Technically you described a warning, not an error, that comes up even if you are using the function correctly for DMA transfers with large-data memory model enabled: e2e.ti.com/.../395988 e2e.ti.com/.../63686 e2e.ti.com/.../1285241 The DMAxDA register is 20 bits wide and therefore the value 0x24BFF can be written to it , but you will need to use a __data20_write intrinsic : e2e.ti.com/.../226399 Regards, Ryan
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