diff options
| author | Marti Bolivar <mbolivar@leaflabs.com> | 2011-02-18 04:00:00 -0500 |
|---|---|---|
| committer | Marti Bolivar <mbolivar@leaflabs.com> | 2011-02-18 04:00:00 -0500 |
| commit | 0d440118bd4e1ba64f92d3636302fbddeac5bef6 (patch) | |
| tree | da06d190cbcf54bdbe54ff484ac66ac924c3ce38 /notes | |
| parent | 3f76591b3616c07c5a02624aff8649d5fa7e9f4b (diff) | |
| download | librambutan-0d440118bd4e1ba64f92d3636302fbddeac5bef6.tar.gz librambutan-0d440118bd4e1ba64f92d3636302fbddeac5bef6.zip | |
Basic DAC functionality (high-density devices only).
Diffstat (limited to 'notes')
| -rw-r--r-- | notes/dac.txt | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/notes/dac.txt b/notes/dac.txt index 9df0782..d027402 100644 --- a/notes/dac.txt +++ b/notes/dac.txt @@ -13,11 +13,25 @@ control, and timer events. We'll just use software triggering for now. There is (obviously) DMA support for DAC output. -There are noise output and triangle wave output features with variable -amplitude. - -There are many additional modes to tigger output to both channels at the same -time. +There are noise (via LFSR) output and triangle wave output features +with variable amplitude. + +There are eleven modes to trigger output to both channels at the same +time, as follows: + + - Independent trigger: + (1) No wave generation + (2) Same LFSR + (3) Different LFSR + (4) Same triangle + (5) Different triangle + - (6) Simultaneous software start + - Simultaneous trigger: + (7) Without wave generation + (8) Same LFSR + (9) Different LFSR + (10) Same triangle + (11) Different triangle Buffering will be enabled by default. |