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Add apps/poweroff lpc17 hardware handshake

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3380 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2011-03-14 20:50:46 +00:00
parent 354f9054c1
commit 4d3ee9f15e
7 changed files with 70 additions and 9 deletions
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5
ChangeLog
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@ -1562,8 +1562,11 @@
packet buffers. This capability was needed by the SLIP driver.
* drivers/net/slip.c -- Several corrections and some re-design of
of the driver.
* apps/ChangeLog.txt -- the apps/ directory now has its own ChangeLog.
* configs/vsn:
- IDLE LED blinking fix
- Added board power off function
* arch/arm/src/stm32/stm32_gpio.c and stm32_internal.h -- Fixe
* arch/arm/src/stm32/stm32_gpio.c and stm32_internal.h -- Fixed
PullUp/Down Input Configuration.
* arch/arm/src/lpc17xx/lpc17_serial.h -- Now supports Auto-RTS and
Auto-CTS modes. This is needed to support SLIP.

24
Documentation/NuttX.html
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@ -8,7 +8,7 @@
<tr align="center" bgcolor="#e4e4e4">
<td>
<h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1>
<p>Last Updated: March 13, 2011</p>
<p>Last Updated: March 14, 2011</p>
</td>
</tr>
</table>
@ -2146,6 +2146,11 @@ nuttx-5.19 2011-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
* configs/olimex-lpc1766stk/slip-httpd - An example that uses SLIP to
provide a serial-port based THTTPD web server.
apps-5.19 2011-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
* Initial version of the apps/ directory was released as contributed by
Uros Platise.
pascal-2.0 2009-12-21 Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
* Updated to use standard C99 types in stdint.h and
@ -2184,6 +2189,23 @@ nuttx-5.20 2011-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
packet buffers. This capability was needed by the SLIP driver.
* drivers/net/slip.c -- Several corrections and some re-design of
of the driver.
* apps/ChangeLog.txt -- the apps/ directory now has its own ChangeLog.
* configs/vsn:
- IDLE LED blinking fix
- Added board power off function
* arch/arm/src/stm32/stm32_gpio.c and stm32_internal.h -- Fixed
PullUp/Down Input Configuration.
* arch/arm/src/lpc17xx/lpc17_serial.h -- Now supports Auto-RTS and
Auto-CTS modes. This is needed to support SLIP.
apps-5.20 2011-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
* README.txt -- README cosmetics
* hello/ -- hello world minor changes
* Makefile -- Makefile cosmetics (I am slowly adding the Darjeeling JVM)
* Make.defs -- New file adds common make definitions for applications.
* hello/Makefile -- Now uses new Make.defs definitions. Added README.txt.
* apps/poweroff -- New application to turn off board power.
pascal-2.1 2011-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;

6
TODO
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@ -311,7 +311,11 @@ o Network (net/, drivers/net)
Description: The SLIP driver (drivers/net/slip.c) has had only the most superficial
testing. The main issue is the I haven't yet gotten a dual UART Linux
configuration that supports SLIP (I need one UART for SLIP and one for
the serial debug console).
the serial debug console). A second issue is that SLIP requires
hardware handshake and that has not been implemented in the UART
drivers on most platforms. It might be possible to use a special
cable to bypass the handshaking (but which may also result in data
overrun errors).
Status: Open
Priority: Medium

16
arch/arm/src/lpc17xx/lpc17_serial.c
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@ -664,13 +664,15 @@ static inline void lpc17_uart1config(uint32_t clkdiv)
lpc17_configgpio(GPIO_UART1_TXD);
lpc17_configgpio(GPIO_UART1_RXD);
#ifdef CONFIG_UART0_FLOWCONTROL
#ifdef CONFIG_UART1_FLOWCONTROL
lpc17_configgpio(GPIO_UART1_CTS);
lpc17_configgpio(GPIO_UART1_RTS);
lpc17_configgpio(GPIO_UART1_DCD);
lpc17_configgpio(GPIO_UART1_DSR);
lpc17_configgpio(GPIO_UART1_DTR);
#ifdef CONFIG_UART1_RINGINDICATOR
lpc17_configgpio(GPIO_UART1_RI);
lpc17_configgpio(GPIO_UART1_RTS);
#endif
#endif
irqrestore(flags);
};
@ -849,6 +851,16 @@ static int up_setup(struct uart_dev_s *dev)
up_serialout(priv, LPC17_UART_FCR_OFFSET,
(UART_FCR_RXTRIGGER_8|UART_FCR_TXRST|UART_FCR_RXRST|UART_FCR_FIFOEN));
/* Enable Auto-RTS and Auto-CS Flow Control in the Modem Control Register */
#ifdef CONFIG_UART1_FLOWCONTROL
if (priv->uartbase == LPC17_UART1_BASE)
{
up_serialout(priv, LPC17_UART_MCR_OFFSET, (UART_MCR_RTSEN|UART_MCR_CTSEN));
}
#endif
#endif
return OK;
}

9
arch/arm/src/lpc17xx/lpc17_serial.h
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@ -92,6 +92,15 @@
# undef HAVE_CONSOLE
#endif
/* Check UART flow control (Only supported by UART1) */
# undef CONFIG_UART0_FLOWCONTROL
# undef CONFIG_UART2_FLOWCONTROL
# undef CONFIG_UART3_FLOWCONTROL
#ifndef CONFIG_LPC17_UART1
# undef CONFIG_UART1_FLOWCONTROL
#endif
/* We cannot allow the DLM/DLL divisor to become to small or will will lose too
* much accuracy. This following is a "fudge factor" that represents the minimum
* value of the divisor that we will permit.

9
configs/olimex-lpc1766stk/README.txt
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@ -824,8 +824,17 @@ Where <subdir> is one of the following:
$ ifconfig sl0 10.0.0.2/24 up
Or maybe,
$ ifconfig sl0 10.0.0.1 pointopoint 10.0.0.2 up
$ route add 10.0.0.2 dev sl0
Assuming the SLIP is attached to device sl0.
5. For monitoring/debugging traffic:
$ tcpdump -n -nn -i sl0 -x -X -s 1500
thttpd:
This builds the THTTPD web server example using the THTTPD and
the examples/thttpd application.

2
configs/olimex-lpc1766stk/slip-httpd/defconfig
View File

@ -152,6 +152,8 @@ CONFIG_UART1_SERIAL_CONSOLE=n
CONFIG_UART2_SERIAL_CONSOLE=n
CONFIG_UART3_SERIAL_CONSOLE=n
CONFIG_UART1_FLOWCONTROL=y
CONFIG_UART0_TXBUFSIZE=256
CONFIG_UART1_TXBUFSIZE=256
CONFIG_UART2_TXBUFSIZE=256