If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
// Maximum size in bytes of the BLE HCI PDU. Valid range: 27 to 255
// The maximum ATT_MTU is MAX_PDU_SIZE - 4.
#ifndef MAX_PDU_SIZE
#if defined(BLE_V42_FEATURES) && (BLE_V42_FEATURES & SECURE_CONNS_CFG)
#define MAX_PDU_SIZE 255
#else
#define MAX_PDU_SIZE 27
#endif //(BLE_V42_FEATURES & SECURE_CONNS_CFG)
#endif
// Maximum size in bytes of the BLE HCI PDU. Valid range: 27 to 255
// The maximum ATT_MTU is MAX_PDU_SIZE - 4.
#ifndef MAX_PDU_SIZE
//#if defined(BLE_V42_FEATURES) && (BLE_V42_FEATURES & SECURE_CONNS_CFG)
// #define MAX_PDU_SIZE 69
//#else
#define MAX_PDU_SIZE 255
//#endif //(BLE_V42_FEATURES & SECURE_CONNS_CFG)
#endif
我是这样修改的
