串口通信帧数据频率 100hz
开机时正常 过一段时间后收不到数据 有时候几秒钟 有时候几分钟 如果把数据不连续发送就能正常工作 请问如何解决
volatile unsigned long recv_uart_b_interrupt_data = 0;
volatile unsigned long load_uart_b_interrupt_data = 0;
volatile unsigned char recv_uart_b_tmp_data[ RECV_SIC_SINS_DATA_LENGTH + 2 ];
void init_scib_gpio()
{
// SCI-RX
GPIO_SetupPinMux(19, GPIO_MUX_CPU1,2);
GPIO_SetupPinOptions(19, GPIO_INPUT, GPIO_PUSHPULL);
// SCI-TX
GPIO_SetupPinMux(18, GPIO_MUX_CPU1, 2);
GPIO_SetupPinOptions(18, GPIO_OUTPUT, GPIO_ASYNC);
}
void scib_fifo_init()
{
ScibRegs.SCICCR.all = 0x0007; // 1 stop bit, No loopback
// No parity,8 char bits,
// async mode, idle-line protocol
ScibRegs.SCICTL1.all = 0x0003; // enable TX, RX, internal SCICLK,
// Disable RX ERR, SLEEP, TXWAKE
ScibRegs.SCIHBAUD = 0x00;
ScibRegs.SCILBAUD = 0x06;
ScibRegs.SCIFFTX.bit.SCIFFENA = 1;//使能FIFO
ScibRegs.SCIFFTX.bit.SCIRST = 1;//继续执行功能
ScibRegs.SCIFFTX.bit.TXFFIENA =1;//使能发送FIFO中断
ScibRegs.SCIFFTX.bit.TXFFIL = 0x01;//12级FIFO使能
// ScibRegs.SCIFFTX.bit.TXFFINTCLR = 1; // 开始发送数据
ScibRegs.SCIFFTX.bit.TXFIFOXRESET = 0;
ScibRegs.SCIFFRX.bit.RXFFOVRCLR = 1;
ScibRegs.SCIFFRX.bit.RXFFINTCLR = 1;
ScibRegs.SCIFFRX.bit.RXFIFORESET = 0;
ScibRegs.SCIFFRX.bit.RXFFIENA = 1;
ScibRegs.SCIFFRX.bit.RXFFIL = 0x01;
ScibRegs.SCIFFCT.all = 0x00;
ScibRegs.SCICTL1.bit.SWRESET = 1;//Relinquish SCI from Reset
ScibRegs.SCIFFTX.bit.TXFIFOXRESET = 1;
ScibRegs.SCIFFRX.bit.RXFIFORESET = 1;
}
接收中断函数
interrupt void scibRxIsr( void )
{
unsigned char recv_data = ( ScibRegs.SCIRXBUF.all ) & 0x00FF;
// 保存数据
//GpioDataRegs.GPATOGGLE.bit.GPIO26 = 1;
recv_uart_b_tmp_data[ recv_uart_b_interrupt_data ] = recv_data;
++recv_uart_b_interrupt_data;
recv_uart_b_interrupt_data %= RECV_SIC_SINS_DATA_LENGTH;
ScibRegs.SCIFFRX.bit.RXFFOVRCLR = 1;
ScibRegs.SCIFFRX.bit.RXFFINTCLR = 1;
//PieCtrlRegs.PIEACK.bit.ACK9 = 1; //当中断处理完成后，需要用程序将该组ACK置1，否则会出现该组某一中断一直出现的情况
PieCtrlRegs.PIEACK.all |= PIEACK_GROUP9;
}
串口异常后的寄存器值
ScibRegs struct SCI_REGS {...} 0x00007210@Data
SCICCR union SCICCR_REG {...} 0x00007210@Data
all unsigned int 7 0x00007210@Data
bit struct SCICCR_BITS {...} 0x00007210@Data
SCICHAR unsigned int : 3 7 0x00007210@Data bit 0-2
ADDRIDLE_MODE unsigned int : 1 0 0x00007210@Data bit 3
LOOPBKENA unsigned int : 1 0 0x00007210@Data bit 4
PARITYENA unsigned int : 1 0 0x00007210@Data bit 5
PARITY unsigned int : 1 0 0x00007210@Data bit 6
STOPBITS unsigned int : 1 0 0x00007210@Data bit 7
rsvd1 unsigned int : 8 0 0x00007210@Data bit 8-15
SCICTL1 union SCICTL1_REG {...} 0x00007211@Data
all unsigned int 35 0x00007211@Data
bit struct SCICTL1_BITS {...} 0x00007211@Data
RXENA unsigned int : 1 1 0x00007211@Data bit 0
TXENA unsigned int : 1 1 0x00007211@Data bit 1
SLEEP unsigned int : 1 0 0x00007211@Data bit 2
TXWAKE unsigned int : 1 0 0x00007211@Data bit 3
rsvd1 unsigned int : 1 0 0x00007211@Data bit 4
SWRESET unsigned int : 1 1 0x00007211@Data bit 5
RXERRINTENA unsigned int : 1 0 0x00007211@Data bit 6
rsvd2 unsigned int : 9 0 0x00007211@Data bit 7-15
SCIHBAUD unsigned int 0 0x00007212@Data
SCILBAUD unsigned int 6 0x00007213@Data
SCICTL2 union SCICTL2_REG {...} 0x00007214@Data
all unsigned int 192 0x00007214@Data
bit struct SCICTL2_BITS {...} 0x00007214@Data
