Replacement for regular GPIO (DigitalIn, DigitalOut, DigitalInOut) classes which has superior speed.

Dependents:   Eavesdropper BitstreamGenerator SimpleDecimationFilter 11U68_MP3Player with TFTLCD ... more

Added support for STM32L1xx

Hi, I added support for boards listed here (http://www.st.com/content/ccc/resource/technical/document/reference_manual/cc/f9/93/b2/f0/82/42/57/CD00240193.pdf/files/CD00240193.pdf/jcr:content/translations/en.CD00240193.pdf) that is mostly STM32L1xx. Verified on Nucleo L152. Delay between subsequent constant writes on different pins is 30ns.

Replacement for regular GPIO (DigitalIn, DigitalOut, DigitalInOut) classes which has superior speed. GPIO, Speed