I am a newbie on tinyos.
would anyone like to explain the relationship among main.exe, ihex
file, and the rom/ram size printed when launching make command? Say,
blink on telosb on tinyos 2.1:
/opt/tinyos-2.1.0/apps/Blink$ make telosb
mkdir -p build/telosb
compiling BlinkAppC to a telosb binary
ncc -o build/telosb/main.exe -Os -O -mdisable-hwmul -Wall -Wshadow
-Wnesc-all -target=telosb -fnesc-cfile=build/telosb/app.c -board=
-DDEFINED_TOS_AM_GROUP=0x22 -DIDENT_APPNAME=\"BlinkAppC\"
-DIDENT_USERNAME=\"matianfu\" -DIDENT_HOSTNAME=\"ubuntu\"
-DIDENT_USERHASH=0x03283c3eL -DIDENT_TIMESTAMP=0x48dc730bL
-DIDENT_UIDHASH=0xebb60a89L BlinkAppC.nc -lm
compiled BlinkAppC to build/telosb/main.exe
2650 bytes in ROM
55 bytes in RAM
msp430-objcopy --output-target=ihex build/telosb/main.exe build/telosb/main.ihex
writing TOS image
then I got a /build/telosb folder with following files
-rw-r--r-- 1 matianfu matianfu 164720 2008-09-26 13:28 app.c
-rw-r--r-- 1 matianfu matianfu 175 2008-09-26 13:28 ident_flags.txt
-rwxr-xr-x 1 matianfu matianfu 11430 2008-09-26 13:28 main.exe
-rw-r--r-- 1 matianfu matianfu 7595 2008-09-26 13:28 main.ihex
-rw-r--r-- 1 matianfu matianfu 7952 2008-09-26 13:28 tos_image.xml
main.exe is 11K and ihex file is about 7.6K, what is the difference
between them? if ihex is the final image running on msp430 MCU, then
what is the target platform for main.exe file? I am really confused.
Furthermore. MAKE command prints 2650 Byte in ROM and 55 Bytes in RAM.
Why they are so smaller than the size of main.exe or ihex file? and if
I have an msp430 mcu with only 4K Flash and 512B ram, could this app
run on it? How could I just if the MCU has enough rom/ram for certain
app? by MAKE command print or file size of main.exe/ihex ?
Thanks in advance.
Tianfu Ma
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