After that the XMOS chip will calculate the next buffer using all its power-magic. Once the timer calls the interrupt, it will set the PWM of the two outputs to a previously saved variable, just like the BeatVox = 1 sample buffer delay.Īfter that, it will send data to the XMOS chip telling what was changed in terms of parameters, send MIDI data and ask for the last processed sample buffer, store, and rest. One timer we call at X samples, that will do the 10bit PWM, like we did on the BeatVox project: BUT, since the ATmega328 will be taking care of this, we would use the XMOS chip only for 32-bit math, and let the ATmega328 (Arduino board) take care of the rest. So, usually those chips use a thread for UART, another for PWM which would kill the whole chip for those simple things. Please refer to the device datasheets, which contain appendices with PCB layout and schematic design checklists. The XS1-L Hardware Design Checklist is no longer available. xmos.ai – 20 Apr 10 XS1-L Hardware Design Checklist | XMOS how to program blank chips? - XCore ExchangeĪnd here are a couple of PDF file that talks about the basic structure on how to setup the chip. Here's a thread about how to start-up with those chips: Starting up. Unless the user wanted to really mess around with the chip, then a "XMOS XTAG2 Debug Adapter" would be required. The idea is to make the Arduino board talk to the XMOS chip telling what to do, plus, also upload the data to the SPI Flash, so it wouldn't require any extra tools to program the XMOS chip. Here's a single chip on SparkFun: XMOS Processor - XS1-L1-64 - COM-10109 - SparkFun Electronics
Its 32 bits with 64 bits accumulators (no idea on how to use those yet) 64 Kb of RAM (used by the program + variables, AFAIK) and can auto-boot from an external SPI Flash. ( - The cheapest one does 4 x 100 Mhz threads (you can't have a single 400 Mhz thread sadly) or 8 x 50 Mhz Threads. To combine a regular Arduino and a XMOS chip. Here's a very crazy idea I had the other day, which I still don't know if its doable or not.
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