mirror of
https://github.com/arduino/Arduino.git
synced 2024-12-11 22:24:13 +01:00
00706284de
http://code.google.com/p/arduino/issues/detail?id=554 end of flash memory where they can be read (at least in theory) by device programmers, hex-file examination, or application programs. This is done by putting the version number in a separate section (".version"), and using linker/objcopy magic to locate that section as appropriate for the target chip. (See http://lists.gnu.org/archive/html/avr-gcc-list/2011-02/msg00016.html for some discussion on the details.) Start the version at 4.1 (the last "packaged" version of optiboot was called version 3, so the "top of source" would be 4.0, and adding the version number makes 4.1) Refactor LDSECTION in the Makefile to LDSECTIONS so that multiple section start addresses can be defined. Change the _isp makefile definitions to make the bootloader section readable (but not writable) by the application section. (This would need to be done elsewhere as well to handle all bootloader programming techniques. Notably Arduino's boards.txt Note that this change does not change the "code" portion of optiboot at all. The only diffs in the .hex files are the added version word at the end of flash memory.
557 lines
18 KiB
Plaintext
557 lines
18 KiB
Plaintext
|
|
optiboot_lilypad.elf: file format elf32-avr
|
|
|
|
Sections:
|
|
Idx Name Size VMA LMA File off Algn
|
|
0 .text 000001fc 00003e00 00003e00 00000054 2**1
|
|
CONTENTS, ALLOC, LOAD, READONLY, CODE
|
|
1 .version 00000002 00003ffe 00003ffe 00000250 2**0
|
|
CONTENTS, READONLY
|
|
2 .debug_aranges 00000028 00000000 00000000 00000252 2**0
|
|
CONTENTS, READONLY, DEBUGGING
|
|
3 .debug_pubnames 0000006a 00000000 00000000 0000027a 2**0
|
|
CONTENTS, READONLY, DEBUGGING
|
|
4 .debug_info 00000285 00000000 00000000 000002e4 2**0
|
|
CONTENTS, READONLY, DEBUGGING
|
|
5 .debug_abbrev 0000019f 00000000 00000000 00000569 2**0
|
|
CONTENTS, READONLY, DEBUGGING
|
|
6 .debug_line 00000453 00000000 00000000 00000708 2**0
|
|
CONTENTS, READONLY, DEBUGGING
|
|
7 .debug_frame 00000090 00000000 00000000 00000b5c 2**2
|
|
CONTENTS, READONLY, DEBUGGING
|
|
8 .debug_str 00000141 00000000 00000000 00000bec 2**0
|
|
CONTENTS, READONLY, DEBUGGING
|
|
9 .debug_loc 000001e1 00000000 00000000 00000d2d 2**0
|
|
CONTENTS, READONLY, DEBUGGING
|
|
10 .debug_ranges 00000068 00000000 00000000 00000f0e 2**0
