Autor: Fernando Rafael Filipuzzi
E-mail: fernando_6867@yahoo.com.ar
La idea es crear un ejemplo en c para compilarlo con sdcc, en este ejemplo se genera una secuencia para mover un motor paso a paso bipolar. Para esto elegí el microcontrolador HC908AP16.
La versión de sdcc que usé fue la 3.1.0 construida a partir de los fuentes. Más detalles [aquí].
hp:/usr/src/sdcc_examples/example# sdcc -v SDCC : mcs51/gbz80/z80/z180/r2k/ds390/pic16/pic14/TININative/ds400/hc08 3.1.0 #7066 (Nov 22 2011) (Linux)
Los archivos fuentes son:
He hecho un makefile sencillo.
# # Ejemplo sdcc MC68HC08 # PTD: secuencia para un motor paso a paso bipolar # PTC: led de actividad # # microcontrolador: hc908ap16 # archivo: Makefile # fecha: 15/12/2012 # url: http://hdcm.sytes.net # http://hdcm.com.ar # # Autor: Filipuzzi, Fernando Rafael # E-Mail: fernando6867@gmail.com # all: sdcc -V --verbose --fverbose-asm --std-c99 --model-small \ --main-return -mhc08 \ --code-loc 0x0860 --code-size 0x4000 \ --data-loc 0x0060 --iram-size 0x0400 --stack-loc 0x045f \ main.c clean: ls | grep -v "\.*.[c|h]$$" | grep -v "Makefile" | xargs rm -f
Declaro los registros de los dispositivos de este microcontrolador. No estan todos los registros, los iré definiendo a medida que los use.
/**
*
* microcontrolador: hc908ap16
* archivo: mc68hc908ap16.h
*
* Autor: Filipuzzi, Fernando Rafael
* E-Mail: fernando6867@gmail.com
*
**/
#ifndef __MC68HC908AP16_H__
#define __MC68HC908AP16_H__
/*PTC Port C Data Register*/
typedef union{
unsigned char byte;
struct{
unsigned char PTC7:1;
unsigned char PTC6:1;
unsigned char PTC5:1;
unsigned char PTC4:1;
unsigned char PTC3:1;
unsigned char PTC2:1;
unsigned char PTC1:1;
unsigned char PTC0:1;
} bits;
} ptc;
#define PTC_PTC7_MASK 0x80
#define PTC_PTC6_MASK 0x40
#define PTC_PTC5_MASK 0x20
#define PTC_PTC4_MASK 0x10
#define PTC_PTC3_MASK 0x08
#define PTC_PTC2_MASK 0x04
#define PTC_PTC1_MASK 0x02
#define PTC_PTC0_MASK 0x01
#define _PTC (*((volatile ptc*)(0x0002)))
#define PTC _PTC.byte
#define PTC_PTC7 _PTC.bits.PTC7
#define PTC_PTC6 _PTC.bits.PTC6
#define PTC_PTC5 _PTC.bits.PTC5
#define PTC_PTC4 _PTC.bits.PTC4
#define PTC_PTC3 _PTC.bits.PTC3
#define PTC_PTC2 _PTC.bits.PTC2
#define PTC_PTC1 _PTC.bits.PTC1
#define PTC_PTC0 _PTC.bits.PTC0
/*PTD Port D Data Register*/
typedef union{
unsigned char byte;
struct{
unsigned char PTD7:1;
unsigned char PTD6:1;
unsigned char PTD5:1;
unsigned char PTD4:1;
unsigned char PTD3:1;
unsigned char PTD2:1;
unsigned char PTD1:1;
unsigned char PTD0:1;
} bits;
} ptd;
#define PTD_PTD7_MASK 0x80
#define PTD_PTD6_MASK 0x40
#define PTD_PTD5_MASK 0x20
#define PTD_PTD4_MASK 0x10
#define PTD_PTD3_MASK 0x08
