TMS570LC4357: F021 ECC broken

Hi：

    I have met the ECC broken error. In my project, we use .ld file as link file instead of .cmd. In this case,  some syntax error occurd when I add these code below:

    ECC_VEC  (R) : origin=(0xf0400000 + (start(VECTORS) >> 3))
                   length=(size(VECTORS) >> 3)
                   ECC={algorithm=algoL2R5F021, input_range=VECTORS}
                   
    ECC {
    algoL2R5F021 : address_mask = 0xfffffff8 /* Address Bits 31:3 */
                   hamming_mask = R4         /* Use R4/R5 build in Mask */
                   parity_mask  = 0x0c       /* Set which ECC bits are Even and Odd parity */
                   mirroring    = F021       /* RM57Lx and TMS570LCx are build in F021 */
}

   So do you have .ld file example of ECC?