|
|
CONTENTS, READONLY, DEBUGGING
|
|
|
|
Disassembly of section .text:
|
|
|
|
00003e00 <main>:
|
|
#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) {
|
|
3e00: 11 24 eor r1, r1
|
|
#ifdef __AVR_ATmega8__
|
|
SP=RAMEND; // This is done by hardware reset
|
|
#endif
|
|
|
|
// Adaboot no-wait mod
|
|
ch = MCUSR;
|
|
3e02: 84 b7 in r24, 0x34 ; 52
|
|
MCUSR = 0;
|
|
3e04: 14 be out 0x34, r1 ; 52
|
|
if (!(ch & _BV(EXTRF))) appStart();
|
|
3e06: 81 ff sbrs r24, 1
|
|
3e08: e6 d0 rcall .+460 ; 0x3fd6 <appStart>
|
|
|
|
#if LED_START_FLASHES > 0
|
|
// Set up Timer 1 for timeout counter
|
|
TCCR1B = _BV(CS12) | _BV(CS10); // div 1024
|
|
3e0a: 85 e0 ldi r24, 0x05 ; 5
|
|
3e0c: 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
|
|
3e10: 82 e0 ldi r24, 0x02 ; 2
|
|
3e12: 80 93 c0 00 sts 0x00C0, r24
|
|
UCSR0B = _BV(RXEN0) | _BV(TXEN0);
|
|
3e16: 88 e1 ldi r24, 0x18 ; 24
|
|
3e18: 80 93 c1 00 sts 0x00C1, r24
|
|
UCSR0C = _BV(UCSZ00) | _BV(UCSZ01);
|
|
3e1c: 86 e0 ldi r24, 0x06 ; 6
|
|
3e1e: 80 93 c2 00 sts 0x00C2, r24
|
|
UBRR0L = (uint8_t)( (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 );
|
|
3e22: 88 e0 ldi r24, 0x08 ; 8
|
|
3e24: 80 93 c4 00 sts 0x00C4, r24
|
|
#endif
|
|
#endif
|
|
|
|
// Set up watchdog to trigger after 500ms
|
|
watchdogConfig(WATCHDOG_1S);
|
|
3e28: 8e e0 ldi r24, 0x0E ; 14
|
|
3e2a: cf d0 rcall .+414 ; 0x3fca <watchdogConfig>
|
|
|
|
/* Set LED pin as output */
|
|
LED_DDR |= _BV(LED);
|
|
3e2c: 25 9a sbi 0x04, 5 ; 4
|
|
3e2e: 86 e0 ldi r24, 0x06 ; 6
|
|
}
|
|
|
|
#if LED_START_FLASHES > 0
|
|
void flash_led(uint8_t count) {
|
|
do {
|
|
TCNT1 = -(F_CPU/(1024*16));
|
|
3e30: 28 e1 ldi r18, 0x18 ; 24
|
|
3e32: 3e ef ldi r19, 0xFE ; 254
|
|
TIFR1 = _BV(TOV1);
|
|
3e34: 91 e0 ldi r25, 0x01 ; 1
|
|
}
|
|
|
|
#if LED_START_FLASHES > 0
|
|
void flash_led(uint8_t count) {
|
|
do {
|
|
TCNT1 = -(F_CPU/(1024*16));
|
|
3e36: 30 93 85 00 sts 0x0085, r19
|
|
3e3a: 20 93 84 00 sts 0x0084, r18
|
|
TIFR1 = _BV(TOV1);
|
|
3e3e: 96 bb out 0x16, r25 ; 22
|
|
while(!(TIFR1 & _BV(TOV1)));
|
|
3e40: b0 9b sbis 0x16, 0 ; 22
|
|
3e42: fe cf rjmp .-4 ; 0x3e40 <main+0x40>
|
|
#ifdef __AVR_ATmega8__
|
|
LED_PORT ^= _BV(LED);
|
|
#else
|
|
LED_PIN |= _BV(LED);
|
|
3e44: 1d 9a sbi 0x03, 5 ; 3
|
|
return getch();
|
|
}
|
|
|
|
// Watchdog functions. These are only safe with interrupts turned off.
