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17 February 2012 07:02 PM

FigBug Newbie

Total Posts: 21

Joined 2011-11-08

Hi.

I'm trying to get heart rate working with an ANTC782M4IB as the slave. The code was working on the PC using a North Pole Wasp WiFi/ANT Bridge. Now I am trying to port it to my micro.

I am following "4.1.2 Receiver Channel Code Example" in ANT_Device)Profile_Heart_Rate_monitor.pdf.

When I do ANT_Open_Channel the ANT module responds with success.

Then it reports 0x6F 0x00 which is Startup Message / POWER_ON _RESET.

Any idea what could be causing my module to reset? I am using it with the asynchronous interface at 57,500.

17 February 2012 07:20 PM #1

Johnny Ringo Sr. Member

Total Posts: 523

Joined 2012-11-15

Here is my message log:

ant tx: A4 09 ...  // set network key
ant rx: A4 03 40 00 46 00 A1      // set network key ok
ant tx: A4 03 42 00 00 00 E5      // assign channel
ant rx: A4 03 40 00 42 00 A5      // assign channel ok
ant tx: A4 05 51 00 00 00 78 00 88     // set channel id
ant rx: A4 03 40 00 51 00 B6      // set channel id ok
ant tx: A4 03 43 00 86 1F 7D      // set channel period
ant rx: A4 03 40 00 43 00 A4      // set channel period ok
ant tx: A4 02 45 00 39 DA       // set channel freq
ant rx: A4 03 40 00 45 00 A2      // set channel freq ok
ant tx: A4 01 4B 00 EE        // open channel
ant rx: A4 03 40 00 4B 00 FF      // open channel ok
ant rx: A4 01 6F 00 CA        // startup message / power on reset ???? 

20 February 2012 04:24 PM #2

Johnny Ringo Sr. Member

Total Posts: 523

Joined 2012-11-15

Solved it, turns out the chip wasn't getting enough power.

25 January 2013 08:01 AM #3

Alex Hu Newbie

Total Posts: 1

Joined 2012-12-12

I met the exact same problem when I using MSP430 driving CC2570. Please share a bit more details on what's the real problem of power supply. I double checked my board, I didn't find any problem with power.

25 January 2013 08:44 AM #4

FigBug Newbie

Total Posts: 21

Joined 2011-11-08

I didn't have the power pin connected. :-$

The chip was getting back powered via the other pins, which was enough until the radio turned on.

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ANT_OpenChannel causes device reset