MacroRat / MouseCode

Mouse code for the MacroRat

Dependencies:   ITG3200 QEI

mbed-dev/targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_uart.c@46:b156ef445742, 2017-06-03 (annotated)

Committer:
sahilmgandhi
Date:
Sat Jun 03 00:22:44 2017 +0000
Revision:
46:b156ef445742
Parent:
18:6a4db94011d3 
Final code for internal battlebot competition.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sahilmgandhi 18:6a4db94011d3 1 /**************************************************************************//**
sahilmgandhi 18:6a4db94011d3 2 * @file uart.c
sahilmgandhi 18:6a4db94011d3 3 * @version V1.00
sahilmgandhi 18:6a4db94011d3 4 * $Revision: 14 $
sahilmgandhi 18:6a4db94011d3 5 * $Date: 15/11/26 10:47a $
sahilmgandhi 18:6a4db94011d3 6 * @brief NUC472/NUC442 UART driver source file
sahilmgandhi 18:6a4db94011d3 7 *
sahilmgandhi 18:6a4db94011d3 8 * @note
sahilmgandhi 18:6a4db94011d3 9 * Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved.
sahilmgandhi 18:6a4db94011d3 10 *****************************************************************************/
sahilmgandhi 18:6a4db94011d3 11
sahilmgandhi 18:6a4db94011d3 12 #include <stdio.h>
sahilmgandhi 18:6a4db94011d3 13 #include "NUC472_442.h"
sahilmgandhi 18:6a4db94011d3 14
sahilmgandhi 18:6a4db94011d3 15 /*---------------------------------------------------------------------------------------------------------*/
sahilmgandhi 18:6a4db94011d3 16 /* Includes of local headers */
sahilmgandhi 18:6a4db94011d3 17 /*---------------------------------------------------------------------------------------------------------*/
sahilmgandhi 18:6a4db94011d3 18
sahilmgandhi 18:6a4db94011d3 19
sahilmgandhi 18:6a4db94011d3 20 /** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver
sahilmgandhi 18:6a4db94011d3 21 @{
sahilmgandhi 18:6a4db94011d3 22 */
sahilmgandhi 18:6a4db94011d3 23
sahilmgandhi 18:6a4db94011d3 24 /** @addtogroup NUC472_442_UART_Driver UART Driver
sahilmgandhi 18:6a4db94011d3 25 @{
sahilmgandhi 18:6a4db94011d3 26 */
sahilmgandhi 18:6a4db94011d3 27
sahilmgandhi 18:6a4db94011d3 28
sahilmgandhi 18:6a4db94011d3 29 /** @addtogroup NUC472_442_UART_EXPORTED_FUNCTIONS UART Exported Functions
sahilmgandhi 18:6a4db94011d3 30 @{
sahilmgandhi 18:6a4db94011d3 31 */
sahilmgandhi 18:6a4db94011d3 32
sahilmgandhi 18:6a4db94011d3 33
sahilmgandhi 18:6a4db94011d3 34 /**
sahilmgandhi 18:6a4db94011d3 35 * @brief The function is used to clear UART specified interrupt flag.
sahilmgandhi 18:6a4db94011d3 36 *
sahilmgandhi 18:6a4db94011d3 37 * @param[in] uart The base address of UART module.
sahilmgandhi 18:6a4db94011d3 38 * @param[in] u32InterruptFlag The specified interrupt of UART module..
