/**
* @brief Entry point function for accessing option values.
* @param Selected option code.
* @retval void* - should be casted to appr. type.
*/
void* GetOption(option_types opt_code)
{ void* ret_val = NULL;
switch (opt_code)
{ case OPT_CONS_SPEED: { ret_val = GetConsSpeed(); break; }
case OPT_GPS_SPEED: { ret_val = GetGPSSpeed(); break; }
case OPT_ACFT_ID: { ret_val = GetAcftID(); break; }
case OPT_TX_POWER: { ret_val = GetTxPower(); break; }
case OPT_XTAL_CORR: { ret_val = GetXtalCorr(); break; }
case OPT_FREQ_OFS: { ret_val = GetFreqOfs(); break; }
case OPT_IWDG: { ret_val = GetIWDGDis(); break; }
case OPT_OPER_MODE: { ret_val = GetOperMode(); break; }
case OPT_CHANNEL: { ret_val = GetChannel(); break; }
case OPT_GPSDUMP: { ret_val = GetGPSDump(); break; }
case OPT_MAX_TX_PWR: { ret_val = GetMaxTxPower(); break;}
case OPT_GPS_ALW_ON: { ret_val = GetGPSAlwON(); break; }
case OPT_GPS_ANT: { ret_val = GetGPSAnt(); break; }
case OPT_JAM_RATIO: { ret_val = GetJamRatio(); break; }
case OPT_MIN_BAT_LVL:{ ret_val = GetMinBatLvl(); break; }
case OPT_GPS_WDG_TIME:{ ret_val = GetGPSWdgTime(); break; }
default: break; }
return ret_val; }
/* ISR for serial interrupt */
void rt_hw_serial_isr(rt_device_t device)
{
struct stm32_serial_device* uart = (struct stm32_serial_device*) device->user_data;
static unsigned char checksum = 0;
static uint16_t lenth;
// static unsigned char gprmcbuf[400];
static unsigned char isgprmc=0;
static unsigned short gprmccnt = 0;
if(USART_GetITStatus(uart->uart_device, USART_IT_RXNE) != RESET)
{
/* interrupt mode receive */
RT_ASSERT(device->flag & RT_DEVICE_FLAG_INT_RX);
/* save on rx buffer */
while (uart->uart_device->SR & USART_FLAG_RXNE)
{
rt_base_t level;
/* disable interrupt */
level = rt_hw_interrupt_disable();
/* save character */
if((&uart2_device )== device)
{
uartcount++;
uart->int_rx->rx_buffer[uart->int_rx->save_index] = uart->uart_device->DR & 0xff;
rt_device_write(&uart2_device, 0,&(uart->int_rx->rx_buffer[uart->int_rx->save_index]), 1);
checksum = checksum^(uart->int_rx->rx_buffer[uart->int_rx->save_index]);
switch (Uart2PackStatus )
{
case Get_sync_head:
if ((uart->int_rx->rx_buffer[uart->int_rx->save_index])== 0xaa)
{
checksum = uart->int_rx->rx_buffer[uart->int_rx->save_index];
Uart2PackStatus = Start_head_end;
}
else
{
uart->int_rx->getcmd = 0x7f;
}
break;
case Start_head_end:
if((uart->int_rx->rx_buffer[uart->int_rx->save_index])== 0x75)
{
Uart2PackStatus = Get_the_Command;
//rt_device_write(&uart2_device, 0,&(uart->int_rx->rx_buffer[uart->int_rx->save_index]), 1);
}
else
{
uart->int_rx->getcmd = 0x7f;
Uart2PackStatus = Get_sync_head;
}
break;
case Get_the_Command:
if(((uart->int_rx->rx_buffer[uart->int_rx->save_index]) <0x16)
||((uart->int_rx->rx_buffer[uart->int_rx->save_index])>0x81
&&(uart->int_rx->rx_buffer[uart->int_rx->save_index])<0x85 )
||((uart->int_rx->rx_buffer[uart->int_rx->save_index])>0x81
&&(uart->int_rx->rx_buffer[uart->int_rx->save_index])<0x85 )
||((uart->int_rx->rx_buffer[uart->int_rx->save_index])>0xc1
&&(uart->int_rx->rx_buffer[uart->int_rx->save_index])<0xc5 ))
{
Uart2PackStatus = Get_the_lenth_high;
}
else
{
uart->int_rx->getcmd = 0x7f;
Uart2PackStatus = Get_sync_head;
}
break;
case Get_the_lenth_high:
