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Re: [avr-gcc-list] AVR-GCC help
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From: |
ks_347 |
|
Subject: |
Re: [avr-gcc-list] AVR-GCC help |
|
Date: |
Thu, 29 Jan 2004 16:00:31 -0800 (PST) |
I am attaching the disassembler file herewith. This might help. I see there is
one "error" mentioned in that.
Thanks
ks_347 <address@hidden> wrote:
Hello,
I have declared an interrupt routine in my program using
INTERRUPT(SIG_UART0_DATA). When I was looking at the disassembler code using
AVRSTUDIO, in the interrupt vector table on the location 0x02A, there was no
proper address of my interrupt routine.My understanding is that the avr-gcc
compiler should take care of the address of this routine internally.
Due to this what is happening is everytime it receives an interrupt, it will go
to address 0x02A and there it only finds out the default address, which will
transfer the program control to the reset address, so my program is in infinite
loop. Any suggestions or idea on whats going on here?
I hope I am describing this well, so that you people can understand.
I have included all the files and my program is compiled fine.
Thanks
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+00000000: 940C0038 JMP 0x00000038 Jump
+00000002: 940C0053 JMP 0x00000053 Jump
+00000004: 940C0053 JMP 0x00000053 Jump
+00000006: 940C0053 JMP 0x00000053 Jump
+00000008: 940C0053 JMP 0x00000053 Jump
+0000000A: 940C0053 JMP 0x00000053 Jump
+0000000C: 940C0053 JMP 0x00000053 Jump
+0000000E: 940C0053 JMP 0x00000053 Jump
+00000010: 940C0053 JMP 0x00000053 Jump
+00000012: 940C0053 JMP 0x00000053 Jump
+00000014: 940C0000 JMP 0x00000000 Jump
+00000016: 940C0053 JMP 0x00000053 Jump
+00000018: 940C0053 JMP 0x00000053 Jump
+0000001A: 940C0053 JMP 0x00000053 Jump
+0000001C: 940C0053 JMP 0x00000053 Jump
+0000001E: 940C0053 JMP 0x00000053 Jump
+00000020: 940C0053 JMP 0x00000053 Jump
+00000022: 940C0053 JMP 0x00000053 Jump
+00000024: 940C0053 JMP 0x00000053 Jump
+00000026: 940C0053 JMP 0x00000053 Jump
+00000028: 940C0053 JMP 0x00000053 Jump
+0000002A: 940C0053 JMP 0x00000053 Jump
+0000002C: 940C0053 JMP 0x00000053 Jump
+0000002E: 940C0053 JMP 0x00000053 Jump
+00000030: 940C0053 JMP 0x00000053 Jump
+00000032: 940C0053 JMP 0x00000053 Jump
+00000034: 940C0053 JMP 0x00000053 Jump
+00000036: 940C0053 JMP 0x00000053 Jump
+00000038: 2411 CLR R1 Exclusive OR
+00000039: BE1F OUT 0x3F,R1 Out to I/O location
+0000003A: EFCF SER R28 Load immediate
+0000003B: E0D4 LDI R29,0x04 Load immediate
+0000003C: BFDE OUT 0x3E,R29 Out to I/O location
+0000003D: BFCD OUT 0x3D,R28 Out to I/O location
+0000003E: E011 LDI R17,0x01 Load immediate
+0000003F: E0A0 LDI R26,0x00 Load immediate
+00000040: E0B1 LDI R27,0x01 Load immediate
+00000041: E8E4 LDI R30,0x84 Load immediate
+00000042: E0F1 LDI R31,0x01 Load immediate
+00000043: C002 RJMP +0x0002 Relative jump
+00000044: 9005 LPM R0,Z+ Load program memory and
postincrement
+00000045: 920D ST X+,R0 Store indirect and
postincrement
+00000046: 30AC CPI R26,0x0C Compare with immediate
+00000047: 07B1 CPC R27,R17 Compare with carry
+00000048: F7D9 BRNE -0x05 Branch if status flag cleared
+00000049: E011 LDI R17,0x01 Load immediate
+0000004A: E0AC LDI R26,0x0C Load immediate
+0000004B: E0B1 LDI R27,0x01 Load immediate
+0000004C: C001 RJMP +0x0001 Relative jump
+0000004D: 921D ST X+,R1 Store indirect and
postincrement
+0000004E: 38AF CPI R26,0x8F Compare with immediate
+0000004F: 07B1 CPC R27,R17 Compare with carry
+00000050: F7E1 BRNE -0x04 Branch if status flag cleared
+00000051: 940C0055 JMP 0x00000055 Jump
+00000053: 940C0000 JMP 0x00000000 Jump