sahilmgandhi 18:6a4db94011d3 39 *
sahilmgandhi 18:6a4db94011d3 40 * @return None
sahilmgandhi 18:6a4db94011d3 41 */
sahilmgandhi 18:6a4db94011d3 42 void UART_ClearIntFlag(UART_T* uart , uint32_t u32InterruptFlag)
sahilmgandhi 18:6a4db94011d3 43 {
sahilmgandhi 18:6a4db94011d3 44 if(u32InterruptFlag & UART_INTSTS_RLSINT_Msk) { /* clear Receive Line Status Interrupt */
sahilmgandhi 18:6a4db94011d3 45 uart->FIFOSTS |= UART_FIFOSTS_BIF_Msk | UART_FIFOSTS_FEF_Msk | UART_FIFOSTS_PEF_Msk;
sahilmgandhi 18:6a4db94011d3 46 uart->FIFOSTS |= UART_FIFOSTS_ADDRDETF_Msk;
sahilmgandhi 18:6a4db94011d3 47 }
sahilmgandhi 18:6a4db94011d3 48
sahilmgandhi 18:6a4db94011d3 49 if(u32InterruptFlag & UART_INTSTS_MODEMINT_Msk) /* clear Modem Interrupt */
sahilmgandhi 18:6a4db94011d3 50 uart->MODEMSTS |= UART_MODEMSTS_CTSDETF_Msk;
sahilmgandhi 18:6a4db94011d3 51
sahilmgandhi 18:6a4db94011d3 52 if(u32InterruptFlag & UART_INTSTS_BUFERRINT_Msk) { /* clear Buffer Error Interrupt */
sahilmgandhi 18:6a4db94011d3 53 uart->FIFOSTS |= UART_FIFOSTS_RXOVIF_Msk | UART_FIFOSTS_TXOVIF_Msk;
sahilmgandhi 18:6a4db94011d3 54 }
sahilmgandhi 18:6a4db94011d3 55
sahilmgandhi 18:6a4db94011d3 56 if(u32InterruptFlag & UART_INTSTS_RXTOINT_Msk) /* clear Modem Interrupt */
sahilmgandhi 18:6a4db94011d3 57 uart->INTSTS |= UART_INTSTS_RXTOIF_Msk;
sahilmgandhi 18:6a4db94011d3 58
sahilmgandhi 18:6a4db94011d3 59 }
sahilmgandhi 18:6a4db94011d3 60
sahilmgandhi 18:6a4db94011d3 61
sahilmgandhi 18:6a4db94011d3 62 /**
sahilmgandhi 18:6a4db94011d3 63 * @brief The function is used to disable UART.
sahilmgandhi 18:6a4db94011d3 64 *
sahilmgandhi 18:6a4db94011d3 65 * @param[in] uart The base address of UART module.
sahilmgandhi 18:6a4db94011d3 66 *
sahilmgandhi 18:6a4db94011d3 67 * @return None
sahilmgandhi 18:6a4db94011d3 68 */
sahilmgandhi 18:6a4db94011d3 69 void UART_Close(UART_T* uart)
sahilmgandhi 18:6a4db94011d3 70 {
sahilmgandhi 18:6a4db94011d3 71 uart->INTEN = 0;
sahilmgandhi 18:6a4db94011d3 72 }
sahilmgandhi 18:6a4db94011d3 73
sahilmgandhi 18:6a4db94011d3 74
sahilmgandhi 18:6a4db94011d3 75 /**
sahilmgandhi 18:6a4db94011d3 76 * @brief The function is used to disable UART auto flow control.
sahilmgandhi 18:6a4db94011d3 77 *
sahilmgandhi 18:6a4db94011d3 78 * @param[in] uart The base address of UART module.
sahilmgandhi 18:6a4db94011d3 79 *
sahilmgandhi 18:6a4db94011d3 80 * @return None
sahilmgandhi 18:6a4db94011d3 81 */
sahilmgandhi 18:6a4db94011d3 82 void UART_DisableFlowCtrl(UART_T* uart)
sahilmgandhi 18:6a4db94011d3 83 {
sahilmgandhi 18:6a4db94011d3 84 uart->INTEN &= ~(UART_INTEN_ATORTSEN_Msk | UART_INTEN_ATOCTSEN_Msk);
sahilmgandhi 18:6a4db94011d3 85 }
sahilmgandhi 18:6a4db94011d3 86
sahilmgandhi 18:6a4db94011d3 87
sahilmgandhi 18:6a4db94011d3 88 /**
sahilmgandhi 18:6a4db94011d3 89 * @brief The function is used to disable UART specified interrupt and disable NVIC UART IRQ.
sahilmgandhi 18:6a4db94011d3 90 *
sahilmgandhi 18:6a4db94011d3 91 * @param[in] uart The base address of UART module.
sahilmgandhi 18:6a4db94011d3 92 * @param[in] u32InterruptFlag The specified interrupt of UART module.
