📄 uart2.c
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#include <string.h>
#include <stdlib.h>
#include "2410addr.h"
#include "2410lib.h"
#include "def.h"
#include "uart0.h"
#include "uart2.h"
void __irq Uart2_TxInt(void);
void __irq Uart2_RxIntOrErr(void);
void __irq Uart2_TxDmaDone(void);
void __irq Uart2_RxDmaDone(void);
void __irq Uart2_RxDmaOrErr(void);
void __irq Uart2_TxFifo(void);
void __irq Uart2_RxFifoOrErr(void);
void __sub_Uart2_RxInt(void);
void __sub_Uart2_RxFifo(void);
void __sub_Uart2_RxErrInt(void);
volatile static char *uart2TxStr;
volatile static char *uart2RxStr;
//---------------------------------------UART2 test function-------------------------------------
void __irq Uart2_TxInt(void)
{
rINTSUBMSK|=(BIT_SUB_RXD2|BIT_SUB_TXD2|BIT_SUB_ERR2); // Just for the safety
if(*uart2TxStr != '\0')
{
WrUTXH2(*uart2TxStr++);
ClearPending(BIT_UART2); // Clear master pending
rSUBSRCPND=(BIT_SUB_TXD2);
rINTSUBMSK&=~(BIT_SUB_TXD2); // Unmask sub int
}
else
{
isTxInt=0;
ClearPending(BIT_UART2); // Clear master pending
rSUBSRCPND=(BIT_SUB_TXD2);
rINTMSK|=(BIT_UART2); // Unmask sub int
}
}
void __irq Uart2_RxIntOrErr(void)
{
rINTSUBMSK|=(BIT_SUB_RXD2|BIT_SUB_TXD2|BIT_SUB_ERR2);
if(rSUBSRCPND&BIT_SUB_RXD2) __sub_Uart2_RxInt();
else __sub_Uart2_RxErrInt();
ClearPending(BIT_UART2);
rSUBSRCPND=(BIT_SUB_RXD2|BIT_SUB_ERR2); // Clear Sub int pending
rINTSUBMSK&=~(BIT_SUB_RXD2|BIT_SUB_ERR2);
}
void __irq Uart2_TxDmaDone(void)
{
rDMASKTRIG3=0x0; // Stop Dma3
isDone=0;
rINTMSK |= BIT_DMA3;
ClearPending(BIT_DMA3);
}
void __irq Uart2_RxDmaDone(void)
{
rDMASKTRIG3=0x0; //DMA3 Channel Off
isDone=0;
*(uart2RxStr+5)='\0';
rINTMSK|=(BIT_DMA3);
ClearPending(BIT_DMA3);
}
void __irq Uart2_RxDmaOrErr(void)
{
rINTSUBMSK|=(BIT_SUB_RXD2|BIT_SUB_TXD2|BIT_SUB_ERR2);
if(rSUBSRCPND&BIT_SUB_RXD2) Uart_Printf("Error : UART2 Rx Interrupt is occured!!!\n");
else __sub_Uart2_RxErrInt();
ClearPending(BIT_UART2);
rSUBSRCPND=(BIT_SUB_ERR2); // Clear Sub int pending
rINTSUBMSK&=~(BIT_SUB_ERR2);
}
void __irq Uart2_TxFifo(void)
{
rINTSUBMSK|=(BIT_SUB_RXD2|BIT_SUB_TXD2|BIT_SUB_ERR2); // Just for the safety
while (!(rUFSTAT2 & 0x200) && (*uart2TxStr != '\0')) //until tx fifo full or end of string
WrUTXH2(*uart2TxStr++);
if(*uart2TxStr == '\0')
{
rINTMSK|=BIT_UART2;
rSUBSRCPND=BIT_SUB_TXD2; // Clear Sub int pending
ClearPending(BIT_UART2); // Clear master pending
}
else
{
