Set Transmit Power Level over HCI in PSoC 6 MCU BLE – KBA226871

Author GeonaP26 Version Translation Japanese PSoC 6 MCU BLEHCI KBA226871 Community Translated JA QuestionHow do you set BLE transmit power level over Host Controller Interface HCI mode in PSoC 6 MCU BLEAnswerYou can send the vendor HCI command HCIVENDORSETTXPWR used to set TX power over HCI interface with appropriate parameters to configure TX power level Since this is a vendor command it is not related to the BT power control procedureCommandOpcodeParam LengthParamsRecommended Param ValuesHCIVENDORSETTXPWR0xFDA5u OGFOCF0x3F0x1A54 OctetsChannel IDPower LevelConnection Handle LSBConnection Handle MSB ParamSizeValue ExampleChannel ID 1 octet0x00Power Level1 octet20 16 12 6 0 4 use 2s complement for negative numbersConnection Handle2 octets0x0000The channel ID refers to the channel group ID It is 0x00 for ADV channel and 0x01 for connection channelsConnection handle is applicable if the channel ID is connection channel type For advertisement and Direct Test Mode DTM connection handle is ignored

Set Transmit Power Level over HCI in PSoC 6 MCU BL...

Author: GeonaP_26 Version: **

Translation - Japanese: PSoC 6 MCU BLEでHCIから送信電力レベルを設定する- KBA226871 - Community Translated (JA)

Question:

How do you set BLE transmit power level over Host Controller Interface (HCI) mode in PSoC® 6 MCU BLE?

Answer:

You can send the vendor HCI command HCI_VENDOR_SET_TX_PWR, used to set TX power, over HCI interface with appropriate parameters to configure TX power level. Since this is a vendor command, it is not related to the BT power control procedure.

Command

Opcode

Param Length

Params

Recommended Param Values

HCI_VENDOR_SET_TX_PWR

0xFDA5u

OGF	OCF
0x3F	0x1A5

4 Octets

Channel ID,

Power Level,

Connection Handle LSB,

Connection Handle MSB

Param	Size	Value Example
Channel ID	1 octet	0x00
Power Level	1 octet	-20, -16, -12, -6, 0, 4 (use 2’s complement for negative numbers)
Connection Handle	2 octets	0x0000

The channel ID refers to the channel group ID. It is 0x00 for ADV channel and 0x01 for connection channels.
Connection handle is applicable if the channel ID is connection channel type. For advertisement and Direct Test Mode (DTM), connection handle is ignored.

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