Nano102_112 Series BSP  V3.03.002
The Board Support Package for Nano102_112 Series
uart.c
Go to the documentation of this file.
1 /**************************************************************************/
13 #include <stdio.h>
14 #include "Nano1X2Series.h"
15 
29 extern uint32_t SysGet_PLLClockFreq(void);
30 
31 
32 
41 void UART_ClearIntFlag(UART_T* uart , uint32_t u32InterruptFlag)
42 {
43 
44  if(u32InterruptFlag & UART_ISR_RLS_IS_Msk) /* clear Receive Line Status Interrupt */
45  {
48  }
49 
50  if(u32InterruptFlag & UART_ISR_MODEM_IS_Msk) /* clear Modem Interrupt */
51  uart->MCSR |= UART_MCSR_DCT_F_Msk;
52 
53  if(u32InterruptFlag & UART_ISR_BUF_ERR_IS_Msk) /* clear Buffer Error Interrupt */
54  {
56  }
57 
58  if(u32InterruptFlag & UART_ISR_WAKE_IS_Msk) /* clear wake up Interrupt */
59  {
60  uart->ISR = UART_ISR_WAKE_IS_Msk;
61  }
62 
63  if(u32InterruptFlag & UART_ISR_ABAUD_IS_Msk) /* clear auto-baud rate Interrupt */
64  {
66  }
67 
68  if(u32InterruptFlag & UART_ISR_LIN_IS_Msk) /* clear LIN break Interrupt */
69  {
71  }
72 
73 }
74 
75 
83 void UART_Close(UART_T* uart)
84 {
85  uart->IER = 0;
86 }
87 
88 
97 {
99 }
100 
101 
119 void UART_DisableInt(UART_T* uart, uint32_t u32InterruptFlag )
120 {
121  uart->IER &= ~ u32InterruptFlag;
122 }
123 
124 
125 
134 {
137 }
138 
139 
157 void UART_EnableInt(UART_T* uart, uint32_t u32InterruptFlag )
158 {
159  uart->IER |= u32InterruptFlag;
160 }
161 
162 
171 void UART_Open(UART_T* uart, uint32_t u32baudrate)
172 {
173  uint8_t u8UartClkSrcSel;
174  uint32_t u32ClkTbl[4] = {__HXT, __LXT, 0, __HIRC12M};
175  uint32_t u32Baud_Div;
176  uint32_t u32SrcFreq;
177  uint32_t u32SrcFreqDiv;
178 
179  u8UartClkSrcSel = (CLK->CLKSEL1 & CLK_CLKSEL1_UART_S_Msk) >> CLK_CLKSEL1_UART_S_Pos;
180 
181  if( (u8UartClkSrcSel == 0x3) && (CLK->PWRCTL & CLK_PWRCTL_HIRC_FSEL_Msk) )
182  u32SrcFreq = __HIRC16M;
183  else
184  u32SrcFreq = u32ClkTbl[u8UartClkSrcSel];
185 
186  u32SrcFreqDiv = (((CLK->CLKDIV0 & CLK_CLKDIV0_UART_N_Msk) >> CLK_CLKDIV0_UART_N_Pos) + 1);
187 
188  if(u32SrcFreq == 0)
189  {
190  u32SrcFreq = SysGet_PLLClockFreq() / u32SrcFreqDiv;
191  }
192  else
193  {
194  u32SrcFreq = u32SrcFreq / u32SrcFreqDiv;
195  }
196 
197  uart->FUN_SEL = UART_FUNC_SEL_UART;
200 
201  if(u32baudrate != 0)
202  {
203  u32Baud_Div = UART_BAUD_MODE0_DIVIDER(u32SrcFreq, u32baudrate);
204 
205  if(u32Baud_Div > 0xFFFF)
206  uart->BAUD = (UART_BAUD_MODE1 | UART_BAUD_MODE1_DIVIDER(u32SrcFreq, u32baudrate));
207  else
208  uart->BAUD = (UART_BAUD_MODE0 | u32Baud_Div);
209  }
210 }
211 
212 
223 uint32_t UART_Read(UART_T* uart, uint8_t *pu8RxBuf, uint32_t u32ReadBytes)
224 {
225  uint32_t u32Count, u32delayno;
226 
227  for(u32Count=0; u32Count < u32ReadBytes; u32Count++)
228  {
229  u32delayno = 0;
230 
231  while(uart->FSR & UART_FSR_RX_EMPTY_F_Msk) /* Check RX empty => failed */
