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Question on AM1810_DP

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Hi Here is a question about AM1810 Evaluation Module.

We use DPSlave_EVAL from am181x_profibus_dpslave_app-04.01.00.00 to test.
GSD: PRU_0CDA.GSD from am181x_profibus_dpslave_app-04.01.00.00.
The function "user_dp_init(void) " in am181x_profibus_dpslave_app\src\dp_user.c:
  • IDENT_NR_H=0x0C   if we change the value, it cannot work.
  •  IDENT_NR_L =0xDA  if we change the value, it neither work.
    ident_number[0] = IDENT_NR_H;
    ident_number[1] = IDENT_NR_L;
    init_dp(sizeof(myCfg1), ADD_CHANGE_DISABLED, ident_number);

 Why the function "ident_number" seems to have a constant value of 0x0CDA? We tried to alter the value, but the result of dpslave ID is just 0x0CDA.
I hope you can understand what I am writing above clearly.
Need your help. Thank you very much.
Guotao.

 

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