M3A-0033 Renesas Electronics America, M3A-0033 Datasheet - Page 32

• Manufacturer Part Number: M3A-0033
• Description: DEV EVALUATION BOARD FOR M66291G
• Manufacturer: Renesas Electronics America

Specifications of M3A-0033

• Main Purpose: USB Controller
• Embedded: *
• Utilized Ic / Part: M66291
• Primary Attributes: *
• Secondary Attributes: *
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

INT_3:
9.7 Performing Debug Using Symbols
9.8 Corrective Action when Communication Error Occurs at Start up
9.9 Corrective Action when Communication Error Occurs During Debug
M66291GP Evaluation Board
When using the INT instruction to debug your program, follow the procedure shown below. Set a software break for
the internal processing of the INT instruction and use it in combination with the Go command.
To debug your program using symbols in KD308, add the debug option (-g) in KNC308WA before compile the
programs.
If a communication error occurs during start up, check the following:
If a communication error occurs during debug, one probable cause is that the monitor program is made to go wild by
the user program (ex, user programs runaway or access to monitor area). In such a case, follow the procedure below
to initialize the system:
When the above is done, you can restart debugging. However, because the data in the user program area may have
been damaged, recommends downloading your program again before you start debugging. If many communication
error happen , check this.
<Your program have interrupt program. And don't set I flag in interrupt program>
When this interrupt program spend a time over 260us, please set I flag = 1 in the beginning of interrupt program.
(3) Operation of While Disable Interrupt
(1)Whether the M3A-0033 hardware is correctly set up
(2) Whether cable is firmly connected and whether the power is turned on.
(3) Whether the serial port set in the Init dialog box matches the actual serial port where the M3A-0033 is
(1) Press the [OK] button in the error dialog box to close it.
(2) When an Exit dialog box appears, press the [Cancel] button to close it.
(3) Press KD308 reset button.
<Example>
NOP
NOP
INT #3
NOP
JMP MAIN
NOP <- break
NOP
REIT
When to be disable interrupt , can't use STEP command while disable interrupt. 1 STEP command go at enable
interrupt.
<Example>
FCLR I
AND
NOP
NOP
FSET I
connected.
#00H, 0055H ; Change Timer Interrupt
Execution by GO command
; Disable interrupt
; Enable Interrupt
- 28 -
1 STEP command go to enable interrupt
M3A-0033