QuecPython中定义的各种错误代码常量(持续更新中)
| 错误码常量 | 错误码 | 释义 |
|---|---|---|
| QUEC_PY_FAIL | -1 | Generic failure codes |
| QUEC_PY_OK | 0 | Quec_py value indicating success (no error) |
| QUEC_PY_EPERM | 1 | Operation not permitted |
| QUEC_PY_ENOENT | 2 | No such file or directory |
| QUEC_PY_ESRCH | 3 | No such process |
| QUEC_PY_EINTR | 4 | Interrupted system call |
| QUEC_PY_EIO | 5 | I/O error |
| QUEC_PY_ENXIO | 6 | No such device or address |
| QUEC_PY_E2BIG | 7 | Argument list too long |
| QUEC_PY_ENOEXEC | 8 | Exec format error |
| QUEC_PY_EBADF | 9 | Bad file number |
| QUEC_PY_ECHILD | 10 | No child processes |
| QUEC_PY_EAGAIN | 11 | Try again |
| QUEC_PY_ENOMEM | 12 | Out of memory |
| QUEC_PY_EACCES | 13 | Permission denied |
| QUEC_PY_EFAULT | 14 | Bad address |
| QUEC_PY_ENOTBLK | 15 | Block device required |
| QUEC_PY_EBUSY | 16 | Device or resource busy |
| QUEC_PY_EEXIST | 17 | File exists |
| QUEC_PY_EXDEV | 18 | Cross-device link |
| QUEC_PY_ENODEV | 19 | No such device |
| QUEC_PY_ENOTDIR | 20 | Not a directory |
| QUEC_PY_EISDIR | 21 | Is a directory |
| QUEC_PY_EINVAL | 22 | Invalid argument |
| QUEC_PY_ENFILE | 23 | File table overflow |
| QUEC_PY_EMFILE | 24 | Too many open files |
| QUEC_PY_ENOTTY | 25 | Not a typewriter |
| QUEC_PY_ETXTBSY | 26 | Text file busy |
| QUEC_PY_EFBIG | 27 | File too large |
| QUEC_PY_ENOSPC | 28 | No space left on device |
| QUEC_PY_ESPIPE | 29 | Illegal seek |
| QUEC_PY_EROFS | 30 | Read-only file system |
| QUEC_PY_EMLINK | 31 | Too many links |
| QUEC_PY_EPIPE | 32 | Broken pipe |
| QUEC_PY_EDOM | 33 | Math argument out of domain of func |
| QUEC_PY_ERANGE | 34 | Math result not representable |
| QUEC_PY_EDEADLK | 35 | Resource deadlock would occur |
| QUEC_PY_ENAMETOOLONG | 36 | File name too long |
| QUEC_PY_ENOLCK | 37 | No record locks available |
| QUEC_PY_ENOSYS | 38 | Function not implemented |
| QUEC_PY_ENOTEMPTY | 39 | Directory not empty |
| QUEC_PY_ELOOP | 40 | Too many symbolic links encountered |
| QUEC_PY_EWOULDBLOCK | 41 | Operation would block |
| QUEC_PY_ENOMSG | 42 | No message of desired type |
| QUEC_PY_EIDRM | 43 | Identifier removed |
| QUEC_PY_ECHRNG | 44 | Channel number out of range |
| QUEC_PY_EL2NSYNC | 45 | Level 2 not synchronized |
| QUEC_PY_EL3HLT | 46 | Level 3 halted |
| QUEC_PY_EL3RST | 47 | Level 3 reset |
| QUEC_PY_ELNRNG | 48 | Link number out of range |
| QUEC_PY_EUNATCH | 49 | Protocol driver not attached |
| QUEC_PY_ENOCSI | 50 | No CSI structure available |
