La Suno
I2C hang recover function added
Dependencies: UniGraphic mbed vt100
In this version, check_i2c_pins function was added in edge_mgr.cpp.
プログラムの起動時、I2Cモジュールを初期化する前に、I2Cに使用するピンの電位を確認し
もし一方でも Low に張り付いていた場合、SCL を GPIO 出力に設定して
所定回数 (I2C_UNLOCK_TRIAL_CYCLE) 反転させることにより、疑似リセットクロックを生成します。
その後は、通常の起動手順に復帰し、以降はこれまでと同様の動作をします。
Diff: af_utils/pending.cpp
- Revision:
- 0:d895cd1cd897
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/af_utils/pending.cpp Tue Apr 03 08:30:29 2018 +0000
@@ -0,0 +1,55 @@
+#include "mbed.h"
+#include "edge_time.h"
+#include "pending.h"
+
+/*
+class pending_class {
+public:
+pending_class() ;
+~pending_class() ;
+
+request_t *request ;
+uint32_t submit_time ;
+uint32_t replied_time ;
+} ;
+*/
+
+pending_class::pending_class()
+{
+ submit_time = edge_time ; /* save current time */
+ replied_time = 0 ;
+ request = new request_t ;
+ request->messageType = 0 ;
+ request->attrId = 0 ;
+ request->requestId = 0 ;
+ request->valueLen = 0 ;
+ request->p_value = new uint8_t[256] ;
+}
+
+pending_class::pending_class(
+ uint8_t messageType,
+ uint16_t attrId,
+ uint8_t requestId,
+ uint16_t valueLen,
+ uint8_t *value
+)
+{
+ submit_time = edge_time ; /* save current time */
+ replied_time = 0 ;
+ request = new request_t ;
+ request->p_value = new uint8_t[256] ;
+ request->messageType = messageType ;
+ request->attrId = attrId ;
+ request->requestId = requestId ;
+ request->valueLen = valueLen ;
+ memcpy(request->p_value, value, valueLen) ;
+}
+
+pending_class::~pending_class()
+{
+ submit_time = 0 ;
+ replied_time = 0 ;
+ delete [] request->p_value ;
+ request->p_value = 0 ;
+ delete request ;
+}
\ No newline at end of file