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Fix USART description 

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2097 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2009-09-26 19:31:35 +00:00
parent 6bd27cc477
commit ee6b8953ba
1 changed files with 11 additions and 11 deletions
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22
configs/stm3210e-eval/README.txt
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@ -195,23 +195,23 @@ STM3210E-EVAL-specific Configuration Options
STM32F103Z specific device driver settings
CONFIG_UARTn_SERIAL_CONSOLE - selects the UARTn for the
CONFIG_USARTn_SERIAL_CONSOLE - selects the UARTn for the
console and ttys0 (default is the UART0).
CONFIG_UARTn_RXBUFSIZE - Characters are buffered as received.
CONFIG_USARTn_RXBUFSIZE - Characters are buffered as received.
This specific the size of the receive buffer
CONFIG_UARTn_TXBUFSIZE - Characters are buffered before
CONFIG_USARTn_TXBUFSIZE - Characters are buffered before
being sent. This specific the size of the transmit buffer
CONFIG_UARTn_BAUD - The configure BAUD of the UART. Must be
CONFIG_UARTn_BITS - The number of bits. Must be either 7 or 8.
CONFIG_UARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
CONFIG_UARTn_2STOP - Two stop bits
CONFIG_USARTn_BAUD - The configure BAUD of the UART. Must be
CONFIG_USARTn_BITS - The number of bits. Must be either 7 or 8.
CONFIG_USARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
CONFIG_USARTn_2STOP - Two stop bits
CONFIG_SSI0_DISABLE - Select to disable support for SSI0
CONFIG_SSI1_DISABLE - Select to disable support for SSI1
CONFIG_SSI_POLLWAIT - Select to disable interrupt driven SSI support.
CONFIG_SPI1_DISABLE - Select to disable support for SPI1
CONFIG_SPI2_DISABLE - Select to disable support for SPI2
CONFIG_SPI_POLLWAIT - Select to disable interrupt driven SPI support.
Poll-waiting is recommended if the interrupt rate would be to
high in the interrupt driven case.
CONFIG_SSI_TXLIMIT - Write this many words to the Tx FIFO before
CONFIG_SPI_TXLIMIT - Write this many words to the Tx FIFO before
emptying the Rx FIFO. If the SPI frequency is high and this
value is large, then larger values of this setting may cause
Rx FIFO overrun errors. Default: half of the Tx FIFO size (4).