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Matthijs Kooijman matthijskooijman

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matthijskooijman / gist:c2a33827ea47c97eb497c3665cf1a71e
Created March 12, 2019 20:45
diff -Nru grfcodec-6.0.6/debian/changelog grfcodec-6.0.6/debian/changelog
--- grfcodec-6.0.6/debian/changelog 2018-05-10 21:42:34.000000000 +0200
+++ grfcodec-6.0.6/debian/changelog 2019-03-12 21:36:07.000000000 +0100
@@ -1,3 +1,19 @@
+grfcodec (6.0.6-3) unstable; urgency=medium
+
+ [ Jordi Mallach ]
+ * [bc95db0] Force build to abort upon endian_check.cpp build failure.
+ Thanks to Helmut Grohne for suggesting this fix (Closes: #922625)
+ * [63c5aa0] Move M-A field to binary section.
@matthijskooijman
matthijskooijman / gist:d03a895f86b80ffc7314e36cb7aab69c
Created March 8, 2019 10:25
matthijs@grubby:/usr/lib/avr/include/avr$ grep END iom328p.h
#define RAMEND 0x8FF /* Last On-Chip SRAM Location */
#define XRAMEND RAMEND
#define E2END 0x3FF
#define FLASHEND 0x7FFF
@matthijskooijman
matthijskooijman / .avrduderc
Created October 13, 2018 09:57
# Pinout based on http://doswa.com/2010/08/24/avrdude-5-10-with-ftdi-bitbang.html
# I could not use the builtin ft232r and others, since these all need
# different handshaking pins
programmer
id = "ftdi_cts_dtr";
desc = "FTDI adapter with CTS and DTR exposed";
type = "ftdi_syncbb";
connection_type = usb;
miso = 1; # RXD
sck = 3; # CTS
@matthijskooijman
matthijskooijman / gist:89e3fd69aaf714466524eb93f7197260
Created August 29, 2018 14:55
Read AVR / Atmega2560 signature byte area; signature is at addresses 0, 2, 4, calibration byte is at address 1
#include <avr/boot.h>
void setup() {
Serial.begin(115200);
// put your setup code here, to run once:
for (uint8_t i = 0; i < 16; ++i) {
Serial.print(i);
Serial.print(": ");
Serial.println(boot_signature_byte_get(i), HEX);
}
@matthijskooijman
matthijskooijman / gist:3fb82196c5c4ac47d29ced071204f3bc
Created May 17, 2018 07:01
%YAML 1.1
---
# meetjestad.sensors_measurement
-
id: 2591299
station_id: 122
message_id: 2560602
timestamp: "2018-05-17 07:00:57"
latitude: 52.1712
longitude: 5.3945
@matthijskooijman
matthijskooijman / gist:0bb6ef88d086b7dd2e01f669f75699a1
Created April 30, 2018 13:16
ICU symbols used by OpenTTD 1.8.0 from ICU 60
0000000000000000 DF *UND* 0000000000000000 icu_60::ParagraphLayout::Line::getWidth() const
0000000000000000 DF *UND* 0000000000000000 icu_60::BreakIterator::createCharacterInstance(icu_60::Locale const&, UErrorCode&)
0000000000000000 DF *UND* 0000000000000000 icu_60::LEFontInstance::unitsToPoints(LEPoint&, LEPoint&) const
0000000000000000 DF *UND* 0000000000000000 icu_60::LEFontInstance::~LEFontInstance()
0000000000000000 DF *UND* 0000000000000000 icu_60::Locale::~Locale()
0000000000000000 DF *UND* 0000000000000000 icu_60::LEFontInstance::yPixelsToUnits(float) const
0000000000000000 DF *UND* 0000000000000000 icu_60::Collator::createInstance(icu_60::Locale const&, UErrorCode&)
0000000000000000 DF *UND* 0000000000000000 icu_60::UMemory::operator new(unsigned long)
0000000000000000 DF *UND* 0000000000000000 icu_60::StringPiece::StringPiece(char const*)
@matthijskooijman
matthijskooijman / foo.asm
Created February 9, 2018 21:52
// This approach is the simplest and does not fix the rounding issue, so
// this OK/-1/-2/-3 pattern repeats over and over (all delays are
// rounded down to a multiple of 3)
delayMicroseconds(0): ERR: 5 cycles == 5.00us
delayMicroseconds(1): ERR: 4 cycles == 4.00us
delayMicroseconds(2): ERR: 3 cycles == 3.00us
delayMicroseconds(3): ERR: 2 cycles == 2.00us
delayMicroseconds(4): ERR: 1 cycles == 1.00us
delayMicroseconds(5): OK
delayMicroseconds(6): ERR: -1 cycles == -1.00us
@matthijskooijman
matthijskooijman / 00Results
Created February 8, 2018 11:57
delayMicroseconds test - Paul's implementation
>> Constants @16Mhz
delayMicroseconds(0): OK
delayMicroseconds(1): OK
delayMicroseconds(2): OK
delayMicroseconds(3): OK
delayMicroseconds(4): OK
delayMicroseconds(5): OK
delayMicroseconds(6): OK
delayMicroseconds(7): OK
delayMicroseconds(8): OK
@matthijskooijman
matthijskooijman / 00Results
Last active February 8, 2018 11:41
delayMicroseconds test - original implementation
>> Constants @24Mhz
delayMicroseconds(0): OK
delayMicroseconds(1): ERR: -17 cycles == -0.71us
delayMicroseconds(2): ERR: -17 cycles == -0.71us
delayMicroseconds(3): ERR: -17 cycles == -0.71us
delayMicroseconds(4): ERR: -18 cycles == -0.75us
delayMicroseconds(5): ERR: -17 cycles == -0.71us
delayMicroseconds(6): ERR: -19 cycles == -0.79us
delayMicroseconds(7): ERR: -17 cycles == -0.71us
delayMicroseconds(8): ERR: -19 cycles == -0.79us
@matthijskooijman
matthijskooijman / gist:eb74d771a36a1beae567348441c85724
Created June 21, 2017 16:17
From gateway traffic:
{
"gw_id": "eui-0000024b080e020a",
"payload": "ALoDANB+1bNwOQAAAAAAAAD5CgxrOqk=",
"dev_eui": "0000000000000039",
"lora": {
"spreading_factor": 7,
"bandwidth": 125,
"air_time": 61696000
},