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我有一個小的python示例,我從另一個網站上下來了。我正試圖瞭解如何使用它從串行讀取。Python串行讀取返回奇怪的值
我送從FRDM K64f板信息通過串行和Python程序讀取此,但返回一個奇怪的值,下面是其中的一個示例:
YVkJZC
我的Python代碼:
import time
import serial
# configure the serial connections (the parameters differs on the device you are connecting to)
ser = serial.Serial(
port='/dev/ttyACM0',
baudrate=9600,
parity=serial.PARITY_ODD,
stopbits=serial.STOPBITS_TWO,
bytesize=serial.SEVENBITS
)
ser.isOpen()
print 'Enter your commands below.\r\nInsert "exit" to leave the application.'
input=1
while 1 :
# get keyboard input
input = raw_input(">> ")
# Python 3 users
# input = input(">> ")
if input == 'exit':
ser.close()
exit()
else:
# send the character to the device
# (note that I happend a \r\n carriage return and line feed to the characters - this is requested by my device)
ser.write(input + '\r\n')
out = ''
# let's wait one second before reading output (let's give device time to answer)
time.sleep(1)
while ser.inWaiting() > 0:
out += ser.read(1)
if out != '':
print ">>" + out
這是我的板代碼:
int main(){
Serial pc(USBTX, USBRX);
pc.baud(9600);
while(1){
char c = pc.getc();
if((c == 'w')) {
pc.printf("Hello");
}
}
}
我得到的確切回報是這樣的:
Enter your commands below.
Insert "exit" to leave the application.
>> w
>>YVkJ�ZC
>>
你希望從'ser'獲得什麼樣的數據? – acdr
如果沒有真正想過它,我還沒有在Python中使用過串行。 BUut我希望我可以從板 – UniqueName
返回字符串的值,因爲也許你得到的那些「無意義」字符串實際上是你得到的,如果你解釋你得到的數據作爲unicode(或任何編碼)字符串。 – acdr