Can detect IC, but cannot program PSoC 4100S at 5V power

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GrWa_2302706
Level 4
Level 4
50 questions asked 25 replies posted 10 replies posted

Hi

1. Design with PSoC 4100S. XRES pull-up resistor is 4.7k, capacitor to GND is 0.1uF. No pull-up or series resistor on SWDIO and SWDCLK. System power should be 5V.

2. Miniprog3 can program PSoC at 3.3V, cannot program PSoC at 5V no matter programmer powered or external powered.

    While using PSoC Creator, powered at 5V, we found IC part number could be detected, "Programming" was shown in the output window but couldn't move on and then failed.

3. Miniprog4 cannot program no matter powered at 5V or 3.3V. It failed at detecting IC.

Could you give some suggestions on how to fix the problem ? Thanks.

BR

Grace

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1 Solution
Roy_Liu
Moderator
Moderator
Moderator
5 comments on KBA First comment on KBA 10 questions asked

这个情况大多是硬件(板子)问题,例如杜邦线较长(越短越好),XRES上电阻电容在原型板上是不推荐的。PSoC 供电不通畅什么的。

有条件可以用示波器看下Vtarg, GND, SWDIO,SWDCLK的波形,结合CY8C4xxx, CYBLxxxx Programming Specifications 一般能找到问题。

Roy Liu

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3 Replies
LinglingG_46
Moderator
Moderator
Moderator
500 solutions authored 1000 replies posted 10 questions asked

Hi Grace,

你是用的什么线连接的minprog3 或者minprog4,这个线我们推荐的5cm杜邦线。

那你如果选择1.8v供电的话,是否可以烧写?

分析这个问题需要提供客户的PCB文件。

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Hi Lingling

线是比杜邦线细一点的,10cm左右。

1.8V不能烧录。

客户的硬件文件不能分享,板子不能拿出来,所以问问你们那边有没有遇到过类似的问题的。

我先让客户再验证几块板子试试。

谢谢。

Grace

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Roy_Liu
Moderator
Moderator
Moderator
5 comments on KBA First comment on KBA 10 questions asked

这个情况大多是硬件(板子)问题,例如杜邦线较长(越短越好),XRES上电阻电容在原型板上是不推荐的。PSoC 供电不通畅什么的。

有条件可以用示波器看下Vtarg, GND, SWDIO,SWDCLK的波形,结合CY8C4xxx, CYBLxxxx Programming Specifications 一般能找到问题。

Roy Liu