3. Operating Procedures
•
The clock is not oscillating correctly.
Consider the following possible causes if transfer is not possible even though the PLL_Locked pin (Port13)
has switched to High.
•
The CLKSEL pin setting does not match the clock frequency.
•
The RS-232 cable (cross/straight) used is incorrect for the circuit board wiring.
•
The terminal software settings differ from those described in Table 2-1.
3.1
Key Input Specifications
The key input specifications are as follows:
•
The Enter key confirms the string entered.
•
Only single-byte alphanumeric characters can be entered. Double-byte characters are invalid.
•
Input is not case-sensitive.
3.2 Main
Menu
Start these functions by entering “menu” via the PC terminal software. This will display the items
shown in Table 3-1.
Table 3-1 Main menu list
Key Input
Item
Summary
1
USB analog test
Allows switching to Test mode.
2
Diagnostic
Starts the history display function.
q
Quit
Quits the function.
3.2.1 USB
Analog
Test
When key input “1” is received, then the operation menu is displayed and to allow
switching to Test mode. For detailed information, refer to
S1R72U16 Embedded Host
Compliance Guide
.
3.2.2 Diagnostic
When key input “2” is received, then the operation menu is displayed and to start the
history display function. For detailed information, refer to “3.3 History Display Function
Menu”.
3.2.3 Quit
When key input “q” is received, then this quits the function. The function will be
unavailable until the “menu” is invoked once again.
4
EPSON
S1R72U16 Development Support
Manual (Rev.2.00)
