Diff: dn_uart.cpp

Revision:

0:8ca1e814a851

Child:

1:b909b8399252

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dn_uart.cpp	Wed May 02 09:26:10 2018 +0000
@@ -0,0 +1,81 @@
+/*
+Copyright (c) 2016, Dust Networks. All rights reserved.
+
+Port of the uart module to the NUCLEO-L053R8.
+
+\license See attached DN_LICENSE.txt.
+*/
+
+#include "dn_uart.h"
+#include "dn_ipmt.h"
+#include "dn_debug.h"
+#include "mbed.h"
+
+
+//=========================== defines =========================================
+
+// Set correct pins for external UART on your board (USART1 for NUCLEO-L053R8)
+#define UART_MOTE_TX	USBTX
+#define UART_MOTE_RX	USBRX
+
+
+//=========================== variables =======================================
+
+typedef struct {
+	dn_uart_rxByte_cbt	ipmt_uart_rxByte_cb;
+} dn_uart_vars_t;
+
+static dn_uart_vars_t dn_uart_vars;
+static Serial serialMote(UART_MOTE_TX, UART_MOTE_RX);
+
+
+//=========================== prototypes ======================================
+
+void moteRXinterrupt(void);
+
+//=========================== public ==========================================
+
+void dn_uart_init(dn_uart_rxByte_cbt rxByte_cb)
+{
+	// Store RX callback function
+	dn_uart_vars.ipmt_uart_rxByte_cb = rxByte_cb;
+	
+	/* Default configuration for Serial:
+		- 8 bit character size
+		- No Parity
+		- 1 bit stop bit
+		- No flow control
+		- 9600 baudrate
+	Hence, we only need to change the baudrate */
+	serialMote.baud(115200);
+	
+	// Attach RX interrupt handler
+    serialMote.attach(&moteRXinterrupt, Serial::RxIrq);
+
+	//debug("SMIP Serial Initialized");
+}
+
+void dn_uart_txByte(uint8_t byte)
+{
+	serialMote.putc(byte);
+}
+
+void dn_uart_txFlush()
+{
+	// Nothing to do since we push byte-by-byte
+}
+
+//=========================== private =========================================
+
+//=========================== helpers =========================================
+
+//=========================== interrupt handlers ==============================
+
+void moteRXinterrupt(void)
+{
+    while (serialMote.readable())
+    {
+        dn_uart_vars.ipmt_uart_rxByte_cb(serialMote.getc());
+    }
+}
+