yahya tawil yahyatawil

Preserve variable value between software resets resets

in 'MEMORY' section:

MEMORY { ROMEM (rx) : ORIGIN = 0x0000C000, LENGTH = 976K RWMEM (rwx) : ORIGIN = 0x10000000, LENGTH = 383K NOINIT (rwx) :ORIGIN = 0x1005FC00, LENGTH = 1k }

iteration with index and members:

for i, member in enumerate(array):

slicing (RGB example)

Img_array[x:x+w,y:y+h,:]

show more than one image in opencv2 imshow

temp_img1 = cv2.hconcat([cell1,neighbour_cells[0]])

How to use Nativefier to create an desktop app

Download Node.js®. This is required for Nativefier to work.
Open the Node.js command prompt and install Nativefier. Copy & paste the following to install and press enter:

npm install nativefier -g

Create wrapper for Asana web app. Once Nativefier is installed, copy & paste the following into the Node.js command prompt and press enter:

Item #	Designator	Qty	Manufacturer	Mfg Part #	Description / Value	Package/Footprint	Type
1	C1, C2, C4, C5, C6, C7	6	KEMET	C0603C104K5RAC3121	CAP 100NF 50V	0603	SMD
2	C3, C8	2	Taiyo Yuden	TMK107BLD105KA-T	CAP 1UF 25V	0603	SMD
3	C9, C11	2	KEMET	C0603C220J5GAC3190	CAP 22PF 50V	0603	SMD
4	PC1, PC2	2	Panasonic

Unfortunately calculating function size is not as easy of finding variable size using sizeof() compile-time operator. There are numerous ways to calculate the size in run-time but to keep things simple, it’s better to check that information from linker, as for sure must knows it.

Let’s talk about what things we are going to use:

1- “.map” file generated by GCC/G++ linker:

This file has the symbols we have in the code/firmware either in flash, RAM or any other defined memory section. The following snippet is taken from compiling one of the examples of nRF52 SDK. If you want to try just run make default inside the following directory examples\peripheral\gpiote\pca10040\blank\armgcc. The first column is the symbol start address, the second column is the function size in HEX and the third one is the object file name containing that symbol.

.text.bsp_board_led_invert


	# adapted and modified:
	# https://gist.github.com/kodekracker/1777f35e8462b2b21846c14c0677f611

	import cv2
	import sys
	import os
	import xml.etree.ElementTree as ET

	imagePath = "C:/Users/DELL/Desktop/samples/bbox/MP_SEL_B027484.jpg"