empro update

docs/Embedded Programming.md

@@ -14,7 +14,7 @@ This week is about learning how to program a microcontroller.
 
 1. Understanding a Datasheet  
 ---
-For Electronics Design, I modified the hello.ftdi.44 board by adding a pushbutton and an led. This board uses the Attiny44A, so I chose the same datasheet to understand it better.
+For Electronics Design, I [modified the hello.ftdi.44 board](./Electronics Design.md) by adding a pushbutton and an led. This board uses the Attiny44A, so I chose the same datasheet to understand it better.
 
 The datasheet is available on the Atmel site. The document contains the main features of the MCU, the pinout diagram, architecture overview, register summary, assembly instruction set and packaging information, and describes the microcontroller features in detail.  
 
@@ -44,7 +44,27 @@ The first three chapters - pin configurations, overview and general information,
 
 2. Comparing the performance and development workflows for different microcontroller families
 ---
-Next task is to program the board you have made to do something, with as many different programming languages and programming environments as possible.
+Next task is to program the board you have made to do something, with as many different programming languages and programming environments as possible.  
+
+Some different architectures:  
+1. CPU architecture - [t44 series](https://www.microchip.com/en-us/product/ATTINY44) uses ISP programmer, t412 series uses UPDI programmer / serial pyupdi.py  
+2. [SAMD11 series](https://www.microchip.com/en-us/product/ATSAMD11C14) uses JTAG programmer with ARM core / USB  
+3. [ESP8266 series + ESP32](https://www.espressif.com/en/products/socs) series use Tensilica 32-bit  
+4. BBC microbit - ARM core / serial FTDI/USB  
+5. Raspberry Pi - broadcom system / serial USB
+Pi Pico - ARM  
+
+Here is how a development workflow generally is:  
+![](./images/empro/workflow.jpg)  
+
+Comparing basic features of different microcontrollers:  
+![](./images/empro/comparing1.jpg)  
+
+This helps while selecting the appropriate MCU for particular tasks depending on the features, communication protocols, inputs and outputs.   
+
+Different environments possible for an attiny88/84:  
+![](./images/empro/comparing2.jpg)  
+In the next sections I will use different workflows for programming the hello board based on t44 I made in [Electronics Design week](./Electronics Design.md).   
 
 3. Programming with FabISP + Arduino IDE  
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@@ -141,7 +161,7 @@ Also, the pin numbers are recognised by their ports PB# instead of pin #.
 
 5. Programming with Atmel Studio
 ---
-can't in mac. will do this later on a windows system...   
+Can't in mac. will do this later on a windows system...   
 
 
 5. References