Tom Vijlbrief tomtor

Interested in controllers/CPUs (ESP,ARM,AVR,PowerPC/Risc-V), FPGAs (Verilog, Yosys, Xilinx Vivado) and many OS-projects

tomtor / stm32_sleep.ino

Last active December 4, 2023 10:53

stm32 low power sleep code

	#include <libmaple/pwr.h>
	#include <libmaple/scb.h>

	#include <RTClock.h>

	// Define the Base address of the RTC registers (battery backed up CMOS Ram), so we can use them for config of touch screen or whatever.
	// See http://stm32duino.com/viewtopic.php?f=15&t=132&hilit=rtc&start=40 for a more details about the RTC NVRam
	// 10x 16 bit registers are available on the STM32F103CXXX more on the higher density device.
	#define BKP_REG_BASE ((uint32_t *)(0x40006C00 + 0x04))

tomtor / epsg28992.sql

Last active June 17, 2016 13:28

	----------------------------------------------------------------------------
	-- CRS conversion functions for GeoJSON coordinates and lat/long pairs
	-- in PostgreSQL/PostGIS:
	--
	-- from (Google) Web Mercator (OpenLayers:900913, EPSG:3785 and EPSG:3857 (prefered))
	-- and WGS-84 Lat (y) Long (x) (EPSG:4326)
	--
	-- to EPSG:28992 (RD new)
	--
	-- Needs the PostGIS extension (surprise ;-)

tomtor / json-func.sql

Created June 17, 2016 07:05

	-- See
	-- http://stackoverflow.com/questions/18209625/how-do-i-modify-fields-inside-the-new-postgresql-json-datatype
	-- All credits to the original author
	---------------------------------------------------------------------------------------------------------------

	CREATE OR REPLACE FUNCTION "json_object_set_key"(
	"json" json,
	"key_to_set" TEXT,
	"value_to_set" anyelement
	)

tomtor / MendixWidgetWrapper.html

Created May 26, 2016 15:57

A simple Wrapper for Mendix Widgets

	<html>
	<head>
	<script src="../lib/jquery-1-11-3.js"></script>
	</head>
	<body>
	<script>
	function declare_f(w, a, p) {
	p.domNode= $('body')[0];
	p._contextObj= { set: function(k,v) { console.log(v); }};

tomtor / rdtape.c

Created March 19, 2016 22:40

Convert SIMH simulator tapes to normal files

	#include <stdio.h>
	#include <string.h>
	#include <stdlib.h>

	/*
	* Convert SIMH simulator tapes to normal files
	*
	* Copyright 2016 Tom Vijlbrief
	*
	* tvijlbrief at gmail dot com