换了根usb线连接可以输入字符,模块连接到板子的uart3口,就是蓝色下那个口,输入cat /dev/ttysWK2有数据输出,大概是这样的:
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,00,txbuf alloc*7F
$GPTXT,01,01,01,NMEA unknown msg*58
$GPRMC,082557.00,V,,,,,,,290918,,,N*7B
$GPVTG,,,,,,,,,N*30
$GPGGA,082557.00,,,,,0,00,99.99,,,,,,*6B
$GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30
$GPGSV,2,1,08,02,08,154,,05,33,092,,13,43,037,,15,69,333,*7F
$GPGSV,2,2,08,20,19,306,18,21,43,306,,24,49,174,21,29,16,225,*75
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