Updated the LowPowerVspUartBridge application

v1.40 (17 Aug 2018)
  - Bug Fix: When sending very long strings, only a portion is sent then it
             stops and then the next blocks only came after sending some
             characters to trigger the next block. Fixed by adding the event
             EVVSPTXEMEPTY to keep the pump primed.
  - Enhancement :
             When the uart is closed, the state of the RTS line is specified
             via the UART_RTS_STATE_ON_CLOSE in the custom file and that
             is now set for 1 so that when uart is closed the peer's CTS
             will deassert and so it will know it cannot send any data

Author: Mahendra Tailor

Applications/LowPowerVspUartBridge/$autorun$.low.power.vsp.uart.bridge.sb

@@ -123,7 +123,18 @@
 // Version History
 //******************************************************************************
 //
-#define APP_VERSION                                   "v1.30"
+#define APP_VERSION                                   "v1.40"
+//
+//v1.40 (17 Aug 2018)
+//  - Bug Fix: When sending very long strings, only a portion is sent then it
+//             stops and then the next blocks only came after sending some
+//             characters to trigger the next block. Fixed by adding the event
+//             EVVSPTXEMEPTY to keep the pump primed.
+//  - Enhancement : 
+//             When the uart is closed, the state of the RTS line is specified
+//             via the UART_RTS_STATE_ON_CLOSE in the custom file and that
+//             is now set for 1 so that when uart is closed the peer's CTS
+//             will deassert and so it will know it cannot send any data
 //
 //v1.30 (3 Jan 2018)
 //  - Bug Fix: Using UART_CTS to re-open uart now works (After closing uart_cts
@@ -287,7 +298,7 @@ function UartCloseConditional()
     //closed, so configure the TX and RTS as outputs and adjust outputs
     rc=gpiosetfunc(UART_SIONUM_TX,2,1)   //TX - set high on default
       #cmpif 0x00000003 : AssertRC(rc, 3620)
-    rc=gpiosetfunc(UART_SIONUM_RTS,2,0)   //RTS - set low to leave it assertd
+    rc=gpiosetfunc(UART_SIONUM_RTS,2,UART_RTS_STATE_ON_CLOSE)   //Adjust RTS state on closure
       #cmpif 0x00000003 : AssertRC(rc, 3640)
     rc=GpioSetFunc(UART_SIONUM_RX,1,2)   //RX  - Pull high input & irq on hi2lo transition
       #cmpif 0x00000003 : AssertRC(rc, 3660)
@@ -548,6 +559,28 @@ function HndlrVspRx()
   TimerStart(STATE_TIMER,idleTimeoutMs,0)
 endfunc 1
 
+//------------------------------------------------------------------------------
+// Vsp tx empty
+//------------------------------------------------------------------------------
+function HndlrVspTxEmpty()
+  select curState
+  case STATE_CONN_UART_CLOSE
+    UartReOpen()
+    NewState(STATE_CONN_UART_OPEN)
+    //Pass data between UART and VSP service
+    BleVspUartBridge()
+    
+  case STATE_CONN_UART_OPEN
+    //Pass data between UART and VSP service
+    BleVspUartBridge()
+    
+  case else
+  endselect
+  
+  //Start the uart inactivity timer
+  TimerStart(STATE_TIMER,idleTimeoutMs,0)
+endfunc 1
+
 //------------------------------------------------------------------------------
 //BLE message has arrived
 //------------------------------------------------------------------------------
@@ -647,6 +680,7 @@ OnEvent EVUARTRX                Call HndlrUartRx
 OnEvent EVUARTTXEMPTY           Call HndlrUartTxEmpty
 onevent EVDETECTCHAN0           call HndlrDetectPinRx
 onEvent EVVSPRX                 call HndlrVspRx
+onEvent EVVSPTXEMPTY            call HndlrVspTxEmpty
 
 //------------------------------------------------------------------------------
 // startup

Applications/LowPowerVspUartBridge/custom.low.power.vsp.uart.bridge.sb

@@ -162,7 +162,7 @@
     // So comment and uncomment the appropriate 2 lines above
     //=========================================================================
 
-
+#define UART_RTS_STATE_ON_CLOSE                       1  //0=ASSERTED, 1=DEASSERTED
 
 //******************************************************************************
 // Debugging related (conditionally compile based on "#set $cmpif" line above)