From b55d74a9cd4ff65d7d7b992a54a9437a7b3be85a Mon Sep 17 00:00:00 2001
From: Wolfgang Hottgenroth <w.hottgenroth@krohne.com>
Date: Thu, 29 Oct 2020 16:00:17 +0100
Subject: [PATCH] some comments on mbus handling

---
 cube/User/Src/mbusComm.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/cube/User/Src/mbusComm.c b/cube/User/Src/mbusComm.c
index 83f0f4a..edf0559 100644
--- a/cube/User/Src/mbusComm.c
+++ b/cube/User/Src/mbusComm.c
@@ -46,20 +46,20 @@ static void handleRequestEngine(void *handle) {
         if (! loopActive) {
             localMbusCommHandle->retryCnt++;
             loopEnable();
-            schAdd(handleRequestEngine, handle, 10, 0);
+            schAdd(handleRequestEngine, handle, 10, 0); // give 10ms to settled the loop
         } else {
             // write(fd, sendBuf, 5);
             HAL_UART_Transmit_IT(&mbusUart, localMbusCommHandle->sendBuf, 5);
             localMbusCommHandle->state = SENDING;
-            schAdd(handleRequestEngine, handle, 1, 0);
+            schAdd(handleRequestEngine, handle, 1, 0);  // ask me again in 1ms in the next state ...
         }
         break;
 
         case SENDING:
-        if (HAL_UART_GetState(&mbusUart) == HAL_UART_STATE_READY) {
+        if (HAL_UART_GetState(&mbusUart) == HAL_UART_STATE_READY) { // ... whether I'm done
             localMbusCommHandle->state = IDLE;
         } else {
-            schAdd(handleRequestEngine, handle, 1, 0);
+            schAdd(handleRequestEngine, handle, 1, 0); // not yet done, ask me again in 1ms
         }
         break;