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Use UART0 for the serial console

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This commit is contained in:
Gregory Nutt 2014-10-18 12:47:45 -06:00
parent c71e687089
commit c15f07dba3
3 changed files with 94 additions and 42 deletions
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18
arch/arm/src/efm32/Kconfig
View File

@ -48,16 +48,19 @@ endchoice
# in turn, select general capabilities of the MCU family
config EFM32_EFM32TG
bool n
bool
default n
config EFM32_EFM32G
bool n
bool
default n
select EFM32_HAVE_USART2
select EFM32_HAVE_UART0
select EFM32_HAVE_LEUART1
config EFM32_EFM32GG
bool n
bool
default n
select EFM32_HAVE_USART2
select EFM32_HAVE_UART0
select EFM32_HAVE_UART1
@ -96,19 +99,19 @@ config EFM32_UART
# Then, these are the actual, selectable peripheral options
config EFM32_UART0
config EFM32_USART0
bool "USART0"
default n
select ARCH_HAVE_USART0
select EFM32_UART
config EFM32_UART1
config EFM32_USART1
bool "USART1"
default n
select ARCH_HAVE_USART1
select EFM32_UART
config EFM32_UART2
config EFM32_USART2
bool "USART2"
default n
depends on EFM32_HAVE_USART2
@ -138,4 +141,5 @@ config EFM32_LEUART1
select EFM32_HAVE_LEUART1
select EFM32_UART
endif
endmenu # EFM32 Peripheral Support
endif # ARCH_CHIP_EFM32

82
configs/efm32-g8xx-stk/README.txt
View File

@ -60,52 +60,70 @@ LEDs
Serial Console
==============
The EFM32G890F128 support the following options for serial output:
Pin Availability
----------------
The EFM32G890F128 support the following options for serial output. NOTE
(1) that not all of these pins are available for use as a serial console,
however. And (2) not all pins made available by the board.
------- -- ----
US0_RX #0 PE11
US0_RX #1 PE6
US0_RX #2 PC10
EFM32 PIN GPIO NOTES/CONFLICTS/AVAILABILITY
------- -- ---- ----------------------------------------------
US0_RX #0 PE11 LCD_PE11, LCD_SEG7
US0_RX #1 PE6 LCD_PE6, LCD_COM2
US0_RX #2 PC10 UIF_SLIDER2
US0_TX #0 PE10
US0_TX #1 PE7
US0_TX #2 PC11
US0_TX #0 PE10 LCD_PE10, LCD_SEGG
US0_TX #1 PE7 LCD_PE7, LCD_COM3
US0_TX #2 PC11 UIF_SLIDER3
------- -- ----
US1_RX #0 PC1
US1_RX #1 PD1
US1_RX #0 PC1 UIF_LED1
US1_RX #1 PD1 Not connected on this board
US1_TX #0 PC0
US1_TX #1 PD0
US1_TX #0 PC0 UIF_LED0
US1_TX #1 PD0 Not connected on this board
------- -- ----
US2_RX #0 PC3
US2_RX #1 PB4
US2_RX #0 PC3 UIF_LED3
US2_RX #1 PB4 LCD_PB4, LCD_SEG21
US2_TX #0 PC2
US2_TX #1 PB3
US2_TX #0 PC2 UIF_LED2
US2_TX #1 PB3 LCD_PB3, LCD_SEG20
------- -- ----
U0_RX #1 PE1
U0_RX #2 PA4
U0_RX #1 PE1 **AVAILABLE at TP130** (if BC_EN is low, see below)
U0_RX #2 PA4 LCD_PA4, LCD_SEG17
U0_TX #0 PF6
U0_TX #1 PE0
U0_TX #2 PA3
U0_TX #3 PC14
U0_TX #0 PF6 LCD_PF6, LCD_SEG24
U0_TX #1 PE0 **AVAILABLE at TP129** (if BC_EN is low, see below)
U0_TX #2 PA3 LCD_PA3, LCD_SEG16
U0_TX #3 PC14 **AVAILABLE at TP117**
------- -- ----
LEU0_RX #0 PD5
LEU0_RX #1 PB14
LEU0_RX #2 PE15
LEU0_RX #0 PD5 **AVAILABLE at TP123 and EXP port pin 14**
LEU0_RX #1 PB14 CTRLMCU_SPI_MISO
LEU0_RX #2 PE15 LCD_PE15, LCD_SEG11
LEU0_TX #0 PD4
LEU0_TX #1 PB13
LEU0_TX #2 PE14
LEU0_TX #0 PD4 **AVAILABLE at TP122 and EXP port pin 12**
LEU0_TX #1 PB13 CTRLMCU_SPI_SCK
LEU0_TX #2 PE14 LCD_PE14, LCD_SEG10
------- -- ----
LEU1_RX #0 PC7
LEU1_RX #1 PA6
LEU1_RX #0 PC7 DEBUG_MCU_SW_ENABLE
LEU1_RX #1 PA6 DEBUG_TDI_IN
LEU1_TX #0 PC6
LEU1_TX #1 PA5
LEU1_TX #0 PC6 DEBUG_DH_SW_ENABLE
LEU1_TX #1 PA5 DEBUG_TMS_SWDIO_IN
------- -- ----
Default Serial Console
----------------------
UART0 is configured as the default serial console at 115200 8N1
on pins PE0 and PE1.
Communication through the Board Controller
------------------------------------------
The control MCU acts as a board controller (BC). There is a UART
connection between the EFM and the BC. The connection is made by
setting the BC_EN line high. The EFM can then use the BSP to send
commands to the BC. When BC_EN is low, BC_TX and BC_RX can be used
by other applications.
Configurations
==============
Each EFM32 Gecko Starter Kit configuration is maintained in a sub-director

