Difference between revisions of "PIC"

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(Created page with "'''PIC''' microcontrollers are a RISC line from Microchip. They are used in ECE 2504 Introduction to Computer Engineering and [[ECE 45...")
 
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'''PIC''' microcontrollers are a [[w:Reduced_instruction_set_computing|RISC]] line from Microchip. They are used in [[ECE 2504 Introduction to Computer Engineering]] and [[ECE 4534 Embedded System Design]]].  
+
'''PIC''' microcontrollers are a [[w:Reduced_instruction_set_computing|RISC]] line from Microchip. They are used in [[ECE 2504 Introduction to Computer Engineering]] and [[ECE 4534 Embedded System Design]].
  
 
==Compiling Code==
 
==Compiling Code==
 
MPLAB is IDE recommended by the ECE department. It can be run inside a Virtual Machine, programming using USB passthrough. It can also be installed under wine and the compiler used from the commandline. sdcc is reported to work, and pikdev has a C compiler for the PIC as well.
 
MPLAB is IDE recommended by the ECE department. It can be run inside a Virtual Machine, programming using USB passthrough. It can also be installed under wine and the compiler used from the commandline. sdcc is reported to work, and pikdev has a C compiler for the PIC as well.
  
−
==Makefile Using Wine==
+
===Using Wine to Run the Toolchain===
 +
The MCC18 toolchain can be run using wine. This page should be updated to give more detailed instructions.
 +
 
 +
===Makefile Using Wine===
 +
The file below is a work in progress.
 
<pre>
 
<pre>
−
PRG = dspic_oscope
+
# Hacked up makefile for Linux
−
OBJS = main.o uart-multiplex.o adc.o spi.o spi_drivers.o readline.o
+
 
 +
export WINEPREFIX = /home/user/class/embedded/pic/toolchain
 +
MCCPATH = $(WINEPREFIX)/drive_c/MCC18/bin
 +
CC = wine $(MCCPATH)/mcc18.exe
 +
CFLAGS =  --extended -Opa-
 +
# -D__DEBUG -Ou- -Ot- -Ob- -Op- -Or- -Od- -Opa-
 +
LD = wine $(MCCPATH)/mplink.exe
 +
AR = wine $(MCCPATH)/mplib.exe
 +
PK2PATH = /home/user/class/embedded/pic/pk2cmd/pk2cmdv1.20LinuxMacSource
 +
PK2CMD = $(PK2PATH)/pk2cmd
 +
RM = rm
 +
 
 +
Proj1.cof : main.o messages.o interrupts.o user_interrupts.o my_uart.o uart_thread.o timer1_thread.o timer0_thread.o my_i2c.o
 +
$(LD) /p18F2680 /l"C:\MCC18\lib" "main.o" "messages.o" "interrupts.o" "user_interrupts.o" "my_uart.o" "uart_thread.o" "timer1_thread.o" "timer0_thread.o" "my_i2c.o" /u_CRUNTIME /u_EXTENDEDMODE /z__MPLAB_BUILD=1 /m"Proj1.map" /w /o"Proj1.cof"
  
−
CC = wine pic30-gcc
+
main.o : main.c ../toolchain/drive_c/MCC18/h/stdio.h ../toolchain/drive_c/MCC18/h/usart.h ../toolchain/drive_c/MCC18/h/i2c.h ../toolchain/drive_c/MCC18/h/timers.h messages.h my_uart.h my_i2c.h uart_thread.h timer1_thread.h timer0_thread.h main.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h ../toolchain/drive_c/MCC18/h/stdarg.h ../toolchain/drive_c/MCC18/h/stddef.h ../toolchain/drive_c/MCC18/h/pconfig.h interrupts.h
−
BIN2HEX = wine pic30-bin2hex
+
$(CC) -p=18F2680 "main.c" -fo="main.o" $(CFLAGS)
  
−
MCU=33FJ128GP802
+
messages.o : messages.c messages.h messages.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h interrupts.h
−
C30LIB="C:\Program Files\Microchip\MPLAB C30\lib"
+
$(CC) -p=18F2680 "messages.c" -fo="messages.o" $(CFLAGS)
−
CFLAGS = -mcpu=$(MCU) -x c -Wall -Os -std=gnu99
 
−
LDFLAGS = -mcpu=$(MCU) -Wl,-L$(C30LIB),-Tp$(MCU).gld,--defsym=__MPLAB_BUILD=1,-Map="$(PRG).map"
 
−
#,--report-mem
 
−
#LIBS = -ldsp-coff
 
−
LIBS =
 
  
−
all: $(PRG).hex
+
interrupts.o : interrupts.c messages.h my_uart.h interrupts.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h interrupts.h user_interrupts.h
 +
$(CC) -p=18F2680 "interrupts.c" -fo="interrupts.o" $(CFLAGS)
  
