Hello,
I'm trying to use avr-gcc to write a trivial firmare and my code
doesn't run as expected. I have tried to find a solution without any result.
My current source code is available on
https://hilbert.systella.fr/test.tar.gz
I have designed a PCB with an
Jim Jackson a écrit :
>
> Not looked too closely, but ...
>
> On Fri, 3 Apr 2020, BERTRAND Joël wrote:
>
>> ISR(TIMER1_COMPA_vect, ISR_BLOCK)
>> {
>> uint8_t i;
>>
>> interrupt_counter = (interrupt_counter + 1) % 25;
I have written in a header :
static gpio_t i_led[i_max] =
{
{ , , 3, 0 },
{ , , 4, 0 },
{ , , 5, 0 },
{ , , 6, 0 },
{ , , 7, 0 },
{ , , 0, 0 },
Strange. Following function runs as expected.
enum ldl_mac_status LDL_MAC_otaa(struct ldl_mac *self)
{
enum ldl_mac_status retval;
union ldl_mac_response_arg arg;
LDL_PEDANTIC(self != NULL)
if(self->ctx.joined){
retval = LDL_STATUS_JOINED;
}
else
BERTRAND Joël a écrit :
> Trampas Stern a écrit :
>> Does the code run if you comment out 'lora_send("coucou", 7);
>
> Yes. To be honnest, if I comment out LDL_MAC_otaa(), it runs.
>
>> Does it still crash with simple main() { _delay_ms(1000);
>> s
Trampas Stern a écrit :
> Also when you print out the size in the make file, how much SRAM does it
> indicate your program is using?
AVR Memory Usage
Device: atmega1284
Program: 101324 bytes (77.3% Full)
(.text + .data + .bootloader)
Data: 6890 bytes (42.1% Full)
(.data
David Brown a écrit :
> On 22/06/2021 18:00, Ian Molton wrote:
>> On 22/06/2021 12:59, BERTRAND Joël wrote:
>>> Hello,
>>>
>>> I'm writing a firmware for a board that uses a ATMega 1284. Firmware
>>> continuously restarts
>>
>>
Trampas Stern a écrit :
> Does the code run if you comment out 'lora_send("coucou", 7);
Yes. To be honnest, if I comment out LDL_MAC_otaa(), it runs.
> Does it still crash with simple main() { _delay_ms(1000);
> stty_print("hello");}
>
> That is start removing code until it works, when
Some news.
In lorawan/ldl_mac.c is defined LDL_MAC_otaa :
enum ldl_mac_status LDL_MAC_otaa(struct ldl_mac *self)
{
enum ldl_mac_status retval;
union ldl_mac_response_arg arg;
LDL_PEDANTIC(self != NULL)
if(self->ctx.joined){
retval = LDL_STATUS_JOINED;
Comparaison between good.S and bad.S.
Good.elf is compiled with :
app_handler(self->app, LDL_MAC_DEV_NONCE_UPDATED, );
instead of bad.elf that is compiled with :
self->handler(self->app, LDL_MAC_DEV_NONCE_UPDATED, );
in enum ldl_mac_status LDL_MAC_otaa(struct ldl_mac *self)
David Brown a écrit :
> On 23/06/2021 10:37, BERTRAND Joël wrote:
>
>> In bad.S, self->handler(self->app, LDL_MAC_DEV_NONCE_UPDATED, ) gives :
>> a340: 68 01 movwr12, r16
>> a342: ff e4 ldi r31, 0x4F ; 79
>>
Senthil Kumar a écrit :
> What version of the compiler are you using?
I have seen this bug with Debian compiler :
hilbert:[~] > avr-gcc -v
Using built-in specs.
Reading specs from /usr/lib/gcc/avr/5.4.0/device-specs/specs-avr2
COLLECT_GCC=avr-gcc
Hello,
I'm writing a firmware for a board that uses a ATMega 1284. Firmware
continuously restarts and I'm not able to fix this bug. It looks like a
memory corruption, but after several days without finding this bug, I
doubt. Hardware seems to be bug free and runs as expected.
Trampas Stern a écrit :
> Can you comment out lines and have firmware run?
I don't understand. I have tried to comment out some lines. Sometimes
firmware runs as expected, sometimes, it continuously reboots.
When I comment out some lines or add some debug trace, firmware desn't
Trampas Stern a écrit :
> You also need to send the rest of the code.
>
> For example it could be that rx_len is where memory overflow is happening
>
> cascade:
> * rx_len = sizeof(sak);*
> snprintf(t, 3, "%d", (*tag).level);
>
> On Thu, May 20, 2021 at 11:07 AM Trampas Stern
RSA doesn't run as expected. With expopent=3 and length=512, program
doesn't crash but after four hours (@ 16 MHz on simavr), gdb shows that
program stays in RSA subroutines and doesn't return to main routine.
