1. [n. d.]. https://github.com/efeslab/hardware-bugbase [n. d.]. https://github.com/efeslab/hardware-bugbase
2. [n. d.]. https://zipcpu.com [n. d.]. https://zipcpu.com
3. [n. d.]. https://github.com/ZipCPU/sdspi [n. d.]. https://github.com/ZipCPU/sdspi
4. [n. d.]. https://zipcpu.com/formal/2018/12/28/axilite.html [n. d.]. https://zipcpu.com/formal/2018/12/28/axilite.html
5. [n. d.]. https://zipcpu.com/dsp/2020/04/20/axil2axis.html [n. d.]. https://zipcpu.com/dsp/2020/04/20/axil2axis.html