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Add low level UART support for M16C

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1508 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2009-02-15 23:28:10 +00:00
parent b4ef7b4935
commit a2cf11bd79
2 changed files with 57 additions and 26 deletions
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68
configs/skp16c26/include/board.h
View File

@ -49,6 +49,24 @@
* Definitions
************************************************************************************/
/* User configuration checks ********************************************************/
/* According to SKP16C26 documention, "SIO/UART1 pins are used for communication
* between the SKP16C26 board kernel and KD30 Debugger through the ICD. Do not
* connect these pins to any other circuit, as UART1 cannot be used in the user
* program. For details, please see ICD (RTA-FoUSB-MON) User Manual on Target M16C
* ROM Monitor Resources or related ICD application notes."
*
* However, the schematic appears to show that SIO/UART2 is actual connection.
* To be safe, we will error out on either selection:
*/
#if !defined(CONFIG_UART1_DISABLE) || !defined(CONFIG_UART2_DISABLE)
# error "UART1/2 should not be used on SKP16C26"
#endif
/* Hardware defintitions ************************************************************/
/* Xin Freq */
#define M16C_XIN_FREQ 20000000 /* 20MHz */
@ -72,6 +90,8 @@
#define YLW_DDR pd7_4
#define GRN_DDR pd7_2
/* Interrupt Priority Levels ********************************************************/
/* IPL settings */
#define M16C_DEFAULT_IPL 0 /* Default M16C Interrupt priority level */
@ -81,30 +101,30 @@
* value of 5 will be used for any unspecified values
*/
#undef M16C_INT3_PRIO /* INT3 interrupt priority */
#undef M16C_INT5_PRIO /* INT5 interrupt priority */
#undef M16C_INT4_PRIO /* INT4 interrupt priority */
#undef M16C_BCN_PRIO /* Bus collision detection interrupt priority */
#undef M16C_DM0_PRIO /* DMA0 interrupt priority */
#undef M16C_DM1_PRIO /* DMA1 interrupt priority */
#undef M16C_KUP_PRIO /* Key input interrupt priority */
#undef M16C_AD_PRIO /* A-D conversion interrupt priority */
#undef M16C_S2T_PRIO /* UART2 transmit interrupt priority */
#undef M16C_S2R_PRIO /* UART2 receive interrupt priority */
#undef M16C_S0T_PRIO /* UART0 transmit interrupt priority */
#undef M16C_S0R_PRIO /* UART0 receive interrupt priority */
#undef M16C_S1T_PRIO /* UART1 transmit interrupt priority */
#undef M16C_S1R_PRIO /* UART1 receive interrupt priority */
#define M16C_TA0_PRIO 5 /* Timer A0 interrupt priority */
#undef M16C_TA1_PRIO /* Timer A1 interrupt priority */
#undef M16C_TA2_PRIO /* Timer A2 interrupt priority */
#undef M16C_TA3_PRIO /* Timer A3 interrupt priority */
#undef M16C_TA4_PRIO /* Timer A4 interrupt priority */
#undef M16C_TB0_PRIO /* Timer B0 interrupt priority */
#undef M16C_TB1_PRIO /* Timer B1 interrupt priority */
#undef M16C_TB2_PRIO /* Timer B2 interrupt priority */
#undef M16C_INT0_PRIO /* INT0 interrupt priority */
#undef M16C_INT1_PRIO /* INT1 interrupt priority */
#undef M16C_INT3_PRIO /* INT3 interrupt priority */
#undef M16C_INT5_PRIO /* INT5 interrupt priority */
#undef M16C_INT4_PRIO /* INT4 interrupt priority */
#undef M16C_BCN_PRIO /* Bus collision detection interrupt priority */
#undef M16C_DM0_PRIO /* DMA0 interrupt priority */
#undef M16C_DM1_PRIO /* DMA1 interrupt priority */
#undef M16C_KUP_PRIO /* Key input interrupt priority */
#undef M16C_AD_PRIO /* A-D conversion interrupt priority */
#undef M16C_S2T_PRIO /* UART2 transmit interrupt priority */
#undef M16C_S2R_PRIO /* UART2 receive interrupt priority */
#undef M16C_S0T_PRIO /* UART0 transmit interrupt priority */
#undef M16C_S0R_PRIO /* UART0 receive interrupt priority */
#undef M16C_S1T_PRIO /* UART1 transmit interrupt priority */
#undef M16C_S1R_PRIO /* UART1 receive interrupt priority */
#define M16C_TA0_PRIO 5 /* Timer A0 interrupt priority */
#undef M16C_TA1_PRIO /* Timer A1 interrupt priority */
#undef M16C_TA2_PRIO /* Timer A2 interrupt priority */
#undef M16C_TA3_PRIO /* Timer A3 interrupt priority */
#undef M16C_TA4_PRIO /* Timer A4 interrupt priority */
#undef M16C_TB0_PRIO /* Timer B0 interrupt priority */
#undef M16C_TB1_PRIO /* Timer B1 interrupt priority */
#undef M16C_TB2_PRIO /* Timer B2 interrupt priority */
#undef M16C_INT0_PRIO /* INT0 interrupt priority */
#undef M16C_INT1_PRIO /* INT1 interrupt priority */
/********************************************************************************/
/* Macro Definitions */

15
configs/skp16c26/ostest/defconfig
View File

@ -78,6 +78,7 @@ CONFIG_ARCH_STACKDUMP=y
#
# M16C specific device driver settings
#
# CONFIG_UARTn_DISABLE - Disables all support for UARTn.
# CONFIG_UARTn_SERIAL_CONSOLE - selects the UARTn for the
# console and ttys0 (default is the UART0).
# CONFIG_UARTn_RXBUFSIZE - Characters are buffered as received.
@ -89,20 +90,30 @@ CONFIG_ARCH_STACKDUMP=y
# CONFIG_UARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
# CONFIG_UARTn_2STOP - Two stop bits
#
CONFIG_UART0_DISABLE=n
CONFIG_UART1_DISABLE=y
CONFIG_UART2_DISABLE=y
CONFIG_UART0_SERIAL_CONSOLE=y
CONFIG_UART1_SERIAL_CONSOLE=n
CONFIG_UART2_SERIAL_CONSOLE=n
CONFIG_UART0_TXBUFSIZE=64
CONFIG_UART1_TXBUFSIZE=64
CONFIG_UART2_TXBUFSIZE=64
CONFIG_UART0_RXBUFSIZE=64
CONFIG_UART1_RXBUFSIZE=64
CONFIG_UART0_BAUD=9600
CONFIG_UART1_BAUD=9600
CONFIG_UART2_RXBUFSIZE=64
CONFIG_UART0_BAUD=19200
CONFIG_UART1_BAUD=19200
CONFIG_UART2_BAUD=19200
CONFIG_UART0_BITS=8
CONFIG_UART1_BITS=8
CONFIG_UART2_BITS=8
CONFIG_UART0_PARITY=0
CONFIG_UART1_PARITY=0
CONFIG_UART2_PARITY=0
CONFIG_UART0_2STOP=0
CONFIG_UART1_2STOP=0
CONFIG_UART2_2STOP=0
#
# General build options