Legacy microcontrollers Forum Discussions

Edit: I have resolved the issue. I had to go to to "Project -> Manage -> Select Software Packs..." and enable ARM_Compiler. After that, I had to go to "Run-Time Environment" and set "Compiler->I/O->STDOUT" to ITM.

Hi,

I am trying to get UART communication working using the PDL version 2.1.0.

I have attached a simple program. The program is a slightly modified version of the one provided in the official example for using the PDL library on an S6E2GM device. I will attach that program as well. I have taken care to include and add all files that were used in the example project.

When I download the program, the output pin P1B should get initialized to HIGH, and I should continuously be getting the message "Hello\n" on my serial connection. Instead, nothing happens.

If I run the debugger and press Run, the program pauses at a BKPT instruction as shown below. I would then have to press Run 2 more times for the program to run and keep running without any further pauses. Then I connect a serial terminal (Termite) and I continuously receive the text "Hello" in it, as expected. Also, it seems that the breakpoints happen before the program enters the main function.

0x00001CDC BEAB      BKPT          0xAB

If I remove printf and replace it with fputc('a', NULL) provided by the PDL, I get the behavior that is expected from such modified program.

What could be causing this?

main.c:

#include "pdl_header.h"

int main(void)
{   
    Uart_Io_Init();
    Gpio1pin_InitOut(GPIO1PIN_P1B, Gpio1pin_InitVal(1u));
    
    printf("Hello\n");
    while(1) {}
}

 main.c from the official example:

#include "pdl_header.h"

int main(void)
{   
    Uart_Io_Init();/* Initializatio of the UART unit and GPIO used in the communication */
  
    printf("Welcome to use Cypress PDL 2.1!\n");
    
    while(1)
    {
         /* Data is normally sent and received */        
    }
}

I want the IBIS model of MB9BF116RPMC-G-F4E1.
Because It changed the design of the DAC circuit and want to analyze the transmission line.

Thanks,
Tetsuo

Hello.
I have three questions about the power supply sequence of the S6E2H.

1. The datasheet only mentions "VCC -> AVCC -> AVRH" as the power-on sequence.
    Does this mean that at the moment VCC exceeds VDH (reset release voltage), AVCC should be at a voltage below VCC?
    Or does it mean that AVCC must not exceed the voltage of VCC during the entire rising slope of the power supply?

2. When the reset signal is controlled externally, is it acceptable to turn on VCC only, then release the reset, and then turn on AVCC and AVRH?
    (VCC on->Reset release->AVCC on->AVRH on)

3. Is it possible to cause physical damage to the chip when performing AD conversion without power supplied to AVCC/AVRH?
    (I am aware that AD conversion cannot be performed normally. Please let me know if the chip can be destroyed.)

Regards,
Shimamura

Please recommend a Cypress product that can replace the PIC16F18346-E/GZ among Microchip products.

Automotive grade

Product with competitive price
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smallest package