@00000055: main
---- main.c
---------------------------------------------------------------------------------------
28: void main( void )
29: {
+00000055: EFCF SER R28 Load immediate
+00000056: E0D4 LDI R29,0x04 Load immediate
+00000057: BFDE OUT 0x3E,R29 Out to I/O location
+00000058: BFCD OUT 0x3D,R28 Out to I/O location
31:
+00000059: 9478 SEI Flag set
32: SerialInit(); /* Set the baudrate to 9600 bps using a 3.69MHz crystal
*/
+0000005A: 940E0062 CALL 0x00000062 Call subroutine
36:
+0000005C: E080 LDI R24,0x00 Load immediate
+0000005D: E091 LDI R25,0x01 Load immediate
+0000005E: 940E00B2 CALL 0x000000B2 Call subroutine
40: Error: Invalid line
+00000060: 940C00C1 JMP 0x000000C1 Jump
@00000062: SerialInit
---- serial.c
-------------------------------------------------------------------------------------
48: m_USART_TxTail = 0;
+00000062: 9210018D STS 0x018D,R1 Store direct to data space
49: m_USART_TxHead = 0;
+00000064: 9210018C STS 0x018C,R1 Store direct to data space
50: m_USART_Txcount= 0;
+00000066: 9210018E STS 0x018E,R1 Store direct to data space
54: UBRR0H = (U8)(baud>>8);
+00000068: BC10 OUT 0x20,R1 Out to I/O location
55: UBRR0L = (U8) baud;
+00000069: E187 LDI R24,0x17 Load immediate
+0000006A: E090 LDI R25,0x00 Load immediate
+0000006B: E0A0 LDI R26,0x00 Load immediate
+0000006C: E0B0 LDI R27,0x00 Load immediate
+0000006D: B989 OUT 0x09,R24 Out to I/O location
59: UCSR0B = ( ( 1 << UDRIE0 ) | ( 1 << RXEN0 ) | ( 1 << TXEN0 ) );
+0000006E: E388 LDI R24,0x38 Load immediate
+0000006F: B98A OUT 0x0A,R24 Out to I/O location
60: UCSR0C = (1<<URSEL0)|(1<<UCSZ00)|(1<<UCSZ01);
+00000070: E886 LDI R24,0x86 Load immediate
+00000071: BD80 OUT 0x20,R24 Out to I/O location
64: }
+00000072: 9508 RET Subroutine return
@00000073: SerialPutc
93: void SerialPutc( U8 data )
94: {
+00000073: 2F28 MOV R18,R24 Copy register
99: if( m_USART_Txcount < USART_TX_BUFFER_SIZE)
+00000074: 9190018E LDS R25,0x018E Load direct from data space
+00000076: FD97 SBRC R25,7 Skip if bit in register
cleared
+00000077: C00F RJMP +0x000F Relative jump
101: m_USART_TxBuf[m_USART_TxTail++] = data; /* Store data in
buffer */
+00000078: 9180018D LDS R24,0x018D Load direct from data space
+0000007A: 2FE8 MOV R30,R24 Copy register
+0000007B: 27FF CLR R31 Exclusive OR
+0000007C: 5FE4 SUBI R30,0xF4 Subtract immediate
+0000007D: 4FFE SBCI R31,0xFE Subtract immediate with carry
+0000007E: 8320 STD Z+0,R18 Store indirect with
displacement
+0000007F: 5F8F SUBI R24,0xFF Subtract immediate
+00000080: 9380018D STS 0x018D,R24 Store direct to data space
102: UCSR0B &= ~(1<<UDRIE0); /* Disable UDRE interrupt */
+00000082: 9855 CBI 0x0A,5 Clear bit in I/O register
103: m_USART_Txcount++;
+00000083: 5F9F SUBI R25,0xFF Subtract immediate
+00000084: 9390018E STS 0x018E,R25 Store direct to data space
@00000086: m_USART_TxBuf
104: UCSR0B |= (1<<UDRIE0); /* Enable UDRE interrupt */
+00000086: 9A55 SBI 0x0A,5 Set bit in I/O register
107: } /* end SerialPutc() */
+00000087: 9508 RET Subroutine return
---- No Source
------------------------------------------------------------------------------------
+00000088: 9508 RET Subroutine return
@00000089: SIG_UART0_DATA
---- serial.c
-------------------------------------------------------------------------------------
109: INTERRUPT(__vector_default)
110: {
+00000089: 921F PUSH R1 Push register on stack
+0000008A: 920F PUSH R0 Push register on stack
+0000008B: B60F IN R0,0x3F In from I/O location
+0000008C: 920F PUSH R0 Push register on stack
+0000008D: 2411 CLR R1 Exclusive OR
+0000008E: 932F PUSH R18 Push register on stack
+0000008F: 938F PUSH R24 Push register on stack
+00000090: 939F PUSH R25 Push register on stack
