mjb/altos/src/util/make-kalman, branch branch-1.7

altos: Add computation of MicroPeak Kalman correction coefficients

2013-01-16T23:21:24+00:00

Signed-off-by: Keith Packard

altos: Improve TM v1.0 apogee estimate

2011-10-09T04:23:16+00:00

v1.0 boards have noisy accelerometer data caused by interactions between RF transmission and the accelerometer measurements; this noise generates a negative bias in the accelerometer readings. The net effect is that the estimated speed is lower than the actual speed, causing early an apogee estimate. By increasing the sigma value for accelerometer data, the kalman filter 'trusts' the acceleration data less, putting more weight on the barometer data. This causes the estimated time of apogee to be closer to the correct value. This reduces the response to changes in acceleration. This new value is applied solely to TeleMetrum v1.0 boards. v1.1 boards correct for this error, and hence can use the correct sigma value for the accelerometer. Signed-off-by: Keith Packard

altos: Fix make-kalman to run under dash

2011-09-22T05:57:06+00:00

Dash can't deal with >&, so use the old-school > file 2>&1 Signed-off-by: Keith Packard

fix bashism that prevents building with /bin/sh->/bin/dash

2011-09-21T22:42:52+00:00

altos: Restructure altos build to prepare for multi-arch support

2011-08-26T03:49:11+00:00

Split out sources into separate directories: core: architecture and product independent bits cc1111: cc1111-specific code drivers: architecture independent drivers product: product-specific sources and Makefile fragments util: scripts for building stuff This should have no effect on the built products, but testing is encouraged Signed-off-by: Keith Packard