I'm trying to run a string of WS2811 LEDs from a Pi0W. I've installed Adafruit's neopixel library but I've hit an issue that's got me stuck.
having completed the install instructions I have run strandtest.py but got the following error:
Code: Select all
Traceback (most recent call last):
File "strandtest.py", line 83, in <module>
strip.begin()
File "build/bdist.linux-armv61/egg/neopixel.py", line 115, in begin
RuntimeError: ws2811_init failed with code -3 (Hardware revision is not supported)Code: Select all
{
.hwver = 0x9000c1,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Pi Zero W v1.1",
},Code: Select all
/*
* rpihw.c
*
* Copyright (c) 2014 Jeremy Garff <jer @ jers.net>
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted
* provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
* 3. Neither the name of the owner nor the names of its contributors may be used to endorse
* or promote products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include "rpihw.h"
#define LINE_WIDTH_MAX 80
#define HW_VER_STRING "Revision"
#define PERIPH_BASE_RPI 0x20000000
#define PERIPH_BASE_RPI2 0x3f000000
#define VIDEOCORE_BASE_RPI 0x40000000
#define VIDEOCORE_BASE_RPI2 0xc0000000
#define RPI_MANUFACTURER_MASK (0xf << 16)
#define RPI_WARRANTY_MASK (0x3 << 24)
static const rpi_hw_t rpi_hw_info[] = {
//
// Model B Rev 1.0
//
{
.hwver = 0x02,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model B",
},
{
.hwver = 0x03,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model B",
},
//
// Model B Rev 2.0
//
{
.hwver = 0x04,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model B",
},
{
.hwver = 0x05,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model B",
},
{
.hwver = 0x06,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model B",
},
//
// Model A
//
{
.hwver = 0x07,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model A",
},
{
.hwver = 0x08,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model A",
},
{
.hwver = 0x09,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model A",
},
//
// Model B
//
{
.hwver = 0x0d,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model B",
},
{
.hwver = 0x0e,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model B",
},
{
.hwver = 0x0f,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model B",
},
//
// Model B+
//
{
.hwver = 0x10,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model B+",
},
{
.hwver = 0x13,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model B+",
},
{
.hwver = 0x900032,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model B+",
},
//
// Compute Module
//
{
.hwver = 0x11,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Compute Module",
},
{
.hwver = 0x14,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Compute Module",
},
//
// Pi Zero
//
{
.hwver = 0x900092,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Pi Zero v1.1",
},
{
.hwver = 0x900093,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Pi Zero v1.2",
},
{
.hwver = 0x920093,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Pi Zero v1.3",
},
{
.hwver = 0x9000c1,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Pi Zero W v1.1",
},
//
// Model A+
//
{
.hwver = 0x12,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model A+",
},
{
.hwver = 0x15,
.type = RPI_HWVER_TYPE_PI1,
.periph_base = PERIPH_BASE_RPI,
.videocore_base = VIDEOCORE_BASE_RPI,
.desc = "Model A+",
},
//
// Pi 2 Model B
//
{
.hwver = 0xa01041,
.type = RPI_HWVER_TYPE_PI2,
.periph_base = PERIPH_BASE_RPI2,
.videocore_base = VIDEOCORE_BASE_RPI2,
.desc = "Pi 2",
},
{
.hwver = 0xa01040,
.type = RPI_HWVER_TYPE_PI2,
.periph_base = PERIPH_BASE_RPI2,
.videocore_base = VIDEOCORE_BASE_RPI2,
.desc = "Pi 2",
},
{
.hwver = 0xa21041,
.type = RPI_HWVER_TYPE_PI2,
.periph_base = PERIPH_BASE_RPI2,
.videocore_base = VIDEOCORE_BASE_RPI2,
.desc = "Pi 2",
},
//
// Pi 2 with BCM2837
//
{
.hwver = 0xa22042,
.type = RPI_HWVER_TYPE_PI2,
.periph_base = PERIPH_BASE_RPI2,
.videocore_base = VIDEOCORE_BASE_RPI2,
.desc = "Pi 2",
},
//
// Pi 3 Model B
//
{
.hwver = 0xa02082,
.type = RPI_HWVER_TYPE_PI2,
.periph_base = PERIPH_BASE_RPI2,
.videocore_base = VIDEOCORE_BASE_RPI2,
.desc = "Pi 3",
},
{
.hwver = 0xa22082,
.type = RPI_HWVER_TYPE_PI2,
.periph_base = PERIPH_BASE_RPI2,
.videocore_base = VIDEOCORE_BASE_RPI2,
.desc = "Pi 3",
},
//
// Pi Compute Module 3
//
{
.hwver = 0xa020a0,
.type = RPI_HWVER_TYPE_PI2,
.periph_base = PERIPH_BASE_RPI2,
.videocore_base = VIDEOCORE_BASE_RPI2,
.desc = "Pi 3",
},
};
const rpi_hw_t *rpi_hw_detect(void)
{
FILE *f = fopen("/proc/cpuinfo", "r");
char line[LINE_WIDTH_MAX];
const rpi_hw_t *result = NULL;
if (!f)
{
return NULL;
}
while (fgets(line, LINE_WIDTH_MAX - 1, f))
{
if (strstr(line, HW_VER_STRING))
{
uint32_t rev;
char *substr;
unsigned i;
substr = strstr(line, ": ");
if (!substr)
{
continue;
}
errno = 0;
rev = strtoul(&substr[1], NULL, 16); // Base 16
if (errno)
{
continue;
}
for (i = 0; i < (sizeof(rpi_hw_info) / sizeof(rpi_hw_info[0])); i++)
{
uint32_t hwver = rpi_hw_info[i].hwver;
// Take out warranty and manufacturer bits
hwver &= ~(RPI_WARRANTY_MASK | RPI_MANUFACTURER_MASK);
rev &= ~(RPI_WARRANTY_MASK | RPI_MANUFACTURER_MASK);
if (rev == hwver)
{
result = &rpi_hw_info[i];
goto done;
}
}
}
}
done:
fclose(f);
return result;
}