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Use UART1 for the console on the SAM4S-Xplained not USART0

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This commit is contained in:
Gregory Nutt 2013-06-11 19:24:47 -06:00
parent ca16404e3d
commit 871b8f5235
2 changed files with 44 additions and 28 deletions
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44
configs/sam4s-xplained/README.txt
View File

@ -318,8 +318,24 @@ Serial Consoles
------ ------
If you have a TTL to RS-232 convertor then this is the most convenient If you have a TTL to RS-232 convertor then this is the most convenient
serial console to use. It is the default in all of these configurations. serial console to use. UART1 is the default in all of these
An option is to use the virtual COM port. configurations.
UART1 RXD PB2 J1 pin 3 J4 pin 3
UART1 TXD PB3 J1 pin 4 J4 pin 4
GND J1 pin 9 J4 pin 9
Vdd J1 pin 10 J4 pin 10
USART1 is another option:
USART1 RXD PA21 J2 pin 6
USART1 TXD PA22 J2 pin 1
GND J2 pin 9
Vdd J2 pin 10
Yet another option is to use UART0 and the virtual COM port. This
option may be more convenient for long term development, but was
painful to use during board bring-up.
Virtual COM Port Virtual COM Port
---------------- ----------------
@ -516,25 +532,25 @@ Configurations
NOTES: NOTES:
1. This configuration provides test output on USART0 which is available 1. This configuration provides test output on UART1 which is available
on EXT1 or EXT4 (see the section "Serial Consoles" above). The on J3 or J4 (see the section "Serial Consoles" above). The
virtual COM port could be used, instead, by reconfiguring to use virtual COM port could be used, instead, by reconfiguring to use
USART1 instead of USART0: UART0 instead of UART1:
System Type -> AT91SAM3/4 Peripheral Support System Type -> AT91SAM3/4 Peripheral Support
CONFIG_SAM_USART0=y CONFIG_SAM_UART0=y
CONFIG_SAM_USART1=n CONFIG_SAM_UART1=n
Device Drivers -> Serial Driver Support -> Serial Console Device Drivers -> Serial Driver Support -> Serial Console
CONFIG_USART0_SERIAL_CONSOLE=y CONFIG_UART0_SERIAL_CONSOLE=y
Device Drivers -> Serial Driver Support -> USART0 Configuration Device Drivers -> Serial Driver Support -> USART0 Configuration
CONFIG_USART0_2STOP=0 CONFIG_UART0_2STOP=0
CONFIG_USART0_BAUD=115200 CONFIG_UART0_BAUD=115200
CONFIG_USART0_BITS=8 CONFIG_UART0_BITS=8
CONFIG_USART0_PARITY=0 CONFIG_UART0_PARITY=0
CONFIG_USART0_RXBUFSIZE=256 CONFIG_UART0_RXBUFSIZE=256
CONFIG_USART0_TXBUFSIZE=256 CONFIG_UART0_TXBUFSIZE=256
2. This configuration is set up to use the NuttX OABI toolchain (see 2. This configuration is set up to use the NuttX OABI toolchain (see
above). Of course this can be reconfigured if you prefer a different above). Of course this can be reconfigured if you prefer a different

28
configs/sam4s-xplained/ostest/defconfig
View File

@ -139,8 +139,8 @@ CONFIG_ARCH_CHIP_SAM4S=y
# CONFIG_SAM34_TWIM1 is not set # CONFIG_SAM34_TWIM1 is not set
# CONFIG_SAM34_TWIS1 is not set # CONFIG_SAM34_TWIS1 is not set
# CONFIG_SAM34_UART0 is not set # CONFIG_SAM34_UART0 is not set
# CONFIG_SAM43_UART1 is not set CONFIG_SAM34_UART1=y
CONFIG_SAM34_USART0=y # CONFIG_SAM34_USART0 is not set
# CONFIG_SAM34_USART1 is not set # CONFIG_SAM34_USART1 is not set
# CONFIG_SAM34_ADC12B is not set # CONFIG_SAM34_ADC12B is not set
# CONFIG_SAM34_DACC is not set # CONFIG_SAM34_DACC is not set
@ -157,7 +157,6 @@ CONFIG_SAM34_USART0=y
# #
# AT91SAM3/4 USART Configuration # AT91SAM3/4 USART Configuration
# #
CONFIG_USART0_ISUART=y
# #
# AT91SAM3/4 GPIO Interrupt Configuration # AT91SAM3/4 GPIO Interrupt Configuration
@ -318,22 +317,23 @@ CONFIG_DEV_NULL=y
CONFIG_SERIAL=y CONFIG_SERIAL=y
CONFIG_DEV_LOWCONSOLE=y CONFIG_DEV_LOWCONSOLE=y
# CONFIG_16550_UART is not set # CONFIG_16550_UART is not set
CONFIG_ARCH_HAVE_USART0=y CONFIG_ARCH_HAVE_UART1=y
CONFIG_MCU_SERIAL=y CONFIG_MCU_SERIAL=y
CONFIG_USART0_SERIAL_CONSOLE=y # CONFIG_USART0_SERIAL_CONSOLE is not set
CONFIG_UART1_SERIAL_CONSOLE=y
# CONFIG_NO_SERIAL_CONSOLE is not set # CONFIG_NO_SERIAL_CONSOLE is not set
# #
# USART0 Configuration # UART1 Configuration
# #
CONFIG_USART0_RXBUFSIZE=256 CONFIG_UART1_RXBUFSIZE=256
CONFIG_USART0_TXBUFSIZE=256 CONFIG_UART1_TXBUFSIZE=256
CONFIG_USART0_BAUD=115200 CONFIG_UART1_BAUD=115200
CONFIG_USART0_BITS=8 CONFIG_UART1_BITS=8
CONFIG_USART0_PARITY=0 CONFIG_UART1_PARITY=0
CONFIG_USART0_2STOP=0 CONFIG_UART1_2STOP=0
# CONFIG_USART0_IFLOWCONTROL is not set # CONFIG_UART1_IFLOWCONTROL is not set
# CONFIG_USART0_OFLOWCONTROL is not set # CONFIG_UART1_OFLOWCONTROL is not set
# CONFIG_SERIAL_IFLOWCONTROL is not set # CONFIG_SERIAL_IFLOWCONTROL is not set
# CONFIG_SERIAL_OFLOWCONTROL is not set # CONFIG_SERIAL_OFLOWCONTROL is not set
# CONFIG_USBDEV is not set # CONFIG_USBDEV is not set