feat: 换用更简单的通信帧格式

真的不是因为原来的不好用！

app/by_frame.c

@@ -0,0 +1,88 @@
+#include "by_frame.h"
+
+#include <stdint.h>
+#include <string.h>
+
+#include "zf_common_headfile.h"
+#include "lwrb.h"
+#include "crc16.h"
+
+lwrb_t lwrb_struct;
+uint8_t lwrb_buffer[50];
+uint8_t frame_buffer[100];
+
+void by_frame_init(void)
+{
+    uart_init(BY_FRAME_UART_INDEX, BY_FRAME_UART_BAUDRATE, BY_FRAME_UART_TX_PIN, BY_FRAME_UART_RX_PIN);
+    uart_rx_interrupt(BY_FRAME_UART_INDEX, ENABLE);
+
+    lwrb_init(&lwrb_struct, lwrb_buffer, 50);
+}
+
+void by_frame_send(uint8_t data_num, uint32_t *data_array)
+{
+    uint16_t crc_cal = 0;
+    frame_buffer[0]  = BY_FRAME_HEAD_1;
+    frame_buffer[1]  = BY_FRAME_HEAD_2;
+
+    memcpy(frame_buffer + 2, data_array, data_num * sizeof(uint32_t));
+    crc_cal = crc16_check(frame_buffer, 2 + data_num * sizeof(uint32_t));
+
+    frame_buffer[2 + data_num * sizeof(uint32_t)] = (uint8_t)(crc_cal >> 8);
+    frame_buffer[3 + data_num * sizeof(uint32_t)] = (uint8_t)(crc_cal);
+
+    uart_write_buffer(BY_FRAME_UART_INDEX, frame_buffer, 4 + data_num * sizeof(uint32_t));
+}
+
+void by_frame_parse(uint8_t data_num, uint32_t *data_array)
+{
+    uint8_t cnt     = 0;
+    uint8_t cnt_crc = 2;
+    uint8_t data    = 0;
+    uint8_t data_array_temp[100];
+    uint16_t crc_cal = 0;
+
+    if (lwrb_get_full(&lwrb_struct) >= (4 + data_num * sizeof(uint32_t))) {
+        while (lwrb_read(&lwrb_struct, &data, 1)) {
+            printf("char : %0.2X\r\n", data);
+            if ((0 == cnt) && (BY_FRAME_HEAD_1 == data)) {
+                cnt                = 1;
+                data_array_temp[0] = data;
+                continue;
+            }
+
+            if ((1 == cnt) && (BY_FRAME_HEAD_2 == data)) {
+                cnt                = 2;
+                data_array_temp[1] = data;
+                continue;
+            }
+
+            if ((2 <= cnt) && (cnt < 2 + data_num * sizeof(uint32_t))) {
+                data_array_temp[cnt] = data;
+                cnt++;
+                continue;
+            }
+
+            if (cnt_crc) {
+                crc_cal |= ((uint16_t)data << (--cnt_crc * 8));
+                continue;
+            }
+
+            printf("GET CRC %0.4X\r\n", crc_cal);
+            printf("CAL CRC %0.4X\r\n", crc16_check((uint8_t *)data_array_temp, 2 + data_num * sizeof(uint32_t)));
+
+            if (!cnt_crc) {
+                if (crc_cal == crc16_check((uint8_t *)data_array_temp, 2 + data_num * sizeof(uint32_t))) {
+                    memcpy(data_array, data_array_temp + 2, data_num * sizeof(uint32_t));
+                    printf("parsed done!\r\n");
+                    break;
+                }
+            }
+        }
+    }
+}
+
+void by_frame_parse_uart_handle(uint8_t data)
+{
+    lwrb_write(&lwrb_struct, &data, 1);
+}