Oh indeed. I now do not get an error.
It's not clear to me though which one to use when arm_dcache_delete or arm_dcache_flush.
For write I do now both before the file.write() call.
I verified the contents of the sd card on my pc but the data is...
Hi,
I think I'm doing something wrong but I can't figure out what. The situation is that if I write a block of data to the SD-card and then read it back again, then parts of the written data are missing (some parts are then all 0x00) or it is...
Yes, it is in the ESP32 microcontrollers folder. I have to rename that folder (will do so now but it may take a bit). I just renamed that folder from ESP32 to microcontrollers.
It uses platformio.
So
pio run -t upload -e Teensy4_1
should...
In this graph you see that iTEENSY quickly goes to 10MB/s, maxing out the Ethernet connection:
Thus in theory the Teensy4.1 should be able to reach higher speeds even (if it would have Gb Ethernet).
Hi,
Remote storage is usually a NAS or a SAN. A NAS is where you access data by files. p:\\diary.pdf or so. A SAN is accessed via a protocol like iSCSI, FC and others. A client ("initiator") then requests blocks of data like how it does from a...
I always wanted to write an iSCSI target since I worked (professionally) with IBM iSCSI boxes (iSCSI is used to communicated with SAN systems. It allows blocks of data to be transferred to client systems.).
I finally got around doing so. There...
Hi,
How can I get a backtrace?
Not neccessarily in a debugger, just via serial.
Addresses are enough (I can get line numbers and such via e.g. ~/.platformio/packages/toolchain-gccarmnoneeabi-teensy/bin/arm-none-eabi-addr2line -e...
I fixed it: the compile problems with QNEthernet were due to conflicts with a board-package version.
Yes, with QNEthernet the networking problems are gone. Nice!
Please close the ticket :)
(now the SD card does not seem to work?!)
I shrunk the program a bit and it still shows the problem:
#include <NativeEthernet.h>
#include <NativeEthernetUdp.h>
EthernetServer *server { nullptr };
EthernetUDP *handle { nullptr };
uint8_t mac[6] { 0x12, 0x34, 0x56, 0x78, 0x9a...
Hi,
Thanks.
It did change the behaviour indeed. It looks like it now works altough one time I did not even pressed reset and it already started flashing (or maybe the reset button is very sensitive and I did not notice that I was touching it...
Hi,
I'm trying to port an application of mine to the teensy 4.1. Compiling and linking is no problem but networking is problematic (for me at least :) ).
I have two sockets:
one listens on a UDP port
one listens on a TCP port
What I then do...
Hi,
Received my Teensy 4.1 in the mail today. Looks good!
Flashing fails every 1st time though (2nd succeeds, 3d fails, 4th succeeds etc)
Configuring upload protocol...
AVAILABLE: jlink, teensy-cli, teensy-gui
CURRENT: upload_protocol =...
Were you be able to fix this problem? I'm seeing it as well:
/home/folkert/.platformio/packages/toolchain-gccarmnoneeabi-teensy/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/bin/ld...
Hi,
I'm trying to port an application of my from the ESP32/RP2040 to the Teensy 4.1 platform.
It uses std:: optional but that does not seem to be supported?
Any plans to do so?
Thanks!