Ned Konz / Mbed 2 deprecated Multi_WS2811_test

Test program for my Multi_WS2811 library that started out as a fork of heroic/WS2811. My library uses hardware DMA on the FRDM-KL25Z to drive up to 16 strings of WS2811 or WS2812 LEDs in parallel.

Dependencies:   Multi_WS2811 mbed MMA8451Q

Fork of WS2811 by Heroic Robotics

NOTE: I have accidentally pushed changes for another fork of this program that I used in the recent Georgetown Carnival Power Tool Races. When I get some time, I will restore the test program to its original glory.

You can see my power tool racer (Nevermore's Revenge) here

/media/uploads/bikeNomad/img_0482.jpg

This tests my FRDM-KL25Z multi-string WS2811/WS2812 library. It uses the accelerometer to change the rainbow phase on two strings of LEDs as well as the touch sense to change brightness.

A video of this program in operation is here.

Here is the library that I developed to run the LEDs:

Import libraryMulti_WS2811

Library allowing up to 16 strings of 60 WS2811 or WS2812 LEDs to be driven from a single FRDM-KL25Z board. Uses hardware DMA to do a full 800 KHz rate without much CPU burden.

Last commit 13 Jun 2015 by Ned Konz

Diff: bitband.h

Revision:
17:b4e9d8f4baa9
Parent:
16:5f75ea93f15d
Child:
18:d98353e8c61c
--- a/bitband.h	Thu Oct 10 21:52:59 2013 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,71 +0,0 @@
-//*****************************************************************************
-//   +--+
-//   | ++----+
-//   +-++    |
-//     |     |
-//   +-+--+  |
-//   | +--+--+
-//   +----+    Copyright (c) 2011 Code Red Technologies Ltd.
-//
-// Header file containing C macros to provide bitbanding on Cortex-M3 MCU's
-//
-// Software License Agreement
-//
-// The software is owned by Code Red Technologies and/or its suppliers, and is
-// protected under applicable copyright laws.  All rights are reserved.  Any
-// use in violation of the foregoing restrictions may subject the user to criminal
-// sanctions under applicable laws, as well as to civil liability for the breach
-// of the terms and conditions of this license.
-//
-// THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
-// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
-// USE OF THIS SOFTWARE FOR COMMERCIAL DEVELOPMENT AND/OR EDUCATION IS SUBJECT
-// TO A CURRENT END USER LICENSE AGREEMENT (COMMERCIAL OR EDUCATIONAL) WITH
-// CODE RED TECHNOLOGIES LTD.
-//
-//*****************************************************************************
-
-#ifndef BITBAND_H_
-#define BITBAND_H_
-
-/* The Cortex-M3 memory map includes two bit-band regions. These occupy the lowest
- * 1MB of the SRAM and peripheral memory regions respectively.
- * + SRAM:  Bit-band region:    0x20000000 - 0x20100000
- *          Bit-band alias:     0x22000000 - 0x23FFFFFF
- * + PERI:  Bit-band region:    0x40000000 - 0x40100000
- *          Bit-band alias:     0x42000000 - 0x43FFFFFF
- * The mapping formula:
- *      bit_word_offset = (byte_offset * 32) + (bit_number * 4)
- *      bit_word_address = bit_band_base + bit_word_offset
- * where:
- *  + bit_word_offset: the position of the target bit in the bit-band memory region
- *  + bit_word_addr: the address of the word in the alias memory region that maps to the target bit
- *  + bit_band_base: the starting address of the alias region
- *  + byte_offset: the number of byte in the bit-band region that contains the targeted bit
- *  + bit_number: is the bit position (0-7) of the targeted bit
- */
-
-/* Bit band SRAM definitions */
-#define BITBAND_SRAM_REF   0x20000000
-#define BITBAND_SRAM_BASE  0x22000000
-
-#define BITBAND_SRAM(a,b) ((BITBAND_SRAM_BASE + ((a-BITBAND_SRAM_REF)<<5) + (b<<2)))  // Convert SRAM address
-
-/* Bit band PERIPHERAL definitions */
-#define BITBAND_PERI_REF   0x40000000
-#define BITBAND_PERI_BASE  0x42000000
-
-#define BITBAND_PERI(a,b) ((BITBAND_PERI_BASE + ((a-BITBAND_PERI_REF)<<5) + (b<<2)))  // Convert PERI address
-
-/* Basic bit band function definitions */
-#define BITBAND_SRAM_ClearBit(a,b)  (*(volatile uint32_t *) (BITBAND_SRAM(a,b)) = 0)
-#define BITBAND_SRAM_SetBit(a,b)    (*(volatile uint32_t *) (BITBAND_SRAM(a,b)) = 1)
-#define BITBAND_SRAM_GetBit(a,b)    (*(volatile uint32_t *) (BITBAND_SRAM(a,b)))
-
-#define BITBAND_PERI_ClearBit(a,b)  (*(volatile uint32_t *) (BITBAND_PERI(a,b)) = 0)
-#define BITBAND_PERI_SetBit(a,b)    (*(volatile uint32_t *) (BITBAND_PERI(a,b)) = 1)
-#define BITBAND_PERI_GetBit(a,b)    (*(volatile uint32_t *) (BITBAND_PERI(a,b)))
-
-
-#endif /* BITBAND_H_ */