Matrix MI3932 MIAC AllCode, Руководство по началу работы, Страница: 28 / 29

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API Documentation
Peripheral
MIAC AllCode
Instructional Guide
SD Card
Return Command Parameter(s) Description
Status CardInserted Checks to see if an SD card is inserted
Status = 0 to 1 - 0=No Card / 1=Card Present
Status CardOpen Filename Attempts to open a file from the SD card
Filename = “filename.txt”
Status = 0 to 255 - 0=OK / 239=FileNotFound
Value CardReadByte Reads a byte from the open file
Value = 0 to 255
Status CardWriteByte Value Appends a byte to the end of the open file
Value = 0 to 255
Status = 0 to 255 - 0=OK / >0=Error
Status CardCreate Filename Attempts to create a file from the SD card
Filename = “filename.txt”
Status = 0 to 255 - 0=OK / 1=FileExists
Status CardDelete Filename Attempts to delete a file from the SD card
Filename = “filename.txt”
Status = 0 to 255 - 0=OK / 239=FileNotFound
Real Time Clock
Return Command Parameter(s) Description
Value ReadRTC Unit Reads a value from the real time clock
Unit = 0 to 5 - 0=Sec / 1=Min / 2=Hour / 3=Day /
4=Month / 5=Year
Value = 0 to 99
WriteRTC Unit
Value Writes a value to the real time clock
Unit = 0 to 5 - 0=Sec / 1=Min / 2=Hour / 3=Day /
4=Month / 5=Year
Value = 0 to 99
Serial Communications
Return Command Parameter(s) Description
Value CommsRead Timeout Reads a byte from the alt communications bus
Timeout = 0 to 255
Value = 0 to 255
CommsWrite Value Writes a value to the alt communications bus
Value = 0 to 255
CommsBaud Baud Sets the speed of the alt communications bus
Baud = 0 to 7 - 0=1200 / 1=2400 / 2=4800 / 3=9600
4=19200 / 5=38400 / 6=57600 / 7=115200
Keypad
Return Command Parameter(s) Description
KeyPress ReadKey Reads the last recorded keypress from the keypad buffer
KeyPress = 0 to 255 - 0=F2 / 1=Left / 2=F1 / 3=Down /
4=OK / 5=Up / 6=Return / 7=Right / 8=Menu /
255=No Press