PSoC™ 4 Forum Discussions

Hello, 

can me somebody help with uart - speed?

When I set up the speed of uart to 19200bd, all is ok.

When I set up the speed of uart to 115200, I have a problem with receiving the characters.  When I send characters from PC, uart interrupt detects twice more character.

For example:

Send from PC: HELLO

Receive in processor: H, null,E,null,L,null,L, null, O, null. Between characters is received the character: 0 (dec). I use the interrupt:RX FIFO not empty.

But in 19200bd, processor does not receive the character 0(dec).

The uart actual speed is 115196bd  (The CLK of processor is 48MHz). 

I tried to change Oversampling, CLK of processor, Stop bits, but everything does not work. 

Thank you for help:)

I have been using CYBL10161-56LQXI where currently I am working over the BLE v4.2.
I have a question about the data that we store in CYBLE_EVT_GATTC_HANDLE_VALUE_NTF. 

What I know till now is about CyBle_GattsNotification() that it is a non-blocking function and what it does. 
I have save the data to be sent to the client over, CYBLE_GATTS_HANDLE_VALUE_NTF_T  my_variable; // my declaration
 

and  in some function this is what I use,
 my_variable.value.val           = MyData;
 my_variable.value.actualLen = length;
 my_variable.value.len           = length;
 my_variable.attrHandle         = charAttrHandle;
So, my question is, do we need the memory that we are using to set up the descriptor(my_variable)  to exist after my call returns? As right now I am saving it on the stack, which means at some point I am going to lose it. 

Dharav
 

In single channel mode for the SAR_ADC, ( psoc 4m ), the max value appears to be 2047.  This is a 11 bit value.  It looks like the a/d is still acting like the a/d is running in differential mode, ie -2047 to 2047.  Sometime the ground measurement returns -1, which seems to indicate that a differential mode measurement is returned.

Is there a way to have the A/D return 0 to 4095, which is a 12 bit a/d range.

Hello,

My company was recently assigned a Bluetooth Company ID.  How can I set that ID in the "Manufacturer Specific Data" in the advertisement packet if it does not show up in the pull down list in the component?

Also, is there a call to change the value of the manufacturer specific data?

Maybe there is a way to alter the entire advertisement packet (31 bytes)?

Thanks.

- Chris

Hi i just got home a ble module (CYBLE-012012-10)

I didn´t read the sheets så well before i order it. But my question: It is possible to talk to the ble unit thru uart? I would like to just send some at-commands to get started.

In the project,I use BLE Component on CY8C4247LQI-BL483 and the board runs in deepsleep mode that refer to the application note(AN92584 Designing for Low Power and Estimating Battery Life for BLE Applications),when BLE is not advertising ,the current of the board(4247LQI-BL483) is 2uA(enter into deepsleep mode,advertisement interval is configured to 3s).

but when added SPI(slave mode) commponent and there is no SPI communication on the bus,the current of the board is increased to 300uA.

In the project code :

(1) initializatin:call SPIS_Start()

(2) before and after calling CySysPmDeepSleep():call function SPIS_Sleep() and SPIS_Wakeup() 

so,what do i need to do to reduce the current when run the SPI slave communication?

Thanks.