ClearPending(BIT_UART2); // Clear master pending
rSUBSRCPND=BIT_SUB_TXD2; // Clear Sub int pending
rINTSUBMSK&=~(BIT_SUB_TXD2); // Unmask sub int
}
}
void __irq Uart2_RxFifoOrErr(void)
{
rINTSUBMSK|=(BIT_SUB_RXD2|BIT_SUB_TXD2|BIT_SUB_ERR2);
if(rSUBSRCPND&BIT_SUB_RXD2) __sub_Uart2_RxFifo();
else __sub_Uart2_RxErrInt();
ClearPending(BIT_UART2);
rSUBSRCPND=(BIT_SUB_RXD2|BIT_SUB_ERR2);
rINTSUBMSK&=~(BIT_SUB_RXD2|BIT_SUB_ERR2);
}
void __sub_Uart2_RxInt(void)
{
if(RdURXH2()!='\r')
{
Uart_Printf("%c",RdURXH2());
*uart2RxStr++ =(char) RdURXH2();
}
else
{
isRxInt=0;
*uart2RxStr='\0';
Uart_Printf("\n");
}
}
void __sub_Uart2_RxFifo(void)
{
while((rUFSTAT2&0x100)||(rUFSTAT2&0xf)) //During the Rx FIFO is not empty
{
rx_point++;
if(rx_point<5)
rx_filesize |= (RdURXH2()<<(8*(rx_point-1))); // First 4-bytes mean file size
else if(rx_point>(rx_filesize-2))
{
rx_dncs |= (RdURXH2()<<(8*(1-(rx_filesize-rx_point)))); //Last 2-bytes mean checksum.
if(rx_point==rx_filesize) rx_isdone=0;
}
else
rx_checksum+=RdURXH2();
}
}
void __sub_Uart2_RxErrInt(void)
{
switch(rUERSTAT2)//to clear and check the status of register bits
{
case '1':
Uart_Printf("Overrun error\n");
break;
case '2':
Uart_Printf("Parity error\n");
break;
case '4':
Uart_Printf("Frame error\n");
break;
case '8':
Uart_Printf("Breake detect\n");
break;
default :
break;
}
}
void Test_Uart2_Int(void)
{
Uart_Port_Set();
// Additional configuration for UART2 port
rGPHCON&=0x3fafff; // TXD2,RXD2
Uart_Select(0);
/*********** UART2 Tx test with interrupt ***********/
isTxInt=1;
uart2TxStr="ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890->UART2 Tx interrupt test is good!!!!\r\n";
Uart_Printf("[Uart channel 2 Tx Interrupt Test]\n");
//-------------------------------------------------------------------------------------------->
Uart_Printf("\nConnect PC[COM1 or COM2] and UART2 of SMDK2410 with a serial cable!!! \n");
Uart_Printf("Then, press any key........\n");
Uart_Select(2); // Change the uart port
Uart_Getch();
//----------------------------------------->
pISR_UART2=(unsigned)Uart2_TxInt;
rULCON2=(0<<6)|(0<<3)|(0<<2)|(3); // Normal,No parity,One stop bit, 8bit
rUCON2 &= 0x400; // For the PCLK <-> UCLK fuction
rUCON2 |= (TX_INTTYPE<<9)|(RX_INTTYPE<<8)|(0<<7)|(0<<6)|(0<<5)|(0<<4)|(1<<2)|(1);
//Clock,Tx:Def,Rx:Def,Rx timeout:x,Rx error int:x,Loop-back:x,Send break:x,Tx:int,Rx:int
Uart_TxEmpty(0); //wait until tx buffer is empty.
