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Last post
Mon, 2019-09-09 15:02
#1
Roie DAHAN
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Last seen:9 months 2 weeks ago
加入:2018-11-19 16:32
GATT read data path

Hi,

I'm tring to hook "read" for GATT custom service (using ble_app_peripheral example)

it seems as read doesn't stop in breakpoint located in these functions.

  • gattc_read_req_ind_handler
  • gattc_att_info_req_ind_handler
  • custs1_att_info_rsp_handler

Please advise how to hook "read" data path

Thanks

Device:
DA14585
Mon, 2019-09-09 16:47
PM_Dialog
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Last seen:2 days 11 hours ago
Staff
加入:2018-02-08 11:03
Hi Roie DAHAN,

Hi Roie DAHAN,

In the SDK6.0.10, the custs1 profile doesn't send a message towards the application level in order to indicate that the characteristic is read by a central device. However, you can apply the RI option in the database definition in the user_custs1_def.c file. For example, please use the below code snippet in order to activate this feature for the custom characteristics that you would like to get an indication when read:

// ADC Value 1 Characteristic Value [SVC1_IDX_ADC_VAL_1_VAL] = {SVC1_ADC_VAL_1_UUID_128, ATT_UUID_128_LEN, PERM(RD, ENABLE) | PERM(NTF, ENABLE), PERM(RI, ENABLE)|DEF_SVC1_ADC_VAL_1_CHAR_LEN, 0, NULL},

By doing that you will get the gattc_read_req_ind_handler() function to execute as soon as a central tries to read a ADC characteristic.

Thanks, PM_Dialog