232  {
233  u32delayno++;
234  if( u32delayno >= 0x40000000 )
235  return FALSE;
236  }
237  pu8RxBuf[u32Count] = uart->RBR; /* Get Data from UART RX */
238  }
239 
240  return u32Count;
241 
242 }
243 
244 
257 void UART_SetLine_Config(UART_T* uart, uint32_t u32baudrate, uint32_t u32data_width, uint32_t u32parity, uint32_t u32stop_bits)
258 {
259  uint8_t u8UartClkSrcSel;
260  uint32_t u32ClkTbl[4] = {__HXT, __LXT, 0, __HIRC12M};
261  uint32_t u32Baud_Div = 0;
262  uint32_t u32SrcFreq;
263  uint32_t u32SrcFreqDiv;
264 
265  u8UartClkSrcSel = (CLK->CLKSEL1 & CLK_CLKSEL1_UART_S_Msk) >> CLK_CLKSEL1_UART_S_Pos;
266 
267  if( (u8UartClkSrcSel == 0x3) && (CLK->PWRCTL & CLK_PWRCTL_HIRC_FSEL_Msk) )
268  u32SrcFreq = __HIRC16M;
269  else
270  u32SrcFreq = u32ClkTbl[u8UartClkSrcSel];
271 
272  u32SrcFreqDiv = (((CLK->CLKDIV0 & CLK_CLKDIV0_UART_N_Msk) >> CLK_CLKDIV0_UART_N_Pos) + 1);
273 
274  if(u32SrcFreq == 0)
275  {
276  u32SrcFreq = SysGet_PLLClockFreq() / u32SrcFreqDiv;
277  }
278  else
279  {
280  u32SrcFreq = u32SrcFreq / u32SrcFreqDiv;
281  }
282 
283  if(u32baudrate != 0)
284  {
285  u32Baud_Div = UART_BAUD_MODE0_DIVIDER(u32SrcFreq, u32baudrate);
286 
287  if(u32Baud_Div > 0xFFFF)
288  uart->BAUD = (UART_BAUD_MODE1 | UART_BAUD_MODE1_DIVIDER(u32SrcFreq, u32baudrate));
289  else
290  uart->BAUD = (UART_BAUD_MODE0 | u32Baud_Div);
291  }
292 
293  uart->TLCTL = u32data_width | u32parity | u32stop_bits;
294 }
295 
296 
305 void UART_SetTimeoutCnt(UART_T* uart, uint32_t u32TOC)
306 {
307  uart->TMCTL = (uart->TMCTL & ~UART_TMCTL_TOIC_Msk)| (u32TOC);
308  uart->IER |= UART_IER_RTO_IE_Msk;
309 }
310 
311 
321 void UART_SelectIrDAMode(UART_T* uart, uint32_t u32Buadrate, uint32_t u32Direction)
322 {
323  uint8_t u8UartClkSrcSel;
324  uint32_t u32ClkTbl[4] = {__HXT, __LXT, 0, __HIRC12M};
325  uint32_t u32SrcFreq;
326  uint32_t u32SrcFreqDiv;
327 
328  u8UartClkSrcSel = (CLK->CLKSEL1 & CLK_CLKSEL1_UART_S_Msk) >> CLK_CLKSEL1_UART_S_Pos;
329 
330  u32SrcFreq = u32ClkTbl[u8UartClkSrcSel];
331 
332  u32SrcFreqDiv = (((CLK->CLKDIV0 & CLK_CLKDIV0_UART_N_Msk) >> CLK_CLKDIV0_UART_N_Pos) + 1);
333 
334  if(u32SrcFreq == 0)
335  {
336  u32SrcFreq = SysGet_PLLClockFreq() / u32SrcFreqDiv;
337  }
338  else
339  {
340  u32SrcFreq = u32SrcFreq / u32SrcFreqDiv;
341  }
342 
343  uart->BAUD = UART_BAUD_MODE1 | UART_BAUD_MODE1_DIVIDER(u32SrcFreq, u32Buadrate);
344 
345  uart->IRCR &= ~UART_IRCR_INV_TX_Msk;
346  uart->IRCR |= UART_IRCR_INV_RX_Msk;
347  uart->IRCR = u32Direction ? uart->IRCR | UART_IRCR_TX_SELECT_Msk : uart->IRCR &~ UART_IRCR_TX_SELECT_Msk;
348  uart->FUN_SEL = (0x2 << UART_FUN_SEL_FUN_SEL_Pos);
349 }
350 
351 
361 void UART_SelectRS485Mode(UART_T* uart, uint32_t u32Mode, uint32_t u32Addr)
362 {
364  uart->ALT_CTL = 0;
