SAMA5D4-EK: NSH configuration now has TWI0 enabled and supports the I2C tool
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Gregory Nutt
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5c459dd0e3
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6c3f159e5f
@ -2318,9 +2318,9 @@ I2C Tool
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CONFIG_SAMA5_TWI2=y : Enable TWI2
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System Type -> TWI device driver options
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SAMA5_TWI0_FREQUENCY=100000 : Select a TWI0 frequency
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SAMA5_TWI1_FREQUENCY=100000 : Select a TWI1 frequency
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SAMA5_TWI2_FREQUENCY=100000 : Select a TWI2 frequency
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SAMA5_TWI0_FREQUENCY=100000 : Select a TWI0 frequency (default)
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SAMA5_TWI1_FREQUENCY=100000 : Select a TWI1 frequency (default)
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SAMA5_TWI2_FREQUENCY=100000 : Select a TWI2 frequency (default)
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Device Drivers -> I2C Driver Support
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CONFIG_I2C=y : Enable I2C support
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@ -3286,6 +3286,9 @@ Configurations
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CONFIG_DEV_RANDOM=y : Enables /dev/random
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6. This configuration has support for NSH built-in applications enabled.
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Only one built-in application is included by default, however: The
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I2C Tool. See the section above entitle "I2C Tool" and the note with
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regar to I2C below.
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7. This configuration has support for the FAT, ROMFS, and PROCFS file
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systems built in.
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@ -3318,7 +3321,7 @@ Configurations
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`- init.d/
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`- rcS : Start-up script
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(There will, of course, be other devices uner /dev include /dev/console,
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(There will, of course, be other devices under /dev including /dev/console,
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/dev/null, /dev/zero, /dev/random, etc.).
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Relevant configuration options include:
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@ -3360,20 +3363,20 @@ Configurations
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| `- ram1 : RAM disk block driver
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|- etc/
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| `- init.d/
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`- rcS : Start-up script
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| `- rcS : Start-up script
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|- proc/
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| |- 0/ : Information about Task ID 0
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| | |- cmdline
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| | |- stack
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| | |- status
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| | `- group/
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| | |- fd
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| | `- status
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| | |- cmdline : Command line used to start the task
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| | |- stack : Stack allocation
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| | |- status : Current task status
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| | `- group/ : Information about the task group
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| | |- fd : File descriptors open in the group
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| | `- status : Status of the group
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| |- 1/ : Information about Task ID 1
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| | `- ... : Same psuedo-directories as for Task ID 0
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| |- ... : ...
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| |- n/ : Information about Task ID n
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| | `- ...
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| | `- ... : Same psuedo-directories as for Task ID 0
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| |- uptime : Processor uptime
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`- tmp/
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@ -3465,23 +3468,25 @@ Configurations
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See the "kludge" for EMAC that is documented in the To-Do list at
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the end of this README file.
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12. The SAMA5D4-EK includes for an AT25 serial DataFlash. That support is
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12. I2C Tool. This configuration enables TWI0 (only) as an I2C master
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device. This configuration also supports the I2C tool at
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apps/system/i2c that can be used to peek and poke I2C devices on the
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TIW0 bus. See the discussion above under "I2C Tool" for detailed
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configuration settings.
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13. The SAMA5D4-EK includes for an AT25 serial DataFlash. That support is
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NOT enabled in this configuration. Support for that serial FLASH can
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be enabled by modifying the NuttX configuration as described above in
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the paragraph entitled "AT25 Serial FLASH".
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13. Support the USB low-, high- and full-speed OHCI host driver can be
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14. Support the USB low-, high- and full-speed OHCI host driver can be
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enabled by changing the NuttX configuration file as described in the
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section entitled "USB High-Speed Host" above.
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14. Support the USB high-speed USB device driver (UDPHS) can be enabled
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15. Support the USB high-speed USB device driver (UDPHS) can be enabled
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by changing the NuttX configuration file as described above in the
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section entitled "USB High-Speed Device."
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15. I2C Tool. NuttX supports an I2C tool at apps/system/i2c that can be
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used to peek and poke I2C devices. See the discussion above under
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"I2C Tool" for detailed configuration settings.
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16. This example can be configured to exercise the watchdog timer test
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(apps/examples/watchdog). See the detailed configuration settings in
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the section entitled "Watchdog Timer" above.
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@ -186,7 +186,7 @@ CONFIG_SAMA5_HSMC=y
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# CONFIG_SAMA5_USART2 is not set
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CONFIG_SAMA5_USART3=y
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CONFIG_SAMA5_USART4=y
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# CONFIG_SAMA5_TWI0 is not set
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CONFIG_SAMA5_TWI0=y
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# CONFIG_SAMA5_TWI1 is not set
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# CONFIG_SAMA5_TWI2 is not set
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# CONFIG_SAMA5_TWI3 is not set
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@ -249,6 +249,11 @@ CONFIG_SAMA5_EMAC0_PHYSR_100FD=0x6
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# CONFIG_SAMA5_EMACB_NBC is not set
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CONFIG_SAMA5_EMAC0_ISETH0=y
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#
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# TWI device driver options
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#
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CONFIG_SAMA5_TWI0_FREQUENCY=100000
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#
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# HSMCI device driver options
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#
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@ -452,7 +457,12 @@ CONFIG_DEV_RANDOM=y
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# CONFIG_ARCH_HAVE_PWM_PULSECOUNT is not set
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# CONFIG_PWM is not set
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# CONFIG_ARCH_HAVE_I2CRESET is not set
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# CONFIG_I2C is not set
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CONFIG_I2C=y
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# CONFIG_I2C_SLAVE is not set
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CONFIG_I2C_TRANSFER=y
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CONFIG_I2C_WRITEREAD=y
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# CONFIG_I2C_POLLED is not set
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# CONFIG_I2C_TRACE is not set
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# CONFIG_SPI is not set
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# CONFIG_I2S is not set
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CONFIG_RTC=y
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@ -1065,6 +1075,13 @@ CONFIG_NSH_MAX_ROUNDTRIP=20
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#
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# I2C tool
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#
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CONFIG_SYSTEM_I2CTOOL=y
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CONFIG_I2CTOOL_MINBUS=0
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CONFIG_I2CTOOL_MAXBUS=0
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CONFIG_I2CTOOL_MINADDR=0x03
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CONFIG_I2CTOOL_MAXADDR=0x77
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CONFIG_I2CTOOL_MAXREGADDR=0xff
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CONFIG_I2CTOOL_DEFFREQ=100000
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#
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# INI File Parser
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