This change will fix the timing closure for designs where the external
clock is not a submultiple of the s_axi_clk.
Signed-off-by: AndreiGrozav <andrei.grozav@analog.com>
New features:
1. External sync force the phase align. The external sync was used to align
the phases of enabled pwms, but only after being armed by a
load_config signal toggle.
This feature lets the user decide between using load_config to
arm and wait for a neg-edge of sync or automatic phase align trigger
on the ext_sync neg-edge.
2. Force align. Lets the user chose between immediately stopping the
active pulses and realigning them, or waiting for all running pulse
periods end, before realigning.
3. Start at sync. When this feature is activated, the pulses will start immediately
after the trigger event. Otherwise, each pulse will start after a period
equal to the one for which it is set.
4. Use parameters to set the default status after reset of the
- soft reset
- start at sync
- force align
- ext sync align
Update regmap.
Fixes:
1. The polarity on disabled channels was staying high instead of low.
2. Fix 0 and 100 proc duty cycle configuration.
Signed-off-by: AndreiGrozav <andrei.grozav@analog.com>
Signed-off-by: Alin-Tudor Sferle <Alin-Tudor.Sferle@analog.com>
Lattice tools give error for using blocking assignments at one side
and non blocking in the other.
Signed-off-by: Villyam <Vilmoscsaba.Jozsa@analog.com>
Previously when issuing a load_config, each pwm channel
was stopped in its tracks and waited for an external sync,
if that was active, or load_config release.
The desired behaviour is to wait for the pwm channels to finish
their events from the current period, before a new aligned start.
Also, the first positive edge of each pulse was initiated only
in the second pwm channel period.
This niche behaviours have not affected any functionality in the
long term alignments for current setups.
Signed-off-by: AndreiGrozav <andrei.grozav@analog.com>
When leaving the offset equal to zero for a pwm
channel. That pwm channel was not waiting for all
channels to get in sync after a load config.
Signed-off-by: AndreiGrozav <andrei.grozav@analog.com>
* Added header license for the files that didn't have
* Modified parentheses
* Removed extra spaces at the end of lines
* Fixed parameters list to be each parameter on its line
* Deleted lines after endmodule and consecutive empty lines
* Fixed indentation
Signed-off-by: Iulia Moldovan <iulia.moldovan@analog.com>
Fix offset for pwms with different periods.
The previous version was using an offset scheme based on pwm counter_0.
By using a separate offset counter the user will not be constrained by
pwm_0 period in regards with the offset of other pulses. In this version
offset 0 is used to delay pwm 0 in regards to the offset counter.
The offset counter will start after the load_config signal is asserted
and all active pwm counters finish the previous cycle or by a software
reset.
The software reset should also be used when using external_sync.
AndreiGrozav
Villyam
PIoandan
Iulia Moldovan
Alin-Tudor Sferle
Sergiu Arpadi
laurent-19
Jem Geronimo
Iacob_Liviu
Nick Pillitteri
Adrian Costina