https://www.steeman.be/categories/mespelare-vscp/Recent content in Mespelare VSCP on steeman.beHugo -- gohugo.ioen-usSun, 22 Feb 2015 00:00:00 +0000https://www.steeman.be/posts/change-can-speed/Sun, 22 Feb 2015 00:00:00 +0000https://www.steeman.be/posts/change-can-speed/Switching the Hasselt VSCP firmware from its non-standard 250 kbps CAN bus speed back to the 125 kbps everyone else uses. A small register change in vscp18f_init().https://www.steeman.be/posts/actuating-a-local-output-from-a-local-input-trigger/Tue, 10 Feb 2015 00:00:00 +0000https://www.steeman.be/posts/actuating-a-local-output-from-a-local-input-trigger/Making a Mespelare VSCP node switch its own relays from its own buttons, so the lights keep working when the bus is down. Covers the code hook, a configurable output mapping and output modes.https://www.steeman.be/posts/update-sendcanframe/Thu, 05 Feb 2015 00:00:00 +0000https://www.steeman.be/posts/update-sendcanframe/Fixing a hang in sendCANFrame() when VSCP Works reads many registers at once, with a one-second send timeout.https://www.steeman.be/posts/changing-interrupt-timer-period/Tue, 27 Jan 2015 00:00:00 +0000https://www.steeman.be/posts/changing-interrupt-timer-period/Changing the Hasselt firmware’s Timer0 tick from 10 ms to 1 ms for the Mespelare node, and updating the code that relied on the old period. Includes a scope capture of the result.https://www.steeman.be/posts/new-action-pulse/Sat, 24 Jan 2015 00:00:00 +0000https://www.steeman.be/posts/new-action-pulse/A new Pulse action for the Hasselt firmware, so the decision matrix can drive the pulse relays in my house. Firmware, MDF and decision matrix changes.https://www.steeman.be/posts/building-a-custom-mdf/Tue, 20 Jan 2015 00:00:00 +0000https://www.steeman.be/posts/building-a-custom-mdf/A walk through the structure of a VSCP Module Description File, from the XML header and module information to the registers, using the Mespelare module’s own MDF as the example.https://www.steeman.be/posts/vscp-register-addressing/Tue, 20 Jan 2015 00:00:00 +0000https://www.steeman.be/posts/vscp-register-addressing/How VSCP register addressing works: how registers in the MDF map onto the node’s application space and how the firmware stores them.https://www.steeman.be/posts/mespelare-proof-of-concept/Sat, 03 Jan 2015 00:00:00 +0000https://www.steeman.be/posts/mespelare-proof-of-concept/A final prototype, Mespelare v9, to make sure the board design is right before ordering production PCBs. The fixes from v6, the tests and the firmware.https://www.steeman.be/posts/updating-vscp-firmware/Tue, 30 Dec 2014 00:00:00 +0000https://www.steeman.be/posts/updating-vscp-firmware/Updating the Mespelare node to the latest vscp_firmware from GitHub, and the compile errors and changes that came with it.https://www.steeman.be/posts/dumping-eeprom-contents/Sat, 29 Nov 2014 00:00:00 +0000https://www.steeman.be/posts/dumping-eeprom-contents/A DumpEEPROM() routine that prints the node’s EEPROM over the serial port, to check what VSCP Works actually wrote. Needed because every published Hasselt MDF turned out to be wrong.https://www.steeman.be/posts/adding-serial-debugging/Tue, 18 Nov 2014 00:00:00 +0000https://www.steeman.be/posts/adding-serial-debugging/Adding a serial debug port to the Hasselt VSCP firmware, so you can watch variables and program flow while the PIC runs. One #define switches all the debug output on or off.https://www.steeman.be/posts/the-mespelare-decision-matrix/Mon, 17 Nov 2014 00:00:00 +0000https://www.steeman.be/posts/the-mespelare-decision-matrix/Configuring the Mespelare node’s decision matrix through its registers so it reacts to events on the VSCP bus.https://www.steeman.be/posts/running-the-mespelare-firmware/Tue, 23 Sep 2014 00:00:00 +0000https://www.steeman.be/posts/running-the-mespelare-firmware/Adapting the Hasselt code to the Mespelare board: pin assignments, the MDF location and setting the registers, then running it on the hardware for the first time.https://www.steeman.be/posts/mespelare-vscp-firmware/Fri, 19 Sep 2014 00:00:00 +0000https://www.steeman.be/posts/mespelare-vscp-firmware/Compiling kurtsidekick’s Hasselt firmware for the first time in MPLAB X, as the starting point for the Mespelare firmware: target settings, preserving EEPROM and programming the test board.https://www.steeman.be/posts/mespelare-vscp-node/Mon, 15 Sep 2014 00:00:00 +0000https://www.steeman.be/posts/mespelare-vscp-node/The Mespelare VSCP node: a CAN bus board that reads a Niko six-button panel, drives its LEDs and six relay outputs, and breaks out the rest of the pins for expansion boards.