JTAG is nice but I didn’t have the free I/O or board space for it. The JTAG connections are not even brought to port pins–they are used for the buttons and LEDs. One thing to note, the SSC-NG board does not have a JTAG header. I guess that preference shows in the SSC-NG board. You never seem to have enough power and ground pins nearby otherwise. Personally, I like the 3-pin (signal, V, GND) headers for servos and sensors. It’s a nice board and if the I/O mix suits your needs there is no reason not to go with it for C programming. I have an older version of the Mavric IIB. The other is it easier to place the board on the robot and still make it easy to position the serial connector where it is easy to plug it in. The nice thing of removing it from the board is it gives you more space to add other things. The picture included the one from the SRS. One thing I like about the other two boards is that they removed the big 9 pin connector from the board and connect them with a wire. Here is a picture of the Maveric, next to an ABB and also a SRS workshop board. I was starting off with a Maveric 1B as it had lots of IO pins, JTAG and the like, but I wonder if I should wait for your board. I think I may instead start off with my Rover instead. I prefer to program in C and at one point I was just starting to convert the code for the HEX to C. This board is along the lines that I am very much interested in. I just reread this thread after Jim Posted images of it up on the website. Right now I am just trying to get the prototype SSC-NG board up and running with a “new and improved” bootloader, and the I/O expander has not even been laid out yet. Once the mapping is set up, this will be transparent to the user.īear in mind that this is the long-term vision. The SSC-NG will support up to 32 servos, and will have registers to map servo number (0-31) to any port pin on the main board or a pin on one of the connected I/O expanders. The nice thing is that the SSC-NG will be able to use I/O expander ports for servo group moves as though they were on the main board. At least 2, and probably up to 4, I/O expanders will be supported. Current plan is that each I/O expander will use one of the 20 I/O points on the main board, but provide 8 new I/O, for a net gain of 7 I/O. There will be an I/O expander board with 8 I/O points that can be connected to the SSC-NG.
I hate to advertise vaporware, but eventually the SSC-NG will have a solution for your 24 servos. 20 servos is ideal, perfect for a hexapod, 18 for the legs, 2 for a Pan-tilt camera setup.Ģ4 for an Octapod’s 3DOF legs, 6 for an arm with 2DOF gripper, 2 left over.
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