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Fix LM4F120 LaunchPad serial output. Add support for all 7 LM4F120 UARTs

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5782 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2013-03-24 20:40:40 +00:00
parent ee4c73bcd5
commit 861170bc00
2 changed files with 52 additions and 0 deletions
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45
configs/lm4f120-launchpad/README.txt
View File

@ -15,6 +15,7 @@ Contents
NuttX OABI "buildroot" Toolchain
NXFLAT Toolchain
LEDs
Serial Console
USB Device Controller Functions
Using OpenOCD and GDB with an FT2232 JTAG emulator
LM4F120 LaunchPad Configuration Options
@ -466,6 +467,50 @@ LEDs
- In the event of a fatal crash, the BLUE and GREEN components will be
extinguished and the RED component will FLASH at a 2Hz rate.
Serial Console
^^^^^^^^^^^^^^
By default, all configurations use UART0 which connects to the USB VCOM
on the DEBUG port on the LM4F120 LaunchPad:
UART0 RX - PA.0
UART0 TX - PA.1
However, if you use an external RS232 driver, then other options are
available. UART1 has option pin settings and flow control capabilities
that are not available with the other UARTS::
UART1 RX - PB.0 or PC.4 (Need disambiguation in board.h)
UART1 TX - PB.1 or PC.5 (" " " " "" " ")
UART1_RTS - PF.0 or PC.4
UART1_CTS - PF.1 or PC.5
NOTE: board.h currently selects PB.0, PB.1, PF.0 and PF.1 for UART1, but
that can be changed by editting board.h
UART2-5, 7 are also available, UART2 is not recommended because it shares
some pin usage with USB device mode. UART6 is not available because its
only RX/TX pin options are dedicated to USB support.
UART2 RX - PD.6
UART2 TX - PD.7 (Also used for USB VBUS detection)
UART3 RX - PC.6
UART3 TX - PC.7
UART4 RX - PC.4
UART4 TX - PC.5
UART5 RX - PE.4
UART5 TX - PE.5
UART6 RX - PD.4, Not available. Dedicated for USB_DM
UART6 TX - PD.5, Not available. Dedicated for USB_DP
UART7 RX - PE.0
UART7 TX - PE.1
USB Device Controller Functions
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

7
configs/lm4f120-launchpad/include/board.h
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@ -158,6 +158,13 @@
#define BUTTON_SW1_BIT (1 << BUTTON_SW1)
#define BUTTON_SW2_BIT (1 << BUTTON_SW2)
/* Pin Multiplexing Disambiguation **************************************************/
#define GPIO_UART1_CTS GPIO_UART1_CTS_1
#define GPIO_UART1_RTS GPIO_UART1_RTS_1
#define GPIO_UART1_RX GPIO_UART1_RX_1
#define GPIO_UART1_TX GPIO_UART1_TX_1
/************************************************************************************
* Public Function Prototypes
************************************************************************************/