Other Parts Discussed in Thread: UNIFLASH, CC2541, CC2640
我们这边烧录环境为: 轩微脱机烧录器 + 芯片烧录座子 ,近期开始烧录 发现 有大概千分之五~百分之一 的烧录NG现象;
在Uniflash 上面分析烧录NG 芯片:
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我们这边烧录环境为: 轩微脱机烧录器 + 芯片烧录座子 ,近期开始烧录 发现 有大概千分之五~百分之一 的烧录NG现象;
在Uniflash 上面分析烧录NG 芯片:
看下关于这个错误的说明,可能时连接线有问题或者接触不良等
This error means the JTAG debugger is unable to access the core or device on the board.
Technically speaking, this happens if the JTAG debugger fails to access an ICEPick register (exceptions are MSP430, Stellaris and some C2000 Wireless connectivity and Digital Power MCUs, which do not have an ICEPICK). If the ICEPick driver reports this error immediately upon connect, it's likely a hard fail with the JTAG connection itself (loose cables or connections, etc.). However, if the error happens later in the debug session the reasons are different (perhaps the reliability of the JTAG connection due to noise, or improper firmware that causes the device to power cycle or reset, etc.).
This issue can also manifest itself if the Debug Probe senses the scan path is broken. Some troubleshooting tips can be found at the section Invalid data read back below.
In certain scenarios the loaded code may cause issues with the normal connection and/or execution. In this case, check the troubleshooting tips in the error Invalid device ID below.
Additional tips to properly debug and correct this error are also in the section Troubleshooting the connect phase above.
Error connecting to the target: (Error -2131 @ 0x0) Unable to access device register. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK).
因为DCDC上的电容C10是22uF
另外请教一下 ,这个是什么原因会导致烧录以后芯片挂掉了 ?
现在还不好判定,先测一下VDDS和GND之间的电压
然后重新上电监控下VDDR DCDC_SW、DCOUPL的电压波形,将波形图传上来
无论c2000,cc26xx,cc13xx,tm4c 系列flash 芯片是汽车,工业的,在德州仪器cc254x的flash芯片面前不值一提,cc254x出现故障可以重新烧录代码!c2000,c26,c13,tm4c就不行了。
上边是我做的蓝牙无人机,德州仪器的芯片,芯片处理速度慢,可惜通信距离短。另外听人说德州仪器的aoa蓝牙是世界上最早的 ,几年后依旧就是个演示玩具!美国另外一家的aoa虽然设计的迟,不过比德州仪器的玩具高级不少!