rINTMSK=~(BIT_UART2);
rINTSUBMSK=~(BIT_SUB_TXD2);
while(isTxInt);
/*********** UART2 Rx test with interrupt ***********/
isRxInt=1;
uart2RxStr=(volatile char *)UARTBUFFER;
Uart_Printf("\n[Uart channel 2 Rx Interrupt Test]:\n");
Uart_Printf("After typing ENTER key, you will see the characters which was typed by you.");
Uart_Printf("\nTo quit, press ENTER key.!!!\n");
pISR_UART2 =(unsigned)Uart2_RxIntOrErr;
rULCON2=(0<<6)|(0<<3)|(0<<2)|(3); // Normal,No parity,One stop bit, 8bit
rUCON2 &= 0x400; // For the PCLK <-> UCLK fuction
rUCON2 |= (TX_INTTYPE<<9)|(RX_INTTYPE<<8)|(0<<7)|(1<<6)|(0<<5)|(0<<4)|(1<<2)|(1);
//Clock,Tx:pulse,Rx:pulse,Rx timeout:x,Rx error int:o,Loop-back:x,Send break:x,Tx:int,Rx:int
// Clear Int Pending and Unmask
ClearPending(BIT_UART2);
rINTMSK=~(BIT_UART2);
rSUBSRCPND=(BIT_SUB_RXD2|BIT_SUB_ERR2);
rINTSUBMSK=~(BIT_SUB_RXD2|BIT_SUB_ERR2);
while(isRxInt);
rINTSUBMSK|=(BIT_SUB_RXD2|BIT_SUB_TXD2|BIT_SUB_ERR2);
rINTMSK|=(BIT_UART2);
Uart_Printf("%s\n",(char *)UARTBUFFER);
//----------------------------------------------------------------------------------------->
Uart_Printf("\nConnect PC[COM1 or COM2] and UART0 of SMDK2410 with a serial cable!!! \n");
Uart_Printf("Then, press any key........\n");
Uart_Select(0);
Uart_Getch();
//--------------------------->
Uart_Port_Return();
}
void Test_Uart2_Dma(void)
{
Uart_Port_Set();
// Additional configuration for UART2 port
rGPHCON&=0x3fafff; // TXD2,RXD2
Uart_Select(0);
/*********** UART2 Tx test with DMA3 ***********/
isDone=1;
uart2TxStr="ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890->UART2 Tx Test by DMA3 is good!!!!\r\n";
Uart_Printf("\n[Uart channel 2 DMA3 Tx Test]\n");
Uart_TxEmpty(0);
//-------------------------------------------------------------------------------------------->
Uart_Printf("\nConnect PC[COM1 or COM2] and UART2 of SMDK2410 with a serial cable!!! \n");
Uart_Printf("Then, press any key........\n");
Uart_Select(2); // Change the uart port
Uart_Getch();
Uart_Printf("Port is changed.......\n");
//----------------------------------------->
pISR_DMA3 =(unsigned)Uart2_TxDmaDone;
rULCON2=(0<<6)|(0<<3)|(0<<2)|(3); // Normal,No parity,One stop bit, 8bit
rUCON2 &= 0x400; // For the PCLK <-> UCLK fuction
rUCON2 |= (TX_INTTYPE<<9)|(RX_INTTYPE<<8)|(0<<7)|(0<<6)|(0<<5)|(0<<4)|(2<<2)|(1);
//Clock,Tx:Def,Rx:Def,Rx timeout:x,Rx error int:x,Loop-back:x,Send break:x,Tx:dma3,Rx:int
/***DMA3 init***/
rDISRC3=(U32)uart2TxStr; // Start address
rDISRCC3=(0<<1)|(0); // AHB,Increment
rDIDST3=(U32)UTXH2; // Memory buffer Address
rDIDSTC3=(1<<1)|(1); // APB,Fixed
rDCON3=(1<<31)|(0<<30)|(1<<29)|(0<<28)|(0<<27)|(0<<24)|(1<<23)|(1<<22)|(0<<20)|strlen((char*)uart2TxStr);
