PSoC™ 4 Forum Discussions

Hi All,

I have a problem with the attachment project. Alaways show below error message ,

main.c:328:11: error: variably modified 'bms_ic' at file scope

cell_asic bms_ic[TOTAL_IC];

I have been unable to find a problem, please experts to help me find the problem.

Thanks,

Lin

Hi SIr,

我通过定时器设置中断时间写compare值实现呼吸灯，这些值来自正弦波的数组，256个等级，实现8s一个周期，所以定时16ms。

问题描述：灯光随机会出现闪一下的现象。

问题排查：1.我怀疑是写进去的值与实际的值不一样，就打印了XX_ReadCompare()值，结果与数组的值一致，用示波器看波形，发现灯闪的时候，波形也没有跳变的过程。

2.当PWM的clock从256k改到12M时，这种闪一下的概率会非常低，但是还是会出现。

附件是我测试用的工程，请帮忙分析一下。

谢谢。

BR,

Leo

Hello Experts,

I'm considering an application of many buttons with CapSense - CSD in PSoC 4L. How many sensors can I prepare?

According to the PSoC 4/6 CapSense Design Guide (Table 3-3), 68 and 22 sensors are available for CSD0 and CSD1, respectively. However, according to PSoC Creator Component Datasheet - CapSense (Widget Sensing element(s) in Basic Tab), Button Widgets seem to have a limit of 32 sensors per CSD Component.

Does that mean I can prepare max 55 (32 + 22) sensors in PSoC 4L?

Best Regards

Hello,

We are considering DC/DC(switching) power supply for BLE module(CYBLE-222014-01).

Does the switching frequency of the power supply affect the performance of the BLE module?

If there is a performance impact, which switching frequency should I choose?(500kHz, 1MHz, 4MHz...)

Thanks,

Shimamura

I just wrote a simple program of one LED light blinking at 500 milliseconds delay. I would like to upload this program to the Psoc board, but am unable to upload the program. I try to do this with 2 methods.

1 - Is seen in the image titled "Cntrl + f5". I simply click on the program, but nothing is appearing in the menu.

2 - Is seen in the image "6" through the bootloader. I'm unable to find the .cyacd file in the debug folder of the project nor at the .dep folder.

I hope I could clearly tell you my problem. Please don't hesitate to ask further details. I also showed what programs I have installed.

Hello,

There is the explanation about CapSense_CalibrateAllWidgets function like below.

and CapSense_CalibrateWidget function too.

Calibrates the IDACs for all widgets in the component to the default target (85% of maximum possible raw count) value.

But if we execute CapSense_CSDCalibrateWidget funcion and set to 60% target, do both  CapSense_CalibrateAllWidgets and CapSense_CalibrateWidget functions

calibrate the IDACs to 60%?

        CapSense_CSDCalibrateWidget(

                                    CapSense_BUTTON0_WDGT_ID,

                                    CALIBRATION_TARGET_60_PERCENT

                                    );

Best regards,

Yocchi

Hello.

I don't understand how to calculate ADC result in "millivolt [mV]" using ADC_1_ReadResult_mVolts() function.

I think that calculation is needed for ADC conversion value(digital value) to Voltage.

For example, Voltage = Vadc_in * 1024(10bit resolution) / Vdda.

I could get a value in [mV] with ADC_1_GetResult_mVolts() function.

But I couldn't find any calculation or I think I missed something.

Could anyone explain to me?

Please answer below.
The same question is written in English and Japanese.

・English
Is the Slew rate of SPI (Master) MOSI, CS or CLK GPIO or SIO?

・Japanese(日本語)
SPI(Master)のSlew rateは、GPIO,SIOどちらになりますか？

Regards

Please answer below.
The same question is written in English and Japanese.

・English
Is the internal regulator set to ON by default?

Do I need to configure anything to use the integrated regulator?

・Japanese(日本語)
内蔵レギュレータはデフォルトがＯＮに設定されていますか？

VDDDに5Vを印加する予定です。
内蔵レギュレータを使用する上で何か設定は必要でしょうか？

Regards