Re: Consistency of DCO parameters across multiple samples of a given par

Started by "Fed...@yahoo.com [msp430]" in MSP43019 hours ago

DCO is not accurate indeed. That's why TI programs DCO values during manufacturing. Some kind of calibration is inevitable.

DCO is not accurate indeed. That's why TI programs DCO values during manufacturing. Some kind of calibration is inevitable.


Consistency of DCO parameters across multiple samples of a given part number?

Started by "Dav...@yahoo.com [msp430]" in MSP43022 hours ago 1 reply

I am working on a project that uses MSP430G2452IPW14 (14 pin TSSOP package.) At initialization, I set MCLK and SMCLK sourced from DCO and set...

I am working on a project that uses MSP430G2452IPW14 (14 pin TSSOP package.) At initialization, I set MCLK and SMCLK sourced from DCO and set DCO to my chosen clock frequency (I did not rely on Info flash segment D calibration parameters, as those didn't yield the frequency I require.) I was surprised to find upon building my second prototype of the project that the DCO frequency, using the ...


Serial EEPROM or Serial Flash?

Started by pozz in comp.arch.embedded2 days ago 35 replies

I need to save some data on a non-volatile memory. They are some parameters that the user could change infrequently, for example 10 times per...

I need to save some data on a non-volatile memory. They are some parameters that the user could change infrequently, for example 10 times per day at a maximum. In the range 100-2kB. As usually occurs, the parameters that changes more frequently (10 times per day) are fewer than parameters that changes very rarely (10-100 times in the device lifetime). How to save those data? After d...


[AVR] What assembler to use?

Started by Johann Klammer in comp.arch.embedded3 days ago 14 replies
AVR

I've just been trying to use avra, but it outputs coff or something, so obdump has trouble disassembling it. I am also not sure how to link the...

I've just been trying to use avra, but it outputs coff or something, so obdump has trouble disassembling it. I am also not sure how to link the result(ihex have no symbol info). So now I believe the thing is next to unusable. Someone correct me if I am wrong, plz. Are there any other, usable alternatives to Gas that have usable macro constructs (+labels)?


Press Release - Reliable Software Technologies, Ada-Europe 2018

Started by Dirk Craeynest in comp.arch.embedded1 week ago

----------------------------------------------------------------------- FINAL Call for Participation ...

----------------------------------------------------------------------- FINAL Call for Participation *** UPDATED Program Summary *** 23rd International Conference on Reliable Software Technologies - Ada-Europe 2018 18-22 June 2018, Lisbon, Portugal ...


Use of soft float?

Started by Philipp Klaus Krause in comp.arch.embedded2 weeks ago 13 replies

While those who make heavy use of floating-point computations in embedded sytems probably go for systems with hardware support...

While those who make heavy use of floating-point computations in embedded sytems probably go for systems with hardware support for floating-point calculations, there are plenty of systems without such support out there. And the existence of soft float implementations indicates that there is a real need for doing floating-point computations on systems without hardware floating-point support. ...


Guest Webinar: Heterogeneous Multiprocessing with Android on NXP i.MX 7

Started by Matthew Do in comp.arch.embedded2 weeks ago

Asymmetric multiprocessing (AMP) systems fulfill the need for high performances and real-time by combining the responsiveness of a MCU (Cortex-M)...

Asymmetric multiprocessing (AMP) systems fulfill the need for high performances and real-time by combining the responsiveness of a MCU (Cortex-M) with the processing power of an application processor which runs a full OS. This webinar presents a technical overview on asymmetric multiprocessing and its implementation on an NXP i.MX 7 Colibri System on Module running Android on the MPU (Cortex-A,...


Wear-leveling and Journaling file system for NOR flash?

Started by Dave Nadler in comp.arch.embedded2 weeks ago 3 replies

What are folks using for reliable file system on for example SST26VF064B 64Mbit SQI flash? Naive FAT will quickly wear out device for some...

What are folks using for reliable file system on for example SST26VF064B 64Mbit SQI flash? Naive FAT will quickly wear out device for some uses; needs a wear-leveling file system. Needs to be power-off safe as well; no corrupted file system from arbitrarily-timed power cut. Anybody? Thanks, Best Regards, Dave PS: A customer of ours used TINY by HCC some years back. It is unfortunately ...


LWM2M C Language Implementation for the Small Embedded IoT Devices

Started by Anonymous in comp.arch.embedded3 weeks ago 2 replies

Hi group! As a n00b in the IoT domain I have had trouble finding a suitable open source implementation in C for the LWM2M protocol with DTLS...

Hi group! As a n00b in the IoT domain I have had trouble finding a suitable open source implementation in C for the LWM2M protocol with DTLS support. What I have found so far are following implementations: - Contiki lwm2m: https://github.com/sics-iot/lwm2m-contiki - Wakaama LWM2M: https://github.com/eclipse/wakaama - Awa LWM2M: https://github.com/FlowM2M/AwaLWM2M - Anjay: https://gi


Cypress PSOC 6

Started by Anonymous in comp.arch.embedded3 weeks ago 3 replies

It has been a while since I looked at anything Cypress. I have a couple of PSOC something sticks that were fun to play with a bit, but I never...

It has been a while since I looked at anything Cypress. I have a couple of PSOC something sticks that were fun to play with a bit, but I never used the CPU for a project. Now they have come out with a PSOC 6 with asymmetric dual processors, and M4 and a M0+ with an optional BLE radio and stack. Looks like they are using the M0+ to control the BLE and the M4 is for user code. I t


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