DAVE™ Forum Discussions

Hi, I`m new in DAVE and XMC, just was working with Atmel Studio and AVR before. Could you please help me to figure out why my MultiCAN and Interrupt doesnt work ? I set it with typical settings but nothing happened when I`m trying to recieve a CAN ID 568 data to the node0. If I transmitt a data to node1, the Transmitt function says CAN is BUSY (in debugger mode). At the end it will be the CAN filter for my car navigation.

Thank you !

There's a bug in the DAVE-generated EEPROM emulation driver for the XMC4800, working with DAVE v4.5 and the E_EEPROM_XMC4 App v4.0.20.

In Dave/Generated/E_EEPROM_XMC4/e_eeprom_xmc4.c, Line 309, I get

/* Read a set of bytes from RAM Buffer */
void E_EEPROM_XMC4_ReadArray(const uint16_t offset_address, uint8_t *const data, const uint16_t length)
{
  uint16_t i;
  uint8_t  *address_ptr;
  XMC_ASSERT("E_EEPROM_XMC4_ReadArray: Wrong offset address", (offset_address  < E_EEPROM_XMC4_DATA_BLOCK_SIZE))
  XMC_ASSERT("E_EEPROM_XMC4_ReadArray: Wrong length",
                                                    ((offset_address + length)  < E_EEPROM_XMC4_DATA_BLOCK_SIZE))

The second assert will fail If I try to read the full section, calling this function with offset_address = 0 and length = E_EEPROM_XMC4_DATA_BLOCK_SIZE.

This is exactly what the EtherCAT Slave Stack code from  ECAT_SSC App v4.0.30 does (Dave/Generated/ECAT_SSC/ecat_ssc.c:122) when running any of the EtherCAT examples from the downloads portal.

Proposed fix: Subtract 1 from length in the assert to correctly check the address of the last byte read from the EEPROM emulation.

Hello.

How can i solve the problem with the SPI-MASTER App with a XMC4700 microcontroller.

I use the SPI_MASTER App and select "Enable advanved pin configuration" to set up the port pin driver strange on USIC2 Channel 0.

I want to use: Strong Driver Sharp Edge on MOSI and SCLK, but i can only select:

- Dont care
- Weak DRiver
- Medium Driver
- Strong Driver Soft Edge
- Strong Driver Slow Edge

If i want to select: Strong Driver Shart Edge, Dave4 shows a error:
DAVE is not able to grant your last hardware resources request.

That's not possible, because its only a available setting of a port pin, NOT a NEW hardware resource!

Look for example at xmc4_gpio.h:

#define XMC_GPIO_CHECK_OUTPUT_STRENGTH(strength) ((strength == XMC_GPIO_OUTPUT_STRENGTH_STRONG_SHARP_EDGE) ||\
(strength == XMC_GPIO_OUTPUT_STRENGTH_STRONG_MEDIUM_EDGE) ||\
(strength == XMC_GPIO_OUTPUT_STRENGTH_STRONG_SOFT_EDGE) ||\
(strength == XMC_GPIO_OUTPUT_STRENGTH_STRONG_SLOW_EDGE) ||\
(strength == XMC_GPIO_OUTPUT_STRENGTH_MEDIUM) ||\
(strength == XMC_GPIO_OUTPUT_STRENGTH_WEAK))

How can is solve this bug?

I can edit the created spi_master_conf.c and write
     .output_strength = XMC_GPIO_OUTPUT_STRENGTH_STRONG_SHARP_EDGE
to the pin config, but with the next: DAVE->Generat Code , i lost my settings.

Please help.

Hello,
I am using the ADC and UART peripherals of XMC4400 Board. I am trying to read the sensor values using the ADC. And, next, I wish to check the results displayed by the ADC. For this, I have used an example code of UART given by the software. This UART code transmits the data from USIC0 channel0  to USIC0 Channel 1. I used this code because it was stated that this code would help me observe the variables values in the debugger.

However, when I used this code and ran the debugger, the variables section of the IFX Debugger showed no variables and only a grey screen. In the expressions section, although I have added the global variables in the "expression" section, the value of the expressions is not updating. Can anyone please help me print the ADC values in Dave 3.0.
Below, I have attached the code I have written for reading the sensor values and displaying the ADC result.