XMC™ Forum Discussions

Hello,

I have programmed the example of WEBSERVER001_Example2 in XMC5400 Hexagon Application Kit but when you switch very fast the LED from the web page, the server stops working and you need to press reset button to restart it.

Could anyone give me any advice to manage the requests and not saturate the server?

Best regards,
MagicPhoton Show Less

Hello,

I'm designing a web server with the Hexagon Application Kit and DHCP protocol. In the second example of Infineon web server is possible switch a LED from the internet page, and I would like know how I can write a string from the microcontroller on the index.html to visualize this on the internet page. I know that is possible do this with cgi handlers but I don't know exactly how to do it.

Could anyone show me please how to do it or let me an example?

Thanks in advance. Show Less

ARM's Cortex-M4 Devices Generic User Guide (sec 2.2.5) specifies an optional bit-banding feature.

It is not mentioned in the Infineon XMC4500 reference manual. Does the XMC4500 support bit banding? Show Less

You are wondering how many PWM signals are available at XMC4500.

Here we have a calculation:
CCU8 has 4 slices with one timebase each, each timebase has 2 compares, ie. 8 PWM capable pins, each PWM pin can have a complementary output with deadtime, we have 2 CCU8, ie. 16 PWM capable pins on CCU8x.
CCU4 has 4 slices with one timebase each, each timebase has 1 compare, ie. 4 PWM capable pins, we have 4 CCU4, ie. 16 PWM capable pins on CCU4x.
There are 8 PWM capable pins on our Touch Sense Module one one bit timebase.

Hence we have theoretically 32 capable PWM pins (16bit) + 8pins (8bit).

On XMC4500, we have all CCU8x/CCU4x PWM pins on the 144pin packages.

Please note, additionally there is one System Timer and one RTC timer left for SW timebase.

PWM pinout capability at XMC4500 QFP144
(in total 32)
CCU80_OUT00/CCU80_OUT01 (with deadtime)
CCU80_OUT02/CCU80_OUT03
CCU80_OUT10/CCU80_OUT11
CCU80_OUT12/CCU80_OUT13
CCU80_OUT20/CCU80_OUT21
CCU80_OUT22/CCU80_OUT23
CCU80_OUT30/CCU80_OUT31
CCU80_OUT33/CCU80_OUT32

CCU81_OUT00/CCU81_OUT01
CCU81_OUT02/CCU81_OUT03
CCU81_OUT10/CCU81_OUT11
CCU81_OUT12/CCU81_OUT13
CCU81_OUT20/CCU81_OUT21
CCU81_OUT22/CCU81_OUT23
CCU81_OUT30/CCU81_OUT31
CCU81_OUT32/CCU81_OUT33

CCU40_OUT0
CCU40_OUT1
CCU40_OUT2
CCU40_OUT3

CCU41_OUT0
CCU41_OUT1
CCU41_OUT2
CCU41_OUT3

CCU42_OUT0
CCU42_OUT1
CCU42_OUT2
CCU42_OUT3

CCU43OUT0
CCU43OUT1
CCU43OUT2
CCU43OUT3 Show Less

I´m currently evaluating the XMC4000 family for one of my projects. Some questions came up:

- do samples received from ADC can be directly sent to external or internal memory with DMA (i.e without involving core)?

- do you know if XMC4000 could drive a 4-phase switch reluctance motor? At least to estimate if that could be possible.

- could you provide information about Boot Loader? How is it implemented?

- do have a slide explaining the Memory Protection Unit (to show configurability to give different access to several piece of code, such as no read, read only…)?

Thanks for your help Show Less

All Infineon has released thus far is the imprecise "Comprehensive set of timers", and "includes new timer modules"
but no mention of the actual Timer precision and range. Surprising omission really.

NXP have 32 bit timers and 32 bit prescalers even on their M0 parts, and TI have 32/64 bit timers on their new M4, so I am guessing that Infineon have at least 32 bit Timers and prescalers with 32 bit captures, on a 2012 part, but it wold be nice to confirm that ?

Does anyone have more hard details on XMC Timers ? Show Less

Does anyone know if the timers in the Infineon are 32 bit ( or even 32/64bit, like in the TI M4 ?)

All I can find is "includes new timer modules" - which is too cryptic. - but it does hint that the timers may be
better than the XC166, and closer to the TriCore ?

I hope Infineon have not made the mistake of putting 16 bit timers, into a 32 bit Microcontroller ?

For a part due to sample soon, and hit production before June, data is surprisingly hard to find. Show Less