sahilmgandhi 18:6a4db94011d3 93 * - \ref UART_INTEN_TOCNTEN_Msk : Rx Time Out interrupt
sahilmgandhi 18:6a4db94011d3 94 * - \ref UART_INTEN_WKCTSIEN_Msk : Wakeup interrupt
sahilmgandhi 18:6a4db94011d3 95 * - \ref UART_INTEN_BUFERRIEN_Msk : Buffer Error interrupt
sahilmgandhi 18:6a4db94011d3 96 * - \ref UART_INTEN_RXTOIEN_Msk : Rx time-out interrupt
sahilmgandhi 18:6a4db94011d3 97 * - \ref UART_INTEN_MODEMIEN_Msk : Modem interrupt
sahilmgandhi 18:6a4db94011d3 98 * - \ref UART_INTEN_RLSIEN_Msk : Rx Line status interrupt
sahilmgandhi 18:6a4db94011d3 99 * - \ref UART_INTEN_THREIEN_Msk : Tx empty interrupt
sahilmgandhi 18:6a4db94011d3 100 * - \ref UART_INTEN_RDAIEN_Msk : Rx ready interrupt
sahilmgandhi 18:6a4db94011d3 101 *
sahilmgandhi 18:6a4db94011d3 102 * @return None
sahilmgandhi 18:6a4db94011d3 103 */
sahilmgandhi 18:6a4db94011d3 104 void UART_DisableInt(UART_T* uart, uint32_t u32InterruptFlag )
sahilmgandhi 18:6a4db94011d3 105 {
sahilmgandhi 18:6a4db94011d3 106 uart->INTEN &= ~ u32InterruptFlag;
sahilmgandhi 18:6a4db94011d3 107 }
sahilmgandhi 18:6a4db94011d3 108
sahilmgandhi 18:6a4db94011d3 109
sahilmgandhi 18:6a4db94011d3 110
sahilmgandhi 18:6a4db94011d3 111 /**
sahilmgandhi 18:6a4db94011d3 112 * @brief The function is used to Enable UART auto flow control.
sahilmgandhi 18:6a4db94011d3 113 *
sahilmgandhi 18:6a4db94011d3 114 * @param[in] uart The base address of UART module.
sahilmgandhi 18:6a4db94011d3 115 *
sahilmgandhi 18:6a4db94011d3 116 * @return None
sahilmgandhi 18:6a4db94011d3 117 */
sahilmgandhi 18:6a4db94011d3 118 void UART_EnableFlowCtrl(UART_T* uart )
sahilmgandhi 18:6a4db94011d3 119 {
sahilmgandhi 18:6a4db94011d3 120 uart->MODEM |= UART_MODEM_RTSACTLV_Msk;
sahilmgandhi 18:6a4db94011d3 121 uart->MODEM &= ~UART_MODEM_RTS_Msk;
sahilmgandhi 18:6a4db94011d3 122 uart->MODEMSTS |= UART_MODEMSTS_CTSACTLV_Msk;
sahilmgandhi 18:6a4db94011d3 123 uart->INTEN |= UART_INTEN_ATORTSEN_Msk | UART_INTEN_ATOCTSEN_Msk;
sahilmgandhi 18:6a4db94011d3 124 }
sahilmgandhi 18:6a4db94011d3 125
sahilmgandhi 18:6a4db94011d3 126
sahilmgandhi 18:6a4db94011d3 127 /**
sahilmgandhi 18:6a4db94011d3 128 * @brief The function is used to enable UART specified interrupt and disable NVIC UART IRQ.
sahilmgandhi 18:6a4db94011d3 129 *
sahilmgandhi 18:6a4db94011d3 130 * @param[in] uart The base address of UART module.
