ZIGBEE SDK ZB_GET_OUT_BUF_DELAYED2 call failed

[xjhu]

HI,all

I am a newman for zigbee on NRF52840 with S140 softdevice,

I have two board, one is ZC and another is ZED.

On ZC board, I use ZB_GET_OUT_BUF_DELAYED2 to send data to ZED continuely,about 100 times this method return failed and can not alloc a buf.

after about 3 seconds ZB_GET_OUT_BUF_DELAYED2 can be called successfully.

My question is:

1,when ZB_GET_OUT_BUF_DELAYED2 call failed, is there any method to relase or remalloc buffer?

2,how to reduce the time(about 3 seconds) to get new buf successfully?

3,why need wait for some seconds to get new buf?

wish your help,thanks.

[xjhu]

HI,Andreas,

thanks your reply and help.

my code to send data is below:

#define ZB_ZCL_HF_DP_SEND_CMD(buffer, \
addr, \
dst_addr_mode, \
dst_ep, \
ep, \
prfl_id, \
def_resp, \
cmd_id, \
cb, \
cmd_data, \
cmd_size) \
{ \
zb_uint8_t* ptr = ZB_ZCL_START_PACKET_REQ(buffer) \
ZB_ZCL_CONSTRUCT_SPECIFIC_COMMAND_REQ_FRAME_CONTROL(ptr, def_resp) \
ZB_ZCL_CONSTRUCT_COMMAND_HEADER_REQ(ptr, ZB_ZCL_GET_SEQ_NUM(), cmd_id); \
ZB_ZCL_PACKET_PUT_DATA_N(ptr, cmd_data, cmd_size); \
ZB_ZCL_FINISH_PACKET(buffer, ptr) \
ZB_ZCL_SEND_COMMAND_SHORT(buffer, \
addr, \
dst_addr_mode, \
dst_ep, \
ep, \
prfl_id, \
ZB_ZCL_CLUSTER_ID_HF_DP_ATTR, \
cb); \
}

#define ZB_ZCL_HF_DP_SEND_SWITCH_REQ( \
buffer, addr, dst_addr_mode, dst_ep, ep, prfl_id, dis_default_resp, cb, cmd_data, cmd_size) \
ZB_ZCL_HF_DP_SEND_CMD( \
buffer, \
addr, \
dst_addr_mode, \
dst_ep, \
ep, \
prfl_id, \
dis_default_resp, \
ZB_ZCL_CMD_HF_DP_SWITCH_ID, \
cb, \
cmd_data, \
cmd_size)

SwitchData data = {0, 2};
ZB_ZCL_HF_DP_SEND_SWITCH_REQ(p_buf,
addr,
ZB_APS_ADDR_MODE_16_ENDP_PRESENT,
ep,
HFDP_GATEWAY_ENDPOINT,
ZB_AF_HA_PROFILE_ID,
ZB_ZCL_DISABLE_DEFAULT_RESPONSE,
NULL,
&data,
sizeof(data));