//handshake, sync PCLK, TC int, single tx, single service, Uart2, H/W request,auto-reload off, Byte size Tx, Tx count value
rINTMSK=~(BIT_DMA3);
rDMASKTRIG3=(0<<2)|(1<<1)|(0); //no-stop, DMA3 channel on, no-SW trigger
while(isDone);
/*********** UART2 Rx test with DMA3 ***********/
isDone=1;
uart2RxStr=(char *)UARTBUFFER;
Uart_Printf("\n[Uart channel 2 DMA3 Rx Test]\n");
Uart_Printf("Type any five keys!!!\n");
Uart_Printf("Then you will see what you typed.\n");
pISR_DMA3=(unsigned)Uart2_RxDmaDone;
pISR_UART2=(unsigned)Uart2_RxDmaOrErr;
rULCON2=(0<<6)|(0<<3)|(0<<2)|(3); // Normal,No parity,One stop bit, 8bit
rUCON2 &= 0x400; // For the PCLK <-> UCLK fuction
rUCON2 |= (TX_INTTYPE<<9)|(RX_INTTYPE<<8)|(0<<7)|(1<<6)|(0<<5)|(0<<4)|(1<<2)|(2);
//Clock,Tx:Def,Rx:Def,Rx timeout:x,Rx error int:o,Loop-back:x,Send break:x,Tx:int,Rx:dma3
/***DMA3 init***/
rDISRC3=(U32)URXH2; // Start address
rDISRCC3=(1<<1)|(1); // APB,Fixed
rDIDST3=(U32)uart2RxStr; // Memory buffer Address
rDIDSTC3= (0<<1)|(0); // AHB,Increment
rDCON3=(1<<31)|(0<<30)|(1<<29)|(0<<28)|(0<<27)|(0<<24)|(1<<23)|(1<<22)|(0<<20)|(5);
//handshake, sync PCLK, TC int, single tx, single service, Uart2, H/W request,auto-reload off, Byte size Tx, Tx count value
// Clear Int Pending and Unmask
ClearPending(BIT_UART2);
rINTMSK=~(BIT_DMA3|BIT_UART2);
rSUBSRCPND=(BIT_SUB_RXD2|BIT_SUB_TXD2|BIT_SUB_ERR2);
rINTSUBMSK=~(BIT_SUB_ERR2);
rDMASKTRIG3=(0<<2)|(1<<1)|(0); //no-stop, DMA3 channel on, no-SW trigger
while(isDone);
Uart_Printf("%s\n",uart2RxStr);
//----------------------------------------------------------------------------------------->
Uart_Printf("\nConnect PC[COM1 or COM2] and UART0 of SMDK2410 with a serial cable!!! \n");
Uart_Printf("Then, press any key........\n");
Uart_Select(0);
Uart_Getch();
//--------------------------->
Uart_Port_Return();
}
void Test_Uart2_Fifo(void)
{
Uart_Port_Set();
// Additional configuration for UART2 port
rGPHCON&=0x3fafff; // TXD2,RXD2
Uart_Select(0);
/******* UART2 Tx FIFO test with interrupt ********/
Uart_Printf("[Uart channel 2 Tx FIFO Interrupt Test]\n");
Uart_TxEmpty(0); //wait until tx buffer is empty.
//-------------------------------------------------------------------------------------------->
Uart_Printf("\nConnect PC[COM1 or COM2] and UART2 of SMDK2410 with a serial cable!!! \n");
Uart_Printf("Then, press any key........\n");
Uart_Select(2); // Change the uart port
Uart_Getch();
//----------------------------------------->
/* <Tx Trigger Level:8Byte> */
uart2TxStr="ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890->UART2 Tx FIFO interrupt(8byte) test is good!!!!\r\n";
pISR_UART2=(U32)Uart2_TxFifo;
rULCON2=(0<<6)|(0<<3)|(0<<2)|(3); // Normal,No parity,One stop bit, 8bit
rUCON2 &= 0x400; // For the PCLK <-> UCLK fuction