sahilmgandhi 18:6a4db94011d3 131 * @param[in] u32InterruptFlag The specified interrupt of UART module:
sahilmgandhi 18:6a4db94011d3 132 * - \ref UART_INTEN_TOCNTEN_Msk : Rx Time Out interrupt
sahilmgandhi 18:6a4db94011d3 133 * - \ref UART_INTEN_WKCTSIEN_Msk : Wakeup interrupt
sahilmgandhi 18:6a4db94011d3 134 * - \ref UART_INTEN_BUFERRIEN_Msk : Buffer Error interrupt
sahilmgandhi 18:6a4db94011d3 135 * - \ref UART_INTEN_RXTOIEN_Msk : Rx time-out interrupt
sahilmgandhi 18:6a4db94011d3 136 * - \ref UART_INTEN_MODEMIEN_Msk : Modem interrupt
sahilmgandhi 18:6a4db94011d3 137 * - \ref UART_INTEN_RLSIEN_Msk : Rx Line status interrupt
sahilmgandhi 18:6a4db94011d3 138 * - \ref UART_INTEN_THREIEN_Msk : Tx empty interrupt
sahilmgandhi 18:6a4db94011d3 139 * - \ref UART_INTEN_RDAIEN_Msk : Rx ready interrupt
sahilmgandhi 18:6a4db94011d3 140 *
sahilmgandhi 18:6a4db94011d3 141 * @return None
sahilmgandhi 18:6a4db94011d3 142 */
sahilmgandhi 18:6a4db94011d3 143 void UART_EnableInt(UART_T* uart, uint32_t u32InterruptFlag )
sahilmgandhi 18:6a4db94011d3 144 {
sahilmgandhi 18:6a4db94011d3 145 uart->INTEN |= u32InterruptFlag;
sahilmgandhi 18:6a4db94011d3 146 }
sahilmgandhi 18:6a4db94011d3 147
sahilmgandhi 18:6a4db94011d3 148
sahilmgandhi 18:6a4db94011d3 149 /**
sahilmgandhi 18:6a4db94011d3 150 * @brief This function use to enable UART function and set baud-rate.
sahilmgandhi 18:6a4db94011d3 151 *
sahilmgandhi 18:6a4db94011d3 152 * @param[in] uart The base address of UART module.
sahilmgandhi 18:6a4db94011d3 153 * @param[in] u32baudrate The baudrate of UART module.
sahilmgandhi 18:6a4db94011d3 154 *
sahilmgandhi 18:6a4db94011d3 155 * @return None
sahilmgandhi 18:6a4db94011d3 156 */
sahilmgandhi 18:6a4db94011d3 157 void UART_Open(UART_T* uart, uint32_t u32baudrate)
sahilmgandhi 18:6a4db94011d3 158 {
sahilmgandhi 18:6a4db94011d3 159 uint8_t u8UartClkSrcSel;
sahilmgandhi 18:6a4db94011d3 160 uint32_t u32ClkTbl[4] = {__HXT, 0, __HIRC, __HIRC};
sahilmgandhi 18:6a4db94011d3 161 uint32_t u32Clk;
sahilmgandhi 18:6a4db94011d3 162 uint32_t u32Baud_Div;
sahilmgandhi 18:6a4db94011d3 163
sahilmgandhi 18:6a4db94011d3 164 u32ClkTbl[1] = CLK_GetPLLClockFreq();
sahilmgandhi 18:6a4db94011d3 165
sahilmgandhi 18:6a4db94011d3 166 u8UartClkSrcSel = (CLK->CLKSEL1 & CLK_CLKSEL1_UARTSEL_Msk) >> CLK_CLKSEL1_UARTSEL_Pos;
sahilmgandhi 18:6a4db94011d3 167
sahilmgandhi 18:6a4db94011d3 168 uart->FUNCSEL = UART_FUNCSEL_UART;
sahilmgandhi 18:6a4db94011d3 169 uart->LINE = UART_WORD_LEN_8 | UART_PARITY_NONE | UART_STOP_BIT_1;
sahilmgandhi 18:6a4db94011d3 170 uart->FIFO = UART_FIFO_RFITL_1BYTE | UART_FIFO_RTSTRGLV_1BYTE;
sahilmgandhi 18:6a4db94011d3 171
sahilmgandhi 18:6a4db94011d3 172 u32Clk = (u32ClkTbl[u8UartClkSrcSel]) / (((CLK->CLKDIV0 & CLK_CLKDIV0_UARTDIV_Msk) >> CLK_CLKDIV0_UARTDIV_Pos) + 1);
sahilmgandhi 18:6a4db94011d3 173
sahilmgandhi 18:6a4db94011d3 174 if(u32baudrate != 0) {
sahilmgandhi 18:6a4db94011d3 175 u32Baud_Div = UART_BAUD_MODE2_DIVIDER(u32Clk, u32baudrate);
sahilmgandhi 18:6a4db94011d3 176
sahilmgandhi 18:6a4db94011d3 177 if(u32Baud_Div > 0xFFFF)
sahilmgandhi 18:6a4db94011d3 178 uart->BAUD = (UART_BAUD_MODE0 | UART_BAUD_MODE0_DIVIDER(u32Clk, u32baudrate));
sahilmgandhi 18:6a4db94011d3 179 else
sahilmgandhi 18:6a4db94011d3 180 uart->BAUD = (UART_BAUD_MODE2 | u32Baud_Div);
sahilmgandhi 18:6a4db94011d3 181 }
sahilmgandhi 18:6a4db94011d3 182 }
sahilmgandhi 18:6a4db94011d3 183
sahilmgandhi 18:6a4db94011d3 184
sahilmgandhi 18:6a4db94011d3 185 /**
sahilmgandhi 18:6a4db94011d3 186 * @brief The function is used to read Rx data from RX FIFO and the data will be stored in pu8RxBuf.