#define PTD_PTD2_MASK 0x04
#define PTD_PTD1_MASK 0x02
#define PTD_PTD0_MASK 0x01
#define _PTD (*((volatile ptd*)(0x0003)))
#define PTD _PTD.byte
#define PTD_PTD7 _PTD.bits.PTD7
#define PTD_PTD6 _PTD.bits.PTD6
#define PTD_PTD5 _PTD.bits.PTD5
#define PTD_PTD4 _PTD.bits.PTD4
#define PTD_PTD3 _PTD.bits.PTD3
#define PTD_PTD2 _PTD.bits.PTD2
#define PTD_PTD1 _PTD.bits.PTD1
#define PTD_PTD0 _PTD.bits.PTD0
/*DDRC Direction Register C*/
typedef union{
unsigned char byte;
struct{
unsigned char DDRC7:1;
unsigned char DDRC6:1;
unsigned char DDRC5:1;
unsigned char DDRC4:1;
unsigned char DDRC3:1;
unsigned char DDRC2:1;
unsigned char DDRC1:1;
unsigned char DDRC0:1;
} bits;
} ddrc;
#define DDRC_DDRC7_MASK 0x80
#define DDRC_DDRC6_MASK 0x40
#define DDRC_DDRC5_MASK 0x20
#define DDRC_DDRC4_MASK 0x10
#define DDRC_DDRC3_MASK 0x08
#define DDRC_DDRC2_MASK 0x04
#define DDRC_DDRC1_MASK 0x02
#define DDRC_DDRC0_MASK 0x01
#define _DDRC (*((volatile ddrc*)(0x0006)))
#define DDRC _DDRC.byte
#define DDRC_DDRC7 _DDRC.bits.DDRC7
#define DDRC_DDRC6 _DDRC.bits.DDRC6
#define DDRC_DDRC5 _DDRC.bits.DDRC5
#define DDRC_DDRC4 _DDRC.bits.DDRC4
#define DDRC_DDRC3 _DDRC.bits.DDRC3
#define DDRC_DDRC2 _DDRC.bits.DDRC2
#define DDRC_DDRC1 _DDRC.bits.DDRC1
#define DDRC_DDRC0 _DDRC.bits.DDRC0
/*DDRD Direction Register D*/
typedef union{
unsigned char byte;
struct{
unsigned char DDRD7:1;
unsigned char DDRD6:1;
unsigned char DDRD5:1;
unsigned char DDRD4:1;
unsigned char DDRD3:1;
unsigned char DDRD2:1;
unsigned char DDRD1:1;
unsigned char DDRD0:1;
} bits;
} ddrd;
#define DDRD_DDRD7_MASK 0x80
#define DDRD_DDRD6_MASK 0x40
#define DDRD_DDRD5_MASK 0x20
#define DDRD_DDRD4_MASK 0x10
#define DDRD_DDRD3_MASK 0x08
#define DDRD_DDRD2_MASK 0x04
#define DDRD_DDRD1_MASK 0x02
#define DDRD_DDRD0_MASK 0x01
#define _DDRD (*((volatile ddrd*)(0x0007)))
#define DDRD _DDRD.byte
#define DDRD_DDRD7 _DDRD.bits.DDRD7
#define DDRD_DDRD6 _DDRD.bits.DDRD6
#define DDRD_DDRD5 _DDRD.bits.DDRD5
#define DDRD_DDRD4 _DDRD.bits.DDRD4
#define DDRD_DDRD3 _DDRD.bits.DDRD3
#define DDRD_DDRD2 _DDRD.bits.DDRD2
#define DDRD_DDRD1 _DDRD.bits.DDRD1
#define DDRD_DDRD0 _DDRD.bit.DDRD0
/*SCI Control Register 1*/
typedef union{
unsigned char byte;
struct{
unsigned char LOOPS:1;
unsigned char ENSCI:1;
unsigned char TXINV:1;
unsigned char M:1;
unsigned char WAKE:1;
unsigned char ILTY:1;
unsigned char PEN:1;
unsigned char PTY:1;
} bits;
} scc1;
#define SCC1_LOOPS_MASK 0x80
#define SCC1_ENSCI_MASK 0x40
#define SCC1_TXINV_MASK 0x20
#define SCC1_M_MASK 0x10
#define SCC1_WAKE_MASK 0x08
#define SCC1_ILTY_MASK 0x04
#define SCC1_PEN_MASK 0x02
#define SCC1_PTY_MASK 0x01
#define _SCC1 (*((volatile scc1 *)(0x0013)))
