systick.py

#!/usr/bin/python

# the instruction set
# TODO port to allocator IR
from boneless.arch.opcode import Instr
from boneless.arch.opcode import *

# the firmare constructs
from spork.firmware.base import *

# the library code
from spork.lib.uartIO import UART
from spork.lib.ansi_codes import AnsiStrings, Term
from spork.firmware.firmware import Firmware

from spork.lib.alloc import Alloc
from spork.lib.scheduler import FCFS, Task

# command infrastructure
from spork.logger import logger

log = logger(__name__)


class tick(Firmware):
    def setup(self):
        "registers in the bottom Window"
        self.w.req(
            ["temp", "counter", "address", "checksum", "incoming_word", "status"]
        )
        self.sc = FCFS()
        t1 = Task()
        t2 = Task()
        t3 = Task(size=32, interval=1043)
        self.sc.add_task(t1)
        self.sc.add_task(t2)
        self.sc.add_task(t3)

    def prelude(self):
        "code before the main loop"
        return []

    # Code objects need to return a list of ASM instructions to do stuff.
    def instr(self):
        w = self.w
        reg = self.reg
        ll = LocalLabels()
        uart = UART()

        return [LDXA(w.temp, reg.systick.value), uart.writeHex(w.temp), uart.cr()]


" load this "
firmware = tick

if __name__ == "__main__":
    from spork.upload import Uploader
    import fwtest

    spork = fwtest.build(firmware, detail=False)
    up = Uploader()
    up.upload(spork)