36
configs/efm32-g8xx-stk/nsh/defconfig
View File

@ -20,7 +20,7 @@ CONFIG_WINDOWS_CYGWIN=y
#
# Build Configuration
#
# CONFIG_APPS_DIR="../apps"
#CONFIG_APPS_DIR="../apps"
CONFIG_BUILD_FLAT=y
# CONFIG_BUILD_2PASS is not set
@ -131,6 +131,22 @@ CONFIG_ARCH_CHIP_EFM32G890F128=y
CONFIG_EFM32_EFM32G=y
# CONFIG_EFM32_EFM32GG is not set
#
# EFM32 Peripheral Support
#
CONFIG_EFM32_HAVE_USART2=y
CONFIG_EFM32_HAVE_UART0=y
# CONFIG_EFM32_HAVE_UART1 is not set
CONFIG_EFM32_HAVE_LEUART1=y
CONFIG_EFM32_UART=y
# CONFIG_EFM32_USART0 is not set
# CONFIG_EFM32_USART1 is not set
# CONFIG_EFM32_USART2 is not set
CONFIG_EFM32_UART0=y
# CONFIG_EFM32_UART1 is not set
# CONFIG_EFM32_LEUART0 is not set
# CONFIG_EFM32_LEUART1 is not set
#
# Architecture Options
#
@ -347,7 +363,7 @@ CONFIG_SERIAL=y
CONFIG_DEV_LOWCONSOLE=y
# CONFIG_16550_UART is not set
# CONFIG_ARCH_HAVE_UART is not set
# CONFIG_ARCH_HAVE_UART0 is not set
CONFIG_ARCH_HAVE_UART0=y
# CONFIG_ARCH_HAVE_UART1 is not set
# CONFIG_ARCH_HAVE_UART2 is not set
# CONFIG_ARCH_HAVE_UART3 is not set
@ -371,7 +387,21 @@ CONFIG_DEV_LOWCONSOLE=y
#
# USART Configuration
#
# CONFIG_MCU_SERIAL is not set
CONFIG_MCU_SERIAL=y
CONFIG_UART0_SERIAL_CONSOLE=y
# CONFIG_NO_SERIAL_CONSOLE is not set
#
# UART0 Configuration
#
CONFIG_UART0_RXBUFSIZE=64
CONFIG_UART0_TXBUFSIZE=64
CONFIG_UART0_BAUD=115200
CONFIG_UART0_BITS=8
CONFIG_UART0_PARITY=0
CONFIG_UART0_2STOP=0
# CONFIG_UART0_IFLOWCONTROL is not set
# CONFIG_UART0_OFLOWCONTROL is not set
# CONFIG_SERIAL_IFLOWCONTROL is not set
# CONFIG_SERIAL_OFLOWCONTROL is not set
# CONFIG_USBDEV is not set