Added EnableRs485 function

marcelosguerra · Jan 11, 2022 · b425c94 · b425c94
1 parent ffe3766
commit b425c94
Show file tree

Hide file tree

Showing 2 changed files with 19 additions and 2 deletions.
diff --git a/Arduino & ESP8266/SC16IS752.cpp b/Arduino & ESP8266/SC16IS752.cpp
@@ -501,6 +501,21 @@ int SC16IS752::ReadByte(uint8_t channel)
 
 }
 
+void SC16IS752::EnableRs485(uint8_t channel, uint8_t invert)
+{
+	uint8_t temp_efcr;
+	temp_efcr = ReadRegister(channel, SC16IS750_REG_EFCR);
+	if ( invert == 0) {
+		temp_efcr |= 0x20;
+	} else {
+		temp_efcr |= 0x30;
+	}
+	WriteRegister(channel, SC16IS750_REG_EFCR,temp_efcr);
+
+	return;
+}
+
+
 void SC16IS752::EnableTransmit(uint8_t channel, uint8_t tx_enable)
 {
 	uint8_t temp_efcr;

diff --git a/Arduino & ESP8266/SC16IS752.h b/Arduino & ESP8266/SC16IS752.h
@@ -131,7 +131,9 @@ class SC16IS752
     void    InterruptControl(uint8_t channel, uint8_t int_ena);
     void    ModemPin(uint8_t gpio); //gpio == 0, gpio[7:4] are modem pins, gpio == 1 gpio[7:4] are gpios
     void    GPIOLatch(uint8_t latch);
-
+    void    EnableRs485(uint8_t channel, uint8_t invert);
+    void    EnableTransmit(uint8_t channel, uint8_t tx_enable);
+
 
   private:
     uint8_t  device_address_sspin;
@@ -158,7 +160,7 @@ class SC16IS752
     uint8_t FIFOAvailableSpace(uint8_t channel);
     void    WriteByte(uint8_t channel, uint8_t val);
     int     ReadByte(uint8_t channel);
-    void    EnableTransmit(uint8_t channel, uint8_t tx_enable);
+    //void    EnableTransmit(uint8_t channel, uint8_t tx_enable);
     int     peek_buf;
     uint8_t peek_flag;