Correct several errors in STM32 serial port configuration
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3744 42af7a65-404d-4744-a932-0658087f49c3
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ChangeLog
11
ChangeLog
@ -1856,4 +1856,15 @@
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Storage Demo Board," Model DB-DP11215 (http://www.sureelectronics.net/goods.php?id=1168).
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This board features the MicroChip PIC32MX440F512H MCU. (Untested on initial
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check-in).
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* configs/stm3210e-eval/nsh2: Add another NSH configuration for the STM32 with
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some different properties.
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* CONFIG_NSH_CONDEV: Add a configuration option to allow using a different character
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device (such a a different UART) for the NSH interface. This allows, for example,
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debug output to come from the console device while using another device for NSH.
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There are some issues on initial check-in: NuttX doesn't have termios and the
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console device has special properties that make using NSH awkward. Examples:
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No CR-LF expansion, no character echoing, no command line editting.
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* arch/arm/src/stm32/stm32_lowputc.c and stm32_serial.c. Correct severl bugs
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involving serial port configuration. These bugs are only critical if you
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are trying to using multiple UARTs on STM32.
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@ -2155,6 +2155,12 @@ nsh>
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This is useful, for example, to separate the NSH command line from the system console
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when the system console is used to provide debug output.
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Default: <code>stdin</code> and <code>stdout</code> (probably "<code>/dev/console</code>")
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<ul><small>
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NOTE: When any other device other than <code>/dev/console</code> is used for a user interface,
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(1) linefeeds (<code>\n</code>) will not be expanded to carriage return / linefeeds (<code>\r\n</code>).
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You will need to configure your terminal program to account for this.
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And (2) input is not automatically echoed so you will have to turn local echo on.
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</small></ul>
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</td>
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<tr>
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<td valign="top"><b><code>CONFIG_NSH_TELNET</code></b></td>
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@ -162,9 +162,9 @@
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#define STM32_USARTDIV32 (STM32_APBCLOCK / (STM32_CONSOLE_BAUD >> 1))
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/* The mantissa is then usartdiv32 * 32:
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/* The mantissa is then usartdiv32 / 32:
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*
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* mantissa = 32 * usartdiv32
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* mantissa = usartdiv32 / 32/
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*
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* Eg. usartdiv32=1250, mantissa = 39
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*/
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@ -247,7 +247,7 @@ void stm32_lowsetup(void)
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uint32_t cr;
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#endif
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/* Enable the selected USARTs and configure GPIO pins need byed the
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/* Enable the selected USARTs and configure GPIO pins need by the
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* the selected USARTs. NOTE: The serial driver later depends on
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* this pin configuration -- whether or not a serial console is selected.
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*
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@ -425,8 +425,8 @@ static inline void up_disableusartint(struct up_dev_s *priv, uint16_t *ie)
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static int up_setup(struct uart_dev_s *dev)
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{
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struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
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#ifdef CONFIG_SUPPRESS_UART_CONFIG
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uint32_t uartdiv32;
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#ifndef CONFIG_SUPPRESS_UART_CONFIG
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uint32_t usartdiv32;
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uint32_t mantissa;
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uint32_t fraction;
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uint32_t brr;
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@ -483,7 +483,7 @@ static int up_setup(struct uart_dev_s *dev)
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/* Configure hardware flow control -- Not yet supported */
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up_serialout(priv, STM32_USART_CR1_OFFSET, regval);
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up_serialout(priv, STM32_USART_CR3_OFFSET, regval);
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/* Configure the USART Baud Rate. The baud rate for the receiver and
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* transmitter (Rx and Tx) are both set to the same value as programmed
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@ -521,7 +521,7 @@ static int up_setup(struct uart_dev_s *dev)
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up_serialout(priv, STM32_USART_CR1_OFFSET, regval);
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#endif
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/* Set up the cache interrupt enables value */
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/* Set up the cached interrupt enables value */
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priv->ie = 0;
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return OK;
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@ -430,13 +430,13 @@ Where <subdir> is one of the following:
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=========== ======================= ================================
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nsh nsh2
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=========== ======================= ================================
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Toolchain: NuttX buildroot for Codesourcery for Windows*
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Linux or Cygwin*,**
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Toolchain: NuttX buildroot for Codesourcery for Windows *
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Linux or Cygwin *,**
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----------- ----------------------- --------------------------------
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Loader: DfuSe DfuSe
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----------- ----------------------- --------------------------------
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Serial Debug output: USART1 Debug output: USART1
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Console: NSH output: USART1 NSH output: USART2
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Console: NSH output: USART1 NSH output: USART2 ***
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----------- ----------------------- --------------------------------
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I2C1 Disabled Enabled
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=========== ======================= ================================
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@ -445,7 +445,12 @@ Where <subdir> is one of the following:
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to set up the correct PATH variable for whichever toolchain you
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may use.
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** Since DfuSe is assumed, this configuration may only work under
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Cygwin.
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Cygwin without modification.
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*** When any other device other than /dev/console is used for a user
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interface, (1) linefeeds (\n) will not be expanded to carriage return
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/ linefeeds \r\n). You will need to configure your terminal program
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to account for this. And (2) input is not automatically echoed so
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you will have to turn local echo on.
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ostest:
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------
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@ -727,7 +727,7 @@ CONFIG_NSH_DISABLESCRIPT=n
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CONFIG_NSH_DISABLEBG=n
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CONFIG_NSH_ROMFSETC=n
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CONFIG_NSH_CONSOLE=y
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#CONFIG_NSH_CONDEV="/dev/ttyS1"
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CONFIG_NSH_CONDEV="/dev/ttyS1"
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CONFIG_NSH_TELNET=n
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CONFIG_NSH_ARCHINIT=y
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CONFIG_NSH_IOBUFFER_SIZE=512
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