wolfmanjm

\ uses 4 bytes at neopixel_address.. pin# r g b
\ this address is monitored and when it changes the rgb is set

#require gpio-pins.fs

\ byte 0 is r, 1 is g, 2 is b, 3 is pin#
0 variable neopixel-address

\ this is launched on core1
\ starts monitoring the address and does not return

wolfmanjm

\ neopixel.fs traffic lights a neopixel on pin 16, done in assembly bit blitting the data

: neopixel
[
$7179 h, \ addi sp,sp,-48
$c006 h, \ sw ra,0(sp)
$c20e h, \ sw gp,4(sp)
$c412 h, \ sw tp,8(sp)
$c616 h, \ sw t0,12(sp)
$c81a h, \ sw t1,16(sp)

wolfmanjm

# -----------------------------------------------------------------------------
  Definition Flag_visible, "execute-coprocessor"
execute_coprocessor: # ( xt -- ) Entry point for the coprocessor trampoline
# -----------------------------------------------------------------------------

  # Store the execution token into a global variable
  li x14, trampolineaddr # Note we are using li here as we forcefully circumvent the linker facilities
  sw x8, 0(x14)
  drop

wolfmanjm

# -----------------------------------------------------------------------------
# Initialize register file
# li  x1, 0           # Return address register, holds link back and is also used to compose long calls with auipc and jalr
# laf x2, returnstackanfang # Set return stack pointer (sp)
# li  x3, 0           # Loop index
# li  x4, 0           # Loop limit
# li  x5, 0           # Scratch register, needs to be saved.
# li  x6, 0           # Scratch register, needs to be saved.
# li  x7, 0           # Scratch register, needs to be saved.

wolfmanjm

#! /usr/bin/python3
# this script will concatenate the file specified into the upload.fs
# it strips comments and handles #require
#

import argparse
import os
import re
import sys

wolfmanjm

File.foreach('RP2350.svd') do |line|
  if line.include?('<bitRange>')
    # Extract range from <bitRange>[31:0]</bitRange>
    range_match = line.match(/\[(\d+):(\d+)\]/)
    if range_match
      hr = range_match[1].to_i
      lr = range_match[2].to_i
      puts "<bitOffset>#{lr}</bitOffset>"
      puts "<bitWidth>#{(hr - lr) + 1}</bitWidth>"
    end

wolfmanjm

.section .text
.global _start

.equ SYSCTL_BASE,    0x40000000
.equ CLK_EN_REG,     SYSCTL_BASE + 0x100   # Clock enable register

.equ PAD_ISO_REG,    0x40038000 + 0x40   # Pad isolation control register for GPIO15

.equ IOMUX_BASE,     0x40028000
.equ IOMUX_GPIO15,   IOMUX_BASE + 0x7C     # IOMUX register for GPIO15

wolfmanjm

#! /usr/bin/python -u

import subprocess
import selectors
import os
import time
import readline
import sys
import atexit
import threading

wolfmanjm

[button box]
feeder0.pin    = PE8                  # button
feeder0.press  = echo -1 M700N0        # command to send
 
feeder1.pin    = PJ7                  # button
feeder1.press  = echo -1 M700N1        # command to send
 
feeder2.pin    = PJ8                  # button
feeder2.press  = echo -1 M700N2        # command to send
 

wolfmanjm

import matplotlib.pyplot as plt

x0=0           # First Position  (Start)
xd=100         # Second Position  (End)
T=100          # Time

x= [0] * 101
for t in range(0,101):
    x[t]= x0+(xd-x0)*(10*((t/T)**3)-15*((t/T)**4)+6*((t/T)**5))