call cat cat_logmpp cd cpup date dmesg
findsym free help hwi i2c_read i2c_write lddrop
ls lsfd mclose memcheck mkdir mopen proc_ipcm
pwd reset rm rmdir sem ssp_read ssp_write
swtmr systeminfo task uname watch writeproc
常用：
cat
cat_logmpp 抓日誌
cd
i2c_read
i2c_write
ls
ssp_read (SPI的)
ssp_write