In DSP applications,it is usually necessary to transfer DSP kernel spatial data,kernel spatial data and external device spatial data to each other.For example,when DSP is running offline,after the system is powered on,DSP automatically loads the code from the extended non-colatile memory into the kernel space or DDR for execution,which is one of the key and difficult points in DSP development,and relates to the reliability and processing speed of the system.HX1041 is different from the traditional general-purpose digital signal processor data transmission mode,it is parallel to the external non-volatile memory area forbids the transfer of data to the memory code segment area or the external volatile memory area,so that the off-line running program can not start itself.This paper presents a method to solve the problem of parallel port and restricted area data transmission of soul core HX1041.Without changing the original hardware design,it can realize the function of HX1041 whole area spatial data transmission.