Diff: WIFI_Driver/nordic/simple_uart.c

Revision:

0:a2de37bf5f3d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WIFI_Driver/nordic/simple_uart.c	Tue Jun 09 06:04:13 2015 +0000
@@ -0,0 +1,112 @@
+/* Copyright (c) 2009 Nordic Semiconductor. All Rights Reserved.
+ *
+ * The information contained herein is property of Nordic Semiconductor ASA.
+ * Terms and conditions of usage are described in detail in NORDIC
+ * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
+ *
+ * Licensees are granted free, non-transferable use of the information. NO
+ * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
+ * the file.
+ *
+ */
+
+#include <stdint.h>
+
+//#include "nrf.h"  //command by Tsungta @12/12 when trying to porting on mbed online compilier
+#include "simple_uart.h"
+//#include "nrf_delay.h"
+#include "nrf_gpio.h"
+
+extern uint8_t rx_isr;
+extern uint8_t hif;
+extern uint8_t udp_client_test;
+uint8_t simple_uart_get(void)
+{
+  while (NRF_UART0->EVENTS_RXDRDY != 1 && rx_isr == 0 && hif == 0 && udp_client_test == 0)
+  {
+    // Wait for RXD data to be received
+  }
+  
+  NRF_UART0->EVENTS_RXDRDY = 0;
+  return (uint8_t)NRF_UART0->RXD;
+}
+
+//bool simple_uart_get_with_timeout(int32_t timeout_ms, uint8_t *rx_data)
+//{
+//  bool ret = true;
+//  
+//  while (NRF_UART0->EVENTS_RXDRDY != 1)
+//  {
+//    if (timeout_ms-- >= 0)
+//    {
+//      // wait in 1ms chunk before checking for status
+//      nrf_delay_us(1000);
+//    }
+//    else
+//    {
+//      ret = false;
+//      break;
+//    }
+//  }  // Wait for RXD data to be received
+//
+//  if (timeout_ms >= 0)
+//  {
+//    // clear the event and set rx_data with received byte
+//      NRF_UART0->EVENTS_RXDRDY = 0;
+//      *rx_data = (uint8_t)NRF_UART0->RXD;
+//  }
+//
+//  return ret;
+//}
+
+void simple_uart_put(uint8_t cr)
+{
+  NRF_UART0->TXD = (uint8_t)cr;
+
+  while (NRF_UART0->EVENTS_TXDRDY!=1)
+  {
+    // Wait for TXD data to be sent
+  }
+
+  NRF_UART0->EVENTS_TXDRDY=0;
+}
+
+void simple_uart_putstring(const uint8_t *str)
+{
+  uint_fast8_t i = 0;
+  uint8_t ch = str[i++];
+  while (ch != '\0')
+  {
+    simple_uart_put(ch);
+    ch = str[i++];
+  }
+}
+
+void simple_uart_config(  uint8_t rts_pin_number,
+                          uint8_t txd_pin_number,
+                          uint8_t cts_pin_number,
+                          uint8_t rxd_pin_number,
+                          bool hwfc)
+{
+  nrf_gpio_cfg_output(txd_pin_number);
+  nrf_gpio_cfg_input(rxd_pin_number, NRF_GPIO_PIN_NOPULL);  
+
+  NRF_UART0->PSELTXD = txd_pin_number;
+  NRF_UART0->PSELRXD = rxd_pin_number;
+
+  if (hwfc)
+  {
+    nrf_gpio_cfg_output(rts_pin_number);
+    nrf_gpio_cfg_input(cts_pin_number, NRF_GPIO_PIN_NOPULL);
+    NRF_UART0->PSELCTS = cts_pin_number;
+    NRF_UART0->PSELRTS = rts_pin_number;
+    NRF_UART0->CONFIG  = (UART_CONFIG_HWFC_Enabled << UART_CONFIG_HWFC_Pos);
+  }
+
+//  NRF_UART0->BAUDRATE         = (UART_BAUDRATE_BAUDRATE_Baud38400 << UART_BAUDRATE_BAUDRATE_Pos);
+  NRF_UART0->BAUDRATE         = (UART_BAUDRATE_BAUDRATE_Baud115200 << UART_BAUDRATE_BAUDRATE_Pos);
+  NRF_UART0->ENABLE           = (UART_ENABLE_ENABLE_Enabled << UART_ENABLE_ENABLE_Pos);
+  NRF_UART0->TASKS_STARTTX    = 1;
+  NRF_UART0->TASKS_STARTRX    = 1;
+  NRF_UART0->EVENTS_RXDRDY    = 0;
+}