sahilmgandhi 18:6a4db94011d3 187 *
sahilmgandhi 18:6a4db94011d3 188 * @param[in] uart The base address of UART module.
sahilmgandhi 18:6a4db94011d3 189 * @param[out] pu8RxBuf The buffer to receive the data of receive FIFO.
sahilmgandhi 18:6a4db94011d3 190 * @param[in] u32ReadBytes The the read bytes number of data.
sahilmgandhi 18:6a4db94011d3 191 *
sahilmgandhi 18:6a4db94011d3 192 * @return u32Count: Receive byte count
sahilmgandhi 18:6a4db94011d3 193 *
sahilmgandhi 18:6a4db94011d3 194 */
sahilmgandhi 18:6a4db94011d3 195 uint32_t UART_Read(UART_T* uart, uint8_t *pu8RxBuf, uint32_t u32ReadBytes)
sahilmgandhi 18:6a4db94011d3 196 {
sahilmgandhi 18:6a4db94011d3 197 uint32_t u32Count;
sahilmgandhi 18:6a4db94011d3 198
sahilmgandhi 18:6a4db94011d3 199 for(u32Count=0; u32Count < u32ReadBytes; u32Count++) {
sahilmgandhi 18:6a4db94011d3 200 if(uart->FIFOSTS & UART_FIFOSTS_RXEMPTY_Msk) { /* Check RX empty => failed */
sahilmgandhi 18:6a4db94011d3 201 return u32Count;
sahilmgandhi 18:6a4db94011d3 202 }
sahilmgandhi 18:6a4db94011d3 203 pu8RxBuf[u32Count] = uart->DAT; /* Get Data from UART RX */
sahilmgandhi 18:6a4db94011d3 204 }
sahilmgandhi 18:6a4db94011d3 205
sahilmgandhi 18:6a4db94011d3 206 return u32Count;
sahilmgandhi 18:6a4db94011d3 207 }
sahilmgandhi 18:6a4db94011d3 208
sahilmgandhi 18:6a4db94011d3 209
sahilmgandhi 18:6a4db94011d3 210 /**
sahilmgandhi 18:6a4db94011d3 211 * @brief This function use to config UART line setting.
sahilmgandhi 18:6a4db94011d3 212 *
sahilmgandhi 18:6a4db94011d3 213 * @param[in] uart The base address of UART module.
sahilmgandhi 18:6a4db94011d3 214 * @param[in] u32baudrate The register value of baudrate of UART module.
sahilmgandhi 18:6a4db94011d3 215 * if u32baudrate = 0, UART baudrate will not change.
