@ -0,0 +1,16 @@ | |||
//#include <xc.h> | |||
#include <avr/io.h> | |||
#include <util/delay.h> | |||
int main(void) | |||
{ | |||
// PB2 output | |||
DDRB = 1<<2; | |||
while(1) | |||
{ | |||
// Toggle PB2 | |||
PINB = 1<<2; | |||
_delay_ms(500); | |||
} | |||
} |
@ -0,0 +1,7 @@ | |||
:100000000AC020C01FC01EC01DC01CC01BC01AC01B | |||
:1000100019C018C017C011271FBFCFE5D0E0DEBF41 | |||
:0A002000CDBF03D000C0F894FFCF5D | |||
:10002A0044E041B940B95FE966E871E05150604087 | |||
:0A003A007040E1F700C00000F5CFB0 | |||
:02004400DDCF0E | |||
:00000001FF |
@ -0,0 +1,132 @@ | |||
\documentclass[11pt]{article} | |||
%Gummi|065|=) | |||
\usepackage{graphicx} | |||
\usepackage{caption} | |||
\usepackage{xcolor} | |||
\usepackage[vcentering,dvips]{geometry} | |||
\geometry{papersize={6in,9in},total={4.5in,6.8in}} | |||
%\title{\textbf{Door Alarm}} | |||
\author{Steak Electronics} | |||
\date{} | |||
\begin{document} | |||
%\maketitle | |||
%\tableofcontents | |||
\textcolor{green!60!blue!70}{ | |||
\section{Attiny Solar Energy Harvest Tests}} | |||
I have the following: | |||
\begin{itemize} | |||
\item Solar panels | |||
\item Attiny 10 | |||
\end{itemize} | |||
To this list, I will add a supercap, and an energy harvesting IC. The goal being to load the super cap during the day, and to run 24/7. I will need an exceptionally low power micro. The super cap will need to be about 3.3V or 5V. | |||
\textcolor{green!60!blue!70}{ | |||
\subsection{Micro Considerations}} | |||
The Arduino Atmega328P is not an option. I'm looking to have a current draw of only 1mA max, (ideally 500uA) when active. Moteino is also not an option for this. Those are made for batteries. I want to be battery free. A super cap, however can be used to store energy. I'll get to that shortly. | |||
For micros, I have some Attiny10 on hand, and these have a reasonably low power pull in active mode. Let's build those up first. What will the micro do? No idea. I haven't a clue. | |||
\textcolor{green!60!blue!70}{ | |||
\subsubsection{Micro Notes}} | |||
Must run at 1.8V / 1MHz per front page of data sheet, for 200uA draw in active mode. | |||
\\ | |||
\\ | |||
\textcolor{green!60!blue!70}{ | |||
\subsection{Energy Storage}} | |||
I don't want a battery. Let's go with a super cap. The solar panels will only be active some of the time, so I will want to harvest energy with some kind of IC into the cap when the sun is out.\footnote{Reference: www.analog.com/media/en/technical-documentation/technical-articles/solarenergyharvesting.pdf is a start. I'll need to do more research.} | |||
\textcolor{green!60!blue!70}{ \subsection{Make parts, not scrap}} I will | |||
want to make sure that all parts I build are perf board parts, not | |||
breadboard scrap (to be torn down and rebuilt again). This is an Attiny, | |||
so no need to test much, yet. | |||
\textcolor{green!60!blue!70}{ \subsubsection{Testing Arduino Loader}} | |||
Tested this with the blink_LED.c in code folder. The code is as simple as possible. | |||
It is the following: | |||
\begin{verbatim} | |||
//#include <xc.h> | |||
#include <avr/io.h> | |||
#include <util/delay.h> | |||
int main(void) | |||
{ | |||
// PB2 output | |||
DDRB = 1<<2; | |||
while(1) | |||
{ | |||
// Toggle PB2 | |||
PINB = 1<<2; | |||
_delay_ms(500); | |||
} | |||
} | |||
\end{verbatim} | |||
When programmed in Mplab, with XC8 compiler, and Attiny10 support, I get the following | |||
hex output: | |||
\begin{verbatim} | |||
:100000000AC020C01FC01EC01DC01CC01BC01AC01B | |||
:1000100019C018C017C011271FBFCFE5D0E0DEBF41 | |||
:0A002000CDBF03D000C0F894FFCF5D | |||
:10002A0044E041B940B95FE966E871E05150604087 | |||
:0A003A007040E1F700C00000F5CFB0 | |||
:02004400DDCF0E | |||
:00000001FF | |||
\end{verbatim} | |||
The content of this hex isn't the focus of this passage. Instead, I want you to review the | |||
results of a D for Dump Memory, by the Arduino Loader. | |||
\begin{verbatim} | |||
