16 | Ethernet controller BDMA Tx Interrupt17 | Ethernet controller BDMA Rx Interrupt18 | Ethernet controller MAC Tx Interrupt19 | Ethernet controller MAC Rx Interrupt20 | IIC -Bus Interrupt.TE.SS "Ethernet Port"The BSP configures itself to use the KS32C50100 Ethernet Controller as its Ethernet port.  The name `sng' should be specified as the boot deviceto the boot ROMs when booting VxWorks via Ethernet. This BSP is configured to use an END-style network driver..SS " NVRAM Support" The booting parameters (otherwise known as the boot line) are automatically saved in NVRAM after the user configures startup information the first time the boot ROM is executed.  This allows unattended booting during future power off/on cycles..SS "Changing the Ethernet Address"The SBCARM7 boards do not have unique Ethernet hardware addresses. Ifthe boards are to be connected to a network, unique hardware addressesmust be provided.  Thus, the user must provide a suitable 6-byteEthernet address for each board used on a network.  If the board usesa 'bootrom' type image and not 'visionWare' image to boot, the defaultEthernet address is specified in the 'wrSbcArm7.h' file in thefollowing line:.CS    #define ETHERNET_MAC_ADRS { 0x00,  0xA0,  0x88, 0x88, 0x88, 0x00 }.CEThis address is modified during initialization by DIP-switch settingson the 'user switches', 'S4'.  The least significant byte (the 6th byteusing network order) takes on the 8-bit value of 'S4' where any 'open'position becomes a binary '0' and any 'closed' position becomes abinary '1'.To change any other byte of the MAC address, the ETHERNET_MAC_ADRSmacro must be modified, a new boot ROM must be built and burned intoflash, and a new VxWorks image must be built.Check with your system administrator to ensure that you have a uniqueMAC address for your site..SS "CPU Speed"Two types of clock inputs are used on the board.  The first, mainclock, is a 50 MHz 1:1 Oscillator plugged into the UX1 socket to drivethe CPU clock at 50 MHz.  The second is a 16 MHz 1:1 Oscillator used forthe HDLC channel that is plugged into the UX4 socket.  By default theUX3 and UX2 sockets are empty.  These sockets are used for the CAN busOscillator..SS "Serial Configuration"SMC1 is configured as a UART device with 8 data bits, 1 stop bit,hardware handshaking, and parity disabled..SS "Serial Connections"COM1 and COM2 may be connected via a simple 3 wire connection usingstandard phone jacks.    pin 1 = RIN   pin 2 = TOUT   pin 3 = NC   pin 4 = GNDAlternatively, COM1 may be connected through a standard male DB9connector..SS "Network Configuration"The Ethernet is configured as a 100\10 Mb/s Ethernet port.SS "ROM Considerations"Go to the 'Build' menu in Tornado II and choose 'Build Boot Rom...'.In the dialog box, choose 'wrSbcArm7' on the left side and 'bootrom' onthe right side.  Use the visionPROBE II or visionICE II to convert the'bootrom' image to a 'bootrom.bin' image and to program the flash.  Makesure the file is loaded into flash at the starting address 0x0..SS "Delivered Objects"Does not apply..SS "Make Targets"Only 'bootrom_uncmp', 'bootrom', and 'vxWorks' have been tested..SS "Unix Distribution"At the current time, Wind River only supplies a PC version of this BSP..SH "SPECIAL CONSIDERATIONS"This section describes miscellaneous information about this BSP..SS "Known Problems"The following items are known problems for this release: .IP " " There appears to be a hardware bug in the Samsung KS32C50100.  Theinstruction 'LDR rx, [ry]' will cause a 'data abort' to occur when'ry' is not aligned on a word boundary.  According to thespecifications, neither a 'data abort', nor any other exception, should occur if the memory referenced by 'ry' is in a legal range, regardless of alignment..LP.IP " "As a consequence of this bug, the standard checksum function used inother ARMARCH4 processors will fail.  The file sbcCksum.c is providedin the 'wrSbcArm7' BSP directory as a workaround to this problem..LP.SH "BOARD LAYOUT"The diagrams below show the relevant jumpers for VxWorks configuration.Note: When changing any DIP switches, make sure the switch is leftfully in the 'on' position or in the 'off' position.  If a switch isleft at an intermediate state, the results are unpredictable..bS     ____   ____   _|JP25|_|JP26|______________________________________________________________  | |____| |____| |JP3 | |JP2 | |                                              | ---               ----   ----  |                                              ||   |   ---           ___       |                   LCD                        ||   |  |SW2|         |   |      |                                              ||P1 |   ---          |   |      |                                              ||   |  ________      |96 |      |______________________________________________||   |  |||||||||D5   |   |      __  ___________                                ||___|  --------      |PIN|     |  ||    J3     |                               |  |     --------     |   |     |J2||___________|       -- JP4                  |  |    |   S4   |    |DIN|     |  | ___________    ___                      ___| ---    --------     |   |     |  ||        ARM|  |UX1|                    |JP ||   |   ___   ___    |Exp|     |__||SAMSUNG    |  |___|                    |22 ||   |  |SW3| |UX3|   |   |      __ |S3C4510X01 |   ___________             |___||P2 |  |___| |___|   |   |     |  ||           |  |     S3    |                ||   |    ___         |JP |     |J4||___________|  |___________|                ||   |   |UX4|        |18 |     |  |             _  ___________              ___||___|   |___|        |___|     |  |JP17    JP14|S||     S5    |            |   |  |    ___                     |__|||| ||| ||| |W||___________|            |JP1|  |   |UX2|                            JP16    |1|                         |___| ---  |___|                                    |_|                             ||   |                                                         Wind River H.S.I ||COM|                JP12                                         SBC ARM7     || 1 |                |||||                        JP5                          ||___|           JP11       JP23     JP24          ||||                         |  |             |||||      ||||     ||||                              __       |  |     ____    ____      ____   ____    ____      S2  __   __   __  |  |      |  |____|COM1|__|COM2|____|CAN1|_|CAN2|__|Ethe|_____||_|D4|_|D3|_|D2|_|S1|______|       |____|  |____|    |____| |____|  |____|     || |__| |__| |__| |__|   .bEKey:.TSexpand;1 1 .SW1 - Ethernet Configuration Switch Box_SW1-1 | TXSLEW0 SW1-2 | TXSLEW1SW1-3 | The LXT972 advertises pause capabilities.SW1-4 | The LXT972 is in PWRDWN mode.SW1-5 | The MDIO is disabled.SW1-6 | ON Sets the device address (ON=LOW), (OFF=HIGH).TE.TSexpand;1 1 .SW2 - RS232 / RS485 Select_SW2-1 | HDLC Port A, When on, the nRTSA controls the RS485 transmit enable.SW2-2 | HDLC Port A, When on, the CPU port pin P5 controls the RS485 transmit enable.SW2-3 | HDLC Port B, When on, the nRTSB controls the RS485 transmit enableSW2-4 | HDLC Port B, When on, the CPU Port pin P6 controls the RS485 transmit enable.SW2-5 | HDLC Port A, Signal SELA ON for the RS232 drivers and OFF for the RS485 drivers.SW2-6 | HDLC Port B, Signal SELB ON for the RS232 drivers and OFF for the RS485 drivers..TE.TSexpand;1 1 .SW3 - Switch Descriptions_SW3-1 | When on, the incoming receive clock is used as HDLC Port A (RXCA)SW3-2 | When on, the external oscillator UX3 is used as RXCASW3-3 | When on, the external oscillator UX3 is used as a transmit clock on        | HDLC Port A (TXCA)SW3-4 | When on, the external oscillator UX3 is used as the receive clock on      | HDLC Port B (RXCB)SW3-5 | When on, external oscillator UX3 is used as a transmit clock on HDLC      | Port B (TXCB)SW3-6 | When on, the incoming receive clock is used as HDLC Port B (RXCB)..TE.TSexpand;1 1 .S3 - Chip Select Isolation Switch Box_S3-1 | nECS1 User I/O, 8 Switch Bank, 8 LEDs, LCD DisplayS3-2 | nECS2 CAN 1 Controller ICS3-3 | nECS3 CAN2 Controller ICS3-4 | nRCS1 Mailbox ConnectorS3-5 | nRCS0 2 MB Boot FlashS3-6 | nRCS0 16 MB Boot FlashS3-7 | nRCS2 8 Kb x 8 EEPROMS3-8 | nRAS0 16 MB SDRAM (nSDRAM_CS).TE.TSexpand;S4 - User Switches_The user switches are used to set a unique MAC address..TE.TSexpand;1 1 .S5 - CPU Configuration Switch Box_S5-1 | TMODE/PLL MF.  The functionality depends on the position of the CLKSEL switch.       | If the CLKSEL Switch is CLOSED then CLOSED=Normal operating mode and  OPEN=Test      | Mode.  But if the CLKSEL Switch is CLOSED then CLOSED = PLL MF OF 5 (5x), and       | OPEN=PLL MF 0F 6.6(6.6X).S5-2 | nP4RESET OPEN When enabled, a low on CPU Port bit P4 will     | reset both CAN interfaces and the ethernet chip.S5-3 | EN_nTRST When CLOSED, a power on reset will issue a JTAG TRST.S5-4 | BOSIZE0S5-5 | BOSIZE1S5-6 | LITTLE When set to CLOSED, Little-endian is enabled. When set to OPEN,      | Big-endian is enabled..TE.TSexpand;1 1 .Other Connections_P1 | HDLC Ports A (RS232 Drivers)P2 | HDLC Ports B (RS232 Drivers)S1 | Power/Reset switchS2 | Interrupt 0 switchD2 | Power LEDD3-4 | D3 and D4 are amber LEDs that reflect what is on port bits 0 and 1,   | two general purpose I/O pins on the processor. If you write a 0 to   | either of these pins, the LEDs will turn on.D5 | User LED'sJ2 | Mictor ConnectorsJ3 | Mictor ConnectorsJ4 | Mictor ConnectorsJP1 | +5V/+12 PowerJP2 | 14-Pin JTAG Debug InterfaceJP3 | Wind River Mailbox ConnectorJP4 | CHN_JTAGJP11 | 10-Pin IDE Connector on UART1JP12 | IRDA JP14 | Ethernet LED Configuration Bits LED/CFG1JP16 | Ethernet LED Configuration Bits LED/CFG2JP17 | Ethernet LED Configuration Bits LED/CFG3JP18 | 96-Pin DIN Expansion ConnectorJP22 | +5V/+12V PowerJP23 | CAN1 Interfaces - Jumper OptionsJP24 | CAN2 Interfaces - Jumper OptionsJP25 | HDLC Ports A (RS485 Drivers)JP26 | HDLC Ports B (RS485 Drivers)UX1 | CPU OscillatorUX2 | CAN OscillatorUX3 | CAN OscillatorUX4 | HDLC Oscillator.TE.SH SEE ALSO.tG "Getting Started," .pG "Configuration.".SH "BIBLIOGRAPHY".iB "Wind River HSI ARM7 Reference Design" .iB "Advanced RISC Machines, ARM 7TDMI Data Sheet" .iB "Samsung KS32C50100 User's Manual" .iB "Samsung KS32C50100/5000A Application Notes"