背景：第一次编写的IPcore存在问题，没有加入偏置与ReLU

目的：给IPcore加入偏置和ReLU。

一、最终BRAM尺寸的确定

1.1 IBRAM

	//calculate parameters about IBRAM
	printf("inWidth = %d, in_ChannelNum = %d \n",inWidth, inChanNum);
	int input_pixel = inWidth*inChanNum*NUM_IMG_CACHE_LINES;
	if (input_pixel > Max_input_image_pixels) 
		Max_input_image_pixels = input_pixel;
	printf("-----------Max_input_image_pixels = %d-----------\n",Max_input_image_pixels);

 输入的图片尺寸的大小，

1.2 WBRAM

 	//calculate parameters about WBRAM
	int out_channelNum=OutChanNum;
	printf("OutchanelNum = %d , inChannelNum = %d \n",out_channelNum, inChanNum);
	int max_co_Num_per_PE=(out_channelNum+N_PE-1)/N_PE;
	printf("max_co_Num_per_PE= %d \n",max_co_Num_per_PE);
	int max_filters_per_PE=max_co_Num_per_PE*inChanNum;
	printf("max_filters_per_PE= %d\n \n",max_filters_per_PE);
	
	if(max_co_Num_per_PE>MAXCO_PER_PE)MAXCO_PER_PE=max_co_Num_per_PE;
	if(max_filters_per_PE>MAX_FILTERS_PER_PE)MAX_FILTERS_PER_PE=max_filters_per_PE;
	printf("-----------%d  %d --------\n",MAXCO_PER_PE,MAX_FILTERS_PER_PE);

1.3 OBRAM

	//calculate parameters about OBRAM
	printf("\nCo num = %d \n",OutChanNum);
    if(out_channelNum > max_out_channelNum) max_out_channelNum=out_channelNum;
    printf("******** max_out_channelNum = %d  *********\n",max_out_channelNum);

1.4  加入BBRAM

表示偏移的BRAM，尺寸为最大的输出通道的个数。

float BiasCache::BBRAM[MAX_NUM_CHOUT];

1.4 定义

// ==========================
// = Architecture Constants =
// ==========================
// Number of Image Cache Lines (need 3, use 4 for simplified Addressing HW)
const int NUM_IMG_CACHE_LINES = 4;
// Number of Processing Elements
const int N_PE = 8;

const int DRAM_DEPTH = 5932576;

//IBRAM, OBRAM, WBRAM size (this value need to be changed by network)
const int MAX_IMAGE_CACHE_SIZE = 8704;
const int MAX_NUM_CHOUT = 128;
//const int MAX_CO_PER_PE=8;
// const int MAX_2D_FILTERS_PER_PE=1024;
const int MAX_2D_FILTERS_PER_PE= 2048;

//-------------Cache BRAM variable----------------
float OutputCache::OBRAM[MAX_NUM_CHOUT];
float ImageCache::IBRAM[MAX_IMAGE_CACHE_SIZE];
float WeightsCache::WBRAM[N_PE][MAX_2D_FILTERS_PER_PE][9];

二、程序之中结构嵌套及

未完