I'm using kboot 2.0 and KDS 3.2. I'm trying to get kboot running as a mass storage device on a MKL25Z128. So that I can plug the KL25 into a PC, have it appear as a drive, then drag&drop a firmware file onto it.
I've succeeded in building KBOOT and programming it into the KL25. I took the "freedom bootloader" project, and modified bootloader_config.h so that only MSC was selected.
#define BL_CONFIG_UART (0)
#define BL_CONFIG_I2C (0)
#define BL_CONFIG_SPI (0)
#define BL_CONFIG_USB_HID (0)
#define BL_CONFIG_USB_MSC (1)
When I plug the KL25 into a windows PC, a drive pops up! Amazing. What a good start. But I can't progress beyond this.
The "status.txt" file says "ready". This is Info.txt:
Kinetis Bootloader K2.0.0
System device ID: 0x25152486
Flash size: 131072 bytes
Flash range: 0x00000000-0x0001ffff
Flash sector size: 1024 bytes
Flash blocks: 1
RAM size: 16384 bytes
RAM range: 0x1ffff000-0x20002fff
Reserved region 0: 0x00000000-0x000073ff
Reserved region 1: 0x1ffff000-0x2000111f
Verify writes: yes
Check reserved regions: yes
Boot config present: no
Peripheral detection timeout: 5000 ms
CPU clock: 48000000 Hz
To test the bootloader, I built the example project LED_demo_freedom_8000, then drag&dropped the resulting S-record file (named led_demo_freedom_8000.srec) into the drive. Nothing interesting happened, it appeared to be ignored, and the status.txt file continued to say "ready". I also tried creating a "raw binary" .bin file instead of a .srec file, but the bootloader didn't appear interested in that file either.
Both the bootloader & the led_demo project were built as "release".
Any idea what's going on? Why can't I drop the led_demo file into the KL25Z?
Many thanks for any suggestions!