Mercurial > ~darius > hgwebdir.cgi > modulator
diff dac.pio @ 27:e1d8fe3e418a
Run PIOs at 1x with delays and sync.
Can now use a single trigger to set both DAC & ctrl.
DAC [still] jitters against the ctrl though..
| author | Daniel O'Connor <darius@dons.net.au> |
|---|---|
| date | Wed, 26 Feb 2025 11:03:59 +1030 |
| parents | 6070d2e66b4c |
| children | 600a394629e6 |
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--- a/dac.pio Tue Feb 25 17:03:51 2025 +1030 +++ b/dac.pio Wed Feb 26 11:03:59 2025 +1030 @@ -3,9 +3,7 @@ ; .program dac -.define DAC_IRQ 0 -.define DAC_TRIGGER_IRQ 0 -.define CTRL_TRIGGER_IRQ 1 +.define TRIGGER_IRQ 0 ; Need 1 side set pin, the clock .side_set 1 @@ -13,20 +11,18 @@ mov pins, null side 0 nop side 1 ; Wait for start trigger and clear IRQ - wait 1 irq DAC_TRIGGER_IRQ side 0 -; Trigger the control SM - irq nowait CTRL_TRIGGER_IRQ side 0 + wait 1 irq TRIGGER_IRQ side 0 ; Clock DAC and write data from the FIFO ; DAC clocks data in on the rising clock edge .wrap_target - out pins 8 side 0 - nop side 1 - out pins 8 side 0 - nop side 1 - out pins 8 side 0 - nop side 1 - out pins 8 side 0 - nop side 1 + out pins 8 side 0 [1] + nop side 1 [1] + out pins 8 side 0 [1] + nop side 1 [1] + out pins 8 side 0 [1] + nop side 1 [1] + out pins 8 side 0 [1] + nop side 1 [1] .wrap % c-sdk { @@ -57,8 +53,7 @@ sm_config_set_clkdiv(&c, clkdiv); - // Load our configuration, and start the program from the beginning + // Load our configuration pio_sm_init(pio, sm, offset, &c); - pio_sm_set_enabled(pio, sm, true); } %}