CC1310: How can I use the Freq of 718-800MHz in HSM(high speed mode, 4MHz datarate)

Logan Xu

Part Number: CC1310

Reference the example of "rfPacketErrorRate_CC1310_LAUNCHXL_nortos_ccs", my CC1310 project can communication by the Freq of 868 or 915MHz in HSM(high speed mode, 4MHz datarate).

Now I want to know how to use cc1310 communication by the Freq of 718-800MHz in HSM(high speed mode, 4MHz datarate).Tks!

over 7 years ago

0 TER over 7 years ago

TI__Guru**** 317180 points

It's not possible to do HSM (4Mbps) on CC1310 for frequencies below the 868 MHz band due to a physical limitation in the chip.

0 Logan Xu over 7 years ago in reply to TER

Intellectual 270 points

If I want use the Freq of 718-800MHz, what is the highest datarate?

0 TER over 7 years ago in reply to Logan Xu

TI__Guru**** 317180 points

You can try the 1.5 Mbps settings given here: e2e.ti.com/.../2363574

0 Logan Xu over 7 years ago in reply to TER

Intellectual 270 points

I just test the code in your given link, 868M&915M with 1.5Mbps datarate is ok. But when I set the freq to 750MHz, I cannot find anything in spectrum analyzer.
I did the change that add 750MHz settings in config.c flie as shown below.

FrequencyTableEntry config_frequencyTable_sub1[] =
{
{ "868.0 ", 0x0364, 0x0000, 0x0 },
{ "915.0 ", 0x0393, 0x0000, 0x0 },
{ "750.0 ", 0x02EE, 0x0000, 0x0 },
{ "", 0xFFFF, 0, 0 }, // Freq of 0xFFFF indicates the end of the table
};

TKS!

0 TER over 7 years ago in reply to Logan Xu

TI__Guru**** 317180 points

I haven't tested this code myself but if you want to use 750 MHz you also has to set the LO divider to 6. (.loDivider = 0x06, the current value is 5)

0 Logan Xu over 7 years ago in reply to TER

Intellectual 270 points

You are right. it works!
Thanks！

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CC1310: How can I use the Freq of 718-800MHz in HSM(high speed mode, 4MHz datarate)