在hx711的脉冲数量参数的百位设定delay的计数值.默认为零.

GuoGeTiertime · Nov 8, 2024 · 35c9b48 · 35c9b48
1 parent c14bf9b
commit 35c9b48
Showing 1 changed file with 21 additions and 19 deletions.
diff --git a/src/hx71x.c b/src/hx71x.c
@@ -20,9 +20,9 @@
 //hx71x唤醒信号
 static struct task_wake s_Hx71x_Wake;
 
-static uint32_t s_delayCnt = 32; 
+static uint32_t s_delayCnt = 2; 
 static uint32_t s_delayCnt2 = 0;
-static uint32_t s_delayclk= 0;
+static uint32_t s_delayclk= 123;
 
 struct hx71x_s {
     struct timer hx71x_timer;       //定时器,启动
@@ -60,9 +60,9 @@ static inline void
 hx71x_delay_waitdata(uint32_t var)
 {
     uint32_t end = var;
-    for( int i=0; i<s_delayCnt; i++ )
+    for( uint32_t i=0; i<s_delayCnt; i++ )
         end += i;
-    s_delayCnt2 = end;
+    s_delayCnt2 += end;
 }
 
 void command_config_hx71x(uint32_t *args)
@@ -79,14 +79,6 @@ void command_config_hx71x(uint32_t *args)
     hx71x->sample_ticks = 100000000;
     hx71x->sample_times = 0;
     hx71x->sample_cnt = 0;
-
-    s_delayCnt = (CONFIG_CLOCK_FREQ / 1000000) * 0.06; //假设每个循环cnt要3个时钟周期. 大概延时0.2us.
-
-    uint32_t t1 = timer_read_time();
-    uint32_t t2 = timer_read_time();
-    hx71x_delay_waitdata(3);
-    uint32_t t3 = timer_read_time();
-    s_delayclk = t3 - t2 - (t2-t1);
 }
 DECL_COMMAND(command_config_hx71x,
     "config_hx71x oid=%c sck_pin=%u dout_pin=%u");
@@ -124,9 +116,19 @@ void command_query_hx71x(uint32_t * args)
     struct hx71x_s *dev = hx71x_oid_lookup(args[0]);
     dev->sample_ticks = args[1];
     dev->sample_times = args[2];
-    dev->pulse_cnt = args[3];
+    long cnt = args[3];
+    dev->pulse_cnt = cnt % 100;
     dev->sample_cnt = 0;
 
+    //s_delayCnt = (CONFIG_CLOCK_FREQ / 1000000) * 0.06 + 1; //假设每个循环cnt要3个时钟周期. 大概延时0.2us.
+    s_delayCnt = cnt / 100;     //用第三个参数的百位为作为延时计数.
+
+    uint32_t t1 = timer_read_time();
+    uint32_t t2 = timer_read_time();
+    hx71x_delay_waitdata(s_delayclk);
+    uint32_t t3 = timer_read_time();
+    s_delayclk = t3 - t2 - (t2-t1);
+
     sched_del_timer(&dev->hx71x_timer); //删除旧定时器
     //添加新定时器.(需要先关闭中断)
 	irq_disable();
@@ -169,13 +171,13 @@ long HX711_Read(struct hx71x_s *dev)
     {
         gpio_out_write(dev->sck_out, 1);
         // hx71x_udelay(1);
-        hx71x_delay_waitdata(0);
+        hx71x_delay_waitdata(s_delayclk);
 
         count = count << 1;
 
         gpio_out_write(dev->sck_out, 0);
         // hx71x_udelay(1);
-        hx71x_delay_waitdata(0);
+        hx71x_delay_waitdata(s_delayclk);
 
         if( gpio_in_read(dev->dt_in) )
             count++;
@@ -192,10 +194,10 @@ long HX711_Read(struct hx71x_s *dev)
     {
         gpio_out_write(dev->sck_out, 1);
         // hx71x_udelay(1);
-        hx71x_delay_waitdata(0);
+        hx71x_delay_waitdata(s_delayclk);
         gpio_out_write(dev->sck_out, 0);
         // hx71x_udelay(1);
-        hx71x_delay_waitdata(0);
+        hx71x_delay_waitdata(s_delayclk);
     }
 
     //完成采样,计数+1.
@@ -237,8 +239,8 @@ hx71x_query_task(void)
 
         //读取并发送返回数据
         long weight = HX711_Get_Weight(dev);
-//        sendf("hx71x_state oid=%c value=%u cnt=%u next_clock=%u", oid, weight, dev->sample_cnt, next_waketime);
-        sendf("hx71x_state oid=%c value=%u cnt=%u next_clock=%u", oid, weight, s_delayclk, next_waketime);
+        sendf("hx71x_state oid=%c value=%u cnt=%u next_clock=%u", oid, weight, dev->sample_cnt, next_waketime);
+//        sendf("hx71x_state oid=%c value=%u cnt=%u next_clock=%u", oid, weight, s_delayclk, next_waketime);
     }
 }
 DECL_TASK(hx71x_query_task);