Arizona 17 User Manual
PICDEM™ 17 Demonstration Board User’s Guide
DS39024B-page 14
2001 Microchip Technology Inc.
2.10 Modifying Memory Contents
The PICDEM 17 Monitor program has the capability to read from any Data
memory location or internal/external Program memory location. It can also
write to any Data memory location and any external FLASH program memory
location. Writes to internal program memory are not allowed because this
memory is EPROM based.
memory location or internal/external Program memory location. It can also
write to any Data memory location and any external FLASH program memory
location. Writes to internal program memory are not allowed because this
memory is EPROM based.
Figure 2.6: Reading Data Memory
To read from a Data memory location, the user must first select the Data
Memory radio button in the Modify Memory window of the Monitor program.
Then the Data memory address must be written into the Address edit box.
The format of this value is bxx, where b is a valid bank number in HEX
format, and xx is a value from 00h to FFh that indicates the desired address
within the bank to read. Then click the Read button. The message window will
reply with the following message: *RDbxx:dd. bxx represents the bank and
address and dd represents the data found at that address in HEX format. For
this operation the first three digits in the Address edit box are used when the
command is sent to the PICDEM 17 demonstration board. Any additional
digits are ignored.
Memory radio button in the Modify Memory window of the Monitor program.
Then the Data memory address must be written into the Address edit box.
The format of this value is bxx, where b is a valid bank number in HEX
format, and xx is a value from 00h to FFh that indicates the desired address
within the bank to read. Then click the Read button. The message window will
reply with the following message: *RDbxx:dd. bxx represents the bank and
address and dd represents the data found at that address in HEX format. For
this operation the first three digits in the Address edit box are used when the
command is sent to the PICDEM 17 demonstration board. Any additional
digits are ignored.