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SAMA5 UDPHS: A little debugging progress. Not all transfers are working yet

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This commit is contained in:
Gregory Nutt 2013-09-03 13:09:50 -06:00
parent e77071c6e0
commit 7c34498c01
2 changed files with 35 additions and 1 deletions
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34
configs/sama5d3x-ek/README.txt
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@ -1250,6 +1250,40 @@ Configurations
Application Configuration -> Examples:
CONFIG_EXAMPLES_CDCACM=y : Enable an CDC/ACM example
Debugging USB Device. There is normal console debug output available
that can be enabled with CONFIG_DEBUG + CONFIG_DEBUG_USB. However,
USB device operation is very time critical and enabling this debug
output WILL interfere with the operation of the UDPHS. USB device
tracing is a less invasive way to get debug information: If tracing
is enabled, the USB device will save encoded trace output in in-memory
buffer; if the USB monitor is also enabled, that trace buffer will be
periodically emptied and dumped to the system logging device (the
serial console in this configuration):
Device Drivers -> "USB Device Driver Support:
CONFIG_USBDEV_TRACE=y : Enable USB trace feature
CONFIG_USBDEV_TRACE_NRECORDS=256 : Buffer 256 records in memory
Application Configuration -> NSH LIbrary:
CONFIG_NSH_USBDEV_TRACE=n : No builtin tracing from NSH
CONFIG_NSH_ARCHINIT=y : Automatically start the USB monitor
Application Configuration -> System NSH Add-Ons:
CONFIG_SYSTEM_USBMONITOR=y : Enable the USB monitor daemon
CONFIG_SYSTEM_USBMONITOR_STACKSIZE=2048 : USB monitor daemon stack size
CONFIG_SYSTEM_USBMONITOR_PRIORITY=50 : USB monitor daemon priority
CONFIG_SYSTEM_USBMONITOR_INTERVAL=1 : Dump trace data every second
CONFIG_SYSTEM_USBMONITOR_TRACEINIT=y : Enable TRACE output
CONFIG_SYSTEM_USBMONITOR_TRACECLASS=y
CONFIG_SYSTEM_USBMONITOR_TRACETRANSFERS=y
CONFIG_SYSTEM_USBMONITOR_TRACECONTROLLER=y
CONFIG_SYSTEM_USBMONITOR_TRACEINTERRUPTS=y
NOTE: If USB debug output is also enabled, both outpus will appear
on the serial console. However, the debug output will be
asynchronous with the trace output and, hence, difficult to
interpret.
STATUS:
2013-7-19: This configuration (as do the others) run at 396MHz.
The SAMA5D3 can run at 536MHz. I still need to figure out the

2
configs/sure-pic32mx/README.txt
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@ -902,7 +902,7 @@ Where <subdir> is one of the following:
Device Drivers -> "USB Device Driver Support:
CONFIG_USBDEV_TRACE=y : Enable USB trace feature
CONFIG_USBDEV_TRACE_NRECORDS=256 : Buffer 128 records in memory
CONFIG_USBDEV_TRACE_NRECORDS=256 : Buffer 256 records in memory
Application Configuration -> NSH LIbrary:
CONFIG_NSH_USBDEV_TRACE=n : No builtin tracing from NSH