sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Add support for a serial console on UART1 for the Open1788 board

Browse Source
This commit is contained in:
Gregory Nutt 2013-04-07 15:18:06 -06:00
parent 2a58da6eb8
commit f6e731ad50
3 changed files with 170 additions and 108 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
configs/open1788/README.txt
View File

@ -11,6 +11,7 @@ CONTENTS
o LEDs
o Buttons
o FPU
o Serial Console
o Using OpenOCD with the Olimex ARM-USB-OCD
o Loading Code with the ISP Board
o Configuration
@ -154,6 +155,44 @@ See the section above on Toolchains, NOTE 2, for explanations for some of
the configuration settings. Some of the usual settings are just not supported
by the "Lite" version of the Atollic toolchain.
Serial Console
==============
By Default, UART0 is used as the serial console in all configurations. This
may be connected to your computer via an external RS-232 driver or via the
WaveShare USB ISP/VCOM module.
As an option, UART1 can also be used for the serial console by reconfiguring
as follows:
System Type:
CONFIG_LPC17_UART0=n : Disable UART0 if it is no longer used
CONFIG_LPC17_UART1=y : Enable UART1
Drivers:
CONFIG_UART1_SERIAL_CONSOLE=y : Setup up the UART1 configuration
CONFIG_UART1_RXBUFSIZE=256
CONFIG_UART1_TXBUFSIZE=256
CONFIG_UART1_BAUD=115200
CONFIG_UART1_BITS=8
CONFIG_UART1_PARITY=0
CONFIG_UART1_2STOP=0
In this configuration using UART1, it is necessary to disable LED support
on the board. That is because UART1 RXD is set for pin p0.16, but so it
LED2. If you do not disable LED support then no incoming serial data will
be recevied.
Common Board Options
CONFIG_ARCH_LEDS=n : Disable LED support
You should also remove the LED2 jumper so that the RXD input does not
attempt to drive LED2 as well (this this does not seem to interfere with
data receipt).
NOTE: If you intend to use LEDs, then you might want to redesign some of
the LED logic in the src/ subdirectory so that it does not use LED2.
Using OpenOCD with the Olimex ARM-USB-OCD
=========================================

26
configs/open1788/include/board.h
View File

@ -219,7 +219,7 @@
* any way. The following definitions are used to access individual LEDs.
*
* LED1 -- Connected to P1[14]
* LED2 -- Connected to P0[16]
* LED2 -- Connected to P0[16] (shared with UART1 RXD)
* LED3 -- Connected to P1[13]
* LED4 -- Connected to P4[27]
*
@ -310,6 +310,30 @@
#define GPIO_UART0_TXD GPIO_UART0_TXD_2
#define GPIO_UART0_RXD GPIO_UART0_RXD_2
/* UART1:
*
* All pin options are controlled by older briges on the bottom of the board. There
* are the default settings on my board as it came out of the box:
*
* RTS --- Connected to P0[22]
* RI --- Connected to P0[21]
* DSR --- Connected to P0[19]
* DCD --- Connected to P0[18]
* CTS --- Connected to P0[17]
* DTR --- Connected to P0[20]
* TXD --- Connected to P0[15]
* RXD --- Connected to P0[16] (Shared with LED2)
*/
#define GPIO_UART1_RTS GPIO_UART1_RTS_2
#define GPIO_UART1_RI GPIO_UART1_RI_1
#define GPIO_UART1_DSR GPIO_UART1_DSR_1
#define GPIO_UART1_DCD GPIO_UART1_DCD_1
#define GPIO_UART1_CTS GPIO_UART1_CTS_1
#define GPIO_UART1_DTR GPIO_UART1_DTR_1
#define GPIO_UART1_TXD GPIO_UART1_TXD_1
#define GPIO_UART1_RXD GPIO_UART1_RXD_1
/* MCI-SDIO:
*
* D0 --- Connected to P1[6]

1
configs/open1788/src/open1788.h
View File

@ -132,7 +132,6 @@
* Pins are configured as floating because there are pullups on the module.
*/
#define GPIO_TC_PEN (GPIO_INPUT | GPIO_FLOAT | GPIO_PORT2 | GPIO_PIN15)
#define GPIO_TC_PENIRQ (GPIO_INTBOTH | GPIO_FLOAT | GPIO_PORT2 | GPIO_PIN15)
#define GPIO_TC_BUSY (GPIO_INPUT | GPIO_FLOAT | GPIO_PORT2 | GPIO_PIN14)
#define GPIO_TC_CS (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT1 | GPIO_PIN8)