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main.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import os, sys
from Ui import ui_MainWindow
from PyQt5.QtWidgets import QApplication, QMainWindow, QFontDialog, QFileDialog, QMessageBox
from PyQt5 import QtCore, QtGui, QtWidgets
import struct
import threading, time
import jlink
from kfifo import *
COTEX_RAM_BASE = 0x20000000
RTT_TAG = "SEGGER RTT"
if getattr(sys, 'frozen', False): # we are running in a |PyInstaller| bundle
basedir = sys._MEIPASS
else: # we are running in a normal Python environment
basedir = os.path.dirname(__file__)
jlinkdllpath = os.path.join(basedir, "JLink_x64.dll")
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.uiInit()
self.action_init()
self.jlink = None
self.RTT_addr = None
self.aUp = None
self.aDown = None
self.closed = False
threading.Thread(target=self.serial_recv).start()
def uiInit(self):
self.ui = ui_MainWindow.Ui_MainWindow()
self.ui.setupUi(self)
self.ui.plainTextEdit.document().setMaximumBlockCount(1000)
self.lineLbl = QtWidgets.QLabel()
self.lineLbl.setToolTip(u"行数")
self.lineLbl.setText("0")
self.ui.statusbar.addPermanentWidget(self.lineLbl)
def action_init(self):
self.ui.actionStart.triggered.connect(self.on_btn_start_clicked)
self.ui.actionFont.triggered.connect(self.on_btn_font_clicked)
self.ui.actionClear.triggered.connect(self.on_btn_clear_clicked)
self.ui.actionSave.triggered.connect(self.onBtnSaveClicked)
self.ui.actionAbout.triggered.connect(self.about)
self.ui.plainTextEdit.signal_key.connect(self.on_text_edit_key_pressed)
def about(self):
QMessageBox.about(self, "About Console",
"Version 1.1 build at 20170419<br/>"
"Copyright @ dudulung<br/>")
def get_RTT_addr(self):
idx = 0
while idx < (20*1024):
data = self.jlink.read(COTEX_RAM_BASE + idx, 0x80)
addr = data.find(RTT_TAG.encode())
if addr >= 0:
return COTEX_RAM_BASE + idx + addr
idx += 0x80-16
return COTEX_RAM_BASE
def mem_read(self, addr, data_len):
return self.jlink.read(addr, data_len)
def mem_write(self, addr, data):
self.jlink.write(addr, data)
def setup_ring_buffer(self):
"""
struct __kfifo
{
unsigned int in;
unsigned int out;
unsigned int mask;
unsigned int esize;
void *data;
};
typedef struct
{
char acID[16];
struct __kfifo fifo_up;
struct __kfifo fifo_down;
uint8_t mode_up;
uint8_t mode_down;
} SEGGER_RTT_CB;
"""
LEN = (4 * 5) * 2
data = self.jlink.read(self.RTT_addr + 16, LEN)
arr = struct.unpack('10L', data)
self.aUp = RingBuffer(self.mem_read, self.mem_write, arr[0:5])
self.aDown = RingBuffer(self.mem_read, self.mem_write, arr[5:10])
def on_btn_font_clicked(self):
font, ok = QFontDialog.getFont(self)
if ok:
self.ui.plainTextEdit.setFont(font)
def on_btn_clear_clicked(self):
self.ui.plainTextEdit.clear()
self.lineLbl.setText("0")
def onBtnSaveClicked(self):
fname, ftype = QFileDialog.getSaveFileName(self, u"请选择保存文件", ".", "LOG Files(*.log)")
if fname:
with open(fname, 'w') as logfile:
logfile.write(str(self.ui.plainTextEdit.toPlainText()))
def on_btn_start_clicked(self):
if self.ui.actionStart.text() == u'Start':
try:
self.jlink = jlink.Jlink(jlinkdllpath)
self.jlink.get_hardware_verion()
self.jlink.set_mode(jlink.JLINK_MODE_SWD)
self.jlink.set_speed(4000)
self.RTT_addr = self.get_RTT_addr()
self.setup_ring_buffer()
self.ui.statusbar.showMessage(u"开启监控成功")
self.ui.actionStart.setText(u'Stop')
except jlink.JlinkError as e:
QMessageBox.critical(self, u"错误", u"'{}'.".format(e))
#self.on_btn_dll_clicked()
del self.jlink
self.jlink = None
except Exception as e:
print(e)
self.ui.statusbar.showMessage(u"开启监控失败")
else:
self.ui.actionStart.setText(u'Start')
time.sleep(0.1)
self.jlink.close()
del self.jlink
self.jlink = None
self.ui.statusbar.showMessage(u"关闭监控成功")
def update_ring_buffer(self):
self.aUp.WrOff = self.jlink.read_32(self.RTT_addr + 16 + (4 * 5) * 0 + 4 * 0)
self.aUp.RdOff = self.jlink.read_32(self.RTT_addr + 16 + (4 * 5) * 0 + 4 * 1)
self.aUp.pBuffer = self.jlink.read_32(self.RTT_addr + 16 + (4 * 5) * 0 + 4 * 4)
self.aDown.RdOff = self.jlink.read_32(self.RTT_addr + 16 + (4 * 5) * 1 + 4 * 1)
def chn_down_full(self):
return self.aDown.fifo_full()
def chn_up_empty(self):
return self.aUp.fifo_empty()
def chn_up_read(self):
len = self.aUp.fifo_len()
b = self.aUp.fifo_out(len)
self.jlink.write_32(self.RTT_addr + 16 + (4 * 5) * 0 + 4, self.aUp.RdOff)
return b
def on_text_edit_key_pressed(self, keyarr):
# do not response key event while jlink closed
if self.jlink is None or not self.jlink.is_open():
self.ui.statusbar.showMessage(u"请点击start开启监控")
return
if not self.aDown.fifo_full():
#print(keyarr)
self.aDown.fifo_in(bytes(keyarr))
self.jlink.write_32(self.RTT_addr + 16 + (4 * 5) * 1 + 0, self.aDown.WrOff)
received = QtCore.pyqtSignal(bytearray)
def serial_recv(self):
self.received.connect(self.on_received)
while not self.closed:
if self.ui.actionStart.text() == u'Stop':
self.update_ring_buffer()
if not self.chn_up_empty():
self.received.emit(self.chn_up_read())
time.sleep(0.01)
def on_received(self, bytesUp):
try:
self.ui.plainTextEdit.moveCursor(QtGui.QTextCursor.End)
self.ui.plainTextEdit.insertPlainText(bytesUp.decode())
self.ui.plainTextEdit.moveCursor(QtGui.QTextCursor.End)
self.lineLbl.setText(str(self.ui.plainTextEdit.document().lineCount()))
except Exception as e:
QMessageBox.critical(self, u"错误", str(e))
def closeEvent(self, evt):
self.closed = True
time.sleep(0.1)
if self.jlink and self.jlink.is_open():
self.jlink.close()
if __name__ == '__main__':
app = QApplication(sys.argv)
w = MainWindow()
w.show()
sys.exit(app.exec_())