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Spirit radio: Dropping packet size to 94 seems to fix problem with CRC failures.

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This commit is contained in:
Gregory Nutt 2017-08-06 12:02:55 -06:00
parent 38569d50fb
commit 91cfe6c9be
4 changed files with 21 additions and 9 deletions
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12
configs/b-l475e-iot01a/README.txt
View File

@ -398,6 +398,9 @@ Configuration sub-directories
At this point everything seems functional, but somewhat reliable.
Sometimes things seem to initialize in a bad state.
2017-08-06: Reducing the FIFO to 94 bytes fixed the problem with the
2 byte CRC.
Test Matrix:
The following configurations have been tested successfully (with
CRC disabled):
@ -526,3 +529,12 @@ Configuration sub-directories
is handled perfectly and, since it is TCP, there is no loss of data
and all tests pass. That is as good as I can do for now.
Another Errata: "Using the STack packet format and no CRC field, the
reading from RX FIFO to the last received byte, is not possible. ..."
Workaround: "By configuring the packet handler with at least one byte
of CRC, the problem is solved. If the CRC is not required in the
application, configure one byte of CRC in the receiver only, to read
the payload correctly from RX FIFO."
Reducing the FIFO to 94 bytes fixed the problem with the 2 byte CRC
but did not resolve that occasional, harmless RX FIFO error.

6
configs/b-l475e-iot01a/spirit-6lowpan/defconfig
View File

@ -36,14 +36,14 @@ CONFIG_FS_PROCFS=y
CONFIG_HAVE_CXX=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_INTELHEX_BINARY=y
CONFIG_IOB_BUFSIZE=96
CONFIG_IOB_BUFSIZE=94
CONFIG_IOB_NBUFFERS=32
CONFIG_IOB_NCHAINS=16
CONFIG_LIBM=y
CONFIG_MAX_TASKS=16
CONFIG_MAX_WDOGPARMS=2
CONFIG_MM_REGIONS=2
CONFIG_NET_6LOWPAN_FRAMELEN=96
CONFIG_NET_6LOWPAN_FRAMELEN=94
CONFIG_NET_6LOWPAN=y
CONFIG_NET_BROADCAST=y
CONFIG_NET_HOSTNAME="B-L475E-IOT01A"
@ -87,9 +87,9 @@ CONFIG_SCHED_LPWORKPRIORITY=160
CONFIG_SCHED_WAITPID=y
CONFIG_SDCLONE_DISABLE=y
CONFIG_SPIRIT_BROADCAST=y
CONFIG_SPIRIT_CRCDISABLE=y
CONFIG_SPIRIT_MULTICAST=y
CONFIG_SPIRIT_NETDEV=y
CONFIG_SPIRIT_PKTLEN=94
CONFIG_START_DAY=2
CONFIG_START_MONTH=8
CONFIG_STM32L4_SPI3=y

6
configs/b-l475e-iot01a/spirit-starhub/defconfig
View File

@ -19,14 +19,14 @@ CONFIG_FS_PROCFS=y
CONFIG_HAVE_CXX=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_INTELHEX_BINARY=y
CONFIG_IOB_BUFSIZE=96
CONFIG_IOB_BUFSIZE=94
CONFIG_IOB_NBUFFERS=32
CONFIG_IOB_NCHAINS=16
CONFIG_LIBM=y
CONFIG_MAX_TASKS=16
CONFIG_MAX_WDOGPARMS=2
CONFIG_MM_REGIONS=2
CONFIG_NET_6LOWPAN_FRAMELEN=96
CONFIG_NET_6LOWPAN_FRAMELEN=94
CONFIG_NET_6LOWPAN=y
CONFIG_NET_BROADCAST=y
CONFIG_NET_HOSTNAME="B-L475E-IOT01A"
@ -72,9 +72,9 @@ CONFIG_SCHED_LPWORKPRIORITY=160
CONFIG_SCHED_WAITPID=y
CONFIG_SDCLONE_DISABLE=y
CONFIG_SPIRIT_BROADCAST=y
CONFIG_SPIRIT_CRCDISABLE=y
CONFIG_SPIRIT_MULTICAST=y
CONFIG_SPIRIT_NETDEV=y
CONFIG_SPIRIT_PKTLEN=94
CONFIG_START_DAY=2
CONFIG_START_MONTH=8
CONFIG_STM32L4_SPI3=y

6
configs/b-l475e-iot01a/spirit-starpoint/defconfig
View File

@ -36,14 +36,14 @@ CONFIG_FS_PROCFS=y
CONFIG_HAVE_CXX=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_INTELHEX_BINARY=y
CONFIG_IOB_BUFSIZE=96
CONFIG_IOB_BUFSIZE=94
CONFIG_IOB_NBUFFERS=32
CONFIG_IOB_NCHAINS=16
CONFIG_LIBM=y
CONFIG_MAX_TASKS=16
CONFIG_MAX_WDOGPARMS=2
CONFIG_MM_REGIONS=2
CONFIG_NET_6LOWPAN_FRAMELEN=96
CONFIG_NET_6LOWPAN_FRAMELEN=94
CONFIG_NET_6LOWPAN=y
CONFIG_NET_BROADCAST=y
CONFIG_NET_HOSTNAME="B-L475E-IOT01A"
@ -88,9 +88,9 @@ CONFIG_SCHED_LPWORKPRIORITY=160
CONFIG_SCHED_WAITPID=y
CONFIG_SDCLONE_DISABLE=y
CONFIG_SPIRIT_BROADCAST=y
CONFIG_SPIRIT_CRCDISABLE=y
CONFIG_SPIRIT_MULTICAST=y
CONFIG_SPIRIT_NETDEV=y
CONFIG_SPIRIT_PKTLEN=94
CONFIG_START_DAY=2
CONFIG_START_MONTH=8
CONFIG_STM32L4_SPI3=y