+00000091: 93EF PUSH R30 Push register on stack
+00000092: 93FF PUSH R31 Push register on stack
113: }
+00000093: 9120018E LDS R18,0x018E Load direct from data space
+00000095: 2322 TST R18 Logical AND
+00000096: F081 BREQ +0x10 Branch if status flag set
115:
+00000097: 9180018C LDS R24,0x018C Load direct from data space
+00000099: 2FE8 MOV R30,R24 Copy register
+0000009A: 27FF CLR R31 Exclusive OR
+0000009B: 5FE4 SUBI R30,0xF4 Subtract immediate
+0000009C: 4FFE SBCI R31,0xFE Subtract immediate with carry
+0000009D: 8190 LDD R25,Z+0 Load indirect with
displacement
+0000009E: B99C OUT 0x0C,R25 Out to I/O location
+0000009F: 5F8F SUBI R24,0xFF Subtract immediate
+000000A0: 9380018C STS 0x018C,R24 Store direct to data space
116: INTERRUPT(SIG_UART1_DATA)
+000000A2: 5021 SUBI R18,0x01 Subtract immediate
+000000A3: 9320018E STS 0x018E,R18 Store direct to data space
117: {
+000000A5: 9A55 SBI 0x0A,5 Set bit in I/O register
+000000A6: C001 RJMP +0x0001 Relative jump
121: {
+000000A7: 9855 CBI 0x0A,5 Clear bit in I/O register
124: UCSR0B |= (1<<UDRIE0); /* Enable UDRE interrupt */
+000000A8: 91FF POP R31 Pop register from stack
---- No Source
------------------------------------------------------------------------------------
+000000A9: 91EF POP R30 Pop register from stack
+000000AA: 919F POP R25 Pop register from stack
+000000AB: 918F POP R24 Pop register from stack
+000000AC: 912F POP R18 Pop register from stack
+000000AD: 900F POP R0 Pop register from stack
+000000AE: BE0F OUT 0x3F,R0 Out to I/O location
+000000AF: 900F POP R0 Pop register from stack
+000000B0: 901F POP R1 Pop register from stack
+000000B1: 9518 RETI Interrupt return
@000000B2: SerialPuts
---- serial.c
-------------------------------------------------------------------------------------
154: *
155: * Author: KSG
+000000B2: 93CF PUSH R28 Push register on stack
+000000B3: 93DF PUSH R29 Push register on stack
+000000B4: 01EC MOVW R28,R24 Copy register pair
157: * Revision Log: 01-27-2004 KSG
+000000B5: 8188 LDD R24,Y+0 Load indirect with
displacement
+000000B6: 2388 TST R24 Logical AND
+000000B7: F031 BREQ +0x06 Branch if status flag set
159:
/*#RE#***********************************************************************/
+000000B8: 9189 LD R24,Y+ Load indirect and
postincrement
+000000B9: 940E0073 CALL 0x00000073 Call subroutine
+000000BB: 8188 LDD R24,Y+0 Load indirect with
displacement
+000000BC: 2388 TST R24 Logical AND
+000000BD: F7D1 BRNE -0x06 Branch if status flag cleared
162: {
+000000BE: 91DF POP R29 Pop register from stack
---- No Source
------------------------------------------------------------------------------------
+000000BF: 91CF POP R28 Pop register from stack
+000000C0: 9508 RET Subroutine return
+000000C1: CFFF RJMP -0x0001 Relative jump
+000000C2: 6548 ORI R20,0x58 Logical OR with immediate
+000000C3: 6C6C ORI R22,0xCC Logical OR with immediate
+000000C4: 206F AND R6,R15 Logical AND
+000000C5: 6F57 ORI R21,0xF7 Logical OR with immediate
+000000C6: 6C72 ORI R23,0xC2 Logical OR with immediate
+000000C7: 0064 ??? Data or unknown opcode
+000000C8: FFFF ??? Data or unknown opcode
+000000C9: FFFF ??? Data or unknown opcode
+000000CA: FFFF ??? Data or unknown opcode
+000000CB: FFFF ??? Data or unknown opcode
+000000CC: FFFF ??? Data or unknown opcode
+000000CD: FFFF ??? Data or unknown opcode
+000000CE: FFFF ??? Data or unknown opcode
+000000CF: FFFF ??? Data or unknown opcode
+000000D0: FFFF ??? Data or unknown opcode
+000000D1: FFFF ??? Data or unknown opcode
+000000D2: FFFF ??? Data or unknown opcode
+000000D3: FFFF ??? Data or unknown opcode
+000000D4: FFFF ??? Data or unknown opcode