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add daplink support
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@XIVN1987
XIVN1987 committed Jun 7, 2021
1 parent 0d92123 commit 32a2844
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Showing 71 changed files with 12,670 additions and 155 deletions.
12 changes: 7 additions & 5 deletions README.md
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Original file line number Diff line number Diff line change
@@ -1,10 +1,12 @@
# JRTTView
SEGGER-RTT Client using J-LINK Debugger
# RTTView
SEGGER-RTT Client for J-LINK and DAPLink

to run software, you need python 3.6, pyqt5 and pyqtchart
To run software, you need python 3.6, pyqt5 and pyqtchart.

To use DAPLink, you need additional pyusb for CMSIS-DAPv2 and another usb-backend for CMSIS-DAPv1 (hidapi or pywinusb for windows, hidapi for mac, pyusb for linux).

wave show:
![](https://github.com/XIVN1987/JRTTView/blob/master/截屏.gif)
![](https://github.com/XIVN1987/RTTView/blob/master/截屏.gif)

data format for wave show:
+ 1 wave: 11, 22, 33,
Expand All @@ -13,4 +15,4 @@ data format for wave show:
+ 4 wave: 11 22 33 44, 55 66 77 88, 99 11 22 33,

input:
![](https://github.com/XIVN1987/JRTTView/blob/master/截屏.jpg)
![](https://github.com/XIVN1987/RTTView/blob/master/截屏.jpg)
142 changes: 80 additions & 62 deletions RTTView.py
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Original file line number Diff line number Diff line change
@@ -1,7 +1,6 @@
#! python3
#!python3
import os
import sys
import time
import ctypes
import configparser

Expand All @@ -10,6 +9,9 @@
from PyQt5.QtWidgets import QApplication, QWidget, QFileDialog
from PyQt5.QtChart import QChart, QChartView, QLineSeries, QLegend

import jlink
import xlink


N_CURVES = 4

Expand Down Expand Up @@ -59,6 +61,7 @@ def __init__(self, parent=None):
self.tmrRTT.start()

self.tmrRTT_Cnt = 0
self.tmrDAP_Cnt = 0

def initSetting(self):
if not os.path.exists('setting.ini'):
Expand All @@ -70,13 +73,11 @@ def initSetting(self):
if not self.conf.has_section('J-Link'):
self.conf.add_section('J-Link')
self.conf.set('J-Link', 'dllpath', '')
self.conf.set('J-Link', 'mcucore', 'Cortex-M0')
self.conf.add_section('Memory')
self.conf.set('Memory', 'rttaddr', '0x20000000')

self.linDLL.setText(self.conf.get('J-Link', 'dllpath'))
self.cmbDLL.setItemText(0, self.conf.get('J-Link', 'dllpath'))
self.linRTT.setText(self.conf.get('Memory', 'rttaddr'))
self.cmbCore.setCurrentIndex(self.cmbCore.findText(self.conf.get('J-Link', 'mcucore')))

def initQwtPlot(self):
self.PlotData = [[0]*1000 for i in range(N_CURVES)]
Expand All @@ -94,76 +95,106 @@ def initQwtPlot(self):
def on_btnOpen_clicked(self):
if self.btnOpen.text() == '打开连接':
try:
self.jlink = ctypes.cdll.LoadLibrary(self.linDLL.text())
if self.cmbDLL.currentIndex() == 0:
self.xlk = xlink.XLink(jlink.JLink(self.cmbDLL.currentText(), 'Cortex-M0'))

else:
from pyocd.coresight import dap, ap, cortex_m
daplink = self.daplinks[self.cmbDLL.currentIndex() - 1]
daplink.open()

err_buf = (ctypes.c_char * 64)()
self.jlink.JLINKARM_ExecCommand(f'Device = {self.cmbCore.currentText()}'.encode('latin-1'), err_buf, 64)
_dp = dap.DebugPort(daplink, None)
_dp.init()
_dp.power_up_debug()

self.jlink.JLINKARM_TIF_Select(1)
self.jlink.JLINKARM_SetSpeed(4000)
_ap = ap.AHB_AP(_dp, 0)
_ap.init()

self.xlk = xlink.XLink(cortex_m.CortexM(None, _ap))

buff = ctypes.create_string_buffer(1024)
Addr = int(self.linRTT.text(), 16)
addr = int(self.linRTT.text(), 16)
for i in range(128):
self.jlink.JLINKARM_ReadMem(Addr + 1024*i, 1024, buff)
index = buff.raw.find(b'SEGGER RTT')
data = self.xlk.read_mem_U8(addr + 1024 * i, 1024 + 32) # 多读32字节，防止搜索内容在边界处
index = bytes(data).find(b'SEGGER RTT')
if index != -1:
self.RTTAddr = Addr + 1024*i + index
self.RTTAddr = addr + 1024 * i + index