| QUEC_PY_EL2HLT | 51 | Level 2 halted |
| QUEC_PY_EBADE | 52 | Invalid exchange |
| QUEC_PY_EBADR | 53 | Invalid request descriptor |
| QUEC_PY_EXFULL | 54 | Exchange full |
| QUEC_PY_ENOANO | 55 | No anode |
| QUEC_PY_EBADRQC | 56 | Invalid request code |
| QUEC_PY_EBADSLT | 57 | Invalid slot |
| QUEC_PY_EDEADLOCK | 58 | Deadlock |
| QUEC_PY_EBFONT | 59 | Bad font file format |
| QUEC_PY_ENOSTR | 60 | Device not a stream |
| QUEC_PY_ENODATA | 61 | No data available |
| QUEC_PY_ETIME | 62 | Timer expired |
| QUEC_PY_ENOSR | 63 | Out of streams resources |
| QUEC_PY_ENONET | 64 | Machine is not on the network |
| QUEC_PY_ENOPKG | 65 | Package not installed |
| QUEC_PY_EREMOTE | 66 | Object is remote |
| QUEC_PY_ENOLINK | 67 | Link has been severed |
| QUEC_PY_EADV | 68 | Advertise error |
| QUEC_PY_ESRMNT | 69 | Srmount error |
| QUEC_PY_ECOMM | 70 | Communication error on send |
| QUEC_PY_EPROTO | 71 | Protocol error |
| QUEC_PY_EMULTIHOP | 72 | Multihop attempted |
| QUEC_PY_EDOTDOT | 73 | RFS specific error |
| QUEC_PY_EBADMSG | 74 | Not a data message |
| QUEC_PY_EOVERFLOW | 75 | Value too large for defined data type |
| QUEC_PY_ENOTUNIQ | 76 | Name not unique on network |
| QUEC_PY_EBADFD | 77 | File descriptor in bad state |
| QUEC_PY_EREMCHG | 78 | Remote address changed |
| QUEC_PY_ELIBACC | 79 | Can not access a needed shared library |
| QUEC_PY_ELIBBAD | 80 | Accessing a corrupted shared library |
| QUEC_PY_ELIBSCN | 81 | .lib section in a.out corrupted |
| QUEC_PY_ELIBMAX | 82 | Attempting to link in too many shared libraries |
| QUEC_PY_ELIBEXEC | 83 | Cannot exec a shared library directly |
| QUEC_PY_EILSEQ | 84 | Illegal byte sequence |
| QUEC_PY_ERESTART | 85 | Interrupted system call should be restarted |
| QUEC_PY_ESTRPIPE | 86 | Streams pipe error |
| QUEC_PY_EUSERS | 87 | Too many users |
| QUEC_PY_ENOTSOCK | 88 | Socket operation on non-socket |
| QUEC_PY_EDESTADDRREQ | 89 | Destination address required |
| QUEC_PY_EMSGSIZE | 90 | Message too long |
| QUEC_PY_EPROTOTYPE | 91 | Protocol wrong type for socket |
| QUEC_PY_ENOPROTOOPT | 92 | Protocol not available |
| QUEC_PY_EPROTONOSUPPORT | 93 | Protocol not supported |
| QUEC_PY_ESOCKTNOSUPPORT | 94 | Socket type not supported |
| QUEC_PY_EOPNOTSUPP | 95 | Operation not supported on transport endpoint |
| QUEC_PY_EAFNOSUPPORT | 97 | Address family not supported by protocol |
| QUEC_PY_EADDRINUSE | 98 | Address already in use |
| QUEC_PY_ECONNABORTED | 103 | Software caused connection abort |
