add libs

lib_uart/examples/uart_demo/src/main.xc

@@ -0,0 +1,56 @@
+// Copyright (c) 2014-2016, XMOS Ltd, All rights reserved
+#include <xs1.h>
+#include <platform.h>
+#include <print.h>
+#include <uart.h>
+#include <stddef.h>
+
+// Port declarations
+port p_uart_rx = on tile[0] : XS1_PORT_1A;
+port p_uart_tx = on tile[0] : XS1_PORT_1B;
+
+#define BAUD_RATE 115200
+#define RX_BUFFER_SIZE 64
+
+/* This function performs the main "application" that outputs and reads
+   some bytes over UART */
+void app(client uart_tx_if uart_tx, client uart_rx_if uart_rx)
+{
+  uint8_t byte;
+  printstrln("Test started");
+  byte = 0;
+  for (size_t i = 0; i < 20; i++) {
+      printstr("Echo 10 bytes... ");
+      for(size_t j = 0; j < 10; j++) {
+          uart_tx.write(byte);
+          byte = byte + 1;
+      }
+      for(size_t j = 0; j < 10; j++) {
+          printhex(uart_rx.wait_for_data_and_read());
+      }
+  }
+  printstrln(". Done.");
+}
+
+void test() { while (1);}
+
+/* "main" function that sets up two uarts and the application */
+int main() {
+  interface uart_rx_if i_rx;
+  interface uart_tx_if i_tx;
+  input_gpio_if i_gpio_rx;
+  output_gpio_if i_gpio_tx[1];
+  par {
+    on tile[0]: test();
+    on tile[0]: output_gpio(i_gpio_tx, 1, p_uart_tx, null);
+    on tile[0]: uart_tx(i_tx, null,
+                        BAUD_RATE, UART_PARITY_NONE, 8, 1,
+                        i_gpio_tx[0]);
+    on tile[0].core[0] : input_gpio_1bit_with_events(i_gpio_rx, p_uart_rx);
+    on tile[0].core[0] : uart_rx(i_rx, null, RX_BUFFER_SIZE,
+                                 BAUD_RATE, UART_PARITY_NONE, 8, 1,
+                                 i_gpio_rx);
+    on tile[0]: app(i_tx, i_rx);
+  }
+  return 0;
+}