From 0382f7ac36b2faf91995e69403ccf7e02db236ad Mon Sep 17 00:00:00 2001
From: Bernhard Tittelbach <xro@realraum.at>
Date: Wed, 15 Feb 2012 01:09:13 +0000
Subject: some random rx

git-svn-id: https://svn.spreadspace.org/mur.sat@247 7de4ea59-55d0-425e-a1af-a3118ea81d4c
---
 hardware/cmx589a_teensy_test/Makefile  |  2 +-
 hardware/cmx589a_teensy_test/cmx589a.c | 91 +++++++++++++++-------------------
 hardware/cmx589a_teensy_test/uart.c    |  9 +++-
 3 files changed, 48 insertions(+), 54 deletions(-)

(limited to 'hardware/cmx589a_teensy_test')

diff --git a/hardware/cmx589a_teensy_test/Makefile b/hardware/cmx589a_teensy_test/Makefile
index 6194ad8..0640c09 100644
--- a/hardware/cmx589a_teensy_test/Makefile
+++ b/hardware/cmx589a_teensy_test/Makefile
@@ -272,7 +272,7 @@ LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
 AVRDUDE_PROGRAMMER = stk500v2
 
 # com1 = serial port. Use lpt1 to connect to parallel port.
-AVRDUDE_PORT = com1    # programmer connected to serial device
+AVRDUDE_PORT =  /dev/    # programmer connected to serial device
 
 AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
 #AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
diff --git a/hardware/cmx589a_teensy_test/cmx589a.c b/hardware/cmx589a_teensy_test/cmx589a.c
index c444abb..ebeeca6 100644
--- a/hardware/cmx589a_teensy_test/cmx589a.c
+++ b/hardware/cmx589a_teensy_test/cmx589a.c
@@ -43,6 +43,13 @@
 #define ExtInt1On   EIMSK |= 1 << INT1
 #define ExtInt1Config   EICRA  |= (1 << ISC10 ) |  ( 1 << ISC11)
 
+#define UART_SET_DEFAULT      UCSR1C = 0
+#define UART_SET_8BIT      UCSR1C |= (1 << UMSEL10) | (1 << UCSZ10) | (1 << UCSZ11) 
+#define UART_SET_EXT_CLK  XCK1_DDR &= ~(1<<XCK1)
+
+
+
+
 //#define INIT_COUNTER_0  TCNT0 = 0
 //#define SET_CTC_MODE    WGM &= !7; WGM |= 2
 //#define SET_EXT_FREQ_5_3_MHZ    OCR0A = 3
@@ -52,33 +59,33 @@ unsigned int snr_rsii_counter = 0;
 ISR(INT1_vect)
 {
   snr_rsii_counter++;
+  
+  return 0;
 }
 
+#define BAUD_RATE 9600
 
-
-void send_str(const char *s);
-uint8_t recv_str(char *buf, uint8_t size);
-void parse_and_execute_command(const char *buf, uint8_t num);
-
-#if 0
-// Very simple character echo test
-int main(void)
+// write a string to the uart
+#define uart_print(s) uart_print_P(PSTR(s))
+void uart_print_P(const char *str)
 {
-	CPU_PRESCALE(0);
-	usb_init();
+	char c;
 	while (1) {
-		int n = usb_serial_getchar();
-		if (n >= 0) usb_serial_putchar(n);
+		c = pgm_read_byte(str++);
+		if (!c) break;
+		uart_putchar(c);
 	}
 }
 
-#else
+void send_str(const char *s);
+uint8_t recv_str(char *buf, uint8_t size);
+void parse_and_execute_command(const char *buf, uint8_t num);
 
 // Basic command interpreter for controlling port pins
 int main(void)
 {
 	char buf[32];
-	uint8_t n;
+	uint8_t n, c;
 
 	// set for 16 MHz clock, and turn on the LED
 	CPU_PRESCALE(0);
@@ -90,13 +97,28 @@ int main(void)
     ExtInt1Config;
   
     PB3_SET_OUTPUT;
-    PB3_TX_DISABLE;
+    //PB3_TX_DISABLE;
+    PB3_TX_ENABLE;
+  
+  	usb_init();
+	uart_init(BAUD_RATE);
+
 
+	while (1) {
+		if (uart_available()) {
+			c = uart_getchar();
+          
+		}
+        uart_print("TEST\r\n");
+	}
+    return 0;
+    
+    //END
+  
     // initialize the USB, and then wait for the host
 	// to set configuration.  If the Teensy is powered
 	// without a PC connected to the USB port, this 
 	// will wait forever.
-	usb_init();
 	while (!usb_configured()) /* wait */ ;
 	_delay_ms(1000);
 
@@ -128,7 +150,7 @@ int main(void)
 		}
 	}
 }
-#endif
+
 
 // Send a string to the USB serial port.  The string must be in
 // flash memory, using PSTR
@@ -243,38 +265,3 @@ void parse_and_execute_command(const char *buf, uint8_t num)
 	send_str(PSTR("\", must be ? or =\r\n"));
 }
 
-
-#define BAUD_RATE 9600
-
-//~ // write a string to the uart
-//~ #define uart_print(s) uart_print_P(PSTR(s))
-//~ void uart_print_P(const char *str)
-//~ {
-	//~ char c;
-	//~ while (1) {
-		//~ c = pgm_read_byte(str++);
-		//~ if (!c) break;
-		//~ uart_putchar(c);
-	//~ }
-//~ }
-
-//~ // A very basic example...
-//~ // when the user types a character, print it back
-//~ int main(void)
-//~ {
-	//~ uint8_t c;
-
-	//~ CPU_PRESCALE(0);  // run at 16 MHz
-	//~ uart_init(BAUD_RATE);
-	//~ uart_print("UART Example\r\n");
-	//~ while (1) {
-		//~ if (uart_available()) {
-			//~ c = uart_getchar();
-			//~ uart_print("Byte: ");
-			//~ uart_putchar(c);
-			//~ uart_putchar('\r');
-			//~ uart_putchar('\n');
-		//~ }
-	//~ }
-//~ }
-
diff --git a/hardware/cmx589a_teensy_test/uart.c b/hardware/cmx589a_teensy_test/uart.c
index 2fdcc43..94afe7e 100644
--- a/hardware/cmx589a_teensy_test/uart.c
+++ b/hardware/cmx589a_teensy_test/uart.c
@@ -48,9 +48,16 @@ void uart_init(uint32_t baud)
 	UBRR1 = (F_CPU / 4 / baud - 1) / 2;
 	UCSR1A = (1<<U2X1);
 	UCSR1B = (1<<RXEN1) | (1<<TXEN1) | (1<<RXCIE1);
-	UCSR1C = (1<<UCSZ11) | (1<<UCSZ10);
+	//UCSR1C = (1<<UCSZ11) | (1<<UCSZ10);
 	tx_buffer_head = tx_buffer_tail = 0;
 	rx_buffer_head = rx_buffer_tail = 0;
+  
+    UCSR1C = 0;
+    UCSR1C |= (1 << UMSEL10) | (1 << UCSZ10) | (1 << UCSZ11);
+    //use external clk by settting PD5 aka XCK1 to Input
+    DDRD |= 1<<5;
+    
+  
 	sei();
 }
 
-- 
cgit v1.2.3