#define SCC1 _SCC1.byte
#define SCC1_LOOPS _SCC1.bits.LOOPS
#define SCC1_ENSCI _SCC1.bits.ENSCI
#define SCC1_TXINV _SCC1.bits.TXINV
#define SCC1_M _SCC1.bits.M
#define SCC1_WAKE _SCC1.bits.WAKE
#define SCC1_ILTY _SCC1.bits.ILTY
#define SCC1_PEN _SCC1.bits.PEN
#define SCC1_PTY _SCC1.bits.PTY
/*SCI Control Register 2*/
typedef union{
unsigned char byte;
struct{
unsigned char SCTIE:1;
unsigned char TCIE:1;
unsigned char SCRIE:1;
unsigned char ILIE:1;
unsigned char TE:1;
unsigned char RE:1;
unsigned char RWU:1;
unsigned char SBK:1;
} bits;
} scc2;
#define SCC2_SCTIE_MASK 0x80
#define SCC2_TCIE_MASK 0x40
#define SCC2_SCRIE_MASK 0x20
#define SCC2_ILIE_MASK 0x10
#define SCC2_TE_MASK 0x08
#define SCC2_RE_MASK 0x04
#define SCC2_RWU_MASK 0x02
#define SCC2_SBK_MASK 0x01
#define _SCC2 (*((volatile scc2 *)(0x14)))
#define SCC2 _SCC2.byte
#define SCC2_SCTIE _SCC2.bits.SCTIE
#define SCC2_TCIE _SCC2.bits.TCIE
#define SCC2_SCRIE _SSC2.bits.SCRIE
#define SCC2_ILIE _SCC2.bits.ILIE
#define SCC2_TE _SCC2.bits.TE
#define SCC2_RE _SCC2.bits.RE
#define SCC2_RWU _SCC2.bit.RWU
#define SCC2_SBK _SCC2.bit.SBK
/*SCI Control Register 3*/
typedef union{
unsigned char byte;
struct{
unsigned char Rs:1;
unsigned char Ts:1;
unsigned char DMARE:1;
unsigned char DMATE:1;
unsigned char ORIE:1;
unsigned char NEIE:1;
unsigned char FEIE:1;
unsigned char PEIE:1;
} bits;
} scc3;
#define SCC3_Rs_MASK 0x80
#define SCC3_Ts_MASK 0x40
#define SCC3_DMARE_MASK 0x20
#define SCC3_DMATE_MASK 0x10
#define SCC3_ORIE_MASK 0x08
#define SCC3_NEIE_MASK 0x04
#define SCC3_FEIE_MASK 0x02
#define SCC3_PEIE_MASK 0x01
#define _SCC3 (*((volatile scc3 *)(0x15)))
#define SCC3 _SCC3.byte
#define SCC3_Rs _SCC3.bits.Rs
#define SCC3_Ts _SCC3.bits.Ts
#define SCC3_DMARE _SCC3.bits.DMARE
#define SCC3_DMATE _SCC3.bits.DMATE
#define SCC3_ORIE _SCC3.bits.ORIE
#define SCC3_NEIE _SCC3.bits.NEIE
#define SCC3_FEIE _SCC3.bits.FEIE
#define SCC3_PEIE _SCC3.bits.PEIE
/*SCI Status Register 1*/
typedef union{
unsigned char byte;
struct{
unsigned char SCTE:1;
unsigned char TC:1;
unsigned char SCRF:1;
unsigned char IDLE:1;
unsigned char OR:1;
unsigned char NF:1;
unsigned char FE:1;
unsigned char PE:1;
} bits;
} scs1;
#define SCS1_SCTE_MASK 0x80
#define SCS1_TC_MASK 0x40
#define SCS1_SCRF_MASK 0x20
#define SCS1_IDLE_MASK 0x10
#define SCS1_OR_MASK 0x08
#define SCS1_NF_MASK 0x04
#define SCS1_FE_MASK 0x02
#define SCS1_PE_MASK 0x01
#define _SCS1 (*((volatile scs1 *)(0x16)))
#define SCS1 _SCS1.byte
#define SCS1_SCTE _SCS1.bits.SCTE
#define SCS1_TC _SCS1.bits.TC
#define SCS1_SCRF _SCS1.bits.SCRF
#define SCS1_IDLE _SCS1.bits.IDLE
#define SCS1_OR _SCS1.bits.OR
