Marc Plouhinec / SoftSerial

Fork of the original SoftSerial library with just a little modification in order to compile it with the current mbed version.

Dependents:   Adafruit_FONA_Library_FONAtest

Fork of SoftSerial by Erik -

Files at this revision

API Documentation at this revision

Revision 3:7238e9bb74d2, committed 2014-04-26

Comitter:
Sissors
Date:
Sat Apr 26 16:35:20 2014 +0000
Parent:
2:9e01a38606b4
Child:
4:c010265ed202
Commit message:
And RX to 19200 (todo: a fast mode which is not interrupt based)

Changed in this revision

SoftSerial.h Show annotated file Show diff for this revision Revisions of this file
SoftSerial_rx.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/SoftSerial.h	Sat Apr 26 16:21:42 2014 +0000
+++ b/SoftSerial.h	Sat Apr 26 16:35:20 2014 +0000
@@ -96,6 +96,7 @@
     volatile bool out_valid;
     bool rx_error;
     Timeout rxout;
+    Ticker rxticker;
     
     //tx
     void tx_handler(void);

--- a/SoftSerial_rx.cpp	Sat Apr 26 16:21:42 2014 +0000
+++ b/SoftSerial_rx.cpp	Sat Apr 26 16:35:20 2014 +0000
@@ -12,15 +12,17 @@
 
 //Start receiving byte
 void SoftSerial::rx_gpio_irq_handler(void) {
+    rxout.attach_us(this, &SoftSerial::rx_handler, bit_period + (bit_period >> 1));   //Start reading first data byte
     rx->fall(NULL);
     rx_bit = 0;
     rx_error = false;
-    rxout.attach_us(this, &SoftSerial::rx_handler, bit_period + (bit_period >> 1));   //Start reading first data byte
 };    
 
 void SoftSerial::rx_handler(void) {
+    if (!rx_bit)
+        rxticker.attach_us(this, &SoftSerial::rx_handler, bit_period); 
+        
     rx_bit++;
-    rxout.attach_us(this, &SoftSerial::rx_handler, bit_period); 
     
     //Receive data
     int val = rx->read();
@@ -72,7 +74,7 @@
         out_buffer = read_buffer;
     }
     read_buffer = 0;
-    rxout.detach(); 
+    rxticker.detach(); 
     rx->fall(this, &SoftSerial::rx_gpio_irq_handler);
 }