2017-08-02 14:05:07 +02:00
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README
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^^^^^^
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README for NuttX port to the LC823450XGEVK board.
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The board information is available at
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http://www.onsemi.com/PowerSolutions/evalBoard.do?id=LC823450XGEVK
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LC823450 related documents are available at
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http://www.onsemi.com/PowerSolutions/supportDoc.do?type=AppNotes&rpn=LC823450
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2017-11-07 13:34:23 +01:00
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OpenOCD for NuttX thread and LC823450 support is available at
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https://github.com/sony/openocd-nuttx/wiki
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MakeIPL2 Tool for eMMC boot is available at
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http://www.onsemi.com/PowerSolutions/supportDoc.do?type=software&rpn=LC823450
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2017-08-02 14:05:07 +02:00
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This port is intended to test LC823450 features including SMP.
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2017-09-12 03:00:32 +02:00
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Supported peripherals:
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2017-11-08 13:25:13 +01:00
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UART, TIMER, RTC, GPIO, DMA, I2C, SPI, LCD, eMMC, USB, WDT, ADC, Audio.
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2017-08-02 14:05:07 +02:00
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Settings
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^^^^^^^^
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2017-11-07 13:34:23 +01:00
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1. eMMC boot and SRAM boot via openocd are supported.
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2017-12-20 14:33:06 +01:00
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If you do SRAM boot via openocd+gdb, please specify hookpost-load in .gdbinit
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to set MSP (main stack pointer) as follows.
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define hookpost-load
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print *(uint32_t *)0x02040000
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set $sp=$
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end
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2017-08-02 14:05:07 +02:00
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2. If SWD connection is lost, please specify lower adaptor clock.
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3. Both CPUs are running at 160MHz.
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4. Internal SRAMs (seg0 to seg5) are used.
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5. Serial console can be used via external USB-UART (115200/8/N/1).
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6. Interrupt handlers except for inter-cpu are handled on CPU0.
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SMP related Status
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^^^^^^^^^^^^^^^^^^
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2017-11-09 12:36:33 +01:00
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CPU activities are shown at D9 (CPU0) and D10 (CPU1) respectively.
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2018-01-18 04:49:46 +01:00
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Currently all applications except for ostest work in SMP mode but might stop
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due to deadlocks or ASSERT(). For a workaround, please try
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$ cd apps; git diff
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diff --git a/examples/ostest/waitpid.c b/examples/ostest/waitpid.c
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index 687f50ca..8418eff8 100644
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--- a/examples/ostest/waitpid.c
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+++ b/examples/ostest/waitpid.c
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@@ -54,7 +54,7 @@
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****************************************************************************/
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2018-08-13 15:39:38 +02:00
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2018-01-18 04:49:46 +01:00
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#define RETURN_STATUS 14
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-#define NCHILDREN 3
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+#define NCHILDREN 2
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#define PRIORITY 100
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2018-08-13 15:39:38 +02:00
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2018-01-18 04:49:46 +01:00
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/****************************************************************************
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2017-08-02 14:05:07 +02:00
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Other Status
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^^^^^^^^^^^^
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1. nsh built-in commands such as ps, free are available.
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NuttShell (NSH)
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nsh> ps
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PID GROUP CPU PRI POLICY TYPE NPX STATE EVENT SIGMASK STACK COMMAND
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0 0 0 0 FIFO Kthread N-- Assigned 00000000 000000 CPU0 IDLE
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1 0 1 0 FIFO Kthread N-- Running 00000000 002044 CPU1 IDLE
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3 1 0 100 FIFO Task --- Running 00000000 003052 init
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nsh> free
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total used free largest
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Mem: 1027024 13136 1013888 1013888
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2. date command can be used to get/set RTC date and time.
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nsh> date
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Oct 03 00:00:55 2013
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nsh> date -s "Mar 31 12:34:56 2017"
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nsh> date
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Mar 31 12:34:56 2017
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3. i2c app can be used to test I2C buses.
