41 ; 65 1e66: 61 f4 brne .+24 ; 0x1e80 unsigned char which = getch(); 1e68: 9b d0 rcall .+310 ; 0x1fa0 1e6a: 08 2f mov r16, r24 verifySpace(); 1e6c: a4 d0 rcall .+328 ; 0x1fb6 if (which == 0x82) { 1e6e: 02 38 cpi r16, 0x82 ; 130 1e70: 11 f0 breq .+4 ; 0x1e76 /* * Send optiboot version as "minor SW version" */ putch(OPTIBOOT_MINVER); } else if (which == 0x81) { 1e72: 01 38 cpi r16, 0x81 ; 129 1e74: 11 f4 brne .+4 ; 0x1e7a putch(OPTIBOOT_MAJVER); 1e76: 84 e0 ldi r24, 0x04 ; 4 1e78: 01 c0 rjmp .+2 ; 0x1e7c } else { /* * GET PARAMETER returns a generic 0x03 reply for * other parameters - enough to keep Avrdude happy */ putch(0x03); 1e7a: 83 e0 ldi r24, 0x03 ; 3 1e7c: 8d d0 rcall .+282 ; 0x1f98 1e7e: 89 c0 rjmp .+274 ; 0x1f92 } } else if(ch == STK_SET_DEVICE) { 1e80: 82 34 cpi r24, 0x42 ; 66 1e82: 11 f4 brne .+4 ; 0x1e88 // SET DEVICE is ignored getNch(20); 1e84: 84 e1 ldi r24, 0x14 ; 20 1e86: 03 c0 rjmp .+6 ; 0x1e8e } else if(ch == STK_SET_DEVICE_EXT) { 1e88: 85 34 cpi r24, 0x45 ; 69 1e8a: 19 f4 brne .+6 ; 0x1e92 // SET DEVICE EXT is ignored getNch(5); 1e8c: 85 e0 ldi r24, 0x05 ; 5 1e8e: 9b d0 rcall .+310 ; 0x1fc6 1e90: 80 c0 rjmp .+256 ; 0x1f92 } else if(ch == STK_LOAD_ADDRESS) { 1e92: 85 35 cpi r24, 0x55 ; 85 1e94: 79 f4 brne .+30 ; 0x1eb4 // LOAD ADDRESS uint16_t newAddress; newAddress = getch(); 1e96: 84 d0 rcall .+264 ; 0x1fa0 newAddress = (newAddress & 0xff) | (getch() << 8); 1e98: e8 2e mov r14, r24 1e9a: ff 24 eor r15, r15 1e9c: 81 d0 rcall .+258 ; 0x1fa0 1e9e: 08 2f mov r16, r24 1ea0: 10 e0 ldi r17, 0x00 ; 0 1ea2: 10 2f mov r17, r16 1ea4: 00 27 eor r16, r16 1ea6: 0e 29 or r16, r14 1ea8: 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 1eaa: 00 0f add r16, r16 1eac: 11 1f adc r17, r17 address = newAddress; verifySpace(); 1eae: 83 d0 rcall .+262 ; 0x1fb6 1eb0: 68 01 movw r12, r16 1eb2: 6f c0 rjmp .+222 ; 0x1f92 } else if(ch == STK_UNIVERSAL) { 1eb4: 86 35 cpi r24, 0x56 ; 86 1eb6: 21 f4 brne .+8 ; 0x1ec0 // UNIVERSAL command is ignored getNch(4); 1eb8: 84 e0 ldi r24, 0x04 ; 4 1eba: 85 d0 rcall .+266 ; 0x1fc6 putch(0x00); 1ebc: 80 e0 ldi r24, 0x00 ; 0 1ebe: de cf rjmp .-68 ; 0x1e7c } /* Write memory, length is big endian and is in bytes */ else if(ch == STK_PROG_PAGE) { 1ec0: 84 36 cpi r24, 0x64 ; 100 1ec2: 09 f0 breq .+2 ; 0x1ec6 1ec4: 40 c0 rjmp .+128 ; 0x1f46 // PROGRAM PAGE - we support flash programming only, not EEPROM uint8_t *bufPtr; uint16_t addrPtr; getch(); /* getlen() */ 1ec6: 6c d0 rcall .+216 ; 0x1fa0 length = getch(); 1ec8: 6b d0 rcall .+214 ; 0x1fa0 1eca: 08 2f mov r16, r24 getch(); 1ecc: 69 d0 rcall .+210 ; 0x1fa0 // If we are in RWW section, immediately start page erase if (address < NRWWSTART) __boot_page_erase_short((uint16_t)(void*)address); 1ece: 80 e0 ldi r24, 0x00 ; 0 1ed0: c8 16 cp r12, r24 1ed2: 88 e1 ldi r24, 0x18 ; 24 1ed4: d8 06 cpc r13, r24 1ed6: 18 f4 brcc .+6 ; 0x1ede 1ed8: f6 01 movw r30, r12 1eda: b7 be out 0x37, r11 ; 55 1edc: e8 95 spm 1ede: c0 e0 ldi r28, 0x00 ; 0 1ee0: d1 e0 ldi r29, 0x01 ; 1 // While that is going on, read in page contents bufPtr = buff; do *bufPtr++ = getch(); 1ee2: 5e d0 rcall .