diff --git a/content/blog/hikmicrothermal/index.md b/content/blog/hikmicrothermal/index.md index e69de29..9a60a76 100644 --- a/content/blog/hikmicrothermal/index.md +++ b/content/blog/hikmicrothermal/index.md @@ -0,0 +1,9 @@ +--- +title: Hacking Hikmicro part 1 +description: Reverse engineering the Hikmicro Pocket C to understand the image format +--- + +I recently picked up a Hikmicro Pocket C thermal imager, since +my old Seek Thermal was becoming too annoying to use. The Pocket +C is a standalone device with a much better sensor. It supports +radiometric images as well as radiometric video and USB radio. diff --git a/content/blog/yosys4gal/yosys4gal.md b/content/blog/yosys4gal/yosys4gal.md index 193ede0..e99ac4f 100644 --- a/content/blog/yosys4gal/yosys4gal.md +++ b/content/blog/yosys4gal/yosys4gal.md @@ -6,10 +6,10 @@ date: 2024-06-14 ## A history lesson -During the semiconductor revolution, a dilemma appeared: Designing new ICs +During the semiconductor revolution, a dilemma appeared: Designing new integrated circuits required a lot of time and effort to create the mask, and iteration -expensive. Due to limited compute capability, ICs could not be complex designs. -tools/compute to do tasks like optimization or place-and-route were limited. +expensive. Due to limited tooling, ICs could not be complex designs. +Techniques and tools to do tasks like optimization or place-and-route did not exist or were primitive. And what if you wanted a low-volume design? Programmable Logic Arrays (PLAs) were an early approach to these problems. The idea was simple: create a flexible logic architecture that could be modified later in the process to @@ -40,7 +40,7 @@ electronically-erasable, 22-pin programmable logic block, which had up to 10 outputs that are registered and used for feedback. These outputs can be tri-stated to give greater flexibility. -![A figure shows the Output Logic Macrocell, or OLMC. The OLMC consists of a D Flip-Flop, feedback routing, and 4-to-1 mux to select behavior](gal_olmc.png) +![A figure shows the Output Logic Macro-cell, or OLMC. The OLMC consists of a D Flip-Flop, feedback routing, and 4-to-1 mux to select behavior](gal_olmc.png) ## Back To Today: GALs in the 21st Century @@ -63,7 +63,7 @@ GALs operate at 5 volts is useful when interfacing with older systems and removes the need for a level shifter. -However, this isn't all great. Programming GALs is an exercise in frustration. +In practice, this isn't all great. Programming GALs is an exercise in frustration. Take a look at a basic combinatorial assembly file: ```PALASM @@ -113,7 +113,7 @@ Not particularly. Well, there is a niche use case. These parts are 5-volt tolerant, and come in DIP packages. If you needed some basic glue logic when working on an older 5 volt system, you might want to have a few of these and a programmer -instead of a collection of 74-series logic. At the very least, these chips can +instead of a collection of 74-series logic. These chips can emulate any 74-series chip, and can reduce a multi-chip design to a single chip. The DIP form factor makes it much easier to breadboard, and the chips have zero start up delay. diff --git a/content/decks/decks.11tydata.js b/content/decks/decks.11tydata.js index dc24abe..7c8932a 100644 --- a/content/decks/decks.11tydata.js +++ b/content/decks/decks.11tydata.js @@ -1,6 +1,5 @@ export default { tags: [ - "posts" ], "layout": "layouts/deck.njk", };