Solved

Posted on August 07, 2013 at 14:59Can you please send me this document, as the link on your website is broken:   Schematic pack for SPC560B64A100S evaluation board. #eval-board

Posted on July 30, 2013 at 16:09Hello I try to find out the difference between Reader Application M24LR04E and Reader Application M24LR16E when it comes to data reading. As far as I understood both components (M24LR04E and M24LR16E) operate with identic commands. In my case I only want to read data from block 0x000 to 0x00F. On both components exist the requested memory range. Further I do not use any password protection. When I read data from M24LR16E with Reader Application M24LR04E all what I get back is just ''no Tag answer''. Why only M24LR16E works with Reader Application M24LR16E and not with Reader Application M24LR04E? Where is the difference?

Posted on April 19, 2013 at 16:10Do you have reference of coil antennas which we can used with the M24LRxxx? #antenna #ant3 #inductor

Posted on July 09, 2013 at 10:51Hello, I have a question about your M24LR products. I know the product has been designed as a passive tag, For RFID communication the power come from the reader and when we want to communicate via I2C we have to power the tag via 2 power pins (VCC and VSS). My question is :  if I power the tag myself (via VCC and VSS) and then  try to communicate via RFID. Is it going to change the read range or not ? What energy source's the tag is going to use ? I didn't see anything about that in the data-sheet. Do you have any idea if the range will be improved ? Thank you #read-range #m24lr-range-improve-power-tag #range-antenna-m24lr

Posted on July 11, 2013 at 17:35Hello, I have a question. There is a programming USB hardware interface (JTAG)  for evaluation tool (SPC56XXMB+ SPC56ELADPT144S) suggested from ST? #spc56xxmb #spc56eladpt144s

Posted on July 10, 2013 at 20:28Hello, I am working with a local customer on a new CR95HF design and was hoping your team could provide feedback on some of the questions they submitted today related to schematic capture:1. The RF output of CR95HF (TX1, TX2) is first connected to an EMC filter (L1, L3, C1, C4), do you have recommended component values for this EMC filter? (Note that their product will be first launched in US.) 2. Within the CR95HF demo board schematic (please see attached), it is not clear to them how the two resistors (circled in picture) are mounted. Could you provide some guidance here? 3. We noticed that CR95HF supports two VPS_TX range: 2.7V � 3.3V, 4.5V � 5.5V. What, if any are the performance tradeoffs between these two operating conditions? For example, if they drive a higher VPS_TX, will the NFC range be larger compared to a lower VPS_TX? Thanks in advance for your help. #schematic-capture-cr95hf

Posted on July 09, 2013 at 14:15 Hello, i have a doubt. The Daughter/adapter board SPC56ELADPT144S is for SPC56xxEL family. In SPC56ELADPT144S datasheet is written:  device supported SPC56EL60L5. But when i search in WEB page for SPC56xxEL family i don't find SPC56EL60L5. WEB page: http://www.st.com/web/en/catalog/sense_power/FM2098/SC963/SS1534 in MCU list there are SPC56EL60L3 or SPC56EL70L5. SPC56ELADPT144S support a MCU that it don't exists?  i think that's impossible! There is an error? However, error apart,  are MCU SPC56EL70L5 compatible with SPC56ELADPT144S? Someone informed? #spc56el70xx #spc56el70l5

Posted on June 14, 2013 at 14:30Hi,I am designing a product that uses CR95HF transceiver IC and custom shape flexible antenna.According to ISO/IEC 15693 standard a vicinity coupling device shall generate a field of at least Hmin (150mA/m) and not exceeding Hmax (5A/m) at manufacturer specified positions (operating volume). It is also defined that a Vicinity Integrated Circuit(s) Card shall continue to operate as intended after exposure to a magnetic field of 12 A/m at 13,56 MHz.In my mind this specifies the operating conditions my design has to meet. I have been able to build a working system that can read and write tags but I do not have concrete evidence if my system works in boundaries explained by ISO/IEC 15693.I have studied basics of RFID-technology and read documents like AN3394. In AN3394 equation (III.1) gives us estimate of generated magnetic field. However in that equation there is one varieble that is not explained and that is the rms current in the ant

Posted on May 24, 2013 at 13:48Is any solution to reset CPU writing sequence to register? #spc56-reset #spc560b40x

Posted on March 01, 2013 at 14:39Hi, I'm looking for the schematics for the CR95HF board which comes with the M24LR-Discovery system. The download doesn't work, where can I find it ?   Moritz #plug-cr95hf #dual #m24lr-discovery #schematic #rf-tranceiver-schematic

