From c11db2c9bf067322d97a19afd7eefb3a387ca302 Mon Sep 17 00:00:00 2001
From: yelvlab <wanghao19950516@gmail.com>
Date: Thu, 23 Jan 2025 10:35:12 +0800
Subject: [PATCH] for debug

---
 ld/gd32e23x_gcc.ld   |  2 +-
 src/gd32e23x_it.c    |  8 +++----
 src/rs485_protocol.c | 56 +++++++++++++++++++++++++++-----------------
 3 files changed, 40 insertions(+), 26 deletions(-)

diff --git a/ld/gd32e23x_gcc.ld b/ld/gd32e23x_gcc.ld
index 65afe02..4773fab 100644
--- a/ld/gd32e23x_gcc.ld
+++ b/ld/gd32e23x_gcc.ld
@@ -2,7 +2,7 @@
 MEMORY
 {
   FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 64K
-  RAM (xrw)       : ORIGIN = 0x20000000, LENGTH = 4K
+  RAM (xrw)       : ORIGIN = 0x20000000, LENGTH = 8K
 }
 
 ENTRY(Reset_Handler)
diff --git a/src/gd32e23x_it.c b/src/gd32e23x_it.c
index b82e933..75ec00a 100644
--- a/src/gd32e23x_it.c
+++ b/src/gd32e23x_it.c
@@ -163,15 +163,15 @@ void USART1_IRQHandler(void) {
     // static uint8_t rx_buffer[RX_BUFFER_SIZE];
 
     if (RESET != usart_interrupt_flag_get(USART_PHY, USART_INT_FLAG_RBNE)) {
-        usart_interrupt_flag_clear(USART_PHY, USART_INT_FLAG_RBNE);
+        // usart_interrupt_flag_clear(USART_PHY, USART_INT_FLAG_RBNE);
         uint8_t received_data = (uint8_t) usart_data_receive(USART_PHY);
 
-        printf("%c", received_data);
-        // // 将接收到的数据存储到缓冲区
+        // printf("%c", received_data);
+        // 将接收到的数据存储到缓冲区
         // if (rx_index < RX_BUFFER_SIZE - 1) {
         //     rx_buffer[rx_index++] = received_data;
         // }
-        // store_char(received_data, &rx_buffer);
+        store_char(received_data, &rx_buffer);
     }
     //
     // if (RESET != usart_interrupt_flag_get(USART0, USART_INT_FLAG_IDLE)) {
diff --git a/src/rs485_protocol.c b/src/rs485_protocol.c
index c81a9b9..78f3596 100644
--- a/src/rs485_protocol.c
+++ b/src/rs485_protocol.c
@@ -18,9 +18,20 @@ static char *strchr_pointer = NULL;
 
 static packet_state_t packet_state = PS_LEN;
 
+// bool code_seen(char code) {
+//     // strchr_pointer = strchr(cmd_buffer[buf_index_r], code);
+//     return (strchr_pointer != NULL);  //Return True if a character was found
+// }
+
 bool code_seen(char code) {
-    strchr_pointer = strchr(cmd_buffer[buf_index_r], code);
-    return (strchr_pointer != NULL);  //Return True if a character was found
+    strchr_pointer = NULL;
+    for (int i = 0; cmd_buffer[buf_index_r][i] != '\0'; i++) {
+        if (cmd_buffer[buf_index_r][i] == code) {
+            strchr_pointer = &cmd_buffer[buf_index_r][i];
+            break;
+        }
+    }
+    return (strchr_pointer != NULL);  // Return True if a character was found
 }
 
 float code_value(void) {
@@ -149,6 +160,7 @@ void start_communication(void) {
     }
 
     if (buf_length) {
+        printf("DONE！\r\n");
         prcess_command();
         buf_length--;
         buf_index_r = (buf_index_r + 1) % BUF_SIZE;
@@ -178,34 +190,36 @@ void get_command(void) {
                 } else {
                     serial_count = 0;
                 }
-            break;
+                break;
             case PS_TYPE:
                 packet_type = serial_char;
-            check_sum += serial_char;
-            packet_state = PS_LEN;
-            break;
+                check_sum += serial_char;
+                packet_state = PS_LEN;
+                break;
             case PS_LEN:
                 check_sum += serial_char;
-            packet_len = serial_char;
-            packet_state = PS_PAYLOAD;
-            break;
+                packet_len = serial_char;
+                packet_state = PS_PAYLOAD;
+                break;
             case PS_PAYLOAD:
                 check_sum += serial_char;
-            cmd_buffer[buf_index_w][serial_count++] = serial_char;
-            if (serial_count >= packet_len) {
-                packet_state = PS_CRC;
-            }
-            break;
+                cmd_buffer[buf_index_w][serial_count++] = serial_char;
+                if (serial_count >= packet_len) {
+                    packet_state = PS_CRC;
+                }
+                break;
             case PS_CRC:
                 packet_state = PS_NULL;
-            if (!serial_count || check_sum != serial_char) {
+                if (!serial_count || check_sum != serial_char) {
+                    serial_count = 0;
+                    return;
+                }
+                cmd_buffer[buf_index_w][serial_count] = 0;
+                buf_index_w = (buf_index_w + 1) % BUF_SIZE;
+                buf_length++;
                 serial_count = 0;
-                return;
-            }
-            cmd_buffer[buf_index_w][serial_count] = 0;
-            buf_index_w = (buf_index_w + 1) % BUF_SIZE;
-            buf_length++;
-            serial_count = 0;
+            default:
+                break;
         }
     }
 }