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Non aligned access in arm v7 going into exception

typedef struct __attribute__((__packed__))

{

uint8_t    op_code;

uint8_t    flags;

uint32_t   logical_block_addr;

uint8_t    group_num;

uint16_t   tx_length;

uint8_t    control;

} SCSI_READ10_t;

when I am assigning some value to tx_length core is showing some exception. Is the assembly of   tx_length assignment  compiler is putting strh/ldrh(half-byte) instruction throwing error its not 2 byte aligned . But not aligned accesses are enabled. So my question is : -

Q1. Can I access not aligned memory with strh/ldrh (suppose addr :- 0xxxx37) if non aligned accesses are enabled for core ?

Q2. Do compiler take care of these no aligned access and will convert not aligned half word into two  1 byte accesses ?

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