|
|
void watchdogReset() {
|
|
__asm__ __volatile__ (
|
|
3e46: a8 95 wdr
|
|
LED_PORT ^= _BV(LED);
|
|
#else
|
|
LED_PIN |= _BV(LED);
|
|
#endif
|
|
watchdogReset();
|
|
} while (--count);
|
|
3e48: 81 50 subi r24, 0x01 ; 1
|
|
3e4a: a9 f7 brne .-22 ; 0x3e36 <main+0x36>
|
|
/* 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);
|
|
3e4c: dd 24 eor r13, r13
|
|
3e4e: d3 94 inc r13
|
|
__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);
|
|
3e50: a5 e0 ldi r26, 0x05 ; 5
|
|
3e52: ea 2e mov r14, r26
|
|
boot_spm_busy_wait();
|
|
|
|
#if defined(RWWSRE)
|
|
// Reenable read access to flash
|
|
boot_rww_enable();
|
|
3e54: f1 e1 ldi r31, 0x11 ; 17
|
|
3e56: ff 2e mov r15, r31
|
|
#endif
|
|
|
|
/* Forever loop */
|
|
for (;;) {
|
|
/* get character from UART */
|
|
ch = getch();
|
|
3e58: ab d0 rcall .+342 ; 0x3fb0 <getch>
|
|
|
|
if(ch == STK_GET_PARAMETER) {
|
|
3e5a: 81 34 cpi r24, 0x41 ; 65
|
|
3e5c: 21 f4 brne .+8 ; 0x3e66 <main+0x66>
|
|
// GET PARAMETER returns a generic 0x03 reply - enough to keep Avrdude happy
|
|
getNch(1);
|
|
3e5e: 81 e0 ldi r24, 0x01 ; 1
|
|
3e60: c5 d0 rcall .+394 ; 0x3fec <getNch>
|
|
putch(0x03);
|
|
3e62: 83 e0 ldi r24, 0x03 ; 3
|
|
3e64: 20 c0 rjmp .+64 ; 0x3ea6 <main+0xa6>
|
|
}
|
|
else if(ch == STK_SET_DEVICE) {
|
|
3e66: 82 34 cpi r24, 0x42 ; 66
|
|
3e68: 11 f4 brne .+4 ; 0x3e6e <main+0x6e>
|
|
// SET DEVICE is ignored
|
|
getNch(20);
|
|
3e6a: 84 e1 ldi r24, 0x14 ; 20
|
|
3e6c: 03 c0 rjmp .+6 ; 0x3e74 <main+0x74>
|
|
}
|
|
else if(ch == STK_SET_DEVICE_EXT) {
|
|
3e6e: 85 34 cpi r24, 0x45 ; 69
|
|
3e70: 19 f4 brne .+6 ; 0x3e78 <main+0x78>
|
|
// SET DEVICE EXT is ignored
|
|
getNch(5);
|
|
3e72: 85 e0 ldi r24, 0x05 ; 5
|
|
3e74: bb d0 rcall .+374 ; 0x3fec <getNch>
|
|
3e76: 91 c0 rjmp .+290 ; 0x3f9a <main+0x19a>
|
|
}
|
|
else if(ch == STK_LOAD_ADDRESS) {
|
|
3e78: 85 35 cpi r24, 0x55 ; 85
|
|
3e7a: 81 f4 brne .+32 ; 0x3e9c <main+0x9c>
|
|
// LOAD ADDRESS
|
|
uint16_t newAddress;
|
|
newAddress = getch();
|
|
3e7c: 99 d0 rcall .+306 ; 0x3fb0 <getch>
|
|
newAddress = (newAddress & 0xff) | (getch() << 8);
|
|
3e7e: 08 2f mov r16, r24
|
|
3e80: 10 e0 ldi r17, 0x00 ; 0
|
|
3e82: 96 d0 rcall .+300 ; 0x3fb0 <getch>
|
|
3e84: 90 e0 ldi r25, 0x00 ; 0
|
|
3e86: 98 2f mov r25, r24
|
|
3e88: 88 27 eor r24, r24
|
|
3e8a: 80 2b or r24, r16
|
|
3e8c: 91 2b or r25, r17
|
|
#ifdef RAMPZ
|
|
// Transfer top bit to RAMPZ
|
|
RAMPZ = (newAddress & 0x8000) ? 1 : 0;
|
|
#endif
|
|
newAddress += newAddress; // Convert from word address to byte address
|
