MCP doesnt recieve Sensor data

RE: MCP doesnt recieve Sensor data

Inspectron — Thu, 07 May 2015 14:26:50 GMT

Now it works!

RE: MCP doesnt recieve Sensor data

Petter Myhre — Wed, 06 May 2015 14:19:41 GMT

I don't know, you need to include the code where it is used.

RE: MCP doesnt recieve Sensor data

Petter Myhre — Wed, 06 May 2015 12:22:45 GMT

This is not an answer. Please add it as a new question. It is also difficult to understand what you mean.

RE: MCP doesnt recieve Sensor data

Inspectron — Wed, 06 May 2015 11:01:44 GMT

I will never get into temp_write_handler. Why not?

RE: MCP doesnt recieve Sensor data

Petter Myhre — Wed, 06 May 2015 10:27:49 GMT

So you get a value of 0x04, not 0x00? Are you getting into temp_write_handler? Please put a breakpoint in it to see if you hit it.

RE: MCP doesnt recieve Sensor data

Inspectron — Wed, 06 May 2015 07:55:31 GMT

I edited my post. You will see that I also tried to get it work with sd_ble_gatts_value_set();

RE: MCP doesnt recieve Sensor data

Inspectron — Wed, 06 May 2015 07:20:53 GMT

I did like you suggested. But i still wont recieve the value for the temperature. The temperature is a float. Is it different to send an integer than a float?

RE: MCP doesnt recieve Sensor data

John — Tue, 05 May 2015 13:15:20 GMT

Why don't you change the function declaration to this: uint32_t ble_fridge_send_temp(ble_fridge_t * p_fridge, uint8_t temp_value)note the lack of a pointer on the temp_value parameter. Then change the assignment of the temp_value in the function to this: hvx_params.p_data = &temp_value;? If sd_ble_gatts_hvx depends on the pointer to the value being persistent you may have to assign it to a static variable and assign a pointer to that instead.

RE: MCP doesnt recieve Sensor data

Inspectron — Tue, 05 May 2015 06:25:52 GMT

How I have to fix this? I changed ble_fridge_send_temp(&m_fridge,temperature); to ble_fridge_send_temp(&m_fridge,&temperature); But I will get another error: type "float *" is incompatible with parameter of type "uint8_t"

RE: MCP doesnt recieve Sensor data

Petter Myhre — Mon, 04 May 2015 14:55:17 GMT

I'm not sure why you are using sd_ble_gatts_hvx(), it is used for notifications. If you want to set an characteristic value you can use sd_ble_gatts_value_set(), and then you can read it. If the characteristic value doesn't require authorization the application will not be notificed when it gets a read request, please see this MSC.

If the characteristic value requires authorization the application will be notified, please see this MSC.

RE: MCP doesnt recieve Sensor data

John — Mon, 04 May 2015 14:12:34 GMT

I could be missing something, but ble_fridge_send_temp is declared as uint32_t ble_fridge_send_temp(ble_fridge_t * p_fridge, uint8_t *temp_value) so temp_value is a pointer to a uint8_t. However you call it like this: err_code = ble_fridge_send_temp(&m_fridge,temperature); temperature is a uint8_t without pointer.

RE: MCP doesnt recieve Sensor data

Inspectron — Mon, 04 May 2015 09:59:51 GMT

I edited now the question. The length of data isnt necessary, so I removed it. Bit I dont understand what you mean with 2).

RE: MCP doesnt recieve Sensor data

kevinlk.li — Mon, 04 May 2015 07:03:46 GMT

When i get the sensor's data, how can i deliver the data throuht NRF51? Thanks.and how to get sensor's data is very easy for me, if you need this code , pls send email to me : kevinlk.li@arrowasia.com . thanks.

RE: MCP doesnt recieve Sensor data

John — Thu, 30 Apr 2015 12:52:31 GMT

Well, there are at least two issues:

Your declaration of ble_fridge_send_temp accepts 3 parameters. However you only call it with 2. I don't believe this even compiles.
Your declaration of ble_fridge_send_temp wants a pointer to the temperature, but you are not passing it the address of temperature you are passing the variable itself.

RE: MCP doesnt recieve Sensor data

Inspectron — Thu, 30 Apr 2015 11:45:39 GMT

I try to read the value by clicking on read in MCP. I will check the errors...

RE: MCP doesnt recieve Sensor data

Petter Myhre — Thu, 30 Apr 2015 11:31:11 GMT

Are you trying to read(clicking read in MCP) the temperature value or are you trying to notify(sd_ble_gatts_hvx()) MCP with the temperature value? Have you tried to use the debugger to see if you get into the correct functions, and that you don't get any errors? (To check the error code, remember to set Optimizations to Level 0) Please edit your question with the additional information.