add nnom pack and example
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120
examples/nnom_mnist/nnom_mnsit_example.c
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120
examples/nnom_mnist/nnom_mnsit_example.c
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/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file : main.c
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* @brief : Main program body
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2020 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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**************
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****************************************************************
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*/
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/* USER CODE END Header */
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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#include "dcmi.h"
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#include "dma.h"
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#include "i2c.h"
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#include "usart.h"
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#include "spi.h"
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#include "gpio.h"
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#include "cmsis_os.h"
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#include "nnom.h"
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#include "image.h"
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#include "weights.h"
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//task1
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#define TASK1_STK_SIZE 256
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void task1(void *pdata);
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osThreadDef(task1, osPriorityNormal, 1, TASK1_STK_SIZE);
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//task2
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#define TASK2_STK_SIZE 256
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void task2(void *pdata);
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osThreadDef(task2, osPriorityNormal, 1, TASK2_STK_SIZE);
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#ifdef NNOM_USING_STATIC_MEMORY
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uint8_t static_buf[1024*20];
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#endif
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nnom_model_t *model;
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const char codeLib[] = "@B%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft/\\|()1{}[]?-_+~<>i!lI;:,\"^`'. ";
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void print_img_nnom(int8_t * buf)
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{
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for(int y = 0; y < 28; y++)
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{
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for (int x = 0; x < 28; x++)
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{
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int index = 69 / 127.0 * (127 - buf[y*28+x]);
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if(index > 69) index =69;
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if(index < 0) index = 0;
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printf("%c",codeLib[index]);
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printf("%c",codeLib[index]);
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}
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printf("\n");
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}
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}
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void mnist_nnom()
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{
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uint32_t tick, time;
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uint32_t predic_label;
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float prob;
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int32_t index = 0;
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printf("\nprediction start.. \n");
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tick = tos_systick_get();
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// copy data and do prediction
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memcpy(nnom_input_data, (int8_t*)&img[index][0], 784);
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nnom_predict(model, &predic_label, &prob);
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time = tos_systick_get() - tick;
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//print original image to console
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print_img_nnom((int8_t*)&img[index][0]);
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printf("Time: %d tick\n", time);
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printf("Truth label: %d\n", label[index]);
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printf("Predicted label: %d\n", predic_label);
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printf("Probability: %d%%\n", (int)(prob*100));
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}
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void task1(void *pdata)
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{
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nnom_set_static_buf(static_buf, sizeof(static_buf));
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model = nnom_model_create();
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model_run(model);
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mnist_nnom();
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while(1)
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{
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osDelay(1000);
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}
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}
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void task2(void *pdata)
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{
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while(1)
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{
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osDelay(1000);
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}
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}
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void application_entry(void *arg)
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{
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printf("***nnom mnist example\r\n");
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osThreadCreate(osThread(task1), NULL); // Create task1
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osThreadCreate(osThread(task2), NULL); // Create task2
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}
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