phyCORE-P87C591 QuickStart Instructions
76
© PHYTEC Meßtechnik GmbH 2002 L-586e_2
The following description is valid only for the FlashTools98 included
with the phyCORE-P87C591 and is not intended as a guideline for
using any other program.
FlashTools98 incorporates a safety mechanism that ensures that the
system bank (bank 0), in which the firmware is resident, can not be
overwritten during programming of the available user banks of the
Flash device.
Resetting the phyCORE-P87C591 also activates the system bank
(bank 0) of the Flash device, which automatically starts the
FlashTools98 firmware. Then the firmware either enters the Flash
programming mode or starts your user application.
To distinguish between download and execution modes, the firmware
latches the /BOOT signal after reset (/BOOT=0 => start Flashtools,
/BOOT=1 => start user program). This signal can be set to a low level
by pressing the Boot (S1) button located on the
phyCORE
Development Board LD 5V. To enter the Flash
programming mode you must simultaneously press the Reset (S2) and
the Boot (S1) button, release the Reset (S2) button first and then, two
to three seconds later, release the Boot (S1) button.
Execution of your user application will always start in the second
64 kByte bank (bank 1, FA[18..15] = 0010b). This is to be noted
when preparing a software copy of the contents of the address
decoder’s internal write-only registers.
The extended features of the address decoder on the
phyCORE-P87C591 allows flexibility when configuring the memory
model according to your needs and addressing additional Flash banks.
Do not use Flash bank 0 in your application program in order to
preserve the FlashTools98 microcontroller firmware and the
associated Flash re-programming capability.
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Страница 84: ...Published by PHYTEC Me technik GmbH 2002 Ordering No L 586e_2 Printed in Germany...