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Hi expert,
My customer defined a structure array (Sys) in CLA_DATA_RAM (LS0~LS1). One member (X1) in this structure located in 0x8744. This structure (Sys) is updated in CLA, for test purpose, we put decimal number 1.2346 in it.
We hope CPU can get latest content from X1 though CLA data ram isntead of a message ram. (Is that feasible? I didn't see limitions here)
The issue we met is:
When we read the content of X1 from CPU in two different ways, one can work, the other can not.
WORKED:
=*(float32_t*)0x8744
.dwpsn file "D:/02 MyJob_Projects/。。。",line 273,column 9,is_stmt,isa 0
MOVL XAR5,#34628 ; [CPU_ARAU] |273|
MOVL XAR6,*+XAR5[0] ; [CPU_ALU] |273|
MOVB ACC,#74 ; [CPU_ALU] |273|
ADDL ACC,*-SP[4] ; [CPU_ALU] |273|
MOVL XAR4,ACC ; [CPU_ALU] |273|
MOVL *+XAR4[0],XAR6 ; [CPU_ALU] |273|
NOT WORKED:
=Sys[1].X1
ASM:
.dwpsn file "D:/02 MyJob_Projects/。。。 ",line 272,column 9,is_stmt,isa 0
MOVL XAR6,@_Sys+56 ; [CPU_ALU] |272|
MOVB ACC,#72 ; [CPU_ALU] |272|
ADDL ACC,*-SP[4] ; [CPU_ALU] |272|
MOVL XAR4,ACC ; [CPU_ALU] |272|
MOVL *+XAR4[0],XAR6 ; [CPU_ALU] |272|
We have included "F2837xD_Cla_typedefs.h" here and all the reated sectors in CMD file is aligned 2. What could be the casue or the best practice we should take here?
Thanks
Sheldon
