TM4C1294ncpdt新画板子不能下载程序

LiHuiyang

TM4C1294ncpdt新画板子不能下载程序 [复制链接]

 

CCS连接测试如下

The controller cannot monitor the value on the EMU[1] pin.
The controller cannot control the timing on output pins.
The controller cannot control the timing on input pins.
The scan-path link-delay has been set to exactly '0' (0x0000).

-----[Perform the Integrity scan-test on the JTAG IR]------------------------

This test will use blocks of 64 32-bit words.
This test will be applied just once.

Do a test using 0xFFFFFFFF.
Scan tests: 1, skipped: 0, failed: 0
Do a test using 0x00000000.
Scan tests: 2, skipped: 0, failed: 0
Do a test using 0xFE03E0E2.
Scan tests: 3, skipped: 0, failed: 0
Do a test using 0x01FC1F1D.
Scan tests: 4, skipped: 0, failed: 0
Do a test using 0x5533CCAA.
Scan tests: 5, skipped: 0, failed: 0
Do a test using 0xAACC3355.
Scan tests: 6, skipped: 0, failed: 0
All of the values were scanned correctly.

The JTAG IR Integrity scan-test has succeeded.

-----[Perform the Integrity scan-test on the JTAG DR]------------------------

This test will use blocks of 64 32-bit words.
This test will be applied just once.

Do a test using 0xFFFFFFFF.
Scan tests: 1, skipped: 0, failed: 0
Do a test using 0x00000000.
Scan tests: 2, skipped: 0, failed: 0
Do a test using 0xFE03E0E2.
Scan tests: 3, skipped: 0, failed: 0
Do a test using 0x01FC1F1D.
Scan tests: 4, skipped: 0, failed: 0
Do a test using 0x5533CCAA.
Scan tests: 5, skipped: 0, failed: 0
Do a test using 0xAACC3355.
Scan tests: 6, skipped: 0, failed: 0
All of the values were scanned correctly.

The JTAG DR Integrity scan-test has succeeded.

[End: Texas Instruments XDS110 USB Debug Probe_0]

CCS调试错误如下

CORTEX_M4_0: Error connecting to the target: (Error -2062 @ 0x0) Unable to halt device. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 7.0.100.0)

用MDK能扫描到芯片ID。

实在解决不了了？希望哪位有类似经历的大佬给点解决思路，谢谢。

蓝雨夜

你试了几块板子啊？
要不再焊块试试

排除焊接问题

strong161

买块lm4f232更省事

LiHuiyang

strong161 发表于 2018-9-11 08:48
买块lm4f232更省事

公司项目用的，能用开发板？

LiHuiyang

蓝雨夜 发表于 2018-9-11 08:18
你试了几块板子啊？
要不再焊块试试

排除焊接问题

焊接了2块都是这样的

蓝雨夜

LiHuiyang 发表于 2018-9-11 09:03
焊接了2块都是这样的

那就要看看你硬件了！最小系统查查看了！

strong161

LiHuiyang 发表于 2018-9-11 09:03
焊接了2块都是这样的

项目用开发板很正常呀，撸码的与画板子的分开，撸码的可以先撸起来，画板子的硬件没有问题的时直接换个板子测试下不就行了，如果画板子的渣，项目就一直拖着了……你这边个连芯片都找不到，要不焊工太渣，要不就是画的板子有问题呀！

alan000345

看提示The controller cannot monitor the value on the EMU[1] pin，应该是你画的板子有线没有连接到单片机的引脚，你查查pcb板吧，应该是有没有连线的情况，不行用飞线接起来，试试吧。

LiHuiyang

strong161 发表于 2018-9-11 09:36
项目用开发板很正常呀，撸码的与画板子的分开，撸码的可以先撸起来，画板子的硬件没有问题的时直接换个板 ...

程序是用开发板调的，也画了自己的板子准备用在项目上，结果下不了程序，很尴尬啊。电源电压3.246V，晶振也起振了。

LiHuiyang

alan000345 发表于 2018-9-11 09:55
看提示The controller cannot monitor the value on the EMU[1] pin，应该是你画的板子有线没有连接到单片 ...

时钟电路，复位电路，电源都是正常的，那只能找找是不是接触不良这方面的原因了。

LiHuiyang

蓝雨夜 发表于 2018-9-11 09:32
那就要看看你硬件了！最小系统查查看了！

查了，我怀疑是不是芯片FLASh锁了，不能下载程序。

bulubulubulu

用示波器看一看Jtag口几条线的波形