−
flash: all
+
user_interrupts.o : user_interrupts.c ../toolchain/drive_c/MCC18/h/timers.h messages.h my_uart.h user_interrupts.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h ../toolchain/drive_c/MCC18/h/pconfig.h user_interrupts.h
−
    pk2cmd -F$(PRG).hex -M -PF6 -W -R
+
$(CC) -p=18F2680 "user_interrupts.c" -fo="user_interrupts.o" $(CFLAGS)
  
−
clean:
+
my_uart.o : my_uart.c ../toolchain/drive_c/MCC18/h/usart.h messages.h my_uart.h my_uart.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h ../toolchain/drive_c/MCC18/h/pconfig.h
−
    rm -f $(OBJS) $(PRG).cof $(PRG).hex $(PRG).map
+
$(CC) -p=18F2680 "my_uart.c" -fo="my_uart.o" $(CFLAGS)
  
−
%.hex: %.cof
+
uart_thread.o : uart_thread.c ../toolchain/drive_c/MCC18/h/stdio.h uart_thread.h uart_thread.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h ../toolchain/drive_c/MCC18/h/stdarg.h ../toolchain/drive_c/MCC18/h/stddef.h
−
    $(BIN2HEX) $<
+
$(CC) -p=18F2680 "uart_thread.c" -fo="uart_thread.o" $(CFLAGS)
  
−
$(PRG).cof: $(OBJS)
+
timer1_thread.o : timer1_thread.c ../toolchain/drive_c/MCC18/h/stdio.h messages.h timer1_thread.h timer1_thread.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h ../toolchain/drive_c/MCC18/h/stdarg.h ../toolchain/drive_c/MCC18/h/stddef.h
−
    $(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
+
$(CC) -p=18F2680 "timer1_thread.c" -fo="timer1_thread.o" $(CFLAGS)
  
−
.c.o:
+
timer0_thread.o : timer0_thread.c ../toolchain/drive_c/MCC18/h/stdio.h timer0_thread.h timer0_thread.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h ../toolchain/drive_c/MCC18/h/stdarg.h ../toolchain/drive_c/MCC18/h/stddef.h
−
    $(CC) $(CFLAGS) -c $<
+
$(CC) -p=18F2680 "timer0_thread.c" -fo="timer0_thread.o" $(CFLAGS)
 +
 
 +
my_i2c.o : my_i2c.c ../toolchain/drive_c/MCC18/h/i2c.h messages.h my_i2c.h my_i2c.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h ../toolchain/drive_c/MCC18/h/pconfig.h
 +
$(CC) -p=18F2680 "my_i2c.c" -fo="my_i2c.o" $(CFLAGS)
 +
 
 +
clean :
 +
$(RM) "main.o" "messages.o" "interrupts.o" "user_interrupts.o" "my_uart.o" "uart_thread.o" "timer1_thread.o" "timer0_thread.o" "my_i2c.o" "Proj1.cof" "Proj1.hex" "Proj1.map"
 +
 
 +
prog : Proj1.hex
 +
$(PK2CMD) -A3.3 -B$(PK2PATH) -P -M -FProj1.hex -Y -T
 
</pre>
 
</pre>
  
−
==See Also==
+
==Programming==
−
* [[PICKit 2]]
+
See the [[PICKit 2]] article for programming your hex file natively using <code>pk2cmd</code>.
 +
 
 +
==Debugging==
 +
Reading printf-style debugging messages over UART with the PICKit 2 is possible from a Windows virtual machine with USB passthrough.
  
 
==External Links==
 
==External Links==
 
* [[http://hackaday.com/2010/11/03/how-to-program-pics-using-linux/ How-to Program PICs using Linux - Hackaday]] (see article and comments)
 
* [[http://hackaday.com/2010/11/03/how-to-program-pics-using-linux/ How-to Program PICs using Linux - Hackaday]] (see article and comments)

Revision as of 21:21, 9 February 2011

PIC microcontrollers are a RISC line from Microchip. They are used in ECE 2504 Introduction to Computer Engineering and ECE 4534 Embedded System Design.

Compiling Code

MPLAB is IDE recommended by the ECE department. It can be run inside a Virtual Machine, programming using USB passthrough. It can also be installed under wine and the compiler used from the commandline. sdcc is reported to work, and pikdev has a C compiler for the PIC as well.

Using Wine to Run the Toolchain

The MCC18 toolchain can be run using wine. This page should be updated to give more detailed instructions.

Makefile Using Wine

The file below is a work in progress. 

