The traditional control system of LED lattice screen often uses 8 bit or l6 bit controller. It is difficult to meet the requirements of larger area display and stable refresh rate because of its slow operation

low addressing capacity and high power consumption. To resolve these problems above

this paper puts forward a way for large-scale LED lattice screen display system based on ARM embedded. The data can be transmitted and controlled by the inner DMA controller of the ARM chip. The fetch and translation time can be saved for the processor to transmit data continuously when reading and writing. The speed and efficiency of transmitting can be improved.