Flash Memory Refresh; Preparation For Flash Memory Refresh - Renesas SH7727 General Information Manual

R0P7727TH003TRKE General Information Manual

10. Flash Memory Refresh

When refreshing the contents of the flash memory on T-Engine or the internal flash memory of the power
supply controller (H8/3048F-ONE), connect the debug board to the expansion slot of T-Engine and run the
program stored in the EPROM on the debug board.

10.1 Preparation for Flash Memory Refresh

Connect the debug board to the expansion slot (CN2) of T-Engine. In addition, make the following settings
for the jumper switch.
For details, refer to 2.4.2 "Debug Board Connection" and 2.4.3 "Debug Board Jumper switch."
Debug board jumper switch (J1): Pins 1 and 2 must be short-circuited (EPROM allocation to an address
range from h'00000000 to h'00FFFFFF).
Debug board jumper switch 2 (J2): Pins 1 and 2 must be open (SH7727 normal operation).
Connect the serial interface connector (CN1) of T-Engine and host system with an RS-232C interface cable
(accessory). Start communication software on the host system and make the following settings.
Baud rate: 115200bps
Data length: 8 bits
Parity bit: None
Stop bit: 1 bit
Flow control: Xon/Xoff
After making the above settings, turn on the power of T-Engine, and the title screen --- screen indicating the
execution status of the program stored in the EPROM --- will be displayed on the communication software as
shown below.
[Display Screen]
====================================================
T-Engine (MS7727CP01) DownLoader VerX.XL
-----------------------------------------------------------------------------------------
====================================================
Ready>
H [elp] for help messages...
103
Flash Memory Refresh