Excuse me!
I'm debugging plugin GPS module, GPS module circuit design (rs232 interface) - 3.3 V to 1.8 V, the use of ti company TXS0108E chip - "master is qualcomm 8953
In practical use, the majority of machine data from the GPS module (rs232 interface), 1.8 V, through the TXS0108E chip through rs232 output when master qualcomm 8953
The data is correct,
But 20% of the machine data in qualcomm 8953 chip, using Linux directly view the data
The cat/dev/ttyHSL2 read data is garbled, namely incorrect data
Excuse me, from the perspective of software and hardware, how to optimize, thank you thank you,
RS232 standard of anti-interference, overload capacity, waveform how to judge? Really doubt,
CodePudding user response:
Please the great god guidance