365  uart->ALT_CTL |= u32Mode | (u32Addr << UART_ALT_CTL_ADDR_PID_MATCH_Pos);
366 }
367 
382 void UART_SelectLINMode(UART_T* uart, uint32_t u32Mode, uint32_t u32BreakLength)
383 {
384  /* Select LIN function mode */
385  uart->FUN_SEL = UART_FUNC_SEL_LIN;
386 
387  /* Select LIN function setting : Tx enable, Rx enable and break field length */
388  uart->FUN_SEL = UART_FUNC_SEL_LIN;
390  uart->ALT_CTL |= u32BreakLength & UART_ALT_CTL_LIN_TX_BCNT_Msk;
391  uart->ALT_CTL |= u32Mode;
392 }
393 
403 uint32_t UART_Write(UART_T* uart,uint8_t *pu8TxBuf, uint32_t u32WriteBytes)
404 {
405  uint32_t u32Count, u32delayno;
406 
407  for(u32Count=0; u32Count != u32WriteBytes; u32Count++)
408  {
409  u32delayno = 0;
410  while((uart->FSR & UART_FSR_TX_EMPTY_F_Msk) == 0) /* Wait Tx empty and Time-out manner */
411  {
412  u32delayno++;
413  if( u32delayno >= 0x40000000 )
414  return FALSE;
415  }
416  uart->THR = pu8TxBuf[u32Count]; /* Send UART Data from buffer */
417  }
418 
419  return u32Count;
420 
421 }
422 
423  /* end of group NANO1X2_UART_EXPORTED_FUNCTIONS */
425  /* end of group NANO1X2_UART_Driver */
427  /* end of group NANO1X2_Device_Driver */
429 
430 /*** (C) COPYRIGHT 2014 Nuvoton Technology Corp. ***/
431 
432 
433 
#define UART_CTL_AUTO_RTS_EN_Msk
#define UART_TMCTL_TOIC_Msk
void UART_SelectLINMode(UART_T *uart, uint32_t u32Mode, uint32_t u32BreakLength)
Select and configure LIN function.
Definition: uart.c:382
__IO uint32_t ALT_CTL
#define CLK_CLKSEL1_UART_S_Msk
#define UART_MCSR_LEV_RTS_Msk
__IO uint32_t FUN_SEL
void UART_EnableFlowCtrl(UART_T *uart)
The function is used to Enable UART auto flow control.
Definition: uart.c:133
#define UART_CTL_AUTO_CTS_EN_Msk
void UART_SelectRS485Mode(UART_T *uart, uint32_t u32Mode, uint32_t u32Addr)
The function is used to set RS485 relative setting.
Definition: uart.c:361
#define CLK
Pointer to CLK register structure.
#define UART_FUN_SEL_FUN_SEL_Pos
__IO uint32_t FSR
void UART_DisableInt(UART_T *uart, uint32_t u32InterruptFlag)
The function is used to disable UART specified interrupt.
Definition: uart.c:119
__IO uint32_t TRSR
__IO uint32_t IER
#define UART_ISR_BUF_ERR_IS_Msk
void UART_SetLine_Config(UART_T *uart, uint32_t u32baudrate, uint32_t u32data_width, uint32_t u32parity, uint32_t u32stop_bits)
This function use to config UART line setting.
Definition: uart.c:257
__I uint32_t RBR
__IO uint32_t ISR
#define UART_MCSR_LEV_CTS_Msk
#define UART_ISR_WAKE_IS_Msk
__IO uint32_t TMCTL
uint32_t SysGet_PLLClockFreq(void)
Calculate current PLL clock frequency.
#define UART_TRSR_ABAUD_F_Msk
#define __LXT
#define CLK_PWRCTL_HIRC_FSEL_Msk
__IO uint32_t CTL
#define UART_FSR_BI_F_Msk
#define UART_FUNC_SEL_LIN
Definition: uart.h:74
#define UART_TLCTL_RTS_TRI_LEV_1BYTE
Definition: uart.h:58
#define UART_BAUD_MODE1_DIVIDER(u32SrcFreq, u32BaudRate)
Calculate UART baudrate mode0 divider.
