From dbc33951a4ff950186f5467fb8a2cbc86ce57c3b Mon Sep 17 00:00:00 2001
From: Pascal Langer <pascal_langer@yahoo.fr>
Date: Sat, 13 Mar 2021 18:18:07 +0100
Subject: [PATCH] Fix for module boot issue?

---
 Multiprotocol/HOTT_cc2500.ino   | 2 +-
 Multiprotocol/Multiprotocol.h   | 2 +-
 Multiprotocol/Multiprotocol.ino | 2 ++
 Multiprotocol/Telemetry.ino     | 6 ++++++
 4 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/Multiprotocol/HOTT_cc2500.ino b/Multiprotocol/HOTT_cc2500.ino
index a4ee0e4..f913d3e 100644
--- a/Multiprotocol/HOTT_cc2500.ino
+++ b/Multiprotocol/HOTT_cc2500.ino
@@ -350,7 +350,7 @@ uint16_t HOTT_callback()
 			CC2500_Strobe(CC2500_SFRX);
 			//RX
 			if(packet[29] & 0xF8)
-			{// binary telemetry
+			{// Sync telemetry
 				CC2500_WriteReg(CC2500_04_SYNC1, 0x2C);
 				CC2500_WriteReg(CC2500_05_SYNC0, 0x6E);
 			}
diff --git a/Multiprotocol/Multiprotocol.h b/Multiprotocol/Multiprotocol.h
index f5d0b99..32a9be2 100644
--- a/Multiprotocol/Multiprotocol.h
+++ b/Multiprotocol/Multiprotocol.h
@@ -19,7 +19,7 @@
 #define VERSION_MAJOR		1
 #define VERSION_MINOR		3
 #define VERSION_REVISION	2
-#define VERSION_PATCH_LEVEL	59
+#define VERSION_PATCH_LEVEL	60
 
 #define MODE_SERIAL 0
 
diff --git a/Multiprotocol/Multiprotocol.ino b/Multiprotocol/Multiprotocol.ino
index 2563ea3..2fae10b 100644
--- a/Multiprotocol/Multiprotocol.ino
+++ b/Multiprotocol/Multiprotocol.ino
@@ -1676,6 +1676,7 @@ void modules_reset()
 		usart_config_gpios_async(USART2,GPIOA,PIN_MAP[PA3].gpio_bit,GPIOA,PIN_MAP[PA2].gpio_bit,config);
 		LED2_output;
 		usart_set_baud_rate(USART2, STM32_PCLK1, baud);
+		USART2_BASE->CR1 &= ~ USART_CR1_TE;					// Disable transmit
 		usart_enable(USART2);
 	}
 	void usart3_begin(uint32_t baud,uint32_t config )
@@ -1683,6 +1684,7 @@ void modules_reset()
 		usart_init(USART3);
 		usart_config_gpios_async(USART3,GPIOB,PIN_MAP[PB11].gpio_bit,GPIOB,PIN_MAP[PB10].gpio_bit,config);
 		usart_set_baud_rate(USART3, STM32_PCLK1, baud);
+		USART3_BASE->CR1 &= ~ USART_CR1_RE;					// Disable receive
 		usart_enable(USART3);
 	}
 	void init_HWTimer()
diff --git a/Multiprotocol/Telemetry.ino b/Multiprotocol/Telemetry.ino
index e1aef48..c6b19f0 100644
--- a/Multiprotocol/Telemetry.ino
+++ b/Multiprotocol/Telemetry.ino
@@ -1159,6 +1159,12 @@ void TelemetryUpdate()
 				}
 		#ifdef STM32_BOARD	
 			}
+			else if(USART3_BASE->SR & USART_SR_RXNE)
+			{ //Should not get here...
+				uint8_t dummy = USART3_BASE->DR;
+				dummy++;
+				USART3_BASE->CR1 &= ~ USART_CR1_RE;		// Disable receive
+			}
 		#endif		
 	}
 #else	//BASH_SERIAL