sahilmgandhi 18:6a4db94011d3 216 * @param[in] u32data_width The data length of UART module. [ \ref UART_WORD_LEN_5 / \ref UART_WORD_LEN_6 / \ref UART_WORD_LEN_7 / \ref UART_WORD_LEN_8]
sahilmgandhi 18:6a4db94011d3 217 * @param[in] u32parity The parity setting (odd/even/none) of UART module. [ \ref UART_PARITY_NONE / \ref UART_PARITY_ODD /
sahilmgandhi 18:6a4db94011d3 218 * \ref UART_PARITY_EVEN / \ref UART_PARITY_MARK / \ref UART_PARITY_SPACE]
sahilmgandhi 18:6a4db94011d3 219 * @param[in] u32stop_bits The stop bit length (1/1.5/2 bit) of UART module. [ \ref UART_STOP_BIT_1 / \ref UART_STOP_BIT_1_5 / \ref UART_STOP_BIT_2]
sahilmgandhi 18:6a4db94011d3 220 *
sahilmgandhi 18:6a4db94011d3 221 * @return None
sahilmgandhi 18:6a4db94011d3 222 */
sahilmgandhi 18:6a4db94011d3 223 void UART_SetLine_Config(UART_T* uart, uint32_t u32baudrate, uint32_t u32data_width, uint32_t u32parity, uint32_t u32stop_bits)
sahilmgandhi 18:6a4db94011d3 224 {
sahilmgandhi 18:6a4db94011d3 225 uint8_t u8UartClkSrcSel;
sahilmgandhi 18:6a4db94011d3 226 uint32_t u32ClkTbl[4] = {__HXT, 0, __HIRC, __HIRC};
sahilmgandhi 18:6a4db94011d3 227 uint32_t u32Clk;
sahilmgandhi 18:6a4db94011d3 228 uint32_t u32Baud_Div = 0;
sahilmgandhi 18:6a4db94011d3 229
sahilmgandhi 18:6a4db94011d3 230 u32ClkTbl[1] = CLK_GetPLLClockFreq();
sahilmgandhi 18:6a4db94011d3 231
sahilmgandhi 18:6a4db94011d3 232 u8UartClkSrcSel = (CLK->CLKSEL1 & CLK_CLKSEL1_UARTSEL_Msk) >> CLK_CLKSEL1_UARTSEL_Pos;
sahilmgandhi 18:6a4db94011d3 233
sahilmgandhi 18:6a4db94011d3 234 u32Clk = (u32ClkTbl[u8UartClkSrcSel]) / (((CLK->CLKDIV0 & CLK_CLKDIV0_UARTDIV_Msk) >> CLK_CLKDIV0_UARTDIV_Pos) + 1);
sahilmgandhi 18:6a4db94011d3 235
sahilmgandhi 18:6a4db94011d3 236 if(u32baudrate != 0) {
sahilmgandhi 18:6a4db94011d3 237 u32Baud_Div = UART_BAUD_MODE2_DIVIDER(u32Clk, u32baudrate);
sahilmgandhi 18:6a4db94011d3 238
sahilmgandhi 18:6a4db94011d3 239 if(u32Baud_Div > 0xFFFF)
sahilmgandhi 18:6a4db94011d3 240 uart->BAUD = (UART_BAUD_MODE0 | UART_BAUD_MODE0_DIVIDER(u32Clk, u32baudrate));
sahilmgandhi 18:6a4db94011d3 241 else
sahilmgandhi 18:6a4db94011d3 242 uart->BAUD = (UART_BAUD_MODE2 | u32Baud_Div);
sahilmgandhi 18:6a4db94011d3 243 }
sahilmgandhi 18:6a4db94011d3 244
sahilmgandhi 18:6a4db94011d3 245 uart->LINE = u32data_width | u32parity | u32stop_bits;
sahilmgandhi 18:6a4db94011d3 246 }
sahilmgandhi 18:6a4db94011d3 247
sahilmgandhi 18:6a4db94011d3 248
sahilmgandhi 18:6a4db94011d3 249 /**
sahilmgandhi 18:6a4db94011d3 250 * @brief This function use to set Rx timeout count.
sahilmgandhi 18:6a4db94011d3 251 *
sahilmgandhi 18:6a4db94011d3 252 * @param[in] uart The base address of UART module.
sahilmgandhi 18:6a4db94011d3 253 * @param[in] u32TOC Rx timeout counter.
