How to compile byte write to read modify write with word/ half word write?

If my SOC can not support ldrb , how can i deal with byte write in C file? Is there some option to make byte write compile to read modify write ?
How to compile byte write to read modify write with word/ half word write?

If my SOC can not support ldrb , how can i deal with byte write in C file? Is there some option to make byte write compile to read modify write ?
How to align a local variable at word-aligned address

Hi Does anyone know how to force a local variable to be aligned at word address? The DMA transfer needs word-aligned address. Thanks. Joseph
How to align a local variable at word-aligned address

Hi Does anyone know how to force a local variable to be aligned at word address? The DMA transfer needs word-aligned address. Thanks. Joseph
24lC16 Device & Word Address

Need you generous helps. Why my program only can read out the first block 's data of 24LC16? The other data have been read out are all 0xff. The following code is my program about how to set device...