|
3e8e: 88 0f add r24, r24
|
|
3e90: 99 1f adc r25, r25
|
|
address = newAddress;
|
|
3e92: 90 93 01 02 sts 0x0201, r25
|
|
3e96: 80 93 00 02 sts 0x0200, r24
|
|
3e9a: 7e c0 rjmp .+252 ; 0x3f98 <main+0x198>
|
|
verifySpace();
|
|
}
|
|
else if(ch == STK_UNIVERSAL) {
|
|
3e9c: 86 35 cpi r24, 0x56 ; 86
|
|
3e9e: 29 f4 brne .+10 ; 0x3eaa <main+0xaa>
|
|
// UNIVERSAL command is ignored
|
|
getNch(4);
|
|
3ea0: 84 e0 ldi r24, 0x04 ; 4
|
|
3ea2: a4 d0 rcall .+328 ; 0x3fec <getNch>
|
|
putch(0x00);
|
|
3ea4: 80 e0 ldi r24, 0x00 ; 0
|
|
3ea6: 7c d0 rcall .+248 ; 0x3fa0 <putch>
|
|
3ea8: 78 c0 rjmp .+240 ; 0x3f9a <main+0x19a>
|
|
}
|
|
/* Write memory, length is big endian and is in bytes */
|
|
else if(ch == STK_PROG_PAGE) {
|
|
3eaa: 84 36 cpi r24, 0x64 ; 100
|
|
3eac: 09 f0 breq .+2 ; 0x3eb0 <main+0xb0>
|
|
3eae: 4e c0 rjmp .+156 ; 0x3f4c <main+0x14c>
|
|
// PROGRAM PAGE - we support flash programming only, not EEPROM
|
|
uint8_t *bufPtr;
|
|
uint16_t addrPtr;
|
|
|
|
getLen();
|
|
3eb0: 87 d0 rcall .+270 ; 0x3fc0 <getLen>
|
|
|
|
// If we are in RWW section, immediately start page erase
|
|
if (address < NRWWSTART) __boot_page_erase_short((uint16_t)(void*)address);
|
|
3eb2: e0 91 00 02 lds r30, 0x0200
|
|
3eb6: f0 91 01 02 lds r31, 0x0201
|
|
3eba: 88 e3 ldi r24, 0x38 ; 56
|
|
3ebc: e0 30 cpi r30, 0x00 ; 0
|
|
3ebe: f8 07 cpc r31, r24
|
|
3ec0: 18 f4 brcc .+6 ; 0x3ec8 <main+0xc8>
|
|
3ec2: 83 e0 ldi r24, 0x03 ; 3
|
|
3ec4: 87 bf out 0x37, r24 ; 55
|
|
3ec6: e8 95 spm
|
|
3ec8: c0 e0 ldi r28, 0x00 ; 0
|
|
3eca: d1 e0 ldi r29, 0x01 ; 1
|
|
|
|
// While that is going on, read in page contents
|
|
bufPtr = buff;
|
|
do *bufPtr++ = getch();
|
|
3ecc: 71 d0 rcall .+226 ; 0x3fb0 <getch>
|
|
3ece: 89 93 st Y+, r24
|
|
while (--length);
|
|
3ed0: 80 91 02 02 lds r24, 0x0202
|
|
3ed4: 81 50 subi r24, 0x01 ; 1
|
|
3ed6: 80 93 02 02 sts 0x0202, r24
|
|
3eda: 88 23 and r24, r24
|
|
3edc: b9 f7 brne .-18 ; 0x3ecc <main+0xcc>
|
|
|
|
// 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);
|
|
3ede: e0 91 00 02 lds r30, 0x0200
|
|
3ee2: f0 91 01 02 lds r31, 0x0201
|
|
3ee6: 88 e3 ldi r24, 0x38 ; 56
|
|
3ee8: e0 30 cpi r30, 0x00 ; 0
|
|
3eea: f8 07 cpc r31, r24
|
|
3eec: 18 f0 brcs .+6 ; 0x3ef4 <main+0xf4>
|
|
3eee: 83 e0 ldi r24, 0x03 ; 3
|
|
3ef0: 87 bf out 0x37, r24 ; 55
|
|
3ef2: e8 95 spm
|
|
|
|
// Read command terminator, start reply
|
|
verifySpace();
|
|
3ef4: 75 d0 rcall .+234 ; 0x3fe0 <verifySpace>
|
|
|
|
// If only a partial page is to be programmed, the erase might not be complete.