Current memory state: | |||
registers, SRAM | |||
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F | |||
0000: 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 | |||
0010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 | |||
0020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 | |||
0030: 00 00 00 00 00 00 03 00 00 79 00 03 00 00 00 00 | |||
0040: B7 AD AE FA 58 70 63 6B FB 5A B4 1B FF FF 35 3F | |||
0050: 67 D7 33 43 DF 5F FB 72 C9 7D FE E9 9D C5 00 12 | |||
NVM lock | |||
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F | |||
3F00: FF FF | |||
configuration | |||
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F | |||
3F40: FF FF | |||
calibration | |||
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F | |||
3F80: 79 FF | |||
device ID | |||
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F | |||
3FC0: 1E 90 03 FF | |||
program | |||
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F | |||
4000: 0A C0 20 C0 1F C0 1E C0 1D C0 1C C0 1B C0 1A C0 | |||
4010: 19 C0 18 C0 17 C0 11 27 1F BF CF E5 D0 E0 DE BF | |||
4020: CD BF 03 D0 00 C0 F8 94 FF CF 44 E0 41 B9 40 B9 | |||
4030: 5F E9 66 E8 71 E0 51 50 60 40 70 40 E1 F7 00 C0 | |||
4040: 00 00 F5 CF DD CF FF FF FF FF FF FF FF FF FF FF | |||
4050: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF | |||
4060: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF | |||
(...some memory omitted here for brevity...) | |||
43E0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF | |||
43F0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF | |||
\end{verbatim} | |||
Notice that the AC020C01F is set. That is from the hex. But the 01000... | |||
before it seems to be missing. Some deciphering of how the Arduino programs | |||
the Attiny is in order here. | |||
Regardless, when programming, the Arduino reports 70 bytes written, and | |||
likewise in the Mplab project memorymap.xml file, it also notes 70 bytes | |||
for the sketch. This lines up.\footnote{Although for an unknown reason, every command registers twice on the Arduino serial monitor, but this appears to be harmless.} | |||
The blinking LED works. Let's move on. | |||
\end{document} | |||
@ -0,0 +1,136 @@ | |||
\documentclass[11pt]{article} | |||
%Gummi|065|=) | |||
\usepackage{graphicx} | |||
\usepackage{caption} | |||
\usepackage{xcolor} | |||
\usepackage[vcentering,dvips]{geometry} | |||
\geometry{papersize={6in,9in},total={4.5in,6.8in}} | |||
%\title{\textbf{Door Alarm}} | |||
\author{Steak Electronics} | |||
\date{} | |||
\begin{document} | |||
%\maketitle | |||
%\tableofcontents | |||
\textcolor{green!60!blue!70}{ | |||
\section{Attiny Solar Energy Harvest Tests}} | |||
I have the following: | |||
\begin{itemize} | |||
\item Solar panels | |||
\item Attiny 10 | |||
\end{itemize} | |||
To this list, I will add a supercap, and an energy harvesting IC. The goal being to load the super cap during the day, and to run 24/7. I will need an exceptionally low power micro. The super cap will need to be about 3.3V or 5V. | |||
\textcolor{green!60!blue!70}{ | |||
\subsection{Micro Considerations}} | |||
The Arduino Atmega328P is not an option. I'm looking to have a current draw of only 1mA max, (ideally 500uA) when active. Moteino is also not an option for this. Those are made for batteries. I want to be battery free. A super cap, however can be used to store energy. I'll get to that shortly. | |||
For micros, I have some Attiny10 on hand, and these have a reasonably low power pull in active mode. Let's build those up first. What will the micro do? No idea. I haven't a clue. | |||
\textcolor{green!60!blue!70}{ | |||
\subsubsection{Micro Notes}} | |||
Must run at 1.8V / 1MHz per front page of data sheet, for 200uA draw in active mode. | |||
\\ | |||
\\ | |||
\textcolor{green!60!blue!70}{ | |||
\subsection{Energy Storage}} | |||