+188 ; 0x1fa0 1ee4: 89 93 st Y+, r24 while (--length); 1ee6: 0c 17 cp r16, r28 1ee8: e1 f7 brne .-8 ; 0x1ee2 // 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); 1eea: f0 e0 ldi r31, 0x00 ; 0 1eec: cf 16 cp r12, r31 1eee: f8 e1 ldi r31, 0x18 ; 24 1ef0: df 06 cpc r13, r31 1ef2: 18 f0 brcs .+6 ; 0x1efa 1ef4: f6 01 movw r30, r12 1ef6: b7 be out 0x37, r11 ; 55 1ef8: e8 95 spm // Read command terminator, start reply verifySpace(); 1efa: 5d d0 rcall .+186 ; 0x1fb6 // If only a partial page is to be programmed, the erase might not be complete. // So check that here boot_spm_busy_wait(); 1efc: 07 b6 in r0, 0x37 ; 55 1efe: 00 fc sbrc r0, 0 1f00: fd cf rjmp .-6 ; 0x1efc 1f02: a6 01 movw r20, r12 1f04: a0 e0 ldi r26, 0x00 ; 0 1f06: b1 e0 ldi r27, 0x01 ; 1 bufPtr = buff; addrPtr = (uint16_t)(void*)address; ch = SPM_PAGESIZE / 2; do { uint16_t a; a = *bufPtr++; 1f08: 2c 91 ld r18, X 1f0a: 30 e0 ldi r19, 0x00 ; 0 a |= (*bufPtr++) << 8; 1f0c: 11 96 adiw r26, 0x01 ; 1 1f0e: 8c 91 ld r24, X 1f10: 11 97 sbiw r26, 0x01 ; 1 1f12: 90 e0 ldi r25, 0x00 ; 0 1f14: 98 2f mov r25, r24 1f16: 88 27 eor r24, r24 1f18: 82 2b or r24, r18 1f1a: 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) { 1f1c: 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); 1f1e: fa 01 movw r30, r20 1f20: 0c 01 movw r0, r24 1f22: 87 be out 0x37, r8 ; 55 1f24: e8 95 spm 1f26: 11 24 eor r1, r1 addrPtr += 2; 1f28: 4e 5f subi r20, 0xFE ; 254 1f2a: 5f 4f sbci r21, 0xFF ; 255 } while (--ch); 1f2c: f1 e0 ldi r31, 0x01 ; 1 1f2e: a0 34 cpi r26, 0x40 ; 64 1f30: bf 07 cpc r27, r31 1f32: 51 f7 brne .-44 ; 0x1f08 // Write from programming buffer __boot_page_write_short((uint16_t)(void*)address); 1f34: f6 01 movw r30, r12 1f36: a7 be out 0x37, r10 ; 55 1f38: e8 95 spm boot_spm_busy_wait(); 1f3a: 07 b6 in r0, 0x37 ; 55 1f3c: 00 fc sbrc r0, 0 1f3e: fd cf rjmp .-6 ; 0x1f3a #if defined(RWWSRE) // Reenable read access to flash boot_rww_enable(); 1f40: 97 be out 0x37, r9 ; 55 1f42: e8 95 spm 1f44: 26 c0 rjmp .+76 ; 0x1f92 #endif } /* Read memory block mode, length is big endian. */ else if(ch == STK_READ_PAGE) { 1f46: 84 37 cpi r24, 0x74 ; 116 1f48: b1 f4 brne .+44 ; 0x1f76 // READ PAGE - we only read flash getch(); /* getlen() */ 1f4a: 2a d0 rcall .+84 ; 0x1fa0 length = getch(); 1f4c: 29 d0 rcall .+82 ; 0x1fa0 1f4e: f8 2e mov r15, r24 getch(); 1f50: 27 d0 rcall .+78 ; 0x1fa0 verifySpace(); 1f52: 31 d0 rcall .+98 ; 0x1fb6 1f54: f6 01 movw r30, r12 1f56: ef 2c mov r14, r15 putch(result); address++; } while (--length); #else do putch(pgm_read_byte_near(address++)); 1f58: 8f 01 movw r16, r30 1f5a: 0f 5f subi r16, 0xFF ; 255 1f5c: 1f 4f sbci r17, 0xFF ; 255 1f5e: 84 91 lpm r24, Z+ 1f60: 1b d0 rcall .+54 ; 0x1f98 while (--length); 1f62: ea 94 dec r14 1f64: f8 01 movw r30, r16 1f66: c1 f7 brne .-16 ; 0x1f58 #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) { 1f68: 08 94 sec 1f6a: c1 1c adc r12, r1 1f6c: d1 1c adc r13, r1 1f6e: fa 94 dec r15 1f70: cf 0c add r12, r15 1f72: d1 1c adc r13, r1 1f74: 0e c0 rjmp .