STM32H7系列看隔壁和论坛例程都用400M,为啥不跑满480M,是跑久了容易坏吗?最近搞了个STM32H743VI板 一直用480M,昨天折腾了下频率今天JLINK 都连不上了,STlink 内核识别点一下能识别,再点一下又不识别了,不知道是不是网上说的频率配置问题弄超频了,有啥办法能解决吗当初买的100多大洋啊jlink COMMADER 提示如下
****** Error: Could not find core in Coresight setup
Found SW-DP with ID 0x6BA02477
Scanning AP map to find all available APs
AP[3]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x84770001)
AP[1]: AHB-AP (IDR: 0x84770001)
AP[2]: APB-AP (IDR: 0x54770002)
Iterating through AP map to find AHB-AP to use
AP[0]: Skipped. Invalid implementer code read from CPUIDVal[31:24] = 0x00
AP[1]: Skipped. No ROM table (AHB-AP ROM base: 0x00000002)
AP[2]: Skipped. Not an AHB-AP
Found SW-DP with ID 0x6BA02477
Scanning AP map to find all available APs
AP[3]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x84770001)
AP[1]: AHB-AP (IDR: 0x84770001)
AP[2]: APB-AP (IDR: 0x54770002)
Iterating through AP map to find AHB-AP to use
AP[0]: Skipped. Invalid implementer code read from CPUIDVal[31:24] = 0x00
AP[1]: Skipped. No ROM table (AHB-AP ROM base: 0x00000002)
AP[2]: Skipped. Not an AHB-AP
Cannot connect to target.
用jlink 摁着复位键尝试连接 提示
- VTarget = 3.300V
- Executing init sequence ...
- Initialized successfully
- Target interface speed: 4000 kHz (Fixed)
- ERROR: Failed to halt CPU for clock frequency detection!
- ERROR: Failed to measure CPU clock frequency
- ERROR: Failed to connect.
Could not determine CPU clock frequency.
Erasing chip ...
- Connecting ...
- ERROR: Failed to halt CPU for clock frequency detection!
- ERROR: Failed to measure CPU clock frequency
- ERROR: Failed to connect.
Could not determine CPU clock frequency.
- ERROR: Could not erase chip, not connected