TODOPIC
Microcontroladores PIC => Pic32 => Mensaje iniciado por: Picuino en 13 de Mayo de 2012, 08:43:18
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Estoy compilando un programa en ensamblador que está al final de la memoria.
Cuando ensamblo consigo un binario *.HEX que ocupa toda la memoria y es muy grande.
¿Cómo puedo conseguir que el fichero binario sólo tenga las zonas programadas? (Sólo el vector reset y las últimas posiciones)
Saludos.
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existia una opcion para evitar eso, es mas, a mi por defecto me lo compilaba como tu querias y lo quise cambiar al contrario para probar, ahora el caso es que compilador usas? Yo recuerdo que en el mplab miraba por las opciones del linker o algo asi y por alli te ponia algo, pero no recuerdo bien.
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Mi a ver si puede ser esto:
Project -> Build options -> Project -> Pestaña MPLAB PIC32 Linker -> Opción "Remove unused sections"
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existia una opcion para evitar eso, es mas, a mi por defecto me lo compilaba como tu querias y lo quise cambiar al contrario para probar, ahora el caso es que compilador usas? Yo recuerdo que en el mplab miraba por las opciones del linker o algo asi y por alli te ponia algo, pero no recuerdo bien.
Utilizo el C18 C30 bajo MPLAB.
Mi a ver si puede ser esto:
Project -> Build options -> Project -> Pestaña MPLAB PIC32 Linker -> Opción "Remove unused sections"
Project -> Build options -> Project -> Pestaña MPLAB LINK30 -> Opción "Remove unused sections"
No me funciona. Sigue produciendo un *.hex de 180kb en vez de 12kb. Puede que esa opción sirva para no incluir código de funciones que no se utilicen.
En mi caso el problema es que lo llena todo de ceros:
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...
...
Hasta el final de la memoria en el que está el bootloader.
El programa es de un bootloader que comienza al final de la memoria:
;********************************************************************
; Tiny Bootloader dsPIC series Size=100words
; claudiu.chiculita@ugal.ro
; http://www.etc.ugal.ro/cchiculita/software/picbootloader.htm
;********************************************************************
.equ __30F4012, 1
.include "p30f4012.inc"
.include "fuses.inc"
.equ FOSC, 7370000
.equ baud, 19200
.equ IdTypePIC, 0x75
.equ max_flash, 0x8000 ;dsPIC max address
.equ first_address, 0x7E3C
.global __reset
.section .bss
buff: .space 4
buffer: .space 128+6
;REGISTRY:
;W0 imediat, param nvmcon
;W1 Receive
;W2 PUTCH need?
;W3 count rcv
;W4 memory buffer pointer
;W5 ^
;W6 for
;W7 temp
;W8
;W9 Erase/Write Flag
;W10 delay1
;W11 delay2
;W12 EA Write
;W13 crc
;W14 void(black hole)
;W15 stack
.macro PUTCH car
MOV.B \car, W2
MOV W2,U1TXREG
.endm
.text
;*************************************
; Relocated user Reset Vector
;*************************************
.org first_address
CLR W0
CLR W0
CLR W0
CLR W0
;*************************************
; Bootloader
;*************************************
__reset:
BootloaderEntry:
MOV #__SP_init, W15
MOV #__SPLIM_init, W0
MOV W0, SPLIM
NOP
init_uart:
;Initialize and Enable UART1 for Tx and Rx
MOV #0x8000, W0 ;bit15=UARTEN bit10=ALTIO
MOV W0, U1MODE
MOV #0x0400, W0 ;bit10=UTXEN
MOV W0, U1STA
; U1BRG = (((FOSC/baud) / 64) - 1) = 5 for 19200baud @ 7.37MHz
MOV #(((FOSC/baud)-32)/64), W0 ;?Initialize Baud rate (divide INSTRUCTION Cycle)
MOV W0, U1BRG ;to baud
;BSET U1MODE, #ALTIO ;Enable UART2
;wait for computer
MOV #buff, W4
RCALL Receive
SUB.B #0xC1, W1 ;Expect C1h
BRA NZ, way_to_exit
PUTCH #IdTypePIC ;send PIC type
MainLoop:
PUTCH #'K' ; "-Everything OK, ready and waiting."
mainl:
CLR W13 ;chksum
MOV #buff, W4
MOV #4, W6
dorcv4:
RCALL Receive
DEC W6, W6
BRA NZ, dorcv4
MOV buff, W12
MOV buff+2, W3
MOV W3, TBLPAG
;test W3.H to find out what to do
MOV #(96+1), W6
dorcvB:
RCALL Receive
DEC W6, W6
BRA NZ, dorcvB
CP0 W13 ;check crc
BRA Z, chksumok
ziieroare: ;CRC failed
PUTCH #'N'
BRA mainl
chksumok:
;-----------------------------------------------------
;ERASE
TBLWTL W0,[W12] ;dummy
MOV #0x4041,W0
CLRWDT
RCALL Key_Sequence
;Load_Write_Latch:
MOV #buffer,W4
DO #31, edtbl3
TBLWTL.B [W4++], [W12++]
TBLWTL.B [W4++], [W12--]
TBLWTH.B [W4++], [W12]
edtbl3:
INC2 W12, W12
MOV #0x4001,W0
RCALL Key_Sequence
BRA MainLoop
;-------------------------------------------------------------
Key_Sequence: ; Expects a NVMCON value in W0
MOV W0,NVMCON
MOV #0x55,W0 ; Write the key sequence
MOV W0,NVMKEY
MOV #0xAA,W0
MOV W0,NVMKEY
BSET NVMCON,#WR ; Start the write cycle
NOP
NOP
RETURN
;-------------------------------------------------------------
Receive:
MOV #(1000*(FOSC/1000)/(7*4096)), W10 ; ms waiting
rpt2:
MOV #1000, W11
rpt1:
BTSS U1STA, #URXDA
BRA norcv
MOV U1RXREG,W1 ;return read data in W
MOV.B W1, [W4++]
ADD.B W1, W13, W13 ;compute checksum
RETURN
norcv:
CLRWDT
DEC W11, W11
BRA NZ, rpt1
DEC W10, W10
BRA NZ, rpt2
timeout:
way_to_exit:
CLR U1MODE ; deactivate UART
BRA first_address
.end
Saludos.
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Pero si usas C18 como es que has cambiado las opciones en el link30? Para el C18 es el MPASMWIN, MCC18 y MPLINK
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Me he confundido :oops:, es la costumbre de programar para los PIC18.
En este caso el programa es un bootloader para un dsPIC30F4012 y estoy utilizando el compilador C30 ensamblador ASM30 con LINK30
(ya lo he corregido)
Saludos.
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He estado toqueteando y no consigo generar un HEX pequeñito. ¿Es posible que sea por culpa de que mi compilador es versión demo y no optimiza?, ¿el tuyo es full?
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Era full hasta que pasó el periodo de prueba.
Eso será, gracias Nocturno.
Saludos.