Flash Chip Reprogramming (G03) - Renesas 38K0 Instruction Manual

1.10

Flash Chip Reprogramming (G03)

M3A-8K02 enables the user to reprogram the Flash chip (G03) on board. As M38K29F8HPL, bundled with
this board, has been pre-programmed with the Flash rewriting control program, operational verification with the
Flash chip can be done immediately after debug. This rewriting control program can be reprogrammed with
either serial or USB interfacing: Flashwriter MFW-1 (Sunny Labs) or Flash-Over-USB (FOUSB).
As shown in Figure 1.10, the Flash rewriting control program can be selected using the BOOT-MODE switch
(S10 in 2) Table 1.10 shows the setup conditions for the BOOT-MODE switch. By setting the FLASH switch (S9
in 1) to ON and supplying power to the board (Note 2), the FLASH lamp (LED5 in 3) will go on and 38K0/38K2
will be in the Flash reprogramming mode.
when processing the Flash
VCC-SELECT switch (S7) is set to the same voltage as the firmware.
compatible with the system as well.
Note 1: Do not set the BOOT-MODE switches while power is being supplied to the board.
Table 1.10 Selecting
P26
*
*
H
L
*: Either setting
1. FLASH
Switch
Figure 1.10 Selecting the Flash Program
However, if the board Vcc is different than the firmware voltage
rewriting control program,
Flash Rewriting Control Program
P27 P42 P16
* H
H L
L L
L L
3. FLASH
Lamp
RENESAS
38K0/38K2
the chip may be damaged. Make sure the
with BOOT-MODE Switches
Vcc
H 5V Serial Mode (use Flash writer)
H FOUSB 3V/6MHz
3.3V
H 5V FOUSB 5V/12MHz
H 5V FOUSB 5V/6MHz
USB F ull-Speed Microcomputers
Group M3A-8K02
Finally, make sure the oscillator is
Mode
2. BOOT-MODE
Switches
13