jsPIC - Javascript Inspired PIC Framework

Authors: Matt Ibarra, Seo Townsend 2013

Currently supports the PIC18F2680 jsPIC is a platform for the PIC18 processor that provides a javascript inspired API with 'remoting' capabilities for RPC.

*The networking architecture allows for meshing PIC's togeather. E.g. If you have three PIC's, two linked by I2C and two linked by serial, they will all communicate just fine within the networking framework. jsPIC supports a lightweight search algorithm that will find the correct PIC even if it has to route through other PIC's.

Examples

Blink a light every second

blink() {
  LA0 = ~LA0;
}

onSetup() {
  SetInterval(1000, blink);
}

onLoop() {
}

##Message an adjacent PIC over I2C slave/master (A is slave, B is master)

PIC A (Slave):

call() {
  LA0 = ~LA0;
  
  Packet_t *packet = AsyncMessage;
  unsigned char *data = packet->data;
}

onSetup() {
  TwitterSignUp("@a");
  TwitterAddWireSlave(0x4F);
  TwitterRegisterSubject("c", call);
}

onLoop() {
}

PIC B (Master):

call() {
  LA0 = ~LA0;
}

onSetup() {
  TwitterSignUp("@b");
  TwitterAddWireMaster();
  TwitterWireMasterAddSlave(0x4F, "@a");
  
  //Send message to A
  memcpy(message, "hello", 5);
  Tweet("@a", "c", message);
}

onLoop() {
}

##Message an adjacent PIC over I2C slave/master and serial (A is slave, B is master, C is serial) A <=i2c=> B <=serial=> C

PIC A (Slave):

call() {
  LA0 = ~LA0;
  
  Packet_t *packet = AsyncMessage;
  unsigned char *data = packet->data;
}

onSetup() {
  TwitterSignUp("@a");
  TwitterAddWireSlave(0x4F);
  TwitterRegisterSubject("c", call);
}

onLoop() {
}

PIC B (Master):

onSetup() {
  TwitterSignUp("@b");
  TwitterAddWireMaster();
  TwitterAddSerial();
  TwitterWireMasterAddSlave(0x4F, "@a");
}

onLoop() {
}

PIC C (Master):

call() {
  LA0 = ~LA0;
}

onSetup() {
  TwitterSignUp("@c");
  TwitterAddSerial();
  
  //Send message to A
  memcpy(message, "hello", 5);
  Tweet("@a", "c", message);
}

onLoop() {
}

File Breakdown

JWire.c - Raw I2C Slave access

main.c - User onSetup() and onLoop() code goes here

serial.c - Raw Serial Access

twitter.c - IPC networking managere

twitterSerial.c - Driver for using serial.c with Twitter

twitterWireMaster.c - I2C Master driver for using wireMaster.c with Twitter

twitterWireSlave.c - I2C Slave driver for using JWire.c with Twitter

wireMaster.c - I2C Master raw access

Async.c - Asynchronous function que

Interurpts.c - Interrupt handler

jspic.c - Main function that calls onSetup() and onBegin()