Important changes to forums and questions
All forums and questions are now archived. To start a new conversation or read the latest updates go to forums.mbed.com.
9 years, 5 months ago.
Bootloader/debug files required for FRDM-KL25Z variant
Hello everyone,
We have designed a board similar to the FRDM-KL25Z with the following Freescale microcontrollers
1) Host: FREESCALE SEMICONDUCTOR MK20DX128VFM5 MCU, 32BIT, CORTEX-M4, 50MHZ, QFN-32 chip 2) Target: FREESCALE SEMICONDUCTOR MKL25Z128VFM4 MCU, 32BIT, CORTEX-M0+, 48MHZ, QFN-32 chip
and are trying to make it mbed compatible but also able to develop target applications using Freescale Kinetis Design Studio (according to https://community.freescale.com/docs/DOC-100720).
The bootloader and debug files we use are stored in https://app.box.com/files/0/f/4057078615/Programmer_firmware
This setup although appears with an mbed serial port and an mbed filesystem under windows, cannot connect with Freescale Kinetis Design Studio for application development/debug.
Anybody could send me the correct files to program the bootloader properly?
Thank you all in advance, Kind regards, Demos
Question relating to:
2 Answers
9 years, 5 months ago.
If the hardware configuration is same (or quite close) with FRDM-KL25Z, how about trying OpenSDA Firmware (MSD & Debug) from P&E Micro? http://www.pemicro.com/opensda/
Download Firmware Apps.zip and after unzip it and try MSD-DEBUG-FRDM-KL25Z_Pemicro_v114.sda
This one works for both mbed and KDS for me with FRDM-KL25Z. (USB serial driver can be downloaded from same page)
Hello and thanks for your answer.
The FRDM-KL25Z has an OpenSDAv1 bootloader which is proprietary to PEMicro and "burnt" into the PK20 chips that are soldered to these boards (and can decode .sda files). Generic MK20 chips that one can buy from Freescale do not have this functionality and hence OpenSDAv2 (which is open-source) was developed. Hence alternative bootloaders in the form of Keil uvision .axf files are needed for this and are programmed via a JTAG cable (the equivalent of J8 header on the FRDM-KL25Z). Any such files (bootloader/axf + debug/bin files would be great to have as the ones I mentioned above cannot connect to my Freescale KDS debugger via CMSIS-DAP.
posted by 24 Jul 2015Oh, I see your point!
In the freescale kinetis community site I could find following page, it seems there are ones for FRDM-K64F and FRDM-K22F but I wonder if one for FRDM-KL25Z could be found.
https://community.freescale.com/docs/DOC-100720
posted by 24 Jul 20159 years, 5 months ago.
Check out the description here on how to bring up the MK20 as a debugger- not sure the instructions are clear, but here it is http://mcuoneclipse.com/2015/04/21/proof-of-concept-open-source-arm-swd-debug-and-general-purpose-board/ http://mcuoneclipse.com/2015/05/17/tinyk20-open-source-arm-debuguniversal-board-first-prototypes/ http://mcuoneclipse.com/2015/05/20/tinyk20-usb-thumb-drive-enclosure/
Thanks for the comprehensive response. I have looked at the documents you mentioned and I have bootloader+debug files (see box directory link above) that can "see" both the host and the target chips on Keil uvision under the CMSIS-DAP debugger, so the files and the card must be OK. My board can enter "bootloader" mode with the reset button presses, otherwise it appears as "mbed" with an mbed serial port present. I could think of the following "problem" which explains why the files work on genuine Freescale boards but have issues with user developped ones?
See below:
Same applies to KEIL that recognizes target but refuses to program or enter debug mode . We suspect some sort of special permission as we checked file board.c(https://github.com/mbedmicro/CMSIS-DAP/blob/master/interface/Common/src/board.c). It seem to ask a BOARD_ID and BOARD_SECRET for our custom hardware as the code produces an error message /* Each board should have a unique ID and secret. For information
- about obtaining a secret contact support@mbed.org
- /
- include "board.h" /* Each board should have a unique ID and secret. For information
- about obtaining a secret contact support@mbed.org
- /
- if defined (BOARD_FRDM_KL25Z) || defined (BOARD_TWR_KL25Z48M)
- define BOARD_ID "0200"
- define BOARD_SECRET "xxxxxxxx"
- elif defined (BOARD_FRDM_KL05Z)
- define BOARD_ID "0210"
- define BOARD_SECRET "xxxxxxxx"
Under Freescale KDS I get the following error
Could someone explain if this is the case? Thanks again Demos
posted by 25 Jul 2015
OpenOCD produces the following
C:\Freescale\KDS_3.0.0\openocd\bin>openocd -f kinetis.cfg Open On-Chip Debugger 0.8.0-dev (2015-01-09-16:22) Licensed under GNU GPL v2 For bug reports, read http://openocd.sourceforge.net/doc/doxygen/bugs.html Info : only one transport option; autoselect 'cmsis-dap' Info : CMSIS-DAP: SWD Supported Info : CMSIS-DAP: Interface Initialised (SWD) Info : add flash_bank kinetis kinetis.flash cortex_m reset_config sysresetreq adapter speed: 1000 kHz Info : CMSIS-DAP: FW Version = 1.0 Info : SWCLK/TCK = 0 SWDIO/TMS = 1 TDI = 0 TDO = 0 nTRST = 0 nRESET = 1 Info : DAP_SWJ Sequence (reset: 50+ '1' followed by 0) in procedure 'init'
C:\Freescale\KDS_3.0.0\openocd\bin>
posted by Demos DOUMENIS 24 Jul 2015