#define SCS1_NF _SCS1.bits.NF
#define SCS1_FE _SCS1.bits.FE
#define SCS1_PE _SCS1.bit.PE
/*SCI Status Register 2*/
typedef union{
unsigned char byte;
struct{
unsigned char :6;
unsigned char BKF:1;
unsigned char RPF:1;
} bits;
} scs2;
#define SCS2_BKF_MASK 0x02
#define SCS2_RPF_MASK 0x01
#define _SCS2 (*((volatile scs2 *)(0x17)))
#define SCS2 _SCS2.byte
#define SCS2_BKF _SCS2.bits.BKF
#define SCS2_RPF _SCS2.bits.RPF
/*SCI Data Register */
typedef union{
unsigned char byte;
struct{
unsigned char R7:1;
unsigned char R6:1;
unsigned char R5:1;
unsigned char R4:1;
unsigned char R3:1;
unsigned char R2:1;
unsigned char R1:1;
unsigned char R0:1;
} bits;
} scdr;
#define _SCDR (*((volatile scdr *)(0x18)))
#define SCDR _SCDR.byte
/*SCI Baud Rate Register */
typedef union{
unsigned char byte;
struct{
unsigned char :2;
unsigned char SCP1:1;
unsigned char SCP0:1;
unsigned char R :1;
unsigned char SCR2:1;
unsigned char SCR1:1;
unsigned char SCR0:1;
} bits;
} scbr;
#define SCBR_SP1_MASK 0x20
#define SCBR_SCP0_MASK 0x10
#define SCBR_R_MASK 0x08
#define SCBR_SCR2_MASK 0x04
#define SCBR_SCR1_MASK 0x02
#define SCBR_SCR0_MASK 0x01
#define _SCBR (*((volatile scbr *)(0x19)))
#define SCBR _SCBR.byte
#define SCBR_SCP1 _SCBR.bits.SCP1
#define SCBR_SCP0 _SCBR.bits.SCP0
#define SCBR_R _SCBR.bits.R
#define SCBR_SCR2 _SCBR.bits.SCR2
#define SCBR_SCR1 _SCBR.bits.SCR1
#define SCBR_SCR0 _SCBR.bits.SCR0
#endif
hp:/usr/src/sdcc_examples/example/example_sdccmhc08_ap16# make clean ls | grep -v "\.*.[c|h]$" | grep -v "Makefile" | xargs rm -f
hp:/usr/src/sdcc_examples/example/example_sdccmhc08_ap16# make sdcc -V --verbose --fverbose-asm --std-c99 --model-small \ --main-return -mhc08 \ --code-loc 0x0860 --code-size 0x4000 \ --data-loc 0x0060 --iram-size 0x0400 --stack-loc 0x045f \ main.c sdcc: Calling preprocessor... + "/usr/local/bin/sdcpp" -nostdinc -Wall -std=c99 -obj-ext=.rel -DSDCC_MODEL_SMALL -DSDCC=310 -DSDCC_REVISION=7066 -DSDCC_hc08 -D__hc08 -isystem "/usr/local/bin/../share/sdcc/include/hc08" -isystem "/usr/local/share/sdcc/include/hc08" -isystem "/usr/local/bin/../share/sdcc/include" -isystem "/usr/local/share/sdcc/include" "main.c" sdcc: Generating code... sdcc: Calling assembler... + "/usr/local/bin/sdas6808" -plosgffwz "main.rel" "main.asm" sdcc: Calling linker... sdcc: Calling linker... + "/usr/local/bin/sdld6808" -nf "main.lk" hp:/usr/src/sdcc_examples/example/example_sdccmhc08_ap16#
host:/usr/src/sdcc_examples/example/example1# ls | grep -v "\.*.[c|h]$" | grep -v "Makefile" main.asm main.cdb main.lk main.lst main.map main.rel main.rst main.s19 main.sym
Ahí se encuentra el s19 para grabar en la memoria del microcontrolador.