PM0237 datasheet(78/88 Pages) STMICROELECTRONICS

78 / 88 page

Design an application using BlueNRG, BlueNRG-MS ACI APIs

PM0237

78/88

DocID027104 Rev 2

#endif

/* Enable the acceleration characteristic client descriptor configuration

for notification */

ret = aci_gatt_write_charac_descriptor (conn_handle,

handle_value /* handle for acceleration

client descriptor

configuration */

0x02,

/* attribute value

length */

0x0001, /*

attribute value:

1 for notification */

);if (ret != BLE_STATUS_SUCCESS) PRINTF("Failure.\n")}

Once the characteristics notification have been enabled from the GAP Central, the GAP

peripheral can notify a new value for the free fall and acceleration characteristics as follows:

tBleStatus ret;

uint8_t val = 0x01;

uint16_t service_handle_value;

uint16_t charac_handle_value;

#ifdef BLUENRG_MS

service_handle_value = 0x000C;

charac_handle_value = 0x000D;

#else /*

service_handle_value

= 0x0010;

charac_handle_value = 0x0011;

#endif

/* GAP peripheral notifies free fall characteristic to GAP central*/

ret = aci_gatt_update_char_value (service_handle_value , /* acceleration

service handle */

charac_handle_value, /* free fall characteristic

handle */

0, /* characteristic

value offset */

0x01,/* characteristic value

length*/

&val, /* characteristic value */ );

ret = (accServHandle, freeFallCharHandle, 0, 1, &val);

if (ret != BLE_STATUS_SUCCESS) PRINTF("Failure.\n")}

tBleStatus ret;

PM0237 数据表(PDF) 78 Page - STMicroelectronics

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