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nsh> i2c get -b 1 -a 18 -r 0
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READ Bus: 1 Addr: 18 Subaddr: 00 Value: f9
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4. nxhello app can be used to test LCD via SPI.
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nsh> nxhello
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nxhello_initialize: Initializing LCD
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nxhello_initialize: Open NX
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nxhello_main: NX handle=20096f0
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nxhello_main: Set background color=0
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nxhello_main: Screen resolution (128,48)
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nxhello_hello: Position (31,20)
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nxhello_main: Close NX
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2017-08-27 12:00:31 +02:00
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5. eMMC can be accessed via /dev/mtdblock0pX
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nsh> mkfatfs -F 32 /dev/mtdblock0p10
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nsh> mount -t vfat /dev/mtdblock0p10 /mnt/sd0
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nsh> df
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Block Number
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Size Blocks Used Available Mounted on
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16384 453025 2 453023 /mnt/sd0
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0 0 0 0 /proc
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nsh> ls /mnt/sd0
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/mnt/sd0:
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nsh> ps > /mnt/sd0/ps.txt
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nsh> ls /mnt/sd0
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/mnt/sd0:
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ps.txt
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Micro SD slot on the board can be used via /dev/mtdblock1.
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Please note that card hotplugging is not supported.
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6. USB Mass Storage Class support
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nsh> msconn
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nsh> msdis
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2017-09-12 03:00:32 +02:00
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7. ADC
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nsh> adc
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adc_main: g_adcstate.count: 1
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adc_main: Hardware initialized. Opening the ADC device: /dev/adc0
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Sample:
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1: channel: 0 value: 366
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2: channel: 1 value: 691
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3: channel: 2 value: 752
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4: channel: 3 value: 963
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5: channel: 4 value: 6
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6: channel: 5 value: 0
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8. WDT
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nsh> wdog
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ping elapsed=0
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ping elapsed=500
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ping elapsed=1000
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ping elapsed=1500
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ping elapsed=2000
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ping elapsed=2500
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ping elapsed=3000
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ping elapsed=3500
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ping elapsed=4000
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ping elapsed=4500
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NO ping elapsed=5000
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NO ping elapsed=5500
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NO ping elapsed=6000
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2017-11-07 13:34:23 +01:00
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9. IPL2 and eMMC boot
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IPL2 is the 2nd boot loader based on NuttX and can be built as follows.
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$ make distclean
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2019-08-06 00:53:39 +02:00
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$ ./tools/configure.sh lc823450-xgevk:ipl2
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2017-11-07 13:34:23 +01:00
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$ make V=1
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$ MakeIPL2 ./nuttx.bin 0 2 0 0 0
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$ cp LC8234xx_17S_start_data.boot_bin /tmp/
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To write the IPL2 (LC8234xx_17S_start_data.boot_bin),
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firstly build USB configuration image.
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$ make distclean
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2019-08-06 00:53:39 +02:00
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$ ./tools/configure.sh lc823450-xgevk:usb
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2017-11-07 13:34:23 +01:00
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$ make V=1
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Load the nuttx.bin with openocd + gdb
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$ cd openocd-nuttx
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$ ./bootstrap
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$ ./configure
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$ make
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$ sudo ./src/openocd -s ./tcl -f ./tcl/board/lc823450_xgevk.cfg -c init -c "reset halt"
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$ arm-none-eabi-gdb
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(gdb) target extended-remote :3333
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(gdb) load ./nuttx
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(gdb) symbol-file ./nuttx
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(gdb) c
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Start USB MSC to copy nuttx.bin and the IPL2 to the FAT32 partition (/dev/mtdblock0p10)
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then dd the files to the kernel partition (/dev/mtdblock0p4) and the IPL2 partition
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(/dev/mtdblock0p1) respectively.
