开发板串口输出信息： couldn't read CPU state

[fangdb]

Warn : Resetting JTAG TAP state and reconnectiong to debug IF.
Info : adv debug unit is configured with option ADBG_USE_HISPEED
Warn : …attempt 3 of 5
Warn : CRC ERROR! Computed 0x00000000, read CRC 0xffffffff
Warn : CRC ERROR! Computed 0x00000000, read CRC 0xffffffff
Warn : CRC ERROR! Computed 0x00000000, read CRC 0xffffffff
Error: Burst read failed
Warn : Debug IF CPU control reg read failure.
Warn : Resetting JTAG TAP state and reconnectiong to debug IF.
Info : adv debug unit is configured with option ADBG_USE_HISPEED
Warn : …attempt 4 of 5
Warn : CRC ERROR! Computed 0x00000000, read CRC 0xffffffff
Warn : CRC ERROR! Computed 0x00000000, read CRC 0xffffffff
Warn : CRC ERROR! Computed 0x00000000, read CRC 0xffffffff
Error: Burst read failed
Warn : Debug IF CPU control reg read failure.
Warn : Resetting JTAG TAP state and reconnectiong to debug IF.
Info : adv debug unit is configured with option ADBG_USE_HISPEED
Warn : …attempt 5 of 5
Error: Could not re-establish communication with target
Error: Error while calling rv32m1_is_cpu_running
Polling target rv32m1.cpu failed, trying to reexamine
Warn : CRC ERROR! Computed 0x00000000, read CRC 0xffffffff
Warn : CRC ERROR! Computed 0x00000000, read CRC 0xffffffff
Warn : CRC ERROR! Computed 0x00000000, read CRC 0xffffffff
Error: Burst read failed
Error: Couldn’t read the CPU state
Examination failed, GDB will be halted. Polling again in 6300ms

 

是 OPENOCD  驱动问题还是板子 问题呢 ？

大家不要申请了板子就 放在那里睡觉了 ，否则就是毫无意义。

作为社区来说没有进步，作为 nxp方来说，文档写的语焉不详，也没有人提意见，失去了进步动力

整个生态前进步伐很慢

[fangdb]

说明一下：    看过文档，仔细看了一下文档，原来RV32M1芯片默认从RISC-V核启动，所以使用的指令：

 

 

按照这份链接  step by step

https://open-isa.cn/community/topic/%E7%BB%87%E5%A5%B3%E6%98%9F%E5%BC%80%E5%8F%91%E7%89%88%E5%90%AF%E5%8A%A8%E6%A8%A1%E5%BC%8F%E4%BF%AE%E6%94%B9-%E4%BB%8Earm-m4%E6%A0%B8%E5%90%AF%E5%8A%A8/

[fangdb]

自己找到原因。发现了 jlink 连接不好。。。

[作者]

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