RickKimball

/*
 * main.cpp - msp430-elf-gcc ws281x USCI SPI driver using inline asm
 *
 *  Author: kimballr
 *  Date: Dec 28, 2012
 *  Version: 0.0002
 *
 * 2014-09-29 rrk - updated for both msp430-elf-gcc and msp430-gcc
 * P1.0 - CS - N/A not used, however it is still useful as an oscilloscope trigger
 * P1.7 - MOSI -> WS281x DIN

RickKimball

#-----------------------------------------
# NXP lpc1114fn23 Cortex-M0 32k flash, 4k ram

set CHIPNAME lpc1114
set CPUTAPID 0x0BB11477
set CPUROMSIZE 0x8000
set CPURAMSIZE 0x1000

# After reset the chip is clocked by the ~12MHz internal RC oscillator.
# When board-specific code (reset-init handler or device firmware)

RickKimball

#!/bin/bash
#-------------------------------------------------------------------------
# Desc: msp430-stdlst - generate standard asm listings, mixed c++/asm and
#       instruction cycle counts. This code assumes nake430util is in
#       your PATH.
#
# Created: June 12, 2012
#  Author: rick@kimballsoftware.com
#    Date: 03-03-2012
# Version: 1.0.1

RickKimball

/*
 * 50baud.c - example of sending 50 baud async serial output on P1.1
 *            code uses timer sourced from VLO and sleeps between reports.
 *
 *  P1.0 - optionally output ACLK for measurement of VLO
 *  P1.1 - 50 baud async serial output
 *  P1.6 - indicator led, on during serial transmission
 *
 *  TIMER0    - continuous up mode sourced with ACLK (VLO)
 *  TIMER0_A0 - 50 baud ISR enabled and disable for 8-N-1 transmission

RickKimball

@-------------------------------------------------------------------------------
@ ws2811_utils.S - write pixel data to ws2811 leds
@-------------------------------------------------------------------------------
@
@ lpc810 cortex-m0+ ARM ASM routine for streaming pixels data
@
@ assumes interrupts are disabled when called
@ assumes 24MHz system clock, flash wait state set to 0
@ assumes P0_2 configured as OUTPUT connected to ws2811 DIN pin
@

RickKimball

/**
 * signedtest.c - this fails to output int8_t values properly when optimized with -Os
 *
 * Compiled like this:
 *
 * $ msp430-gcc -mmcu=msp430g2553 -DF_CPU=16000000 -Os -Wall \
 *   -Wno-main -g -mdisable-watchdog -fdata-sections -ffunction-sections \
 *   -Wl,--gc-sections signedtest.c
 *
 * $ mspdebug rf2500 "prog a.out"

RickKimball

/*
 * aciitable - example of using the blocking sw_serial_t template
 */
#include "streaming.h" /* pull in insertion operator overloads */
#include "sw_serial.h"

// typedefs for software only rx/tx using software pin settings * J3 default jumper settings
// this is a good setting for the g2452 and g2231
sw_serial_t<9600, SS_P1_2, SS_NO_PIN> swserial; // HW jumper version TX=P1.2, RX=NOT CONNECTED

RickKimball

/*
 *  lp_logo - nokia 5110 style bitmap
 *
 *  Generated by xbmto5110 on Feb  3 2013 14:19:20
 *  Note: visualize the '1' and '0's rotated 90 degrees counterclockwise
 */
static const unsigned char lp_logo[] = {
  /* width, height/8 */
  56,48/8,

RickKimball

uint32_t max31855::memory_read(void)
{
    uint32_t mask = 0x80000000;
    uint32_t data = 0;

    digitalWrite(_cs,LOW);
    do {
        digitalWrite(_sclk, HIGH);
        if (digitalRead(_so)) {
            data |= mask;

RickKimball

$ diff linux/work/hardware/lm4f/cores/lm4f/startup_gcc.c ../hardware/lm4f/cores/lm4f/startup_gcc.c 
71d70
< __attribute__((weak)) extern void Timer0IntHandler(void) {}
123c122
<     Timer0IntHandler,                      // Timer 0 subtimer A
---
>     IntDefaultHandler,                      // Timer 0 subtimer A
$