|
|
// So check that here
|
|
boot_spm_busy_wait();
|
|
3ef6: 07 b6 in r0, 0x37 ; 55
|
|
3ef8: 00 fc sbrc r0, 0
|
|
3efa: fd cf rjmp .-6 ; 0x3ef6 <main+0xf6>
|
|
}
|
|
#endif
|
|
|
|
// Copy buffer into programming buffer
|
|
bufPtr = buff;
|
|
addrPtr = (uint16_t)(void*)address;
|
|
3efc: 40 91 00 02 lds r20, 0x0200
|
|
3f00: 50 91 01 02 lds r21, 0x0201
|
|
3f04: a0 e0 ldi r26, 0x00 ; 0
|
|
3f06: b1 e0 ldi r27, 0x01 ; 1
|
|
ch = SPM_PAGESIZE / 2;
|
|
do {
|
|
uint16_t a;
|
|
a = *bufPtr++;
|
|
3f08: 2c 91 ld r18, X
|
|
3f0a: 30 e0 ldi r19, 0x00 ; 0
|
|
a |= (*bufPtr++) << 8;
|
|
3f0c: 11 96 adiw r26, 0x01 ; 1
|
|
3f0e: 8c 91 ld r24, X
|
|
3f10: 11 97 sbiw r26, 0x01 ; 1
|
|
3f12: 90 e0 ldi r25, 0x00 ; 0
|
|
3f14: 98 2f mov r25, r24
|
|
3f16: 88 27 eor r24, r24
|
|
3f18: 82 2b or r24, r18
|
|
3f1a: 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) {
|
|
3f1c: 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);
|
|
3f1e: fa 01 movw r30, r20
|
|
3f20: 0c 01 movw r0, r24
|
|
3f22: d7 be out 0x37, r13 ; 55
|
|
3f24: e8 95 spm
|
|
3f26: 11 24 eor r1, r1
|
|
addrPtr += 2;
|
|
3f28: 4e 5f subi r20, 0xFE ; 254
|
|
3f2a: 5f 4f sbci r21, 0xFF ; 255
|
|
} while (--ch);
|
|
3f2c: f1 e0 ldi r31, 0x01 ; 1
|
|
3f2e: a0 38 cpi r26, 0x80 ; 128
|
|
3f30: bf 07 cpc r27, r31
|
|
3f32: 51 f7 brne .-44 ; 0x3f08 <main+0x108>
|
|
|
|
// Write from programming buffer
|
|
__boot_page_write_short((uint16_t)(void*)address);
|
|
3f34: e0 91 00 02 lds r30, 0x0200
|
|
3f38: f0 91 01 02 lds r31, 0x0201
|
|
3f3c: e7 be out 0x37, r14 ; 55
|
|
3f3e: e8 95 spm
|
|
boot_spm_busy_wait();
|
|
3f40: 07 b6 in r0, 0x37 ; 55
|
|
3f42: 00 fc sbrc r0, 0
|
|
3f44: fd cf rjmp .-6 ; 0x3f40 <main+0x140>
|
|
|
|
#if defined(RWWSRE)
|
|
// Reenable read access to flash
|
|
boot_rww_enable();
|
|
3f46: f7 be out 0x37, r15 ; 55
|
|
3f48: e8 95 spm
|
|
3f4a: 27 c0 rjmp .+78 ; 0x3f9a <main+0x19a>
|
|
#endif
|
|
|
|
}
|
|
/* Read memory block mode, length is big endian. */
|
|
else if(ch == STK_READ_PAGE) {
|
|
3f4c: 84 37 cpi r24, 0x74 ; 116
|
|
3f4e: b9 f4 brne .+46 ; 0x3f7e <main+0x17e>
|
|
// READ PAGE - we only read flash
|
|
getLen();
|
|
3f50: 37 d0 rcall .+110 ; 0x3fc0 <getLen>
|
|
verifySpace();
|
|
3f52: 46 d0 rcall .+140 ; 0x3fe0 <verifySpace>
|
|
putch(result);
|
|
address++;
|
|
}
|
|
while (--length);
|
|
#else
|
|
do putch(pgm_read_byte_near(address++));