+28 ; 0x1f92 #endif #endif } /* Get device signature bytes */ else if(ch == STK_READ_SIGN) { 1f76: 85 37 cpi r24, 0x75 ; 117 1f78: 39 f4 brne .+14 ; 0x1f88 // READ SIGN - return what Avrdude wants to hear verifySpace(); 1f7a: 1d d0 rcall .+58 ; 0x1fb6 putch(SIGNATURE_0); 1f7c: 8e e1 ldi r24, 0x1E ; 30 1f7e: 0c d0 rcall .+24 ; 0x1f98 putch(SIGNATURE_1); 1f80: 83 e9 ldi r24, 0x93 ; 147 1f82: 0a d0 rcall .+20 ; 0x1f98 putch(SIGNATURE_2); 1f84: 87 e0 ldi r24, 0x07 ; 7 1f86: 7a cf rjmp .-268 ; 0x1e7c } else if (ch == 'Q') { 1f88: 81 35 cpi r24, 0x51 ; 81 1f8a: 11 f4 brne .+4 ; 0x1f90 // Adaboot no-wait mod watchdogConfig(WATCHDOG_16MS); 1f8c: 88 e0 ldi r24, 0x08 ; 8 1f8e: 0f d0 rcall .+30 ; 0x1fae verifySpace(); } else { // This covers the response to commands like STK_ENTER_PROGMODE verifySpace(); 1f90: 12 d0 rcall .+36 ; 0x1fb6 } putch(STK_OK); 1f92: 80 e1 ldi r24, 0x10 ; 16 1f94: 01 d0 rcall .+2 ; 0x1f98 1f96: 65 cf rjmp .-310 ; 0x1e62 00001f98 : } } void putch(char ch) { #ifndef SOFT_UART while (!(UCSR0A & _BV(UDRE0))); 1f98: 5d 9b sbis 0x0b, 5 ; 11 1f9a: fe cf rjmp .-4 ; 0x1f98 UDR0 = ch; 1f9c: 8c b9 out 0x0c, r24 ; 12 [uartBit] "I" (UART_TX_BIT) : "r25" ); #endif } 1f9e: 08 95 ret 00001fa0 : [uartBit] "I" (UART_RX_BIT) : "r25" ); #else while(!(UCSR0A & _BV(RXC0))) 1fa0: 5f 9b sbis 0x0b, 7 ; 11 1fa2: fe cf rjmp .-4 ; 0x1fa0 ; if (!(UCSR0A & _BV(FE0))) { 1fa4: 5c 99 sbic 0x0b, 4 ; 11 1fa6: 01 c0 rjmp .+2 ; 0x1faa } #endif // Watchdog functions. These are only safe with interrupts turned off. void watchdogReset() { __asm__ __volatile__ ( 1fa8: a8 95 wdr * don't care that an invalid char is returned...) */ watchdogReset(); } ch = UDR0; 1faa: 8c b1 in r24, 0x0c ; 12 LED_PIN |= _BV(LED); #endif #endif return ch; } 1fac: 08 95 ret 00001fae : "wdr\n" ); } void watchdogConfig(uint8_t x) { WDTCSR = _BV(WDCE) | _BV(WDE); 1fae: 98 e1 ldi r25, 0x18 ; 24 1fb0: 91 bd out 0x21, r25 ; 33 WDTCSR = x; 1fb2: 81 bd out 0x21, r24 ; 33 } 1fb4: 08 95 ret 00001fb6 : do getch(); while (--count); verifySpace(); } void verifySpace() { if (getch() != CRC_EOP) { 1fb6: f4 df rcall .-24 ; 0x1fa0 1fb8: 80 32 cpi r24, 0x20 ; 32 1fba: 19 f0 breq .+6 ; 0x1fc2 watchdogConfig(WATCHDOG_16MS); // shorten WD timeout 1fbc: 88 e0 ldi r24, 0x08 ; 8 1fbe: f7 df rcall .-18 ; 0x1fae 1fc0: ff cf rjmp .-2 ; 0x1fc0 while (1) // and busy-loop so that WD causes ; // a reset and app start. } putch(STK_INSYNC); 1fc2: 84 e1 ldi r24, 0x14 ; 20 } 1fc4: e9 cf rjmp .-46 ; 0x1f98 00001fc6 : ::[count] "M" (UART_B_VALUE) ); } #endif void getNch(uint8_t count) { 1fc6: 1f 93 push r17 1fc8: 18 2f mov r17, r24 do getch(); while (--count); 1fca: ea df rcall .-44 ; 0x1fa0 1fcc: 11 50 subi r17, 0x01 ; 1 1fce: e9 f7 brne .-6 ; 0x1fca verifySpace(); 1fd0: f2 df rcall .-28 ; 0x1fb6 } 1fd2: 1f 91 pop r17 1fd4: 08 95 ret 00001fd6 : WDTCSR = _BV(WDCE) | _BV(WDE); WDTCSR = x; } void appStart() { watchdogConfig(WATCHDOG_OFF); 1fd6: 80 e0 ldi r24, 0x00 ; 0 1fd8: ea df rcall .-44 ; 0x1fae __asm__ __volatile__ ( 1fda: ee 27 eor r30, r30 1fdc: ff 27 eor r31, r31 1fde: 09 94 ijmp