Jared Boone
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422173a5f7
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SGPIO: Add CPLD RX Q channel inversion, API to control.
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2014-08-11 13:02:02 -07:00 |
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Jared Boone
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0ab6a92ae6
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Change SGPIO CPLD decimation API interface to be one-based (decimation of 1 to 8).
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2014-08-11 13:01:50 -07:00 |
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Jared Boone
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c6b1ec2979
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Adjust SGPIO GPDMA trigger slice data to a single clock width pulse. Previously, it was 3 clocks long with a 4 clock period, which *seemed* to address GPDMA data drop-outs at maximum baseband speed (20Msps complex).
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2013-12-31 20:27:14 -08:00 |
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Jared Boone
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2fab6c40cd
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Extract SGPIO multi_slice configuration argument into an init-time function, so it doesn't need to be passed each time the SGPIO interface direction is changed.
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2013-12-08 12:21:41 -08:00 |
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Jared Boone
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50ec268794
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Bracket SGPIO GPDMA slice configuration with multislice==false test. It only makes sense in single slice mode (until I have a clever idea for doing GPDMA with multiple slices).
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2013-12-08 12:14:00 -08:00 |
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Jared Boone
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809df425c1
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Add SGPIO configuration to support GPDMA interrupts.
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2013-12-08 11:54:50 -08:00 |
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Jared Boone
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91a7ca4983
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Fix return value on SGPIO decimation function.
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2013-11-20 15:08:59 -08:00 |
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Jared Boone
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e3f9e204c1
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Relocate SGPIO pin configuration -- it only needs to be done once.
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2013-11-20 13:22:19 -08:00 |
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Jared Boone
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3bf6573dc6
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Add skip-every-N function to CPLD, where N is controlled by three input pins from the microcontroller.
Updated SGPIO CPLD testbench, as it had fallen a bit out of date.
Add SGPIO API initialization and control of CPLD decimation feature.
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2013-11-19 19:52:06 -08:00 |
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Jared Boone
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967e699815
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Another little fix for the two's complement change -- initialize SGPIO data registers to DAC zero values.
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2013-11-17 22:23:08 -08:00 |
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Jared Boone
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2e2275ed51
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Pull out leaky tri-state transceiver_mode value from sgpio_configure(), replace with SGPIO_DIRECTION_* #defines.
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2013-09-17 22:29:41 -07:00 |
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Jared Boone
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52dda32a18
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Adjust logic in sgpio_configure() to treat transceiver modes outside TX and RX as RX. "OFF", for example...
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2013-09-17 15:32:11 -07:00 |
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TitanMKD
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b8590db02a
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Comment fix.
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2013-04-04 19:48:28 +02:00 |
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TitanMKD
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118953b451
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Lot of comments added.
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2013-04-04 19:19:59 +02:00 |
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Jared Boone
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cc5f1c61c7
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Fix clock edge for TX mode. TX data was completely crapped up due to skew on my Jellybean/Lemondrop board. Hopefully, this also applies to Jawbreaker. I'll recheck once I have hardware in-hand.
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2012-11-02 22:34:43 -07:00 |
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Jared Boone
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9824a723b7
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Moved invariant in sgpio_configure() loop out of loop. Originally, so I could use the value to calculate another invariant.
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2012-10-12 09:45:18 -07:00 |
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Jared Boone
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a1af4356b6
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Reworked sgpio.c to make use of #defines for fields, instead of hard-coding shifts. Proper.
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2012-10-11 20:46:21 -07:00 |
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Jared Boone
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9b579232a7
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Consolidated single-slice SGPIO configuration functions into single sgpio_configure() function.
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2012-10-11 15:45:28 -07:00 |
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Jared Boone
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1bad2d8536
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Consolidated two "deep" SGPIO configuration functions into one, qualified by transceiver mode (RX or TX). 95-ish % of the code was common.
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2012-10-11 15:18:16 -07:00 |
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Jared Boone
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8291d7fac0
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Add SGPIO configuration function for "deep" (8-slice) TX mode.
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2012-10-11 13:04:30 -07:00 |
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Jared Boone
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5989465eb9
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Add SGPIO configuration API and code, extracted from existing SGPIO projects.
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2012-10-10 14:30:28 -07:00 |
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