From 3eae88f16f8b6176ff072328a49754f5aa468c77 Mon Sep 17 00:00:00 2001
From: Manticore <sivaprakasam@srushty.com>
Date: Thu, 20 Mar 2025 17:57:44 +0530
Subject: [PATCH] Acknowledgement condition Added

---
 main/uart_async_rxtxtasks_main.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/main/uart_async_rxtxtasks_main.c b/main/uart_async_rxtxtasks_main.c
index 2aa75c9..5698f78 100644
--- a/main/uart_async_rxtxtasks_main.c
+++ b/main/uart_async_rxtxtasks_main.c
@@ -15,6 +15,8 @@
 #define RXD_PIN GPIO_NUM_16   // RX pin for MCP39F501
 #define BUF_SIZE 256          // UART buffer size
 
+#define ACK	6U
+
 static const char *TAG = "MCP39F501";
 
 // Initialize UART
@@ -55,7 +57,8 @@ uint32_t read_vrms() {
     vTaskDelay(pdMS_TO_TICKS(100));
 
     int len = uart_receive_response(response, sizeof(response));
-    if (len > 0 ) {
+   // if (len > 0 ) {
+	if (response[0] == ACK ) {
         vrms_value = (response[2] << 8) | response[3]; // Extract VRMS value
       //  ESP_LOGI(TAG, "VRMS: %lu", vrms_value);
     } else {
@@ -75,7 +78,9 @@ uint32_t read_active_power() {
     vTaskDelay(pdMS_TO_TICKS(50));
 
     int len = uart_receive_response(response, sizeof(response));
-    if (len >= 7) {
+    
+     // if (len > 0 ) {
+	if (response[0] == ACK ) {
         power_value = (response[2] << 24) | (response[3] << 16) | (response[4] << 8) | response[5]; // Extract Power
      //   ESP_LOGI(TAG, "Active Power: %lu", power_value);
     } else {
@@ -96,7 +101,8 @@ uint32_t read_current()
     vTaskDelay(pdMS_TO_TICKS(50));
 
     int len = uart_receive_response(response, sizeof(response));
-    if (len >= 7) {
+     // if (len > 0 ) {
+	if (response[0] == ACK ) {
         current_value = (response[2] << 24) | (response[3] << 16) | (response[4] << 8) | response[5]; // Extract Power
 //        ESP_LOGI(TAG, "Active Power: %lu", current_value);
     } else {
@@ -119,7 +125,8 @@ uint32_t read_power_factor(){
     vTaskDelay(pdMS_TO_TICKS(50));
 
     int len = uart_receive_response(response, sizeof(response));
-    if (len > 0) {
+     // if (len > 0 ) {
+	if (response[0] == ACK ) {
         power_factor = ((response[2] << 8) | response[3]); // Extract Power
   //      ESP_LOGI(TAG, "====>>>  Power Factor: 0x%0X", (unsigned int) power_factor);
     } else {
@@ -146,7 +153,8 @@ uint32_t reactive_power(){
     
      ESP_LOGI(TAG, "Active Power length : %d", len);
      
-    if (len > 0 ) {
+     // if (len > 0 ) {
+	if (response[0] == ACK ) {
         r_power_value = (response[2] << 24) | (response[3] << 16) | (response[4] << 8) | response[5]; // Extract Power
 //        ESP_LOGI(TAG, "Active Power: %lu", current_value);
     } else {