DM163025 Microchip Technology, DM163025 Datasheet - Page 28

• Manufacturer Part Number: DM163025
• Description: PIC DEM FULL SPEED USB DEMO BRD
• Manufacturer: Microchip Technology

Specifications of DM163025

• Main Purpose: Interface, USB 2.0 Host/Controller
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: PIC18F2455/2550/4455/4550
• Primary Attributes: Full Speed (12Mbps)
• Secondary Attributes: MPLAB ICE 2000/4000 Emulator Interface, Temp Sensor, Expansion and PICtail Headers
• Processor To Be Evaluated: PIC18F4550
• Interface Type: RS-232, USB
• Silicon Manufacturer: Microchip
• Core Architecture: PIC
• Core Sub-architecture: PIC18
• Silicon Core Number: PIC18F
• Silicon Family Name: PIC18F4xxx
• Kit Contents: Demo Board, Cables, CD & Documents
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: Q2086254

DS51526B-page 24
™
3.5.3
Once the board has been selected in the dropdown list, the bootloader control buttons
become active (Figure 3-5).
FIGURE 3-5:
• Load HEX File: This loads a hex file into the memory buffer and displays the con-
• Read Device: The read device function reads the entire memory range into the
• Erase Device: The erase device function erases the user program memory space
• Execute: The execute function sends a Reset command to the bootloader firm-
• Save To HEX File: The save to hex file function saves the data contained in the
tent in the message window. The data loaded can be used to program a target
device. A valid hex file must conform to the Intel
is selected, a warning message, “WARNING - No HEX file data.”, is displayed.
If device configuration data is present, the bootloader firmware will check it for
configuration conflicts that might disable the board. These are discussed in
more detail in Section 3.5.4 “Consideration When Using the Bootloader”.
Each project’s hex file, MCHPUSB.hex, can be found in the ‘_output’
directory (i.e., C:\MCHPFSUSB\fw\Cdc\_output and
C:\MCHPFSUSB\fw\Hid\Mouse\_output).
memory buffer and displays the content in the message window. Program mem-
ory, EEPROM, the User ID and configuration data are all read. A successful read
operation is indicated by the message “MESSAGE - Read Completed” in the
Message window. If the operation failed, a warning, “WARNING - Failed to read”,
is shown.
only (0x0800 to 0x7FFF). It does not erase the EEPROM, User ID or configuration
data.
ware, causing a microcontroller Reset. If S2 is not pressed during this time, the
user code in program memory will start executing; otherwise, the firmware will
re-enter the Bootload mode. If the operation failed, perform a hard Reset on the
demo board by pressing S1.
memory buffer to a file, whether it was loaded from the read device or load hex file
functions. It only saves the data type present in the memory buffer. If a hex file is
loaded and does not have a particular type of memory (i.e., EEPROM), that data
section will not be saved in the output file. All memory sections are always loaded
after a read device function.
Using the Bootloader
BOOTLOAD MODE CONTROLS
®
HEX 32 format. If an invalid file
© 2008 Microchip Technology Inc.