PSoC™ 6

Dear Sirs and Madams,

I'm reviewing the datasheet, TRM and application notes to review the PSoC6 hardware.

Which is recommended for handling the VDDUSB terminal when the PSoC 6 USB is not used?

1. Page 38 of PSoC6 MCU : CY8C61x6, CY8C61x7 datasheet

https://www.cypress.com/file/385931/download

2. Page 4 of AN218241

https://www.cypress.com/file/385701/download

The data sheet can be read as recommending applying a voltage of 1.7V to 3.6V, however the application note recommends floating.

Regards,

Hello

I am trying with small steps to operate the DMA on I2S, so I have an array of 40 values (0 through 0x27) to write to the I2S-TX through DMA. Then I read the I2S-SDO line on logic analyzer.

First, to configure the UDB datapath to be 32-bit wide to have 4-words deep FIFO, do it just configure the data_size to "word" ? or do I have to manually configure some register ?

I set up the system as follows:

Data to send:    uint32_t txBuff[40]

DMA: 

I2S:

Tx-only, 24-bits, period 64-bits

DMA:

Result:

In case of I2S set to 16-bits: The output reads 2 consecutive elements from the array at a time, concatenates them and and sends them to the I2S.

In case of I2S set to 24-bits: The output reads 2 consecutive elements from the array at a time, concatenates them and and sends them to the I2S, and skips other some elements in the array:

I expired all the trials and errors and the resources in TRM and datasheets,

Any clue what is wrong with the setup ?

thanks

Hi

I need to implement an additional I2S port on the PSoC-6, my PSoC has only a single I2S module.

I found few resources for UDB I2S, and I have a few questions:

What I am trying to do:

1- I need left and right interleaved (24-bits data, 64-bits word length) --> This makes up 8-bytes (UDB FIFO is only 4-bytes).

2- I need to stream 160-bytes at at time.

3- I can use DMA.

4- UDB FIFO is 4-bytes, interleaved between left and right.

5- UDB FIFO interrupts is for non-empty or overflow.

Confusion:

Given those conditions (interrupt, buffer size, data format):

1- How can I capture the 160-bytes, which interrupt to use ?

2- And, how can I figure out which byte is received (is it left or right and which byte within the 4-bytes it is). 

thanks

GPIO LED on my PCB works well and I can toggle them on/off normally.

I am trying to add a timer that will help me to toggle them when I want without the use of delays.

I am using a CYBLE-416045-02 and a MiniProg4 for programming. Code is written in PSOC Creator 4.4.

The project compiles and programs fine, but LEDs only toggle when interrupts are disabled (ie. When I comment out __enable_irq();).

Please help, thank you.

uint16 uiBlinkTimer = BLINKTIME;
bool pinReadValue;
    
int main(void) {
    
    __enable_irq(); /* Enable global interrupts. */
    
    // Start Timer and interrupt
    ms_timer_Start();
    Cy_SysInt_Init(&timer_isr_cfg, &timer_isr_handler); // bind interrupt to handler
    NVIC_EnableIRQ(timer_isr_cfg.intrSrc); // enable timer interrupt
    
    
    Cy_GPIO_Write(RedLED_0_PORT, RedLED_0_NUM, LEDON);
    Cy_GPIO_Write(GreenLED_0_PORT, GreenLED_0_NUM, LEDON);
    CyDelay(500);
    Cy_GPIO_Write(RedLED_0_PORT, RedLED_0_NUM, LEDOFF);
    Cy_GPIO_Write(GreenLED_0_PORT, GreenLED_0_NUM, LEDOFF);
    CyDelay(500);
    
    pinReadValue = LEDOFF;
    
    for(;;) 
    {
        
        Cy_GPIO_Write(RedLED_0_PORT, RedLED_0_NUM, LEDON);
        Cy_GPIO_Write(GreenLED_0_PORT, GreenLED_0_NUM, LEDON);
        CyDelay(250);
        Cy_GPIO_Write(RedLED_0_PORT, RedLED_0_NUM, LEDOFF);
        Cy_GPIO_Write(GreenLED_0_PORT, GreenLED_0_NUM, LEDOFF);
        CyDelay(250);

        if(!uiBlinkTimer) 
        {
            if(pinReadValue == LEDOFF) 
            {
                Cy_GPIO_Write(RedLED_0_PORT, RedLED_0_NUM, LEDON);
                Cy_GPIO_Write(GreenLED_0_PORT, GreenLED_0_NUM, LEDON);
                pinReadValue = LEDON;
            } 
            else 
            {
                Cy_GPIO_Write(RedLED_0_PORT, RedLED_0_NUM, LEDOFF);
                Cy_GPIO_Write(GreenLED_0_PORT, GreenLED_0_NUM, LEDOFF);  
                pinReadValue = LEDOFF;              
            }
            uiBlinkTimer = BLINKTIME;
        }
        /* Place your application code here. */
    }
}

// Timer used is ms_timer
// 1 interrupt / ms
void timer_isr_handler() {
    
    if(uiBlinkTimer)
        uiBlinkTimer--;
    
    NVIC_ClearPendingIRQ(timer_isr_cfg.intrSrc);
    ms_timer_ClearInterrupt(ms_timer_CNT_NUM);
}