What does it do when a reset is executed during Flash writing process (especially Bonding)?

For example, I confirmed the following phenomenon. (FW version is v1.2.29)

1. Set and store the Baud rate of UART to 9600bps (STU,B=2580,A=0,C=0,F=0,D=8,P=0,S=1 and /SCFG)

2. Reset by XRES just after /SFCG command (Actually, execute both reset and /SFCG almost simultaneously.)

3. After reset of step2, a baud rate is back to 115200. why?

Best regards,

Yasui @ TED

Hi All,

We are using EVAL_3KW_2LLC_P7_47 with XMC 4400 . We need to implement CV and CC. Requesting to provide reference contorl flow along with code.

Hi,

I am working on a project which uses FX3 to implement video application. Basically the device works fine. But when it is connected to USB 2.0 port and run bulk-in (video data) and control-in (register read) simultaneously, both bulk-in and control-in will hang. If bulk-in and control-in are not run simultaneously, or they are run in USB 3.0, everything is fine.

My firmware SDK is ver 1.3.4

The problem is the same (or silimar) to those discussed in the following links:

1) a strange delay in USB2.0 

2) [CX3] uvc bulk-in transfer failed by control-out request on usb2.0  

3) FX3 highspeed control endpoint issue

Also I checked the following discussions:

1) CYUSB3014 - How to speed up operate control endpoint IN for USB highspeed 

2) EZ-USB® FX3™ Issues With Simultaneous Bulk-IN and Control-IN Transfers In USB 2.0 – KBA92475 

Refering to the solutions in above links, I made changes in FX3 firmware code by the two methods as follows:

1.  Use CyU3PUsbSetEpSuspDisableMask() to disable DMA channel suspend during EP0 transfer

or

2. Write another funcition CyU3PDmaChannelSendData() to replace CyU3PUsbSendEP0Data() for control-in data sending.

Both method is helpful on this issue. The bulk-in and control-in are not hang mostly.  But sometimes the data on control-in are corrupted. And sometimes the data transfer (both bulk-in and control-in) still failed (but not frequenctly and can be recoveried by end point reset).

The SDK ver 1.3.4 implements DMA suspend when control-in data needs to be sent out, to workaround data corruption issue in USB 2.0. But based on my issues (and other ones' issues in above links) it seems the DMA suspend operation is not stable. The above two method roll-backs the DMA suspend, but this does'nt resolve the data corruption issue.

I did the following test:

1. Remove control-in code, so there is only bulk-in transfer.

2. Added some code (the code is similar to those in ver 1.3.4 SDK CyU3PUsbSendEP0Data() function) which suspends bulk-in DMA, and then resume DMA after some delays (from some ms to some seconds). I can also see the bulk-in transfer may hang. So it looks the DMA suspend operation is not safe for us to call.

Here are the questions:

1. Why the DMA suspend/resume operation makes the transfer hang?

2. Is there any way to workaround the data corruption and hang issue for simultaneous bulk-in and control-in transfer in USB 2.0? That is, is there anyway to get stable bulk-in/control-in transfer for USB 2.0?

Thanks!

Operating environment:
Win10
ModusToolBox Version: 2.4.0
Eclipse Build ID: 2460
Evk: CY8CKIT-062-WIFI-BT
mtb-hal-cat1 release-v2.0.1

When I use cyhal_pwm_set_duty_cycle to set the duty equal to 0% or 100%, it seems the output is not correct!
result = cyhal_pwm_set_duty_cycle(&pwm_obj, 0.0f, 10000);  ==> Then PWM output is 100%(keep high level output)
result = cyhal_pwm_set_duty_cycle(&pwm_obj, 100.0f, 10000); ==> Then PWM output is 99.98%

I wonder does there is any bugs in the function library cyhal_pwm_set_duty_cycle() & cyhal_pwm_set_period_and_compare().

Below is my sample code:

#include "cy_pdl.h"
#include "cyhal.h"
#include "cybsp.h"

float fCompareValue = 0.0f;

int main(void)
{
    cy_rslt_t result;
    cyhal_pwm_t pwm_obj;

    /* Initialize the device and board peripherals */
    result = cybsp_init() ;
    if (result != CY_RSLT_SUCCESS)
    {
        CY_ASSERT(0);
    }

    __enable_irq();
    cyhal_gpio_init(CYBSP_LED9, CYHAL_GPIO_DIR_OUTPUT, CYHAL_GPIO_DRIVE_STRONG, CYBSP_LED_STATE_OFF);

	// Initialize PWM on the supplied pin and assign a new clock
    result = cyhal_pwm_init(&pwm_obj, CYBSP_LED8, NULL);
	// Set a duty cycle of 100% and frequency of 10KHz
    result = cyhal_pwm_set_duty_cycle(&pwm_obj, fCompareValue, 10000);
	// Start the PWM output
    result = cyhal_pwm_start(&pwm_obj);

    for (;;)
    {
		if(fCompareValue <= 100.0f)
		{
			result = cyhal_pwm_set_duty_cycle(&pwm_obj, fCompareValue, 10000);
			cyhal_gpio_toggle(CYBSP_LED9);
			Cy_SysLib_Delay(250);
			fCompareValue += 10.0f;
		}
    }
}

Actually output waveform:

Hi, I am interfacing a qvga sensor to my FX3 board. configured it according to AN75779 reference doc. I traced the data on wireshark and as per the calculation, it shows me the buffer data more than the 1 frame size. What could be the reason?
where I should look into it?

please suggest~

Regards.

Hi, I am developing CYBT-343026 with modus2.4. But I have meet some problems that I can search the eval board"spp test" on my SPP app but I can't connect to the eval board. I have tried three different apps on two smart phones but the result is still the same. I am using sample code RFCOMM_Serial_Port and the following are my log and air log.

Thanks

Hi,

I just import the project in "EZ USB Suite" tool and try to build the project in Debug and Release mode.

But the linker script "fx3.ld" is not present in Debug/ Release Folder.

Error :: Cannot open the linker script c:\..\debug\fx3.ld: invalid argument 

Environment  variable  set : 

FX3_LIB_PATH    =  "${workspace_loc:/${ProjName}/api}"

How to resolve it??

error

 environment variable set

 path and symbole