TXPOWER CC2530 CC2591

Gaelle INSA

Other Parts Discussed in Thread: CC2591, CC2530

Hi,

I am using Zstack-CC2530-2.3.1 and a module with a CC2530 and a CC2591. I compile with the option HAL_PA_LNA. I want to be able of chose between 2 power 10dBm and 20dBm.

For setting the power I modify the ZMacInit() call in ZMain.c but it did not work.

// Initialize the MAC

ZMacInit();

uint8 value = 0xE5;

MAC_MlmeSetReq(MAC_PHY_TRANSMIT_POWER, &value);

I succeed to send the power I want when I change the last parameter in the definition of macRadioDefsTxPowerCC2591 in mac_radio_defs.c

#if defined HAL_PA_LNA || defined MAC_RUNTIME_CC2591

const uint8 CODE macRadioDefsTxPwrCC2591[] =

{

19, /* tramsmit power level of the first entry */

(uint8)(int8)0, /* transmit power level of the last entry */

/* 19 dBm */ 0xF5, /* characterized as 19.36 dBm in datasheet */

/* 18 dBm */ 0xD5, /* characterized as 18.45 dBm in datasheet */

/* 2 dBm */ 0x25, /* characterized as 2.71 dBm in datasheet */

/* 1 dBm */ 0x15, /* characterized as 0.70 dBm in datasheet*/

/* 0 dBm */ 0xE5, //0x05, /* characterized as -0.8 dBm in datasheet */

};

#endif

I can keep this modification for my application but I’m asking if there is a simpler method to do it ??

I hope someone have an idea,

Best regards, Gaelle

over 15 years ago

0 Torbjorn Sorby over 15 years ago

TI__Expert 6315 points

Hi Gaelle,

When you call MAC_MlmeSetReq, it will handle the conversion from the requested transmit power to the register setting. It expects the requested power in dBm and will perform conversion according to the table you refer to.

From the API:

txPower - the minus dBm for power but as a postive integer (or if configured for it, txPower is the raw register value). If PA/LNA is installed then txPower becomes positive dBm.

Given that you had to modify the table to make it work, I assume yours is not configured to accept raw register settings.

Best regards,

Torbjørn

0 Gaelle INSA over 15 years ago

Prodigy 40 points

Thank you Torbjorn for your answer. Is there an other way to choose the power than using MAC_MlmeSetReq(MAC_PHY_TRANSMIT_POWER, &value) ? Have you an example of a table which accept raw register settings in the stack ?

Best regards,

Gaelle

0 Torbjorn Sorby over 15 years ago in reply to Gaelle INSA

TI__Expert 6315 points

Hi Gaelle,

If you have a source release of the stack you can build it with the flag: HAL_MAC_USE_REGISTER_POWER_VALUES, this will make the MAC_MlmeSetReq() accept raw register settings. See lines 320:334 of mac_radio_defs.h.

Best regards,

Torbjørn

0 The Seven over 11 years ago in reply to Torbjorn Sorby

Guru 11440 points

how about the Zstack 1.21？ what is the default value of the MAX TX Power

0 YiKai Chen over 11 years ago in reply to The Seven

Guru 735695 points

The default max TX power with CC2591 is 19dbm.

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