TXINTENA unsigned int : 1 0 0x00007214@Data bit 0
RXBKINTENA unsigned int : 1 0 0x00007214@Data bit 1
rsvd1 unsigned int : 4 0 0x00007214@Data bit 2-5
TXEMPTY unsigned int : 1 1 0x00007214@Data bit 6
TXRDY unsigned int : 1 1 0x00007214@Data bit 7
rsvd2 unsigned int : 8 0 0x00007214@Data bit 8-15
SCIRXST union SCIRXST_REG {...} 0x00007215@Data
all unsigned int 178 0x00007215@Data
bit struct SCIRXST_BITS {...} 0x00007215@Data
rsvd1 unsigned int : 1 0 0x00007215@Data bit 0
RXWAKE unsigned int : 1 1 0x00007215@Data bit 1
PE unsigned int : 1 0 0x00007215@Data bit 2
OE unsigned int : 1 0 0x00007215@Data bit 3
FE unsigned int : 1 1 0x00007215@Data bit 4
BRKDT unsigned int : 1 1 0x00007215@Data bit 5
RXRDY unsigned int : 1 0 0x00007215@Data bit 6
RXERROR unsigned int : 1 1 0x00007215@Data bit 7
rsvd2 unsigned int : 8 0 0x00007215@Data bit 8-15
SCIRXEMU unsigned int 35 0x00007216@Data
SCIRXBUF union SCIRXBUF_REG {...} 0x00007217@Data
all unsigned int 63 0x00007217@Data
bit struct SCIRXBUF_BITS {...} 0x00007217@Data
RXDT unsigned int : 8 63 0x00007217@Data bit 0-7
rsvd1 unsigned int : 6 0 0x00007217@Data bit 8-13
SCIFFPE unsigned int : 1 0 0x00007217@Data bit 14
SCIFFFE unsigned int : 1 0 0x00007217@Data bit 15
rsvd1 unsigned int 0 0x00007218@Data
SCITXBUF unsigned int 136 0x00007219@Data
SCIFFTX union SCIFFTX_REG {...} 0x0000721A@Data
all unsigned int 57505 0x0000721A@Data
bit struct SCIFFTX_BITS {...} 0x0000721A@Data
TXFFIL unsigned int : 5 1 0x0000721A@Data bit 0-4
TXFFIENA unsigned int : 1 1 0x0000721A@Data bit 5
TXFFINTCLR unsigned int : 1 0 0x0000721A@Data bit 6
TXFFINT unsigned int : 1 1 0x0000721A@Data bit 7
TXFFST unsigned int : 5 0 0x0000721A@Data bit 8-12
TXFIFOXRESET unsigned int : 1 1 0x0000721A@Data bit 13
SCIFFENA unsigned int : 1 1 0x0000721A@Data bit 14
SCIRST unsigned int : 1 1 0x0000721A@Data bit 15
SCIFFRX union SCIFFRX_REG {...} 0x0000721B@Data
all unsigned int 8225 0x0000721B@Data
bit struct SCIFFRX_BITS {...} 0x0000721B@Data
RXFFIL unsigned int : 5 1 0x0000721B@Data bit 0-4
RXFFIENA unsigned int : 1 1 0x0000721B@Data bit 5
RXFFINTCLR unsigned int : 1 0 0x0000721B@Data bit 6
RXFFINT unsigned int : 1 0 0x0000721B@Data bit 7
RXFFST unsigned int : 5 0 0x0000721B@Data bit 8-12
RXFIFORESET unsigned int : 1 1 0x0000721B@Data bit 13
RXFFOVRCLR unsigned int : 1 0 0x0000721B@Data bit 14
RXFFOVF unsigned int : 1 0 0x0000721B@Data bit 15
SCIFFCT union SCIFFCT_REG {...} 0x0000721C@Data
all unsigned int 0 0x0000721C@Data
bit struct SCIFFCT_BITS {...} 0x0000721C@Data
FFTXDLY unsigned int : 8 0 0x0000721C@Data bit 0-7
rsvd1 unsigned int : 5 0 0x0000721C@Data bit 8-12
CDC unsigned int : 1 0 0x0000721C@Data bit 13
ABDCLR unsigned int : 1 0 0x0000721C@Data bit 14
ABD unsigned int : 1 0 0x0000721C@Data bit 15
rsvd2 unsigned int 0 0x0000721D@Data
rsvd3 unsigned int 0 0x0000721E@Data
SCIPRI union SCIPRI_REG {...} 0x0000721F@Data
all unsigned int 0 0x0000721F@Data
bit struct SCIPRI_BITS {...} 0x0000721F@Data
rsvd1 unsigned int : 3 0 0x0000721F@Data bit 0-2
FREE unsigned int : 1 0 0x0000721F@Data bit 3
SOFT unsigned int : 1 0 0x0000721F@Data bit 4
rsvd2 unsigned int : 3 0 0x0000721F@Data bit 5-7
rsvd3 unsigned int : 8 0 0x0000721F@Data bit 8-15
连续发生数据
数据间隔发送
