Lattice LatticeMico8, User Manual

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LatticeMico 8 Microcontroller
Lattice Semiconductor User’s Guide
R01 = 0x08
0x00006 0x0A101 addi R01,0x01
R01 = 0x09
0x00007 0x10308 mov R03,R01
R03 = 0x09
0x00008 0x10410 mov R04,R02
R04 = 0x03
0x00009 0x12535 movi R05,0x35
R05 = 0x35
0x0000A 0x12643 movi R06,0x43
R06 = 0x43
0x0000B 0x08628 add R06,R05
R06 = 0x78
0x0000C 0x0A613 addi R06,0x13
R06 = 0x8B
0x0000D 0x10728 mov R07,R05
R07 = 0x35
0x0000E 0x10830 mov R08,R06
R08 = 0x8B
0x0000F 0x12916 movi R09,0x16
R09 = 0x16
0x00010 0x12ADF movi R10,0xDF
R10 = 0xDF
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Building Simulator from Source
Although Lattice provides precompiled binary files, the source is available for compilation. The following commands
should be used in the Unix and Windows environments.
• Unix and Cygwin Environments:
gcc -o isp8sim isp8sim.c
• Windows Environment:
cl -o isp8sim_win isp8sim.c
Example
To display the features and capabilities of the LatticeMico8, a demonstration example is also available. It demon-
strates the interaction between the timer and the controller and the interrupt capability.
# This program will allow user to run a fibonacci number
# generator and updown counter. This program responds to
# the interrupt from the user (through Orcastra).
# When there is an interrupt, the program will halt the current program,
# and execute the int_handler function. When the intr_handler function
# is done, the program will continue from its last position
b int_handler
nop
nop
seti
# set the program to be able to receive interrupt
nop
nop
b start