Posted on April 08, 2013 at 19:14Ive been emailing the support and asking around for like a month now; posting my question here maybe someone finally gets back to me!//-->Hello! i was wondering if anyone could get back to me today on the question i asked earlier!It's about ANT2 and ANT7 antenna coils, but i cant find them on the new website. What's the capacitance for each of these antennas? Im using ANT 1 and ANT2 antennas as for my reference antenna and in order to calculate the Tuning capacitance of my own antenna, i need to know the capacitance of either of these antennas.[...]Id REALLY appreciate if someone could PLEASE get back to us very soon!Thanks again and sorry to bother so much!//--Lala- #ant2 #ant7 #antenna #eeprom #coil

Posted on March 26, 2013 at 19:28Is it possible to download the firmware for the RF transceiver board from the ST website? I can see the code to go on the M24LR board, but not the code for the USB connected RF transceiver. I'm considering modifying the code running this board, but I would be much happier if I had a working binary to reflash back to the board if I make a mistake - full source code would be even better, if possible.Thanks, #m24lr-discovery #cr95hf-firmware

Posted on March 14, 2013 at 08:40Hello everyone, I am interested in the maximal junction temperature of the M95256-WMN3TP/AB E²PROM. The maximum ambient operating temperature of  a grade 3 device is 125°C, so the junction temerature has to be higher. There is no mentioning of a maximum junction temperature in the data sheet. I also looking for junction to ambient thermal resistance of the M95256-W in the SO-8 package. Best regards, Thomas

Posted on February 15, 2013 at 21:58Hi, i'm selecting the right micro to drive a 3phase BLDC motor. I see some product of pictus line has a dedicated periferal for motor control but at sale time i don't undestand what is the different from pictus and bolero line to implement a FOC control Thanks #3phase-bldc

Posted on March 05, 2013 at 08:53Where can I find the SW for the M24LR discovery kit? if possible, a SW without the need to have administration rigth on my PC? #sw #m24lr-discovery #m24lr-discovery

Posted on February 15, 2013 at 21:47Hi, i downloaded SPC5 studio from ST web. look like a nice enviroment but i don't undestand what showld i do to purchase an activation code for compiler once trial period is expired. If i start my development with such enviroment i need to know how go ahead without stop and go. Second i'm not sure if Pictus line is supported by SPC5 studio configurato and compiler Thanks #spc56

Posted on February 06, 2013 at 22:37Hello, I have looked at the SPC5 studio preview and have a few comments/questions: 1.  When will a compiler be available? 2.  The SPC5 Studio seems to integrate the Chibios RTOS.  There is no documentation with the studio for the OS.  When will this be available?  The OS implementation does not match the Chibio documentation available on Chibios.org as the original OS was intended for z4 and z3 PPC cores.  What is changed between the original OS and the one used in the studio? 3.  Is there a possiblity to not use the OS but still use the drivers and configuration part of the studio? Best Regards, Kurt

Posted on September 02, 2012 at 00:47I was trying to use malloc in a project  which has been ported from an other platform. I get the message that... _sbrk  ... is undefined. This is used by _sbrk_r which again is used by malloc. I found no solution herein but looked at the following at http://embdev.net/topic/129753   I am not very familiar to this so a little help would do. I can create the function if needed, no prob. but I find it likely that this has already been solved somehow for stm32fxx devices and i rather like the idea to have something dedicated instead for me trying to implement this myself. FYI : The heap size is set to 16KB Breg Vidar #malloc-_sbrk #dynamic-allocation---just-say-no

Posted on September 01, 2012 at 01:00The original post was too long to process during our migration. Please click on the attachment to read the original post.

Posted on July 09, 2007 at 09:24C Lib problem

Hello superhero MCU enthusiasts,I'm playing with the STM32N6570-DK and have created a simple project with an FSBL that initializes the MCU and boots the Appl. Once booted, the Appl flashes a "Hello World" LED.Both can be loaded to external flash using the STM32CubeProgrammer.Now, I'm trying to map external PSRAM (XSPI1 -> 0x90000000) inside the FSBL, but it fails.To do that, I change a line in a file in the FSBL, stm32_extmem_conf.h, line 35 of (PSRAM disabled):#define EXTMEM_DRIVER_PSRAM 0Now I try to enable and map the external PSRAM by setting the definition to 1:#define EXTMEM_DRIVER_PSRAM 1However, it doesn't succeed.When debugging I see we land into a HardFault.The FSBL generates a HardFault when executing SAL_XSPI_EnableMapMode, because the function HAL_XSPI_MemoryMapped fails.I can't find the cause.Anyone?I posted a project here with a short Readme.md:https://github.com/AngryCarrot61/STM32N6570-DK_004Note: to see FSBL and Appl working one has to set EXTMEM_DRIVER_PSRAM