|
|
3f54: e0 91 00 02 lds r30, 0x0200
|
|
3f58: f0 91 01 02 lds r31, 0x0201
|
|
3f5c: 31 96 adiw r30, 0x01 ; 1
|
|
3f5e: f0 93 01 02 sts 0x0201, r31
|
|
3f62: e0 93 00 02 sts 0x0200, r30
|
|
3f66: 31 97 sbiw r30, 0x01 ; 1
|
|
3f68: e4 91 lpm r30, Z+
|
|
3f6a: 8e 2f mov r24, r30
|
|
3f6c: 19 d0 rcall .+50 ; 0x3fa0 <putch>
|
|
while (--length);
|
|
3f6e: 80 91 02 02 lds r24, 0x0202
|
|
3f72: 81 50 subi r24, 0x01 ; 1
|
|
3f74: 80 93 02 02 sts 0x0202, r24
|
|
3f78: 88 23 and r24, r24
|
|
3f7a: 61 f7 brne .-40 ; 0x3f54 <main+0x154>
|
|
3f7c: 0e c0 rjmp .+28 ; 0x3f9a <main+0x19a>
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
/* Get device signature bytes */
|
|
else if(ch == STK_READ_SIGN) {
|
|
3f7e: 85 37 cpi r24, 0x75 ; 117
|
|
3f80: 39 f4 brne .+14 ; 0x3f90 <main+0x190>
|
|
// READ SIGN - return what Avrdude wants to hear
|
|
verifySpace();
|
|
3f82: 2e d0 rcall .+92 ; 0x3fe0 <verifySpace>
|
|
putch(SIGNATURE_0);
|
|
3f84: 8e e1 ldi r24, 0x1E ; 30
|
|
3f86: 0c d0 rcall .+24 ; 0x3fa0 <putch>
|
|
putch(SIGNATURE_1);
|
|
3f88: 84 e9 ldi r24, 0x94 ; 148
|
|
3f8a: 0a d0 rcall .+20 ; 0x3fa0 <putch>
|
|
putch(SIGNATURE_2);
|
|
3f8c: 86 e0 ldi r24, 0x06 ; 6
|
|
3f8e: 8b cf rjmp .-234 ; 0x3ea6 <main+0xa6>
|
|
}
|
|
else if (ch == 'Q') {
|
|
3f90: 81 35 cpi r24, 0x51 ; 81
|
|
3f92: 11 f4 brne .+4 ; 0x3f98 <main+0x198>
|
|
// Adaboot no-wait mod
|
|
watchdogConfig(WATCHDOG_16MS);
|
|
3f94: 88 e0 ldi r24, 0x08 ; 8
|
|
3f96: 19 d0 rcall .+50 ; 0x3fca <watchdogConfig>
|
|
verifySpace();
|
|
}
|
|
else {
|
|
// This covers the response to commands like STK_ENTER_PROGMODE
|
|
verifySpace();
|
|
3f98: 23 d0 rcall .+70 ; 0x3fe0 <verifySpace>
|
|
}
|
|
putch(STK_OK);
|
|
3f9a: 80 e1 ldi r24, 0x10 ; 16
|
|
3f9c: 01 d0 rcall .+2 ; 0x3fa0 <putch>
|
|
3f9e: 5c cf rjmp .-328 ; 0x3e58 <main+0x58>
|
|
|
|
00003fa0 <putch>:
|
|
}
|
|
}
|
|
|
|
void putch(char ch) {
|
|
3fa0: 98 2f mov r25, r24
|
|
#ifndef SOFT_UART
|
|
while (!(UCSR0A & _BV(UDRE0)));
|
|
3fa2: 80 91 c0 00 lds r24, 0x00C0
|
|
3fa6: 85 ff sbrs r24, 5
|
|
3fa8: fc cf rjmp .-8 ; 0x3fa2 <putch+0x2>
|
|
UDR0 = ch;
|
|
3faa: 90 93 c6 00 sts 0x00C6, r25
|
|
[uartBit] "I" (UART_TX_BIT)
|
|
:
|
|
"r25"
|
|
);
|
|
#endif
|
|
}
|
|
3fae: 08 95 ret
|
|
|
|
00003fb0 <getch>:
|
|
return getch();
|
|
}
|
|
|
|
// Watchdog functions. These are only safe with interrupts turned off.
