cc2642R 的AESECB加解密的问题，这个与cc2640r2f里面的AESECB加解密算出来的是一样吗？如果KEY相同。

CC26X2上有AES的硬件模块

Enhanced Security
With additional hardware security accelerators for AES-128/256, SHA-256, and ECC, CC26x2 saves five times the processing time and current consumption for implementing security algorithms. This is critical to enable strong network security.

设备跟APP应用必须使用单独的蓝牙通讯加解密，只能使用硬件的AES，不能使用软件的AESECB吗？

软件安全性能是基于协议栈的，硬件安全性能比较全面

Security Core
The security core of the CC13x2 and CC26x2 device platform features an Advanced Encryption Standard
(AES) module with 256-bit key support, local key storage and DMA capability. It also includes a Hash
engine (SHA-2) and a Public Key Acceleration (PKA) engine.
Features of the AES engine are as follows:
• ECB, CBC, CBC-MAC, CTR, CCM, and GCM modes of operation
• 118-Mbps throughput
• Secure key storage memory
• Low latency
• SHA-224, SHA-256, SHA-384, and SHA-512
• Hardware accelerators for elliptic curve calculations

具体内容请参考：www.ti.com/.../swcu185d.pdf

AESECB_init();
handle = AESECB_open(0, NULL);
if (handle == NULL)
{
ScUARTPrintf("communicate_init AESCBC_open fail! \r\n");
return;
}
CryptoKeyPlaintext_initKey(&cryptoKey1, keyingMaterial, sizeof(keyingMaterial));
AESECB_Operation operation;
AESECB_Operation_init(&operation);
为什么 AESECB_open失败，返回为NULL?这个代码是参考例程的，有问题吗？