| QUEC_PY_ECONNRESET | 104 | Connection reset by peer |
| QUEC_PY_ENOBUFS | 105 | No buffer space available |
| QUEC_PY_EISCONN | 106 | Transport endpoint is already connected |
| QUEC_PY_ENOTCONN | 107 | Transport endpoint is not connected |
| QUEC_PY_ETIMEDOUT | 110 | Connection timed out |
| QUEC_PY_ECONNREFUSED | 111 | Connection refused |
| QUEC_PY_EHOSTUNREACH | 113 | No route to host |
| QUEC_PY_EALREADY | 114 | Operation already in progress |
| QUEC_PY_EINPROGRESS | 115 | Operation now in progress |
import uerrno.errno_to_str()
# 暂未实现
errInfo = uerrno.errno_to_str()
print(errInfo)固件版本默认是业务模式，即出现底层异常错误时会自动重启，防止模块程序停止导致无法使用。当我们处于调试期时需要暴露并定位问题原因，此时需要设置三条AT指令（AT口执行）：
- at+qdumpcfg=0,0
- at+qdumpcfg=1,0
- at+log=19,1
依次执行上述三条AT指令即可进入调试模式，此时若出现底层异常错误则会进入DUMP模式，出现DUMP端口，此时您可以有两种选择：
方法一：提供固件版本、测试步骤及测试代码，前往QuecPython官网提交问题工单 方法二：使用Tera term窗口调试工具（使用方法：百度即可）抓取Dumplog，同时提供固件版本、测试步骤及测试代码，前往QuecPython官网提交问题工单，节省复现问题时间。
需要注意此指令重启后仍然生效，如需退出调试模式，有以下三种方法。 1、用AT指令直接关闭 2、AT+RSTSET恢复出厂设置 3、更改固件烧录时擦除nvm
对应寄存器：NINGBO_PWRUP_LOG_REG 各bit的含义：
| 0x01即bit0 | onkey硬件唤醒 |
|---|---|
| 0x02即bit1 | exton1硬件唤醒 |
| 0x04即bit2 | exton2硬件唤醒 |
| 0x08即bit3 | bat硬件唤醒 |
| 0x10即bit4 | rtc_alarm唤醒 |
| 0x20即bit5 | fault唤醒 |
| 0x40即bit6 | vbus_detect唤醒 |
目前使用的有：exton1硬件唤醒(powerkey硬件接的是exton1)，fault唤醒，vbus_detect唤醒。
对应寄存器：NINGBO_POWERDOWN_LOG_REG 各bit的含义：
| 0x01即bit0 | over temperature关机 |
|---|---|
| 0x02即bit1 | PMIC VINLDO电压低于2.9V关机 |
| 0x04即bit2 | SW_PDOWN软件调用power_down接口关机 |
| 0x08即bit3 | 无 |
| 0x10即bit4 | PMIC watch dog关机 |
| 0x20即bit5 | long press of ONKEY关机 |
| 0x40即bit6 | VINLDO电压过高关机 |
| 0x80即bit7 | VRTC LOW关机 |
目前long press of ONKEY关机不使用。
目前只关注power_down_reason寄存器，该寄存器不需要使用。
1.长按powerkey关机 检测到长按动作，最终调用PMIC_SW_PDOWN
2.硬件RESET 调用CPU RESET引脚，PMIC不掉电， PWRUP_LOG_REG和POWERDOWN_LOG_REG寄存器也不会更新
3.软件RESET a.若是调用PMIC_SW_RESET先使能FAULT_WAKEUP，再调SW_PDOWN，然后会FAULT唤醒重启。 b.若是异常重启类似硬件RESET，只是CPU RESET，PMIC不掉电。
4.按 powerkey开机 为exton1硬件唤醒
5.插USB开机 为vbus_detect唤醒
每次开机读取过power_down_reason之后，会将其标志清掉，power_up_reason不支持清除。
1.powerkey 需满足power_up_reason==0x02，且power_down_reason!=0
2.硬件、异常RESET 由于PMIC不掉电， PWRUP_LOG_REG寄存器不会更新，POWERDOWN_LOG_REG寄存器被清掉，则需满足power_up_reason==0x02，且power_down_reason==0。或满足power_up_reason==0x40， 且power_down_reason==0。
3.软件RESET 如果是插着USB则需满足power_up_reason==0x60，且power_down_reason==0x04。
4.Vbus 需满足power_up_reason==0x40，且power_down_reason!=0x00。
5.其他开机原因在前面这些原因之后按bit含义获取。
关机原因如代码中按照bit含义获取即可。
目前boot侧和kernel侧都会提供开关机原因接口，由于获取开关机原因之后需要将POWERDOWN_LOG_REG寄存器中的关机原因标志清除，所以在boot侧调用过该接口的话，在kernel侧就不能调了，否则获取的值会有异常。现在boot侧的接口默认没调用。