|
|
void watchdogReset() {
|
|
__asm__ __volatile__ (
|
|
3fb0: a8 95 wdr
|
|
[uartBit] "I" (UART_RX_BIT)
|
|
:
|
|
"r25"
|
|
);
|
|
#else
|
|
while(!(UCSR0A & _BV(RXC0)));
|
|
3fb2: 80 91 c0 00 lds r24, 0x00C0
|
|
3fb6: 87 ff sbrs r24, 7
|
|
3fb8: fc cf rjmp .-8 ; 0x3fb2 <getch+0x2>
|
|
ch = UDR0;
|
|
3fba: 80 91 c6 00 lds r24, 0x00C6
|
|
LED_PIN |= _BV(LED);
|
|
#endif
|
|
#endif
|
|
|
|
return ch;
|
|
}
|
|
3fbe: 08 95 ret
|
|
|
|
00003fc0 <getLen>:
|
|
} while (--count);
|
|
}
|
|
#endif
|
|
|
|
uint8_t getLen() {
|
|
getch();
|
|
3fc0: f7 df rcall .-18 ; 0x3fb0 <getch>
|
|
length = getch();
|
|
3fc2: f6 df rcall .-20 ; 0x3fb0 <getch>
|
|
3fc4: 80 93 02 02 sts 0x0202, r24
|
|
return getch();
|
|
}
|
|
3fc8: f3 cf rjmp .-26 ; 0x3fb0 <getch>
|
|
|
|
00003fca <watchdogConfig>:
|
|
"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 <appStart>:
|
|
|
|
void appStart() {
|
|
watchdogConfig(WATCHDOG_OFF);
|
|
3fd6: 80 e0 ldi r24, 0x00 ; 0
|
|
3fd8: f8 df rcall .-16 ; 0x3fca <watchdogConfig>
|
|
__asm__ __volatile__ (
|
|
3fda: ee 27 eor r30, r30
|
|
3fdc: ff 27 eor r31, r31
|
|
3fde: 09 94 ijmp
|
|
|
|
00003fe0 <verifySpace>:
|
|
do getch(); while (--count);
|
|
verifySpace();
|
|
}
|
|
|
|
void verifySpace() {
|
|
if (getch() != CRC_EOP) appStart();
|
|
3fe0: e7 df rcall .-50 ; 0x3fb0 <getch>
|
|
3fe2: 80 32 cpi r24, 0x20 ; 32
|
|
3fe4: 09 f0 breq .+2 ; 0x3fe8 <verifySpace+0x8>
|
|
3fe6: f7 df rcall .-18 ; 0x3fd6 <appStart>
|
|
putch(STK_INSYNC);
|
|
3fe8: 84 e1 ldi r24, 0x14 ; 20
|
|
}
|
|
3fea: da cf rjmp .-76 ; 0x3fa0 <putch>
|
|
|
|
00003fec <getNch>:
|
|
::[count] "M" (UART_B_VALUE)
|
|
);
|
|
}
|
|
#endif
|
|
|
|
void getNch(uint8_t count) {
|
|
3fec: 1f 93 push r17
|
|
3fee: 18 2f mov r17, r24
|
|
do getch(); while (--count);
|
|
3ff0: df df rcall .-66 ; 0x3fb0 <getch>
|
|
3ff2: 11 50 subi r17, 0x01 ; 1
|
|
3ff4: e9 f7 brne .-6 ; 0x3ff0 <getNch+0x4>
|
|
verifySpace();
|
|
3ff6: f4 df rcall .-24 ; 0x3fe0 <verifySpace>
|
|
}
|
|
3ff8: 1f 91 pop r17
|
|
3ffa: 08 95 ret
|