# Hacked up makefile for Linux

export WINEPREFIX = /home/user/class/embedded/pic/toolchain
MCCPATH = $(WINEPREFIX)/drive_c/MCC18/bin
CC = wine $(MCCPATH)/mcc18.exe
CFLAGS =  --extended -Opa-
# -D__DEBUG -Ou- -Ot- -Ob- -Op- -Or- -Od- -Opa-
LD = wine $(MCCPATH)/mplink.exe
AR = wine $(MCCPATH)/mplib.exe
PK2PATH = /home/user/class/embedded/pic/pk2cmd/pk2cmdv1.20LinuxMacSource
PK2CMD = $(PK2PATH)/pk2cmd
RM = rm

Proj1.cof : main.o messages.o interrupts.o user_interrupts.o my_uart.o uart_thread.o timer1_thread.o timer0_thread.o my_i2c.o
	$(LD) /p18F2680 /l"C:\MCC18\lib" "main.o" "messages.o" "interrupts.o" "user_interrupts.o" "my_uart.o" "uart_thread.o" "timer1_thread.o" "timer0_thread.o" "my_i2c.o" /u_CRUNTIME /u_EXTENDEDMODE /z__MPLAB_BUILD=1 /m"Proj1.map" /w /o"Proj1.cof"

main.o : main.c ../toolchain/drive_c/MCC18/h/stdio.h ../toolchain/drive_c/MCC18/h/usart.h ../toolchain/drive_c/MCC18/h/i2c.h ../toolchain/drive_c/MCC18/h/timers.h messages.h my_uart.h my_i2c.h uart_thread.h timer1_thread.h timer0_thread.h main.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h ../toolchain/drive_c/MCC18/h/stdarg.h ../toolchain/drive_c/MCC18/h/stddef.h ../toolchain/drive_c/MCC18/h/pconfig.h interrupts.h
	$(CC) -p=18F2680 "main.c" -fo="main.o" $(CFLAGS)

messages.o : messages.c messages.h messages.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h interrupts.h
	$(CC) -p=18F2680 "messages.c" -fo="messages.o" $(CFLAGS)

interrupts.o : interrupts.c messages.h my_uart.h interrupts.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h interrupts.h user_interrupts.h
	$(CC) -p=18F2680 "interrupts.c" -fo="interrupts.o" $(CFLAGS)

user_interrupts.o : user_interrupts.c ../toolchain/drive_c/MCC18/h/timers.h messages.h my_uart.h user_interrupts.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h ../toolchain/drive_c/MCC18/h/pconfig.h user_interrupts.h
	$(CC) -p=18F2680 "user_interrupts.c" -fo="user_interrupts.o" $(CFLAGS)

my_uart.o : my_uart.c ../toolchain/drive_c/MCC18/h/usart.h messages.h my_uart.h my_uart.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h ../toolchain/drive_c/MCC18/h/pconfig.h
	$(CC) -p=18F2680 "my_uart.c" -fo="my_uart.o" $(CFLAGS)

uart_thread.o : uart_thread.c ../toolchain/drive_c/MCC18/h/stdio.h uart_thread.h uart_thread.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h ../toolchain/drive_c/MCC18/h/stdarg.h ../toolchain/drive_c/MCC18/h/stddef.h
	$(CC) -p=18F2680 "uart_thread.c" -fo="uart_thread.o" $(CFLAGS)

timer1_thread.o : timer1_thread.c ../toolchain/drive_c/MCC18/h/stdio.h messages.h timer1_thread.h timer1_thread.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h ../toolchain/drive_c/MCC18/h/stdarg.h ../toolchain/drive_c/MCC18/h/stddef.h
	$(CC) -p=18F2680 "timer1_thread.c" -fo="timer1_thread.o" $(CFLAGS)

timer0_thread.o : timer0_thread.c ../toolchain/drive_c/MCC18/h/stdio.h timer0_thread.h timer0_thread.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h ../toolchain/drive_c/MCC18/h/stdarg.h ../toolchain/drive_c/MCC18/h/stddef.h
	$(CC) -p=18F2680 "timer0_thread.c" -fo="timer0_thread.o" $(CFLAGS)

my_i2c.o : my_i2c.c ../toolchain/drive_c/MCC18/h/i2c.h messages.h my_i2c.h my_i2c.c maindefs.h ../toolchain/drive_c/MCC18/h/p18f2680.h ../toolchain/drive_c/MCC18/h/pconfig.h
	$(CC) -p=18F2680 "my_i2c.c" -fo="my_i2c.o" $(CFLAGS)

clean : 
	$(RM) "main.o" "messages.o" "interrupts.o" "user_interrupts.o" "my_uart.o" "uart_thread.o" "timer1_thread.o" "timer0_thread.o" "my_i2c.o" "Proj1.cof" "Proj1.hex" "Proj1.map"

prog : Proj1.hex
	$(PK2CMD) -A3.3 -B$(PK2PATH) -P -M -FProj1.hex -Y -T

Programming

See the PICKit 2 article for programming your hex file natively using pk2cmd.

Debugging

Reading printf-style debugging messages over UART with the PICKit 2 is possible from a Windows virtual machine with USB passthrough.

External Links

Retrieved from "https://vtluug.org/w/index.php?title=PIC&oldid=2979"