it is the same of the rssi value, since they are compared in order to detect other transmissions. By the way, the default value depends on your filesystem version, and you can modify it by going to HPLCC2420ControlC, for example (in version 1.1.7 the default value is -128)
On 7/3/07, Aleksandr N. Sadkov <[EMAIL PROTECTED]> wrote:
Unfortunately, I don't know exactly, there is no information about range in Datasheet. It's 8 bit value, and I guess it's same range as RSSI value. Regards, Aleksandr. wbr, Sadkov Aleksandr [EMAIL PROTECTED] www.sumkino.com www.wl.unn.ru ------------------------------ *From:* JeongKwanhee [mailto:[EMAIL PROTECTED] *Sent:* Tuesday, July 03, 2007 1:38 PM *To:* 'Aleksandr N. Sadkov' *Cc:* tinyos-help@Millennium.Berkeley.EDU *Subject:* RE: [Tinyos-help] CCA value Hello I forgot it. I have one more question. What is range of CCA? I don't know the smallest reset value for CCA. *From:* Aleksandr N. Sadkov [mailto:[EMAIL PROTECTED] *Sent:* Tuesday, July 03, 2007 6:18 PM *To:* 'JeongKwanhee' *Cc:* tinyos-help@Millennium.Berkeley.EDU *Subject:* RE: [Tinyos-help] CCA value Hello, You forgot about -45 offset (is the same as for RSSI). The reset value for CCA is about -77 dBm. Regards, Aleksandr. wbr, Sadkov Aleksandr [EMAIL PROTECTED] www.sumkino.com www.wl.unn.ru ------------------------------ *From:* [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] *On Behalf Of *JeongKwanhee *Sent:* Tuesday, July 03, 2007 10:15 AM *To:* 'roberto pagliari' *Cc:* tinyos-help@millennium.berkeley.edu *Subject:* RE: [Tinyos-help] CCA value Hello! I'm using the micaz to Tinyos 1.1.15 version. In cc2420data sheet, the default value of CCA_THR is -35. *From:* roberto pagliari [mailto:[EMAIL PROTECTED] *Sent:* Monday, July 02, 2007 11:56 PM *To:* JeongKwanhee *Cc:* tinyos-help@millennium.berkeley.edu *Subject:* Re: [Tinyos-help] CCA value which kind of platform and distribution are u using? In tinyos 1.0.7 the default value for micaz platform is -128. You should change it going to HPLCC2420Control.init() On 7/1/07, *JeongKwanhee* <[EMAIL PROTECTED]> wrote: Hello all! I knew CCA default value is -32. And I found CCA_MODE that decided whether data received or not. So, if I want to decide CCA Threshold, what I have to do? I think that I just change default value(E0). Is right??? Plz, give me send many email whether it is right or not. Thank you. _______________________________________________ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help _______________________________________________ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
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