static int init_base(uart_t uart, uint32_t baudrate)
{
/*The base address of the chosen UART */
unsigned long ulBase = g_ulUARTBase[uart];
ROM_SysCtlPeripheralEnable(g_ulUARTPeriph[uart]);
switch(uart){
#if UART_0_EN
case UART_0:
ROM_SysCtlPeripheralEnable(UART_0_PORT);
ROM_GPIOPinConfigure(UART_0_RX_PIN);
ROM_GPIOPinConfigure(UART_0_TX_PIN);
ROM_GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
break;
#endif
#if UART_1_EN
case UART_1:
ROM_SysCtlPeripheralEnable(UART_1_PORT);
ROM_GPIOPinConfigure(UART_1_RX_PIN);
ROM_GPIOPinConfigure(UART_1_TX_PIN);
ROM_GPIOPinTypeUART(GPIO_PORTB_BASE, GPIO_PIN_0 | GPIO_PIN_1);
break;
#endif
}
ROM_UARTDisable(ulBase);
ROM_UARTConfigSetExpClk(ulBase,UART_CLK, baudrate,
(UART_CONFIG_PAR_NONE | UART_CONFIG_STOP_ONE | UART_CONFIG_WLEN_8));
ROM_UARTEnable(ulBase);
return 0;
}
/*
* closeOptode turns off the Optode (removes power
* and disables UART3).
*/
void closeOptode(void)
{
//disable UART3 and its interrupt
ROM_UARTIntDisable(UART3_BASE, UART_INT_RX);
ROM_UARTDisable(UART3_BASE);
//turn off power
OPTODE_OFF;
}
unsigned char Wiz610_get_buf(unsigned char *buf)
{
unsigned char i;
if(!cmd_get) return false;
ROM_UARTDisable(WIZ610_UART_BASE);
i=0;
while(i<g_ulRxBufACount)
{
*buf++=g_ucRxBuf[i];
i++;
}
*buf=0;
cmd_get=false;
i=g_ulRxBufACount;
g_ulRxBufACount=0;
frab=WIZ_IDLE;
return i;
}
static int init_base(uart_t uart, uint32_t baudrate)
{
switch(uart){
#if UART_0_EN
case UART_0:
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
ROM_GPIOPinConfigure(GPIO_PA0_U0RX);
ROM_GPIOPinConfigure(GPIO_PA1_U0TX);
ROM_GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
ROM_UARTDisable(UART0_BASE);
ROM_UARTConfigSetExpClk(UART0_BASE,ROM_SysCtlClockGet(), baudrate,
(UART_CONFIG_PAR_NONE | UART_CONFIG_STOP_ONE |
UART_CONFIG_WLEN_8));
ROM_UARTEnable(UART0_BASE);
break;
#endif
}
return 0;
}
void uart_poweroff(uart_t uart)
{
/*The base address of the chosen UART */
unsigned long ulBase = g_ulUARTBase[uart];
ROM_UARTDisable(ulBase);
}
void wiz610_uart_isr(void)
{
unsigned long ulStatus;
unsigned long ulMode;
unsigned char data;
ulStatus = ROM_UARTIntStatus(WIZ610_UART_BASE, true);
ROM_UARTIntClear(WIZ610_UART_BASE, ulStatus);
if(cmd_modbus_switch)
{
// ������ � ������� � ��������� ������
if(ulStatus==UART_INT_RX)
{
g_Wiz610_fRX=true;
cmd_get=false;
while(!(HWREG(WIZ610_UART_BASE + UART_O_FR) & UART_FR_RXFE))
{
data=HWREG(WIZ610_UART_BASE+UART_O_DR);
if(frab==WIZ_IDLE)
{
if(data=='<') frab=WIZ_START;
if(data=='>') frab=WIZ_STOP;
cmd_get=false;
}
else
{
if(frab==WIZ_START)
{
if(data=='>') frab=WIZ_STOP;
else
{
g_ucRxBuf[g_ulRxBufACount]=data;
g_ulRxBufACount=(g_ulRxBufACount+1)&0x7f;
}
}
}
if(frab==WIZ_STOP)
{
ROM_UARTDisable(WIZ610_UART_BASE);
cmd_get=true;
}
}
}
}
else
{
// ������ � ������ ������
if(ulStatus==UART_INT_TX)
{
g_ulRxBufACount=0;
}
if(ulStatus==UART_INT_RX)
{
if(modbus_tcp_rab==MODBUS_TCP_IDLE)
{
g_ulRxBufACount=0;
modbus_tcp_rab=MODBUS_TCP_RCV;
xMBPortEventPost(EV_READY);
}
while(!(HWREG(WIZ610_UART_BASE + UART_O_FR) & UART_FR_RXFE))
{
data=HWREG(WIZ610_UART_BASE+UART_O_DR);
g_ucRxBuf[g_ulRxBufACount]=data;
g_ulRxBufACount=(g_ulRxBufACount+1)&0x7f;
}
if(g_ulRxBufACount==WIZ_MB_TCP_UID)
{
len_data=g_ucRxBuf[4]<<8;
len_data|=g_ucRxBuf[5];
len_data=g_ulRxBufACount+len_data;
}
if(g_ulRxBufACount==len_data)
{
xMBPortEventPost(EV_FRAME_RECEIVED);
}
}
}
}
void uart_poweroff(uart_t uart)
{
ROM_UARTDisable(UART0_BASE);
}