I don't want a battery. Let's go with a super cap. The solar panels will only be active some of the time, so I will want to harvest energy with some kind of IC into the cap when the sun is out.\footnote{Reference: www.analog.com/media/en/technical-documentation/technical-articles/solarenergyharvesting.pdf is a start. I'll need to do more research.} | |||
\textcolor{green!60!blue!70}{ \subsection{Make parts, not scrap}} I will | |||
want to make sure that all parts I build are perf board parts, not | |||
breadboard scrap (to be torn down and rebuilt again). This is an Attiny, | |||
so no need to test much, yet. | |||
\textcolor{green!60!blue!70}{ \subsubsection{Testing Arduino Loader}} | |||
Tested this with the blink_LED.c in code folder. The code is as simple as possible. | |||
It is the following: | |||
\begin{verbatim} | |||
//#include <xc.h> | |||
#include <avr/io.h> | |||
#include <util/delay.h> | |||
int main(void) | |||
{ | |||
// PB2 output | |||
DDRB = 1<<2; | |||
while(1) | |||
{ | |||
// Toggle PB2 | |||
PINB = 1<<2; | |||
_delay_ms(500); | |||
} | |||
} | |||
\end{verbatim} | |||
When programmed in Mplab, with XC8 compiler, and Attiny10 support, I get the following | |||
hex output: | |||
\begin{verbatim} | |||
:100000000AC020C01FC01EC01DC01CC01BC01AC01B | |||
:1000100019C018C017C011271FBFCFE5D0E0DEBF41 | |||
:0A002000CDBF03D000C0F894FFCF5D | |||
:10002A0044E041B940B95FE966E871E05150604087 | |||
:0A003A007040E1F700C00000F5CFB0 | |||
:02004400DDCF0E | |||
:00000001FF | |||
\end{verbatim} | |||
The content of this hex isn't the focus of this passage. Instead, I want you to review the | |||
results of a D for Dump Memory, by the Arduino Loader. | |||
\begin{verbatim} | |||
Current memory state: | |||
registers, SRAM | |||
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F | |||
0000: 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 | |||
0010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 | |||
0020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 | |||
0030: 00 00 00 00 00 00 03 00 00 79 00 03 00 00 00 00 | |||
0040: B7 AD AE FA 58 70 63 6B FB 5A B4 1B FF FF 35 3F | |||
0050: 67 D7 33 43 DF 5F FB 72 C9 7D FE E9 9D C5 00 12 | |||
NVM lock | |||
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F | |||
3F00: FF FF | |||
configuration | |||
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F | |||
3F40: FF FF | |||
calibration | |||
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F | |||
3F80: 79 FF | |||
device ID | |||
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F | |||
3FC0: 1E 90 03 FF | |||
program | |||
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F | |||
4000: 0A C0 20 C0 1F C0 1E C0 1D C0 1C C0 1B C0 1A C0 | |||
4010: 19 C0 18 C0 17 C0 11 27 1F BF CF E5 D0 E0 DE BF | |||
4020: CD BF 03 D0 00 C0 F8 94 FF CF 44 E0 41 B9 40 B9 | |||
4030: 5F E9 66 E8 71 E0 51 50 60 40 70 40 E1 F7 00 C0 | |||
4040: 00 00 F5 CF DD CF FF FF FF FF FF FF FF FF FF FF | |||
4050: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF | |||
4060: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF | |||
(...some memory omitted here for brevity...) | |||
43E0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF | |||
43F0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF | |||
\end{verbatim} | |||
Notice that the "AC020C01F" is set. That is from the hex. But the 01000... | |||
before it seems to be missing. Some deciphering of how the Arduino programs | |||
the Attiny is in order here. It also doesn't end the same. | |||
Regardless, when programming, the Arduino reports 70 bytes written, and | |||
likewise in the Mplab project memorymap.xml file, it also notes 70 bytes | |||
for the sketch. This lines up.\footnote{Although for an unknown reason, every command registers twice on the Arduino serial monitor, but this appears to be harmless.} | |||
The blinking LED works. Let's move on. | |||
\end{document} | |||
@ -0,0 +1 @@ | |||
Subproject commit 6984ab3a58891a9cab366aeeaa017498cbb0d2f2 |