PIC18 Bootloader
This bootloader is an modified version of Diolan’s bootloader.
Is a nice piece of software, very easy to use, fast, driverless (HID device).
With all options active, complied code is under 2048 bytes.
Changes
– all extended instructions was replaced with standard instructions
– code re-arranged, all configurations moved into .cfg files
– protocol commands changed (no more compatible with Diolan “fw_update” application)
– cmds read_id & write_id removed for security reasons
– ported to PIC18F 25K50,45K50
How to compile
- Install Microchip’s MPLAB
- Edit Buid.cmd and change paths to mpasmx.exe, mplink.exe and processor type
- Optional: Change VID/PID and encryption key
- Edit bootloader.cfg according to your hardware
- Run Build.cmd !
How to use
- Write bootloader to PIC using a programmer (ex. ICD2 or PicKit2.. etc)
- Start your device into bootloader-mode (eg. keeping BL button pressed while reset/power on)
- Run PicBLFlash.exe, select .hex file then write
Hints
- If you change bootloader VID/PID update PicBLFlash.cfg with proper values
- A small test firmware is included: I/O pins was configured for Pololu P-Star 25K50 and you need MikroPascal to compile
Download
PIC18_Bootloader_v1.7.zip (43.5 KiB)
MD5: 9ad7de0aeaa7cd20ea3fd6e73f2eae3f
PicBLFlash_v1.0_B205.zip (279.2 KiB)
MD5: 60059dc19869d0cfd5538e6b5cb50979
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