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nsh> mkfatfs -F 32 /dev/mtdblock0p10
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nsh> msconn
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$ sudo cp ./nuttx.bin /media/usb0/
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$ sudo cp /tmp/LC8234xx_17S_start_data.boot_bin /media/usb0/
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$ sudo sync
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nsh> msdis
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nsh> mount -t vfat /dev/mtdblock0p10 /mnt/sd0
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nsh> dd if=/mnt/sd0/nuttx.bin of=/dev/mtdblock0p4
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nsh> dd if=/mnt/sd0/LC8234xx_17S_start_data.boot_bin of=/dev/mtdblock0p1
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nsh> reboot
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2017-09-12 03:00:32 +02:00
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2017-11-08 13:25:13 +01:00
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10. Audio playback (WAV/44.1k/16bit/2ch only)
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2017-12-20 14:33:06 +01:00
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Firstly, please make sure that the jumper pins are set as follows.
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2017-11-08 13:25:13 +01:00
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JP1, JP2 => short
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JP3, JP4 => open
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To play WAV file on uSD card,
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nsh> mount -t vfat /dev/mtdblock1 /mnt/sd1
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nsh> nxplayer
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nxplayer> play /mnt/sd1/sample.wav
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nxplayer> volume 50
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2017-12-20 14:33:06 +01:00
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Please note that a WAV file which contains sub-chunks other than "fmt"
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and "data" is not supported in pcm_decode.c So, if your wav file contains
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meta-data, please remove the sub-chunks before playing.
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11. Networking
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lc823450/rndis configuration supports networking features with RNDIS.
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To use this feature, you have to connect the board to a RNDIS host.
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Currently Linux host is only tested but Windows host should work.
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If DHCP server is available, you would see ifconfig results like:
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nsh> ifconfig
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eth0 Link encap:Ethernet HWaddr 00:e0:de:ad:be:ff at UP
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inet addr:192.168.1.244 DRaddr:192.168.1.1 Mask:255.255.255.0
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lo Link encap:Local Loopback at UP
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inet addr:127.0.0.1 DRaddr:127.0.0.1 Mask:255.0.0.0
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IPv4 TCP UDP ICMP
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Received 0007 0000 0006 0000
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Dropped 0001 0000 0000 0000
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IPv4 VHL: 0000 Frg: 0001
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Checksum 0000 0000 0000 ----
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TCP ACK: 0000 SYN: 0000
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RST: 0000 0000
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Type 0000 ---- ---- 0000
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Sent 0003 0000 0003 0000
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Rexmit ---- 0000 ---- ----
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2018-01-10 07:36:16 +01:00
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12. DVFS (Dynamic Voltage and Frequency Scaling)
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lc823450-xgevk/audio and rndis configurations support DVFS.
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You can check the status via /proc/dvfs
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nsh> cat /proc/dvfs
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cur_freq 160
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enable 0
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By default, DVFS is disabled. To enable,
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nsh> echo "enable 1" > /proc/dvfs
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2018-02-23 14:26:40 +01:00
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In addition, you can change CPU frequency to 160/80/40 manually.
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To change the frequency, enable the DVFS first then do the following.
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2018-01-10 07:36:16 +01:00
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nsh> echo "cur_freq 80" > /proc/dvfs.
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2018-02-23 14:26:40 +01:00
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If you want to run in autonomous mode,
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nsh> echo "auto 1" > /proc/dvfs.
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In autonomous mode, you don't need to set cur_freq. Instead,
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cur_freq will show the current CPU frequency.
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NOTE: Currently Vdd1 is fixed to 1.2V which will be changed
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in the future version.
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2017-11-08 13:25:13 +01:00
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2017-08-02 14:05:07 +02:00
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TODO
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^^^^
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2017-09-12 03:00:32 +02:00
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The following features will be supported.
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2017-11-09 12:36:33 +01:00
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Accelerometer, etc.
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