Hi Team,
I am working on a custom-built board (ESP32 & mmWave Sensor IWR6843). we're chosen ESP2_U2_Tx /Rx pins are connected to SMD RS232_Tx / Rx. over-on tap of SMD connector we put a mmWave sensor. my question here is, I want to send a configuration file to mmWave using ESP_U2_Tx / Rx and check the output using ESP_DEBUG_TX /Rx pins. I have checked the people count visualizer and MatLab code. but how to identified control port and data ports in the visualizer. how to recognizing this is a control port and this is the data port. how I can send commands over TTL to UART converter. please do the needful.
Here I am attached my c code. Please do the needful. please send me schematics and pin diagram of IWR6843.
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_system.h"
#include "nvs_flash.h"
#include "driver/uart.h"
#include "freertos/queue.h"
#include "esp_log.h"
#include "soc/uart_struct.h"
#include <unistd.h>
#include <signal.h>
#include <termios.h>
#include <fcntl.h>
#include <string.h>
#include <pthread.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#define ECHO_TEST_TXD (17)
#define ECHO_TEST_RXD (16)
#define BUF_SIZE (1024)
int i=0;
//int portfd_ZB;
//an example of echo test with hardware flow control on UART1
static void echo_task()
{
const int uart_num0 = UART_NUM_0;
uart_config_t uart_config0 = {
.baud_rate = 115200,
.data_bits = UART_DATA_8_BITS,
.parity = UART_PARITY_DISABLE,
.stop_bits = UART_STOP_BITS_1,
.flow_ctrl = UART_HW_FLOWCTRL_DISABLE, //UART_HW_FLOWCTRL_CTS_RTS,
.rx_flow_ctrl_thresh = 122,
};
const int uart_num2 = UART_NUM_2;
uart_config_t uart_config1 = {
.baud_rate = 115200,
.data_bits = UART_DATA_8_BITS,
.parity = UART_PARITY_DISABLE,
.stop_bits = UART_STOP_BITS_1,
.flow_ctrl = UART_HW_FLOWCTRL_DISABLE, //UART_HW_FLOWCTRL_CTS_RTS,
.rx_flow_ctrl_thresh = 122,
};
//Configure UART1 parameters
uart_param_config(uart_num0, &uart_config0);
uart_param_config(uart_num2, &uart_config1);
uart_set_pin(uart_num0, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE);
uart_set_pin(uart_num2, ECHO_TEST_TXD, ECHO_TEST_RXD, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE);
//Install UART driver (we don't need an event queue here)
//In this example we don't even use a buffer for sending data.
uart_driver_install(uart_num0, BUF_SIZE * 2, 0, 0, NULL, 0);
uart_driver_install(uart_num2, BUF_SIZE * 2, 0, 0, NULL, 0);
uint8_t* data = (uint8_t*) malloc(BUF_SIZE);
char config6843[24][64]={//"sensorStop\n",
/*"flushCfg\n",
"dfeDataOutputMode 1\n",
"channelCfg 15 5 0\n",
"adcCfg 2 1\n",
"profileCfg 0 60.6 30 10 62 0 0 53 1 128 2500 0 0 30\n",
"chirpCfg 0 0 0 0 0 0 0 1\n",
"chirpCfg 1 1 0 0 0 0 0 4\n",
"frameCfg 0 1 128 0 50 1 0\n",
"lowPower 0 0\n",
"guiMonitor 1 1 0 0\n",
"cfarCfg 6 4 4 4 4 16 16 4 4 55 67 0\n",
"doaCfg 600 1875 30 1 1 0\n",
"SceneryParam -6 6 0.5 6\n",
"GatingParam 3 2 2 0\n",
"StateParam 10 5 100 100 5\n",
"AllocationParam 250 250 0.25 30 1 2\n",
"trackingCfg 1 2 250 20 52 82 50 90",*/
"sensorStart\n"
} ;
/*if((portfd_ZB = uart_num2)<0){
printf("%s: %s (%d)zigbee open port failed,portfd_ZB=%d\n",__FILE__,__func__,__LINE__,portfd_ZB);
}
else*/
for(i=0;i<24;i++){
uart_write_bytes(uart_num2, (const char*)config6843[i], sizeof(config6843[i]));
usleep(1000);
}
// char* test_str = "This is a test string.\n";
//uart_write_bytes(uart_num2, (const char*)config6843[i], sizeof(config6843[i]));
// usleep(1000);
while(1) {
//char* test_str = "This is a test string.\n";
//uart_write_bytes(uart_num2, (const char*)test_str, strlen(test_str));
//usleep(1000);
// Read data from UART.
int length = uart_read_bytes(uart_num2, data, BUF_SIZE, 200);
printf("Received Data %.2x\n", length);
for(int i=0;i < length; i++){
printf("%.2x ", data[i]);
}
esp_err_t uart_flush(uart_port_t uart_num2);
}
}
void app_main()
{
//A uart read/write example without event queue;
xTaskCreate(echo_task, "uart_echo_task", 1024, NULL, 10, NULL);
}