rUCON2 |= (TX_INTTYPE<<9)|(RX_INTTYPE<<8)|(0<<7)|(0<<6)|(0<<5)|(0<<4)|(1<<2)|(1);
//Clock,Tx:Def,Rx:Def,Rx timeout:x,Rx error int:x,Loop-back:x,Send break:x,Tx:int,Rx:int
rUFCON2=(2<<6)|(1<<4)|(1<<2)|(1<<1)|(1);
//Tx and Rx FIFO Trigger Level:8byte,Tx and Rx FIFO Reset,FIFO on
rINTMSK=~(BIT_UART2);
rINTSUBMSK=~(BIT_SUB_TXD2);
Delay(500);
rUFCON2=(2<<6)|(1<<4)|(1<<2)|(1<<1)|(0);
//Tx and Rx FIFO Trigger Level:8byte,Tx and Rx FIFO Reset,FIFO off
/* <Tx Trigger Level:12Byte> */
uart2TxStr="ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890->UART2 Tx FIFO interrupt(12byte) test is good!!!!\r\n";
pISR_UART2=(unsigned)Uart2_TxFifo;
rULCON2=(0<<6)|(0<<3)|(0<<2)|(3); // Normal,No parity,One stop bit, 8bit
rUCON2 &= 0x400; // For the PCLK <-> UCLK fuction
rUCON2 |= (TX_INTTYPE<<9)|(RX_INTTYPE<<8)|(0<<7)|(0<<6)|(0<<5)|(0<<4)|(1<<2)|(1);
//Clock,Tx:Def,Rx:Def,Rx timeout:x,Rx error int:x,Loop-back:x,Send break:x,Tx:int,Rx:int
rUFCON2=(3<<6)|(2<<4)|(1<<2)|(1<<1)|(1);
//Tx and Rx FIFO Trigger Level:12byte,Tx and Rx FIFO Reset,FIFO on
rINTMSK=~(BIT_UART2);
rINTSUBMSK=~(BIT_SUB_TXD2);
Delay(500);
rUFCON2=(3<<6)|(2<<4)|(1<<2)|(1<<1)|(0);
//Tx and Rx FIFO Trigger Level:12byte,Tx and Rx FIFO Reset,FIFO off
/******* UART2 Rx FIFO test with interrupt ********/
rx_dncs=0;
rx_point=0;
rx_isdone=1;
rx_filesize=0;
rx_checksum=0;
Uart_Printf("[Uart channel 2 Rx FIFO Interrupt Test]\n");
pISR_UART2=(unsigned)Uart2_RxFifoOrErr;
rULCON2=(0<<6)|(0<<3)|(0<<2)|(3); // Normal,No parity,One stop bit, 8bit
rUCON2 &= 0x400; // For the PCLK <-> UCLK fuction
rUCON2 |= (TX_INTTYPE<<9)|(RX_INTTYPE<<8)|(1<<7)|(1<<6)|(0<<5)|(0<<4)|(1<<2)|(1);
//Clock,Tx:Def,Rx:Def,Rx timeout:o,Rx error int:o,Loop-back:x,Send break:x,Tx:int,Rx:int
rUFCON2=(1<<6)|(0<<4)|(1<<2)|(1<<1)|(1);
//Tx and Rx FIFO Trigger Level:4byte,Tx and Rx FIFO Reset,FIFO on
// Clear Int Pending and Unmask
ClearPending(BIT_UART2);
rINTMSK=~(BIT_UART2);
rSUBSRCPND=(BIT_SUB_RXD2|BIT_SUB_TXD2|BIT_SUB_ERR2);
rINTSUBMSK=~(BIT_SUB_RXD2|BIT_SUB_ERR2);
Uart_Printf("Download the target file[*.bin] by Uart2\n");
while(rx_isdone);
rINTMSK |= (BIT_UART2);
rINTSUBMSK|=(BIT_SUB_RXD2|BIT_SUB_TXD2|BIT_SUB_ERR2);
rUFCON2=(3<<6)|(2<<4)|(1<<2)|(1<<1)|(0);
//Tx and Rx FIFO Trigger Level:12byte,Tx and Rx FIFO Reset,FIFO off
if(rx_dncs==(rx_checksum&0xffff))
Uart_Printf("\nDownload test OK!!!\n");
else
Uart_Printf("\nError!!!\n");
//----------------------------------------------------------------------------------------->
Uart_Printf("\nConnect PC[COM1 or COM2] and UART0 of SMDK2410 with a serial cable!!! \n");
Uart_Printf("Then, press any key........\n");
Uart_Select(0);
Uart_Getch();
//--------------------------->
Uart_Port_Return();
}
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