Hi, i want to connect the MIMXRT685 (Cortex M33) either in DS5 (v5.29.3) or in ARM Development Studio 2021, but unsuccessful. I used as Debugger:
DSTREAM ST/PT Firmware 7.4..0-3i in ARM Dev. Studio and
DSTREAM ST/PT Firmware ARM_RVI_4.34.0-132.
I get these errors:
In ARM Development Studio 2021 :"Scanchain detection failure: Detected number of devices = 136, maximum allowed = 128. This problem is usually a result of the scanchain not acting correctly when using JTAG scans to count the number of devices"
In DS5: "Scanchain detection failure: Detected number of devices = 1.024, maximum allowed = 1.023. This problem is usually a result of the scanchain not acting correctly when using JTAG scans to count the number of devices"
Can you help me to reslove this problem.
Thanks in advance
I don't have a board to hand, but looking at the datasheet, it mentions serial wire debug. Have you set this in your DS setup?
See also this brief tutorial videohttps://developer.arm.com/tools-and-software/embedded/arm-development-studio/learn/resources/media-articles/2021/04/create-a-new-swd-configuration