Books about CAS

[Nad]

Hello!

Yes thanks Eddie, and thank you Jonathan for the tips on implementing Bignum. I will need help to get started, but should be O.K. once I've implemented a few functions I'll report on how I'm going.

The prototype is up and running (from Dan's webpage, my set-up is the same):



11 GPIO pins are used by the display but only 16 GPIO pins could be found on the development board (even though the i.MX RT1010 mcu has 44 GPIO pins, according to the datasheet), leaving only 5 pins for the keypad (it needs 14). So an Arduino was used to scan the keypad and send the number of the key pressed to the mcu, which works nicely.

The 500 MHz Cortex-M7 core in the i.MX RT1010 is fast - the Mandelbrot set with 250 iterations per pixel is drawn in under 3 seconds - and the 480x320 display shows some nice detail:



A big challenge is to go from the prototype to a hand held version. There are a number of small form factor boards that could perhaps be used, such as the Teensy 4.0, which features an even more powerful member of the i.MX RT family running at 600 MHz.