Something is probably broken somewhere.
I have found a uECC library but I don't
Hello,
I'm writting a CLRC632 driver for an ATmega1284. For a while, trace
were sent to a VFD screen but there is a lot of information and this
screen is too little to be usable.
Thus, I have configured a serial port with RTS/CTS lines with
avr-usart-lib . My config
Senthil Kumar a écrit :
> On Sat, May 22, 2021 at 1:21 AM BERTRAND Joël
> wrote:
>>
>> Hello,
>>
>> I'm trying to build a recent gcc to check if my issue comes from
>> compiler or not. Thus, I have downloaded gcc 10.3.0 sources. Of course,
&g
Nigel Winterbottom a écrit :
> I took a quick look and attempted to compile your Crypto library in
> Visual Studio.
>
> I got nowhere: Probably for good reasons; Microsoft C doesn't allow
> dynamic array size like this:
>
> bigint_word_t d_b[a->length_W + b->length_W];
>
> This is about as
David Brown a écrit :
> On 29/05/2021 14:37, BERTRAND Joël wrote:
>> Nigel Winterbottom a écrit :
>>> I took a quick look and attempted to compile your Crypto library in
>>> Visual Studio.
>>>
>>> I got nowhere: Probably for good reasons; Microsof
Hello,
I beg your pardon as my question is not related to gcc itself.
I have added to my firmware a subset of avr-crypto-lib (AES and RSA).
If AES128/192/256 run as expected, RSA causes a memory corruption.
Of course, I don't generate RSA key on AVR. I create this key
Hello,
I'm trying to build a recent gcc to check if my issue comes from
compiler or not. Thus, I have downloaded gcc 10.3.0 sources. Of course,
on my debian/testing workstation, I have avr avr-binutils and avr-libc.
I have configured gcc with :
Paweł Si a écrit :
>
>
> pt., 21 maj 2021 o 12:09 BERTRAND Joël <mailto:joel.bertr...@systella.fr>> napisał(a):
>
> Trampas Stern a écrit :
> > You also need to send the rest of the code.
>
>
> This was actually a good advice, most like
Paweł Si a écrit :
>
> sob., 22 maj 2021 o 09:49 BERTRAND Joël <mailto:joel.bertr...@systella.fr>> napisał(a):
>
> I'm not sure. In main() you will find :
>
> rfid_tag_t tag;
> iso14443a_anticol(0, );
>
>
> I would
Senthil Kumar a écrit :
> The following configure/make/make install worked just fine
>
> $ ~/src/gcc-10.3.0/configure --target=avr --enable-languages=c,c++
> --prefix=/home/saaadhu/install --disable-nls --disable-libssp
> --with-dwarf2
>
> I suspect fortran in --enable-languages is what is
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512
bg a écrit :
>
>>> RSA doesn't run as expected. With expopent=3 and length=512,
>>> program doesn't crash but after four hours (@ 16 MHz on
>>> simavr), gdb shows that program stays in RSA subroutines and
>>> doesn't return to main routine.
Senthil Kumar a écrit :
> https://gcc.gnu.org/bugzilla/
>
> You would need a reduced testcase/preprocessed file (xxx.i obtained by
> compiling with -save-temps) to debug the issue - the .S file isn't
> useful to debug the compiler.
Done.
Senthil Kumar a écrit :
> This looks like a miscompilation to me.
...
> What version of the compiler are you using? Can you make a reduced
> testcase containing just the LDL_MAC_otaa function?
Just a question. Should I fill a bug report ? And if yes, where ?
Best regards,
Some news.
I remember I have used uECC a long time ago without this kind of bug. I
have rebuilt the same code (with uECC_avr defined), but I have compiled
this library not with gcc 11.1.0, but with 5.4.0.
And I obtain :
simavr -t -m atmega1284 -f 1600 test2.elf
Some news.
I remember I have used uECC a long time ago without this kind of bug. I
have rebuilt the same code (with uECC_avr defined), but I have compiled
this library not with gcc 11.1.0, but with 5.4.0.
And I obtain :
simavr -t -m atmega1284 -f 1600 test2.elf
Some news.
I have uploaded a simple example at
https://hilbert.systella.fr/public/test_uecc.tar.gz
This tarball contains minimal code to trigger this issue, makefile and
two asmb output :
- ok.asm
- ko.asm
ok.asm runs as expected and was built with
#define
Hello,
I'm using microecc library (https://github.com/kmackay/micro-ecc) on an
ATmega 1284 CPU and it only runs as expected if I define
uECC_arch_other. When library is built with uECC_avr, all tests fail.
For example, I have written this simple test:
#include
void stty_print(unsigned char *);
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