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Chapter 7
7.2 Flash Programming with Flash Programmer
7.2.1 Programming environment
Host machine
Figure 7-2
266
A dedicated flash programmer can be used for external writing of the flash
memory.
• On-board programming
The contents of the flash memory can be rewritten with the microcontroller
mounted on the target system. Mount a connector that connects the flash
programmer on the target system.
• Off-board programming
The flash memory of the microcontroller can be written before the device is
mounted on the target system, by using a dedicated programming adapter.
The necessary environment to write a program to the flash memory of the
microcontroller is shown below.
RS-232-C
USB
Flash programmer
Note: FLMD1 connection may be replaced by a pull-down resistor on the board
Environment to write program to flash memory
A host machine is required for controlling the flash programmer.
Following microcontroller serial interfaces can be used as the interface
between the flash programmer and the microcontroller:
• asynchroneous serial interface UART
• clocked serial interface CSI
• serial debug interface N-Wire
If a CSI interface is used with handshake, the flash programmer's HS signal is
connected to a certain V850 port, in the following generally named as
HSPORT. The port used as HSPORT for this product is given in Table 7-6.
Flash memory programming off-board requires a dedicated programming
adapter.
In this chapter the terms UART and CSI may be used generically for the
dedicated interface types and channels the microcontroller provides. UART
and CSI signal names are used accordingly.
User's Manual U18743EE1V2UM00
FLMD0 (FLMD1
V
DD
Axxxx
V
Bxxxxx
SS
Cxxxxxx
STATVE
PG-FP4
RESET
UART/CSI
N-Wire
HS
Flash Memory
Note
)
V850
microcontroller
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