EVMDM642 PCI Module

A PCI bus identifies each PCI card by its configuration registers. When queried for a configuration register, the EVMDM642 can return a hardcoded set of configuration registers or a set of configuration values stored in an on-board configuration EEPROM (a different chip than the I2C EEPROM).

There are 13 configuration registers followed by a checksum. For more information on these registers please see the TMS320C6000 Peripherals Reference Guide.

Description
Sends a 16-bit mode register value to the PCI.

Required Headers
evmdm642.h
evmdm642_pci.h

Required Libraries
evmdm642bsl.lib

Function Prototype
Int16 EVMDM642_PCI_config(Uint16 *config)

Parameters
config – address of a 13 element Uint16 array containing register values

Return Value
0 - success
1 - fail

Example

    Uint16 configregs[13] = {
        0x104c,  // 0
        0x9065,  // 1
        0x0000,  // 2
        0xff00,  // 3
        0x1652,  // 4
        0x0642,  // 5
        0x0000,  // 6
        0x0000,  // 7
        0x0000,  // 8
        0x0000,  // 9
        0x0000,  // 10
        0x0000,  // 11
        0x0000   // 12
    };

    /* Set the PCI configuration registers in EEPROM */
    EVMDM642_PCI_config(configregs);