wuxx / nanodap-hs Goto Github PK

目录里三个固件什么区别

Failed connecting to i.MX RT1064. Here's some conditions I've tested.

1. Latest firmware (sam3u2c_if_20210514.hex), Hardware reset in IAR EWARM 9.20.
2. Latest firmware (sam3u2c_if_20210514.hex), Soft reset in IAR EWARM 9.20.
3. Latest firmware (sam3u2c_if_20210514.hex), Soft reset in IAR EWARM 9.20. SWD speed redudced to 1MHz.
4. Latest firmware (sam3u2c_if_20210514.hex), Hardware reset with OpenOCD.
5. Old firmware (sam3u2c_if_20191122.hex), Hardware reset in IAR EWARM 9.20.

The same board could be accessed with Seekfree DAP-Link (which is a low speed DAP-Link).

i.MX RT1064 is a high performance Cortex-M7 MCU from NXP.

I'm able to program and debug a KV58 system (which is also a Cortex-M7 paltform from NXP) with this DAP-Link.

Hope you could do further investigation into this problem. If you need further test result or have a beta firmware,
feel free to contact me. Many Thanks!

拖拽烧录后出现 FAIL.TXT，里面内容为

error: The transfer timed out.
type: transient, user

使用的是 STM32F103c8t6

Openocd added multi-drop support, but it needs CMSIS-DAP support SWD_Sequeue. It means we need a firmware that is newer than this commit, for version, it is v0257.
If no newer firmware, nanoDAP-HS can't debug hardware with multi-drop, such as Raspberry Pi Pico.
Hope nanoDAP-HS can be better and better.

Hello,

nanoDAP-HS adapters are great, but they are limited to 3.3V interfacing.
I would like to design a small interface board for isolation and level shifting of the JTAG/SWD signals.
For JTAG, it is no problem, but for SWD, as the SWDIO signal is bidirectional, it is more problematic.
Classic bidirectional isolators or level shifters do not work that great for SWD. So ideally, it would be great if the firmware in SWD mode would output the direction of SWDIO (for instance: 0 = OUT, 1 = IN) on a separate pin (for instance TDI or TDO which are not used currently for SWD) to control the direction on the interface board.

Let me know if this is possible or if we can have access to the firmware source code.

什么时候能增加这个功能呢

支持的话，有没有攻略和脚本？谢谢

可以把Boot和EN映射到两个脚上

STLINK-V3 测试虚拟串口可以到16Mb稳定.
测试了 DAP link 虚拟串口
当配置 波特率小于 921600 时没问题
当配置 波特率大于 921600 时不准确:
配置波特率为 2304000(2.3Mb) 时位时间应当为 434 ns, 但实际测试位时间为 320 ns
配置波特率为 4608000(4.6Mb) 时位时间应当为 217 ns, 但实际测试位时间为 160 ns

高速波特率时看了波形边沿还可以, 只是目前的固件位宽不正确, 能不能修正一下