Working on initial uart console

sd_logger.cfg

@@ -483,6 +483,19 @@ Task.idleTaskStackSize = 512;
 Task.numPriorities = 16;
 
 
+/* ================ Task creation ================ */
+/*
+ * Create all statically allocated tasks in this project.
+ */
+var Task = xdc.useModule('ti.sysbios.knl.Task');
+/*
+ * Add all required tasks for this program.
+ */
+var uartTaskParams = new Task.Params();
+uartTaskParams.stackSize = 512;
+uartTaskParams.instance.name = "uartTask";
+Program.global.uart_task = Task.create('&uartTaskEntry', uartTaskParams);
+
 
 /* ================ Text configuration ================ */
 var Text = xdc.useModule('xdc.runtime.Text');
@@ -536,4 +549,4 @@ driversConfig.libType = driversConfig.LibType_NonInstrumented;
 
 
 
-/* ================ Application Specific Instances ================ */
+/* ================ Application Specific Instances ================ */

uart_console.c

@@ -0,0 +1,66 @@
+/*
+ * @file uart_console.c
+ * Implements a UART console on the built in UART device, allowing for
+ * a user to view and manipulate the state of the logger.
+ */
+
+/* XDCtools Header files */
+#include <xdc/std.h>
+#include <xdc/runtime/System.h>
+
+/* BIOS Header files */
+#include <ti/sysbios/BIOS.h>
+#include <ti/sysbios/knl/Task.h>
+
+/* TI-RTOS Header files */
+#include <ti/drivers/GPIO.h>
+#include <ti/drivers/UART.h>
+
+/* Board-specific functions */
+#include "Board.h"
+
+// UART configuration.
+#define BAUD_RATE 115200
+#define UART_DEV Board_UART0
+
+UART_Handle uart;
+UART_Params params;
+
+/*
+ * PreOS Task for UART console. Sets up uart instance for data transmission,
+ * and creates UART console task.
+ * UART device on linux will be ttyACM0.
+ * This code MUST be called before the BIOS is started.
+ */
+void uart_prebios(void)
+{
+    Board_initGPIO();
+    Board_initUART();
+    params.readDataMode = UART_DATA_BINARY;
+    params.writeDataMode = UART_DATA_BINARY;
+    // Block reads until newline received.
+    params.readReturnMode = UART_RETURN_NEWLINE;
+    // Echo all read characters back
+    params.readEcho = UART_ECHO_ON;
+    params.baudRate = BAUD_RATE;
+    uart = UART_open(UART_DEV, &params);
+    if (uart == NULL) {
+        System_abort("Error opening the UART device");
+    }
+    System_printf("Setup UART Device\n");
+    System_flush();
+}
+
+
+/*
+ * Task entry for the UART console handler. This task is created statically,
+ * see the "Task creation" section of the cfg file.
+ * @param arg0 unused
+ * @param arg1 unused
+ */
+void uartTaskEntry(UArg arg0, UArg arg1)
+{
+    System_printf("UART task starting\n");
+    System_flush();
+}
+