sahilmgandhi 18:6a4db94011d3 254 *
sahilmgandhi 18:6a4db94011d3 255 * @return None
sahilmgandhi 18:6a4db94011d3 256 */
sahilmgandhi 18:6a4db94011d3 257 void UART_SetTimeoutCnt(UART_T* uart, uint32_t u32TOC)
sahilmgandhi 18:6a4db94011d3 258 {
sahilmgandhi 18:6a4db94011d3 259 uart->TOUT = (uart->TOUT & ~UART_TOUT_TOIC_Msk)| (u32TOC);
sahilmgandhi 18:6a4db94011d3 260 uart->INTEN |= UART_INTEN_TOCNTEN_Msk;
sahilmgandhi 18:6a4db94011d3 261 }
sahilmgandhi 18:6a4db94011d3 262
sahilmgandhi 18:6a4db94011d3 263
sahilmgandhi 18:6a4db94011d3 264 /**
sahilmgandhi 18:6a4db94011d3 265 * @brief The function is used to configure IrDA relative settings. It consists of TX or RX mode and baudrate.
sahilmgandhi 18:6a4db94011d3 266 *
sahilmgandhi 18:6a4db94011d3 267 * @param[in] uart The base address of UART module.
sahilmgandhi 18:6a4db94011d3 268 * @param[in] u32Buadrate The baudrate of UART module.
sahilmgandhi 18:6a4db94011d3 269 * @param[in] u32Direction The direction(transmit:1/receive:0) of UART module in IrDA mode.
sahilmgandhi 18:6a4db94011d3 270 *
sahilmgandhi 18:6a4db94011d3 271 * @return None
sahilmgandhi 18:6a4db94011d3 272 */
sahilmgandhi 18:6a4db94011d3 273 void UART_SelectIrDAMode(UART_T* uart, uint32_t u32Buadrate, uint32_t u32Direction)
sahilmgandhi 18:6a4db94011d3 274 {
sahilmgandhi 18:6a4db94011d3 275 uint8_t u8UartClkSrcSel;
sahilmgandhi 18:6a4db94011d3 276 uint32_t u32ClkTbl[4] = {__HXT, 0, __HIRC, __HIRC};
sahilmgandhi 18:6a4db94011d3 277 uint32_t u32Clk;
sahilmgandhi 18:6a4db94011d3 278
sahilmgandhi 18:6a4db94011d3 279 u32ClkTbl[1] = CLK_GetPLLClockFreq();
sahilmgandhi 18:6a4db94011d3 280
sahilmgandhi 18:6a4db94011d3 281 u8UartClkSrcSel = (CLK->CLKSEL1 & CLK_CLKSEL1_UARTSEL_Msk) >> CLK_CLKSEL1_UARTSEL_Pos;
sahilmgandhi 18:6a4db94011d3 282
sahilmgandhi 18:6a4db94011d3 283 u32Clk = (u32ClkTbl[u8UartClkSrcSel]) / (((CLK->CLKDIV0 & CLK_CLKDIV0_UARTDIV_Msk) >> CLK_CLKDIV0_UARTDIV_Pos) + 1);
sahilmgandhi 18:6a4db94011d3 284
sahilmgandhi 18:6a4db94011d3 285 uart->BAUD = UART_BAUD_MODE0 | UART_BAUD_MODE0_DIVIDER(u32Clk, u32Buadrate);
sahilmgandhi 18:6a4db94011d3 286
sahilmgandhi 18:6a4db94011d3 287 uart->IRDA &= ~UART_IRDA_TXINV_Msk;
sahilmgandhi 18:6a4db94011d3 288 uart->IRDA |= UART_IRDA_RXINV_Msk;
sahilmgandhi 18:6a4db94011d3 289 uart->IRDA = u32Direction ? uart->IRDA | UART_IRDA_TXEN_Msk : uart->IRDA &~ UART_IRDA_TXEN_Msk;
sahilmgandhi 18:6a4db94011d3 290 uart->FUNCSEL = (0x2 << UART_FUNCSEL_FUNCSEL_Pos);
sahilmgandhi 18:6a4db94011d3 291 }
sahilmgandhi 18:6a4db94011d3 292
sahilmgandhi 18:6a4db94011d3 293
sahilmgandhi 18:6a4db94011d3 294 /**
sahilmgandhi 18:6a4db94011d3 295 * @brief The function is used to set RS485 relative setting.
sahilmgandhi 18:6a4db94011d3 296 *
sahilmgandhi 18:6a4db94011d3 297 * @param[in] uart The base address of UART module.
