TM4C1294ncpdt new drawing board cannot download program

LiHuiyang

TM4C1294ncpdt new drawing board cannot download program [Copy link]

 

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

How many boards did you try? Maybe try soldering again to rule out soldering issues

strong161

It is easier to buy a lm4f232

LiHuiyang

strong161 Published on 2018-9-11 08:48 It is more convenient to buy a lm4f232

Can the development board be used for the company project?

LiHuiyang

Blue Rain Night posted on 2018-9-11 08:18 How many boards did you try? How about soldering another one to eliminate the soldering problem

I soldered 2 boards and it was the same

蓝雨夜

LiHuiyang posted on 2018-9-11 09:03 I soldered 2 pieces and they are all like this

Then it depends on your hardware! Check the minimum system!

strong161

LiHuiyang posted on 2018-9-11 09:03 I soldered 2 pieces and it was like this

It is normal to use a development board for a project. The one for coding and the one for drawing are separate. You can code the one first. If there is no problem with the hardware of the drawing board, you can just change another board to test it. If the drawing board is rotten, the project will be delayed... You can't even find the chip here. Either the welder is too rotten, or there is something wrong with the drawing board!

alan000345

The prompt "The controller cannot monitor the value on the EMU[1] pin" appears. This means that the wires on the board you drew are not connected to the pins of the microcontroller. Check the PCB to see if there are any wires connected. If not, try connecting them with flying wires.

LiHuiyang

strong161 Published on 2018-9-11 09:36 It is normal to use a development board for a project. The coding board and the drawing board are separated. The coding board can be used first. If there is no problem with the hardware of the drawing board, just change the board...

The program was adjusted using the development board, and I also drew my own board to use in the project, but I couldn't download the program. It's embarrassing. The power supply voltage is 3.246V, and the crystal oscillator is also oscillating.

LiHuiyang

alan000345 posted on 2018-9-11 09:55 It seems that the controller cannot monitor the value on the EMU[1] pin. This means that the wires on the board you drew are not connected to the single chip...

The clock circuit, reset circuit, and power supply are all normal. The only thing we can do is to find out if there is poor contact.

LiHuiyang

Blue Rain Night posted on 2018-9-11 09:32 Then we need to look at your hardware! Check the minimum system!

After checking, I suspect that the chip is FLASh locked and cannot download the program.

bulubulubulu

Use an oscilloscope to look at the waveforms of several lines of the Jtag port