buff = ctypes.create_string_buffer(ctypes.sizeof(SEGGER_RTT_CB))
self.jlink.JLINKARM_ReadMem(self.RTTAddr, ctypes.sizeof(SEGGER_RTT_CB), buff)
data = self.xlk.read_mem_U8(self.RTTAddr, ctypes.sizeof(SEGGER_RTT_CB))

rtt_cb = SEGGER_RTT_CB.from_buffer(buff)
rtt_cb = SEGGER_RTT_CB.from_buffer(bytearray(data))
self.aUpAddr = self.RTTAddr + 16 + 4 + 4
self.aDownAddr = self.aUpAddr + ctypes.sizeof(RingBuffer) * rtt_cb.MaxNumUpBuffers

self.txtMain.append(f'\n_SEGGER_RTT @ 0x{self.RTTAddr:08X} with {rtt_cb.MaxNumUpBuffers} aUp and {rtt_cb.MaxNumDownBuffers} aDown\n')
break

else:
raise Exception('Can not find _SEGGER_RTT')

except Exception as e:
self.txtMain.append(f'\n{str(e)}\n')

else:
self.linDLL.setEnabled(False)
self.cmbDLL.setEnabled(False)
self.btnDLL.setEnabled(False)
self.linRTT.setEnabled(False)
self.cmbCore.setEnabled(False)
self.btnOpen.setText('关闭连接')

else:
self.linDLL.setEnabled(True)
self.xlk.close()
self.cmbDLL.setEnabled(True)
self.btnDLL.setEnabled(True)
self.linRTT.setEnabled(True)
self.cmbCore.setEnabled(True)
self.btnOpen.setText('打开连接')

def aUpRead(self):
buf = ctypes.create_string_buffer(ctypes.sizeof(RingBuffer))
self.jlink.JLINKARM_ReadMem(self.aUpAddr, ctypes.sizeof(RingBuffer), buf)
data = self.xlk.read_mem_U8(self.aUpAddr, ctypes.sizeof(RingBuffer))

aUp = RingBuffer.from_buffer(buf)
aUp = RingBuffer.from_buffer(bytearray(data))

if aUp.RdOff == aUp.WrOff:
str = ctypes.create_string_buffer(0)
data = []

elif aUp.RdOff < aUp.WrOff:
cnt = aUp.WrOff - aUp.RdOff
str = ctypes.create_string_buffer(cnt)
self.jlink.JLINKARM_ReadMem(ctypes.cast(aUp.pBuffer, ctypes.c_void_p).value + aUp.RdOff, cnt, str)
data = self.xlk.read_mem_U8(ctypes.cast(aUp.pBuffer, ctypes.c_void_p).value + aUp.RdOff, cnt)

aUp.RdOff += cnt

self.jlink.JLINKARM_WriteU32(self.aUpAddr + 4*4, aUp.RdOff)
self.xlk.write_U32(self.aUpAddr + 4*4, aUp.RdOff)

else:
cnt = aUp.SizeOfBuffer - aUp.RdOff
str = ctypes.create_string_buffer(cnt)
self.jlink.JLINKARM_ReadMem(ctypes.cast(aUp.pBuffer, ctypes.c_void_p).value + aUp.RdOff, cnt, str)
data = self.xlk.read_mem_U8(ctypes.cast(aUp.pBuffer, ctypes.c_void_p).value + aUp.RdOff, cnt)

aUp.RdOff = 0 #这样下次再读就会进入执行上个条件

self.jlink.JLINKARM_WriteU32(self.aUpAddr + 4*4, aUp.RdOff)
self.xlk.write_U32(self.aUpAddr + 4*4, aUp.RdOff)

return str.raw
return bytes(data)

def aDownWrite(self, bytes):
data = self.xlk.read_mem_U8(self.aDownAddr, ctypes.sizeof(RingBuffer))

aDown = RingBuffer.from_buffer(bytearray(data))

if aDown.WrOff >= aDown.RdOff:
if aDown.RdOff != 0: cnt = min(aDown.SizeOfBuffer - aDown.WrOff, len(bytes))
else: cnt = min(aDown.SizeOfBuffer - 1 - aDown.WrOff, len(bytes)) # 写入操作不能使得 aDown.WrOff == aDown.RdOff，以区分满和空
self.xlk.write_mem(ctypes.cast(aDown.pBuffer, ctypes.c_void_p).value + aDown.WrOff, bytes[:cnt])

aDown.WrOff += cnt
if aDown.WrOff == aDown.SizeOfBuffer: aDown.WrOff = 0

bytes = bytes[cnt:]

