From 45ad73e40acb70c386b4b0324893530cb3d17626 Mon Sep 17 00:00:00 2001
From: WXK <287788329@qq.com>
Date: 星期三, 19 六月 2024 09:46:21 +0800
Subject: [PATCH] 实测还是会有死机问题。时间很长不好复现

---
 Src/decadriver/deca_device.c |   29 +++++++++++++++++++++++++----
 1 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/Src/decadriver/deca_device.c b/Src/decadriver/deca_device.c
index bef3021..04fc341 100644
--- a/Src/decadriver/deca_device.c
+++ b/Src/decadriver/deca_device.c
@@ -178,10 +178,6 @@
     }
 
     _dwt_enableclocks(FORCE_SYS_XTI); // NOTE: set system clock to XTI - this is necessary to make sure the values read by _dwt_otpread are reliable
-   	  if(module_power>67)
-		{module_power=67;}
-		if(module_power<0)
-		{module_power=0;}
 		if(module_power>36)
 		{
 			power_temp =(module_power-36);
@@ -811,7 +807,32 @@
     //diagnostics->debug2 = dwt_read32bitoffsetreg(0x27, 0xc);
 
 }
+#define B20_SIGN_EXTEND_TEST (0x00100000UL)
+#define B20_SIGN_EXTEND_MASK (0xFFF00000UL)
+/* offset from DRX_CONF_ID in bytes to 21-bit signed RX carrier integrator value */
+#define DRX_CARRIER_INT_OFFSET  0x28
+#define DRX_CARRIER_INT_LEN     (3)
+#define DRX_CARRIER_INT_MASK    0x001FFFFF
+int32_t dwt_readcarrierintegrator(void)
+{
+    uint32_t  regval = 0 ;
+    int     j ;
+    uint8_t   buffer[DRX_CARRIER_INT_LEN] ;
 
+    /* Read 3 bytes into buffer (21-bit quantity) */
+
+    dwt_readfromdevice(DRX_CONF_ID,DRX_CARRIER_INT_OFFSET,DRX_CARRIER_INT_LEN, buffer) ;
+
+    for (j = 2 ; j >= 0 ; j --)  // arrange the three bytes into an unsigned integer value
+    {
+        regval = (regval << 8) + buffer[j] ;
+    }
+
+    if (regval & B20_SIGN_EXTEND_TEST) regval |= B20_SIGN_EXTEND_MASK ; // sign extend bit #20 to whole word
+    else regval &= DRX_CARRIER_INT_MASK ;                               // make sure upper bits are clear if not sign extending
+
+    return (int32_t) regval ; // cast unsigned value to signed quantity.
+}
 /*! ------------------------------------------------------------------------------------------------------------------
  * @fn dwt_readtxtimestamp()
  *

--
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