Design of FPGA-Based Accelerator for Convolutional Neural Network under Heterogeneous Computing Framework with OpenCL

Table 1

The single thread calculation time of the LeNet-5 layers on CPU.

Layer	C1	S2	C3	S4	C5	F6	O7	Total
Time (ms)	4.14	0.14	7.86	0.04	1.57	0.16	0.02	13.93