lenth = uart->int_rx->rx_buffer[uart->int_rx->save_index];
Uart2PackStatus = Get_the_lenth_low;
break;
case Get_the_lenth_low:
lenth = ((lenth<<8)&0xff00)+(uart->int_rx->rx_buffer[uart->int_rx->save_index]);
Uart2PackStatus = Get_the_reserve;
break;
case Get_the_reserve:
if (lenth != 0)
{
Uart2PackStatus = Get_the_data;
}
else
Uart2PackStatus = Get_the_checksum;
break;
case Get_the_data:
if(lenth )
lenth--;
if(lenth == 0)
Uart2PackStatus = Get_the_checksum;
break;
case Get_the_checksum:
if(checksum == 0)
{
uart->int_rx->getcmd ++;
}
else
{
uart->int_rx->getcmd = 0x7f;
}
Uart2PackStatus = Get_sync_head;
break;
default:
break;
}
uart->int_rx->save_index ++;
if (uart->int_rx->save_index >= UART_RX_BUFFER_SIZE)
uart->int_rx->save_index = 0;
/* if the next position is read index, discard this 'read char' */
if (uart->int_rx->save_index == uart->int_rx->read_index)
{
uart->int_rx->read_index ++;
if (uart->int_rx->read_index >= UART_RX_BUFFER_SIZE)
uart->int_rx->read_index = 0;
}
}
if((&uart3_device)== device)
{
if((uart->uart_device->DR & 0xff) == '$')
{
SectionID=0;
isgprmc = 0;
gprmccnt =0;
uart3flag =1;
}
else if((uart->uart_device->DR & 0xff)==',')
{
if((isgprmc == 1)&&(SectionID== FIELD_NIGHT))
{
//get the time
GetGPSLocation3(gprmcbuf,gprmccnt);
}
else if((isgprmc == 2) &&(SectionID == FIELD_SEVEN ))
{
GetGPSSpeed(gprmcbuf,gprmccnt);
}
SectionID++;
gprmccnt = 0;
uart3flag =2;
}
else
{
if(gprmccnt == 400)
{
gprmccnt = 0;
}
gprmcbuf[gprmccnt] = uart->uart_device->DR & 0xff;
gprmccnt++;
switch(SectionID)
{
case FIELD_NONE:
if(gprmccnt == 5)
{
uart3flag =2;
gprmccnt =0 ;
if ( (gprmcbuf[0] == 'G')
&&(gprmcbuf[1] == 'P')&&(gprmcbuf[2] =='G')
&&(gprmcbuf[3] =='G')&&(gprmcbuf[4] == 'A'))
{
isgprmc =1;//位置信息
}
if ( (gprmcbuf[0] == 'G')
&&(gprmcbuf[1] == 'P')&&(gprmcbuf[2] =='V')
&&(gprmcbuf[3] == 'T')&&(gprmcbuf[4] == 'G'))
{
isgprmc =2;//速度信息
uart3flag =2;
}
}
break;
case FIELD_ONE://提取时间
uart3flag =1;
if(isgprmc == 1)
{
if(gprmccnt == 10 )
{
//get the time
GetTheGPSTime(gprmcbuf);
}
}
break;
case FIELD_TWO: //判断数据是否可信(当GPS天线能接收到有3颗GPS卫星时为A，可信
if(isgprmc == 1)
{
if(gprmccnt == 9 )
{
//get the time
GetGPSLocation1(gprmcbuf);
}
}
break;
case FIELD_THREE://提取出纬度
break;
case FIELD_FOUR://提取出速度
if(isgprmc == 1)
{
if(gprmccnt == 10 )
{
//get the time
GetGPSLocation2(gprmcbuf);
}
}
break;
case FIELD_FIVE://提取出经度
break;
case FIELD_SEVEN:
if(isgprmc == 1)
{
if(gprmccnt == 2 )
{
//get the singal
GettheSinaldata(gprmcbuf);
}
}
break;
case FIELD_NIGHT://提取高度
break;
default:
break;
}
}
}
if((&uart4_device )== device)
{
gprmcbuf[gprmccnt] = uart->uart_device->DR & 0xff;
gprmccnt++;
}
/* enable interrupt */
rt_hw_interrupt_enable(level);
}
/* clear interrupt */
USART_ClearITPendingBit(uart->uart_device, USART_IT_RXNE);
/* invoke callback */
if (device->rx_indicate != RT_NULL)
{
rt_size_t rx_length;
/* get rx length */
rx_length = uart->int_rx->read_index > uart->int_rx->save_index ?
UART_RX_BUFFER_SIZE - uart->int_rx->read_index + uart->int_rx->save_index :
uart->int_rx->save_index - uart->int_rx->read_index;
device->rx_indicate(device, rx_length);
}
}
if (USART_GetITStatus(uart->uart_device, USART_IT_TC) != RESET)
{
/* clear interrupt */
USART_ClearITPendingBit(uart->uart_device, USART_IT_TC);
}
}
