https://wiki.autosportlabs.com/index.php?action=history&feed=atom&title=MJLJ_Firmware_updateMJLJ Firmware update - Revision history2026-10-12T01:48:11ZRevision history for this page on the wikiMediaWiki 1.44.0https://wiki.autosportlabs.com/index.php?title=MJLJ_Firmware_update&diff=1060&oldid=prevBrentp: General info page on updating firmware2008-07-15T08:51:42Z<p>General info page on updating firmware</p>
<p><b>New page</b></p><div>These are general instructions for uploading firmware to MJLJ V3 or V4. <br />
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==Preparation==<br />
* Before flashing the new firmware, save your Ignition Configuration to a file, as it will be overwritten with default data during the flashing process. Once the Ignition Configuration is saved, close the Configuration Software.<br />
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* Download the [http://www.autosportlabs.net/asl_dist/mjlj/hc08sprg.exe Firmware programming software]- save it to the same directory where the new firmware is located.<br />
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* Open a command window (Click Start / Run, and enter 'cmd') and navigate to the directory where you downloaded the new files.<br />
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==Flashing the firmware==<br />
Ensure the unit is connected to the computer's serial port, and is not powered up.<br />
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At the command prompt, enter the following command:<br />
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> hc08sprg.exe COM1 FIRMWARE_VERSION.s19 <br />
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*Replace ''FIRMWARE_VERSION.s19'' with the name of the firmware file you actually downloaded.<br />
*Replace ''COM1'' with the appropriate COM port used to communicate with the MJLJ.<br />
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The program will indicate it is waiting for a signal from the MJLJ processor. Once you see this message, apply power to the MJLJ- you will see some additional information, and then you will be prompted to continue programming. If you are ready to flash the new firmware, enter 'Y'.<br />
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If all goes well, you will see a progress indicator as the processor is loaded with the new firmware image.<br />
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Here is a typical output from a successful firmware upgrade:<br />
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c:\>cd c:\mjlj<br />
c:\mjlj>hc08sprg.exe COM1 mjlJunior_V3.2.1.s19<br />
Waiting for HC08 reset ACK...received 0xfc (good).<br />
Calibration break pulse sent. Count: 1<br />
Bootloader version string: KX8-IR<br />
Available flash memory: 0xE000-0xFC7F<br />
Erase block size: 64 bytes<br />
Write block size: 32 bytes<br />
Original vector table: 0xFFDC<br />
Bootloader user table: 0xFC80<br />
Bootloader data (hex): 82 80 00 00 00 66 20 f3<br />
Are you sure to program part? [y/N]: y<br />
Memory programmed: 100%<br />
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==Troubleshooting==<br />
* '''USB to serial adapters''': The firmware updating software is not compatible with certain USB to serial adapters. If you experience errors during the upgrade process, try performing the upgrade on a computer with a built-in serial port, or try using a different USB-Serial adapter.<br />
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==Post upgrade==<br />
Power-cycle the MJLJ controller and restart the Configuration Software. Update the Global Controller Options as necessary, then load and flash the Ignition Configuration you previously saved.</div>Brentp