PSoC™ 4 Forum Discussions

I'm looking into programming my boards in a production environment. I've looked into OpenOCD and am working with those folks on expanding the current coverage to include more devices. As a backup plan I read the app note about using another PSoC as a programmer in what's called HSSP. 

I'm designing a board that will have a PSoC 5LP on board connected to a FM24V10 FRAM part. The SWD pins are connected to a set of pogo pins which will probe my PRoC BLE module board (CYBLE-222005-00). Those pins are also brought out to a header which will connect to the board running OpenOCD.

If I just use the PSoC 5LP and HSSP programming I won't have issues (at least in theory). But if I want to use the board running OpenOCD it will see both the 5LP and the ProC BLE so how do you address different devices? I know that under the hood when you program by SWD it probes the chip using the DAP interface and reads the Silicon ID. That is then compared to the Silicon ID inside of the hex file you're using to program. What I haven't been able to find is what happens when there's more than 1 device on the SWD "bus"?

Thanks in advance for any helpful advice and information!

Hello,

So, my question is really simple, i need to connect an analog pin to an ouput analog pin. On the PSoC 4200 BLE CY8C4247LQ*-BL483 it work, but on the PSoC 4000 CY8C4014LQI-412, it doesn't work and i don't know why 😕

So do you have an idea?

My goal is to use an Amux later.

Thanks you 🙂

HI,

i would like to edit the Cysmart Android App and especially the Navigation Drawer, so i can choose from there a BLE Service, which i've created. 

I've edited so far the NavigationDrawer with my own structure. On my navigation there is a parent-item which has three child-items. Also i've created a ServiceFragment which works great so far. My goal is now to implement it in that way, that when i choose e.g. the first child-item on the NavigationDrawer, that it opens the ServiceFragment that i've created.

My created service is a Fragment and not an Activity. Therefore i have to open the Fragment from a Fragment (NavigationDrawer). I've tried some solutions with the FragmentManager, but i can't find a solution for this, as the App always crashes. 

What does work is, when i try opening the existing AboutFragment with this (Code is in NavigationDrawerFragment):

private void selectChildView(String childText) {

if (childText.equalsIgnoreCase(getResources(). getString(R.string.navigation_drawer_testmenu))) {

AboutFragment aboutFragment = new AboutFragment();

displayView(aboutFragment);

mDrawerLayout.closeDrawer(mFragmentContainerView);

}}

But when i try this with my own ServiceFragment that i've created, it crashes. Even when i'm connected to my BLE Usb Dongle. 

So does anyone have any solution ideas? How and what do i have to implement to achieve my goal?

I really would appreciate any help. Thank you very much in advance!

Best regards 
   

I'm using PSoC BLE Pioneer,

Reading ADC documentation of PSoC I've found this:

float32 (uint32 chan, int16 adcCounts)

Description:

Converts the ADC output to Volts as a floating point number. For example, if the ADC measured 0.534 volts, the return value would be 0.534. The calculation of voltage depends on the value of the voltage reference. When the Vref is based on Vdda, the value used for Vdda is set for the project in the System tab of the DWR.

Parameters:
chan: ADC channel number.
adcCounts: Result from the ADC conversion

Return Value:
Result in Volts

Side Effects:
None

My question, why I have to pass ADC channel number?  The channel is already implicit on Resultfrom the ADC conversion.

My actual reading is:

        Ref_16 = ADC_GetResult16(1u);
        Ref = ADC_CountsTo_Volts(1u, Ref_16);

so, ADC channel number seem redundant.

Thanks for help,

Fabrizio

I am controlling an LED's brightness using TCPWM line out to drive the cathode with the LEDs anode connected to VCC. I am also running BLE stack.

When the PRoC CYBLE-022001-00 first powers up, the LED is turned on for a while until the PWM is initialized to generate a high output on it's 'line' port... which I connected to an output pin.

How can I set the PWM components 'line' output to be high at initial powerup of the module?

How do I see the ARMs program memory opcode to single step starting from it's reset vector address at powerup?

It seems there is startup code executing which is esoteric and non-alterable to the programmer which makes me question exactly how much control is exposed to the designer in these GUI based IDEs. This lack of startup control anomaly is a classic example.

I am very new to Microcontroller and especially Cypress programming and have therefore been looking at the code examples. I am currently trying to understand the function of the SW_Tx_UART Component.

First of all I would like to know, how it is possible to change the clock the component is using? And how do  I know which it is currently using?

For documentation sake I would now like to calculate the expected baud rate error. The following formula is given in the SW_Tx_UART- Datasheet:

Divider = (int) (CPU_CLK+(BaudRate/2))/BaudRate
%err = (BaudRate - CPU_CLK/ Divider)*100% + CPU_CLK_Accuracy

But which values do I need to enter here? Is the CPU-CLK the same as the SYSCLK? I also don't know in which units the values have to be given since I don't seem to be able to fully understand the relationship between clock frequency and baud rate.

For example if the used clock is runnig at 48000000Hz (48MHz) and a I set a Baudrate of 115200 Bd that would give me a divider of 417.166 (ignoring the units). The result seems a bit high I think...

Any help in understanding the relations of clock and baudrate is much appreciated.

Thanks

i have been using psoc-1. there is refhigh and reflow available for RTD excitation.

is that any facility in psoc-4 that fulfith same??

because i want two save my both IDAC in some other purpose.