if bytes and aDown.RdOff != 0 and aDown.RdOff != 1: # != 0 确保 aDown.WrOff 折返回 0，!= 1 确保有空间可写入
cnt = min(aDown.RdOff - 1 - aDown.WrOff, len(bytes)) # - 1 确保写入操作不导致WrOff与RdOff指向同一位置
self.xlk.write_mem(ctypes.cast(aDown.pBuffer, ctypes.c_void_p).value + aDown.WrOff, bytes[:cnt])

aDown.WrOff += cnt

self.xlk.write_U32(self.aDownAddr + 4*3, aDown.WrOff)

def on_tmrRTT_timeout(self):
if self.btnOpen.text() == '关闭连接':
Expand Down Expand Up @@ -223,32 +254,20 @@ def on_tmrRTT_timeout(self):
except Exception as e:
self.rcvbuff = b''
print(str(e)) # 波形显示模式下 txtMain 不可见，因此错误信息不能显示在其上

def aDownWrite(self, bytes):
buf = ctypes.create_string_buffer(ctypes.sizeof(RingBuffer))
self.jlink.JLINKARM_ReadMem(self.aDownAddr, ctypes.sizeof(RingBuffer), buf)

aDown = RingBuffer.from_buffer(buf)

if aDown.WrOff >= aDown.RdOff:
if aDown.RdOff != 0: cnt = min(aDown.SizeOfBuffer - aDown.WrOff, len(bytes))
else: cnt = min(aDown.SizeOfBuffer - 1 - aDown.WrOff, len(bytes)) # 写入操作不能使得 aDown.WrOff == aDown.RdOff，以区分满和空
str = ctypes.create_string_buffer(bytes[:cnt])
self.jlink.JLINKARM_WriteMem(ctypes.cast(aDown.pBuffer, ctypes.c_void_p).value + aDown.WrOff, cnt, str)

aDown.WrOff += cnt
if aDown.WrOff == aDown.SizeOfBuffer: aDown.WrOff = 0

bytes = bytes[cnt:]

if bytes and aDown.RdOff != 0 and aDown.RdOff != 1: # != 0 确保 aDown.WrOff 折返回 0，!= 1 确保有空间可写入
cnt = min(aDown.RdOff - 1 - aDown.WrOff, len(bytes)) # - 1 确保写入操作不导致WrOff与RdOff指向同一位置
str = ctypes.create_string_buffer(bytes[:cnt])
self.jlink.JLINKARM_WriteMem(ctypes.cast(aDown.pBuffer, ctypes.c_void_p).value + aDown.WrOff, cnt, str)

aDown.WrOff += cnt

self.jlink.JLINKARM_WriteU32(self.aDownAddr + 4*3, aDown.WrOff)
else:
self.tmrDAP_Cnt += 1
if self.tmrDAP_Cnt % 100 == 0:
try:
from pyocd.probe import aggregator
self.daplinks = aggregator.DebugProbeAggregator.get_all_connected_probes()
if len(self.daplinks) != self.cmbDLL.count() - 1:
for i in range(1, self.cmbDLL.count()):
self.cmbDLL.removeItem(i)
for i, daplink in enumerate(self.daplinks):
self.cmbDLL.addItem(daplink.product_name)
except Exception as e:
pass

@pyqtSlot()
def on_btnSend_clicked(self):
Expand All @@ -266,9 +285,9 @@ def on_btnSend_clicked(self):

@pyqtSlot()
def on_btnDLL_clicked(self):
dllpath, filter = QFileDialog.getOpenFileName(caption='JLink_x64.dll路径', filter='动态链接库文件 (*.dll)', directory=self.linDLL.text())
dllpath, filter = QFileDialog.getOpenFileName(caption='JLink_x64.dll路径', filter='动态链接库文件 (*.dll)', directory=self.cmbDLL.itemText(0))
if dllpath != '':
self.linDLL.setText(dllpath)
self.cmbDLL.setItemText(0, dllpath)

@pyqtSlot(int)
def on_chkWavShow_stateChanged(self, state):
Expand All @@ -280,8 +299,7 @@ def on_btnClear_clicked(self):
self.txtMain.clear()

def closeEvent(self, evt):
self.conf.set('J-Link', 'dllpath', self.linDLL.text())
self.conf.set('J-Link', 'mcucore', self.cmbCore.currentText())
self.conf.set('J-Link', 'dllpath', self.cmbDLL.itemText(0))
self.conf.set('Memory', 'rttaddr', self.linRTT.text())
self.conf.write(open('setting.ini', 'w', encoding='utf-8'))

Expand Down
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