KIT33903 Evaluation Boards
, Rev. 1.0
Freescale Semiconductor
13
Using the EVB
7.1.2
Reading and Writing Commands to Exercise SBC and Acquire Its
Status
General Flags
Options to send SPI commands
Registers
Hexadecimal value of SPI
command sent and received
Send a
Simple Watchdog
‘Go to Normal Mode’ command
Stores commands sent
in a text file
Read General Flags
Device Status and
Flags sections
Adds all commands on
tab to
Sequential Mode
sequence
Check to Auto Read all
flags every 500ms
Device status
decoded
Register bits [7:0]
of corresponding
tab address
(bits [15:8] not shown)
Device Selection
Function to be written
of corresponding tab
Send command as configured
to corresponding tab address
Read device status and
enabled functionality
Adds command
to
Sequential Mode
sequence
Figure 6. SPIGen Graphical User Interface (Commands and Device Status)
1. In the
Registers and Flags
tab, click
Register address high (b7=1)
sub tab to read device status
and enabled functionality as shown in
Figure 6
.
2. Initialize the registers by clicking one of the options
Init Vreg
/
Init Wdog
/
Init Lin-I/O
/
Init MISC
and then click
WRITE
.
3. Click
WD Refresh
to go to Normal mode and then click
Single WD Write Command
.
4. Click
Mode+RM
to go to low power mode and then click
WRITE
.
