flok

Hi, The gdb of this version unfortunately doesn't run on Ubuntu 24.10: folkert@snsv ~/.arduino15 $ ./packages/teensy/tools/teensy-compile/11.3.1/arm/bin/arm-none-eabi-gdb ./packages/teensy/tools/teensy-compile/11.3.1/arm/bin/arm-none-eabi-gdb...

Ah that looks useful! Thanks, will definitely give it a try.

I don't think I agree with the embedded platform in general. E.g. the esp32 dumps a stacktrace when something bad happens.

Hi, I was missing a stack-trace thing for when my program crashes. I came up with something that works reasonably well for my use-case (not really a stack-trace but it'll do for now). Every interesting point in the source-code, I add a...

I used CrashReport.breadcrumb() and printf etc.

There are indeed differences (I checked with a led blinker compile). BUT: both the arduino ide version AND platformio use the -fno-exceptions switch. And thus a 'new something[]();' will fail silently when running out of memory. Then it dawned...

I'm running Linux with platformio. I'm kind of certain that I got the right version of addr2line: /home/folkert/.platformio/packages/toolchain-gccarmnoneeabi-teensy/bin/arm-none-eabi-addr2line as there's teensy in thee directory-name, and it is...

I think I do so. I use platformio which automatically installs all the dependencies with the correct version.

I did. In csdDmp (line 71 of SdInfo.ino) it says "erasesize is ... blocks" but it did not specify how big a block is (as 512 bytes is not a given these days, some media have 4k sectors). Also it says 64512 blocks. Shouldn't that be a power of 2...

Could you please describe the addr2line? Because everytime a program of mine crashes, e.g.: Code was executing from address 0x41F24 addr2line never seems to be able to convert that: $...

Haha yes indeed I forgot that seek in the test-code. What I saw though without the seek was not the data of the earlier iteration (what was expected) but garbage. *with* the seek, I get all correct data. Puzzled.

I've reduced my code 100-fold (6k lines to 56 lines) and this shows it failing: #include <SD.h> FsFile file; void setup() { Serial.begin(115200); if (SD.sdfs.begin(SdioConfig(DMA_SDIO))) Serial.println(F("Init SD-card...

Yeah please ignore that copy/paste error for the write. that arm_dcache_flush should've been for data_write etc as well

Yeah so that makes: arm_dcache_flush_delete(buffer, block_size); ssize_t rc = file.read(buffer, block_size); to make sure that after the file.read, it will go through the cache and fetch from ram. And write...

Hi, I would like to optimize SD write access. So ideally I would like to group multiple writes into one that fits in a erase-sector. For that I need to know what offset ina file is for what erase-sector. Is it possible to obtain that information...

I got back to my project to see if I can do any performance tweaks. In the March version of my project I just did a arm_dcache_flush_delete for both read and writes, but that may be a bit overdoing it? Especially as @jmarsh wrote that (only)...