Add comments to the sampling rate table explaining how the frequencies are selected and where do those numbers come from.
Signed-off-by: Marek Vasut <[email protected]> --- hardware/asix-sigma/asix-sigma.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/hardware/asix-sigma/asix-sigma.c b/hardware/asix-sigma/asix-sigma.c index 1c8e04b..d17558d 100644 --- a/hardware/asix-sigma/asix-sigma.c +++ b/hardware/asix-sigma/asix-sigma.c @@ -43,17 +43,23 @@ SR_PRIV struct sr_dev_driver asix_sigma_driver_info; static struct sr_dev_driver *di = &asix_sigma_driver_info; static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data); +/* + * The ASIX Sigma supports arbitrary integer frequency divider in + * the 50MHz mode. The divider is in range 1...256 , allowing for + * very precise sampling rate selection. This driver supports only + * a subset of the sampling rates. + */ static const uint64_t samplerates[] = { - SR_KHZ(200), - SR_KHZ(250), - SR_KHZ(500), - SR_MHZ(1), - SR_MHZ(5), - SR_MHZ(10), - SR_MHZ(25), - SR_MHZ(50), - SR_MHZ(100), - SR_MHZ(200), + SR_KHZ(200), /* div=250 */ + SR_KHZ(250), /* div=200 */ + SR_KHZ(500), /* div=100 */ + SR_MHZ(1), /* div=50 */ + SR_MHZ(5), /* div=10 */ + SR_MHZ(10), /* div=5 */ + SR_MHZ(25), /* div=2 */ + SR_MHZ(50), /* div=1 */ + SR_MHZ(100), /* Special FW needed */ + SR_MHZ(200), /* Special FW needed */ }; /* -- 1.8.5.3 ------------------------------------------------------------------------------ Start Your Social Network Today - Download eXo Platform Build your Enterprise Intranet with eXo Platform Software Java Based Open Source Intranet - Social, Extensible, Cloud Ready Get Started Now And Turn Your Intranet Into A Collaboration Platform http://p.sf.net/sfu/ExoPlatform _______________________________________________ sigrok-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sigrok-devel
