DOC1925 datasheet(43/61 Pages) ETC1

43 / 61 page

Using AVR Studio

AVR STK500 User Guide

5-3

1925C–AVR–3/03

5.3.1.4

EEPROM

If the STK500 user interface is opened without a project loaded in AVR Studio, the “Use

Current Simulator/Emulator EEPROM Memory” option will be grayed out. When a

project is open, this option allows programming of the EEPROM memory content cur-

rently present in the EEPROM Memory view. For more information about AVR Studio

memory views, please take a look in the AVR Studio Help file.

If no project is running, or the source code is stored in a separate hex file, select the

“Input HEX File” option. Browse to the correct file by pressing the

button or type the

complete path and filename in the text field. The selected file must be in “Intel-hex” for-

mat or “extended Intel-hex” format.

5.3.2

“Fuses” Settings

In the “Fuses” tab an overview of accessible fuses are presented. Some fuses are only

available during High-voltage Programming. These will be displayed but not accessible

if operating in ISP programming mode. Press the “Read” button to read the current

value of the fuses, and the “Write” button to write the current fuse setting to the device.

Checking one of these check boxes indicates that this fuse should be enabled/pro-

grammed, which means writing a “0” to the fuse location in the actual device. Note that

the selected fuse setting is not affected by erasing the device with a chip-erase cycle

(i.e., pressing “Chip Erase” button in the “Program” settings).

Detailed information on what fuses are available in the different programming modes

and their functions can be found in the appropriate device datasheet.

Figure 5-3. Fuses

DOC1925 数据表(PDF) 43 Page - List of Unclassifed Manufacturers