sahilmgandhi 18:6a4db94011d3 298 * @param[in] u32Mode The operation mode( \ref UART_ALTCTL_RS485NMM_Msk / \ref UART_ALTCTL_RS485AUD_Msk / \ref UART_ALTCTL_RS485AAD_Msk).
sahilmgandhi 18:6a4db94011d3 299 * @param[in] u32Addr The RS485 address.
sahilmgandhi 18:6a4db94011d3 300 *
sahilmgandhi 18:6a4db94011d3 301 * @return None
sahilmgandhi 18:6a4db94011d3 302 */
sahilmgandhi 18:6a4db94011d3 303 void UART_SelectRS485Mode(UART_T* uart, uint32_t u32Mode, uint32_t u32Addr)
sahilmgandhi 18:6a4db94011d3 304 {
sahilmgandhi 18:6a4db94011d3 305 uart->FUNCSEL = UART_FUNCSEL_RS485;
sahilmgandhi 18:6a4db94011d3 306 uart->ALTCTL = 0;
sahilmgandhi 18:6a4db94011d3 307 uart->ALTCTL |= u32Mode | (u32Addr << UART_ALTCTL_ADDRMV_Pos);
sahilmgandhi 18:6a4db94011d3 308 }
sahilmgandhi 18:6a4db94011d3 309
sahilmgandhi 18:6a4db94011d3 310
sahilmgandhi 18:6a4db94011d3 311 /**
sahilmgandhi 18:6a4db94011d3 312 * @brief The function is to write data into TX buffer to transmit data by UART.
sahilmgandhi 18:6a4db94011d3 313 *
sahilmgandhi 18:6a4db94011d3 314 * @param[in] uart The base address of UART module.
sahilmgandhi 18:6a4db94011d3 315 * @param[in] pu8TxBuf The buffer to send the data to UART transmission FIFO.
sahilmgandhi 18:6a4db94011d3 316 * @param[in] u32WriteBytes The byte number of data.
sahilmgandhi 18:6a4db94011d3 317 *
sahilmgandhi 18:6a4db94011d3 318 * @return u32Count: transfer byte count
sahilmgandhi 18:6a4db94011d3 319 */
sahilmgandhi 18:6a4db94011d3 320 uint32_t UART_Write(UART_T* uart,uint8_t *pu8TxBuf, uint32_t u32WriteBytes)
sahilmgandhi 18:6a4db94011d3 321 {
sahilmgandhi 18:6a4db94011d3 322 uint32_t u32Count;
sahilmgandhi 18:6a4db94011d3 323
sahilmgandhi 18:6a4db94011d3 324 for(u32Count=0; u32Count != u32WriteBytes; u32Count++) {
sahilmgandhi 18:6a4db94011d3 325 if(uart->FIFOSTS & UART_FIFOSTS_TXFULL_Msk) { /* Wait Tx empty and Time-out manner */
sahilmgandhi 18:6a4db94011d3 326 return u32Count;
sahilmgandhi 18:6a4db94011d3 327 }
sahilmgandhi 18:6a4db94011d3 328 uart->DAT = pu8TxBuf[u32Count]; /* Send UART Data from buffer */
sahilmgandhi 18:6a4db94011d3 329 }
sahilmgandhi 18:6a4db94011d3 330
sahilmgandhi 18:6a4db94011d3 331 return u32Count;
sahilmgandhi 18:6a4db94011d3 332 }
sahilmgandhi 18:6a4db94011d3 333
sahilmgandhi 18:6a4db94011d3 334
sahilmgandhi 18:6a4db94011d3 335 /*@}*/ /* end of group NUC472_442_UART_EXPORTED_FUNCTIONS */
sahilmgandhi 18:6a4db94011d3 336
sahilmgandhi 18:6a4db94011d3 337 /*@}*/ /* end of group NUC472_442_UART_Driver */
sahilmgandhi 18:6a4db94011d3 338
sahilmgandhi 18:6a4db94011d3 339 /*@}*/ /* end of group NUC472_442_Device_Driver */
sahilmgandhi 18:6a4db94011d3 340
sahilmgandhi 18:6a4db94011d3 341 /*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
sahilmgandhi 18:6a4db94011d3 342
sahilmgandhi 18:6a4db94011d3 343