driver: sigma-delta

1. add sigma-delta code and example.
2. add gpio output signal in io matrix.

Squashed commits:
[a25e7d4] minor changes for doc
[6a03a1e] minor changes on comments and doc.
[97dd9e4] Add doc.
update index.rst
change example index
This commit is contained in:
Wangjialin
2016-11-23 16:28:16 +08:00
parent 576052e5c2
commit b00b75db7e
9 changed files with 291 additions and 1 deletions

View File

@@ -418,5 +418,5 @@
#define SIG_IN_FUNC226_IDX 226
#define SIG_IN_FUNC227_IDX 227
#define SIG_IN_FUNC228_IDX 228
#define SIG_GPIO_OUT_IDX 256
#endif /* _SOC_GPIO_SIG_MAP_H_ */