Definition: uart.h:116
void UART_DisableFlowCtrl(UART_T *uart)
The function is used to disable UART auto flow control.
Definition: uart.c:96
void UART_EnableInt(UART_T *uart, uint32_t u32InterruptFlag)
The function is used to enable UART specified interrupt.
Definition: uart.c:157
uint32_t UART_Write(UART_T *uart, uint8_t *pu8TxBuf, uint32_t u32WriteBytes)
The function is to write data into TX buffer to transmit data by UART.
Definition: uart.c:403
#define __HIRC16M
#define __HIRC12M
#define UART_FUNC_SEL_RS485
Definition: uart.h:76
#define UART_PARITY_NONE
Definition: uart.h:43
Nano102/112 peripheral access layer header file. This file contains all the peripheral register's def...
#define UART_ISR_MODEM_IS_Msk
#define UART_FSR_RX_OVER_F_Msk
#define UART_ISR_ABAUD_IS_Msk
__IO uint32_t MCSR
#define UART_IRCR_INV_RX_Msk
#define UART_STOP_BIT_1
Definition: uart.h:49
void UART_SelectIrDAMode(UART_T *uart, uint32_t u32Buadrate, uint32_t u32Direction)
The function is used to configure IrDA relative settings. It consists of TX or RX mode and baudrate.
Definition: uart.c:321
#define UART_BAUD_MODE0_DIVIDER(u32SrcFreq, u32BaudRate)
Calculate UART baudrate mode2 divider.
Definition: uart.h:126
void UART_Close(UART_T *uart)
The function is used to disable UART.
Definition: uart.c:83
#define UART_TRSR_LIN_RX_F_Msk
__IO uint32_t TLCTL
#define FALSE
Boolean false, define to use in API parameters or return value.
#define UART_FSR_FE_F_Msk
#define UART_IER_RTO_IE_Msk
#define UART_TRSR_BIT_ERR_F_Msk
#define UART_ALT_CTL_LIN_TX_BCNT_Msk
#define UART_FUNC_SEL_UART
Definition: uart.h:73
void UART_Open(UART_T *uart, uint32_t u32baudrate)
This function use to enable UART function and set baud-rate.
Definition: uart.c:171
#define UART_MCSR_DCT_F_Msk
#define UART_ISR_RLS_IS_Msk
#define UART_FSR_PE_F_Msk
#define UART_FSR_RX_EMPTY_F_Msk
#define CLK_CLKDIV0_UART_N_Msk
#define UART_BAUD_MODE1
Calculate UART baudrate mode0 divider.
Definition: uart.h:104
#define CLK_CLKDIV0_UART_N_Pos
#define UART_TRSR_RS485_ADDET_F_Msk
void UART_SetTimeoutCnt(UART_T *uart, uint32_t u32TOC)
This function use to set Rx timeout count.
Definition: uart.c:305
#define UART_IRCR_TX_SELECT_Msk
#define UART_BAUD_MODE0
Calculate UART baudrate mode0 divider.
Definition: uart.h:94
#define UART_ALT_CTL_ADDR_PID_MATCH_Pos
#define UART_FSR_TX_OVER_F_Msk
__IO uint32_t IRCR
#define __HXT
#define UART_ISR_LIN_IS_Msk
#define UART_FSR_TX_EMPTY_F_Msk
#define UART_TLCTL_RFITL_1BYTE
Definition: uart.h:53
__O uint32_t THR
#define UART_WORD_LEN_8
Definition: uart.h:41
void UART_ClearIntFlag(UART_T *uart, uint32_t u32InterruptFlag)
The function is used to clear UART specified interrupt flag.
Definition: uart.c:41
#define CLK_CLKSEL1_UART_S_Pos
#define UART_TRSR_ABAUD_TOUT_F_Msk
#define UART_IRCR_INV_TX_Msk
uint32_t UART_Read(UART_T *uart, uint8_t *pu8RxBuf, uint32_t u32ReadBytes)
The function is used to read Rx data from RX FIFO and the data will be stored in pu8RxBuf.
Definition: uart.c:223
#define UART_TRSR_LIN_TX_F_Msk
#define UART_ALT_CTL_LIN_TX_EN_Msk
#define UART_ALT_CTL_LIN_RX_EN_Msk
__IO uint32_t BAUD