在添加了lwgps后，测试用例使用不了，有同学弄过这一块吗？我的怎么就是不行呢…. 我用的是和芯星通的GPS芯片。
//*****************************************************************************
// file : lwgps2rtt.c
// porting lwgps to rt-thread //
// Change Logs:
// Date Author Note
// 2020/09/05 Cheney First draft version
// 2020/09/13 Cheney 1. Update the comments.
// 2. Support gps info query interface.
// 2020/10/10 Cheney Support macros LWGPS_CFG_STATUS
// 2020/12/15 Cheney Configure the uart before using it.
//
//*****************************************************************************
//*****************************************************************************
//
//! \addtogroup lwgps
//! @{
//
//*****************************************************************************
#include
#include
#include
#include "lwgps.h"
#ifndef GPS_MODULE_BAUD_RATE
#define GPS_MODULE_BAUD_RATE BAUD_RATE_9600
#endif
static lwgps_t h_lwgps;
static rt_device_t serial = RT_NULL;
static struct rt_semaphore rx_sem;
static rt_thread_t lwgps_tid = RT_NULL;
static rt_mutex_t lwgps_mutex = RT_NULL;
/**
* \brief gps uart date received callback
*
* \param dev: uart device
* \param size: data size
* \return rt_err_t: operation result.
*/
static rt_err_t uart_input(rt_device_t dev, rt_size_t size)
{
rt_sem_release(&rx_sem);
return RT_EOK;
}
#if LWGPS_CFG_STATUS == 1
void lwgps_process_cbk(lwgps_statement_t res)
{
// TODO: give the interface to user.
}
#endif
/**
* \brief lwgps process thread
*
* \param parameter: input parameters.
*/
static void lwgps_thread_entry(void *parameter)
{
rt_uint8_t ch;
while (RT_TRUE)
{
rt_sem_take(&rx_sem, RT_TICK_PER_SECOND);
while (rt_device_read(serial, -1, &ch, 1) == 1)
{
rt_mutex_take(lwgps_mutex, RT_WAITING_FOREVER);
rt_kprintf("%c",ch);
#if LWGPS_CFG_STATUS == 1
lwgps_process(&h_lwgps, &ch, 1, lwgps_process_cbk);
#else
lwgps_process(&h_lwgps, &ch, 1);
// rt_kprintf("Valid status: %d\r\n", h_lwgps.is_valid);
// rt_kprintf("Latitude: %f degrees\r\n", h_lwgps.latitude);
// rt_kprintf("Longitude: %f degrees\r\n", h_lwgps.longitude);
// rt_kprintf("Altitude: %f meters\r\n", h_lwgps.altitude);
#endif
rt_mutex_release(lwgps_mutex);
}
}
}
/**
* \brief get gps information
*
* \param gps_info: gps information.
*/
void lwgps2rtt_get_gps_info(lwgps_t *gps_info)
{
rt_mutex_take(lwgps_mutex, RT_WAITING_FOREVER);
rt_memcpy(gps_info, &h_lwgps, (sizeof(h_lwgps) - sizeof(h_lwgps.p)));
//rt_kprintf("latitude is %f\n",gps_info)
rt_mutex_release(lwgps_mutex);
}
/**
* \brief module init
*
* \param uart_dev_name: uart device name
*/
void lwgps2rtt_init(void)
{
serial = rt_device_find("uart3");
if (!serial)
{
rt_kprintf("uart find %s failed!\n", "uart3");
return;
}
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
config.baud_rate = GPS_MODULE_BAUD_RATE;
config.data_bits = DATA_BITS_8;
config.stop_bits = STOP_BITS_1;
config.parity = PARITY_NONE;
rt_device_control(serial, RT_DEVICE_CTRL_CONFIG, &config);
lwgps_mutex = rt_mutex_create("lwgps_mutex", RT_IPC_FLAG_FIFO);
rt_sem_init(&rx_sem, "rx_sem", 0, RT_IPC_FLAG_FIFO);
rt_device_open(serial, RT_DEVICE_FLAG_INT_RX);
rt_device_set_rx_indicate(serial, uart_input);
lwgps_init(&h_lwgps);
lwgps_tid = rt_thread_create("lwgps", lwgps_thread_entry, RT_NULL, 2048, 20, 4);
if (lwgps_tid != RT_NULL)
rt_thread_startup(lwgps_tid);
}
/**
* \brief module deinit
*
*/
void lwgps2rtt_deinit(void)
{
if (serial != RT_NULL)
{
rt_device_close(serial);
rt_device_set_rx_indicate(serial, RT_NULL);
}
if (lwgps_tid != RT_NULL)
{
rt_thread_delete(lwgps_tid);
}
if (lwgps_mutex != RT_NULL)
{
rt_mutex_delete(lwgps_mutex);
}
serial = RT_NULL;
lwgps_tid = RT_NULL;
lwgps_mutex = RT_NULL;
}
INIT_APP_EXPORT(lwgps2rtt_init);
#include
#define DBG_TAG "main"
#define DBG_LVL DBG_LOG
#include
#include "lwgps/lwgps.h"
lwgps_t gps_info;
int main(void)
{
int count = 1;
while (1)
{
//LOG_D("Hello RT-Thread!");
//rt_thread_mdelay(1000);
lwgps2rtt_get_gps_info(&gps_info);
rt_kprintf("hour: %d\r\n", gps_info.hours);
rt_kprintf("minute: %d\r\n", gps_info.minutes);
rt_kprintf("seconds: %d\r\n", gps_info.seconds);
rt_kprintf("Latitude: %f degrees\r\n", gps_info.latitude);
rt_kprintf("Longitude: %f degrees\r\n", gps_info.longitude);
rt_kprintf("Altitude: %f meters\r\n", gps_info.altitude);
}
return RT_EOK;
}
测试打印如图所示
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