No new information on the ADC feature request on Espressif”s forums.
I have started layout of the SSD1332 Breakout PCB. I finished the layout and ordered PCBs from OSHPark. Based on the datasheet for the SSD1332, I can get significantly better performance by using it in one of the 8 bit bus modes. Someone suggested that I look at STM32 processors to drive the display with. I will be considering that option this week.
I went to YouTube this week to learn a little bit about Test Driven Development(TDD). I watched one video about the process of TDD and a video about refactoring code. I don’t have enough experience to know if these videos are worth recommending, So, I am not posting links to them at this time. I can see how these design concepts help to make code better and more reliable. I am now looking for software development tools that help in doing unit tests and refactoring.
Do you have any recommendations for such software that runs on Linux, and/or works with GCC? I know Eclipse has some refactoring tools built in, do you know of any tutorials that teach those features on Eclipse?
The need for resistors on the level shifter is requiring a re-design. I am thinking about removing the SPI RAM from the design. I would like to see how much throughput I can get if I dump packets out on the SPI. With high throughput, maybe I won’t need the extra RAM. This would reduce costs and simplify the design.
I am also considering changing the voltage boost circuit to use a switching controller and using the Sigma Delta to control the feedback to the controller. This will take some experimentation to see if it will work. I could turn off the modem to use the ADC accurately to set the Vpp Voltage and then re-enable the modem and restore the connection to the WiFi access point. This would mean that setting the Vpp and measuring Target voltage would require a temporary disconnect, but could be done accurately.
Do you know of any good tutorials for unit testing? Especially for embedded systems?