BOARD_ConfigureNorFlash
Default mainpageat91libboardsat91sam9260-ekBOARD_ConfigureNorFlash
Description Source Call Graph
Start Line: 306
void BOARD_ConfigureNorFlash(unsigned char busWidth)
{
    // Configure SMC
    AT91C_BASE_SMC->SMC_SETUP0 = 0x00000002;
    AT91C_BASE_SMC->SMC_PULSE0 = 0x0A0A0A06;
    AT91C_BASE_SMC->SMC_CYCLE0 = 0x000A000A;
    AT91C_BASE_SMC->SMC_CTRL0  = (AT91C_SMC_READMODE
                                  | AT91C_SMC_WRITEMODE
                                  | AT91C_SMC_NWAITM_NWAIT_DISABLE
                                  | ((0x1 << 16) & AT91C_SMC_TDF));

    if (busWidth == 8) {
        AT91C_BASE_SMC->SMC_CTRL0 |= AT91C_SMC_DBW_WIDTH_EIGTH_BITS;
    }
    else if (busWidth == 16) {
        AT91C_BASE_SMC->SMC_CTRL0 |= AT91C_SMC_DBW_WIDTH_SIXTEEN_BITS;
    }
    else if (busWidth == 32) {
        AT91C_BASE_SMC->SMC_CTRL0 |= AT91C_SMC_DBW_WIDTH_THIRTY_TWO_BITS;
    }
}