[jhinkle]

In reply to your post 7993 – I provided that it was not resetting.

I could place the BP in user_init() and it hits once.

Place the BP on the s_Tick++ and it run and breaks without the value being updated.  I place the BP after the s_Tick++ and it get incremented.  That is why I stated it appears to be an issue with the instruction simulation associated with the BP.

I will try your code shortly.

Thanks.

 

[jhinkle]

Does using the gdbstub inhibit the use of os_printf?

I’ve spent 6 hours trying and researching on outputing os_printf();

I see that the gdbstub.c defines it as … int os_printf_plus(const char *format, …)  __attribute__ ((format (printf, 1, 2)));

I have two usb-uart attached to the ESP — one on uart0 — programming and gdb — the other connected to uart1-tx

I get the standard resart and sdk check info coming out uart1 — but nothing else.

I have run the application – not attached to the debugger — having uart0 go to a terminal program — no os_printf info.

Can you please share how to acquire the os_printf() info?

Baudrate in both cases is 74800.

Thanks.

 

[jhinkle]

I’m doing a detailed debug to try to resolve my issues.

JTAG is on hold and I’m using the gdbstub+serial

I created a new project – blink led + iot sdk

Below is a portion of the code from BlinkLED.c

static os_timer_t s_Timer;
int s_Tick = 0;

void TimerFunction(void *arg)
{
s_Tick++;

//Uncomment the line below to disable the software watchdog that will restart the ESP8266 system after it spends more than ~1 second stopped at a breakpoint.
system_soft_wdt_stop();

if (GPIO_REG_READ(GPIO_OUT_ADDRESS) & BIT1)
{
gpio_output_set(0, BIT1, BIT1, 0);
}
else
{
gpio_output_set(BIT1, 0, BIT1, 0);
}
}

int user_init()
{
#ifdef ESP8266_GDBSTUB
gdbstub_init();
#endif
gpio_init();

#ifdef ESP8266_GDBSTUB
//#error The LED on the Olimex board is multiplexed with the TXD line used by the GDB stub. In order to use the stub, select a different LED pin below.
#endif
PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDO_U, FUNC_GPIO1); //PERIPHS_IO_MUX_U0TXD_U

gpio_output_set(0, BIT1, BIT1, 0);
os_timer_setfn(&s_Timer, TimerFunction, NULL);
os_timer_arm(&s_Timer, 300, 1);

return 0;
}

I changed the led pin to a different pin as shown above. and removed the DOG from playing.

set break point at return from user_init and all works well to that point.

I remove the BP and set it at the s_Tick++; in TimerFunction() and RUN.

BP is hit — run — BP hit … can do this without issue –GOOD!.

I try to see the value of s_Tick to verify the program is running or just resetting.

It appears that the gdbstub has an issue properly emulating the instruction the BP is set to.

I set the BP to the s_Tick and perform multiple RUN/BP break and the s_Tick never changes.

I set the BP to the next line of code … system_soft_wdt_stop(); and s_Tick will increment as expected.

So … it appears you have to be very careful where you set BreakPoints or your BP may introduce execution errors — Please confirm this is true.

 

Another observation — not an issue — just a Be Aware.

When you want to perform a debug run, and your setup is to only flash if code changes, NO BP that are set in the user_init() will be hit because the ESP has already executed past that point … so make sure your BP is set where it can be reached outside on any one-time init calls.

 

Next test …. BlinkLED using RTOS.

Made the change to  PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDO_U, FUNC_GPIO1);  as in the iot sdk.

Set BP in user_init().

BP never hit — GDB times out … error

Changed the BP to the LEDBlinkTask() … same result … BP never hit — GDB times out … error

So … it appears RTOS programs are crashing/lock-up prior to reaching user_init();

Are you aware of any RTOS implementation bugs?

Is YOUR testing of RTOS BlinkLed working?

What can I provide to help resolve the RTOS implementation issue I am encountering?

Thanks

 

• This reply was modified 8 years, 7 months ago by support. Reason: formating

[jhinkle]

More info

Connecting to GDB stub …

too long

target remote //./COM3

I tried at both 74800 and 115200 baud … both behaved the same way.

Again — flashed OK — just not debug.

 

[jhinkle]

I would like to use this program — but only if I can get it to work.

I gave up on jtag and setup for gdbstub using a serial port.

Compiled and flash OK but the GDB Session failed to start with error: “Program is not being run”.

Any ideas.

Thanks.

 

[jhinkle]

ESP-03 is the same as the Olimex ESP8266 board.

Any other suggestions?

My trial period is up soon and I have not got things to work yet.

Thanks.

 

 

[jhinkle]

Sorry – found them.

 

The settings are correct – they are the same when flashing the chip using esptool.

 

[jhinkle]

Where do you set/change the flash FLASH type, speed and size settings.

I have looked in properties and fond nothing.

Thanks in advance to informing me.

[jhinkle]

Update

Started another new project

ESP8266 -> Blink Led using IoT sdk.

It locks/fails just like the HTTP – rtos project.

 

So running out of ram seems to work OK — but — bring in the sdk and it fails.

Are this good proven projects?

 

[jhinkle]

Update

Started a new project

ESP8266-NOFLASH –> Blink LED

All works as expected.

So what’s happening to the HTTP Server – RTOS project?

 

[jhinkle]

Went back to debug – “Emulate a CPU reset”

help?

[jhinkle]

Update

Changed Reset in debug properties to “Reset Chip”.

It never breaks at my breakpoint in “user_init” but does break on its own in the “ServerTask” … note ServerTask is created and started from user_init() so it does not make sense.

the following is reported when the break occurs: Received a SIGTRAP: Trace/breakpoint trap.

Any comments appreciated.

 

[jhinkle]

Next issue …

VisualGDB flashed the ESP-03 but display the following information:

trst_and_srst separate srst_gates_jtag trst_push_pull srst_open_drain connect_deassert_srst
adapter speed: 1000 kHz
stop_wdt
Info : clock speed 1000 kHz
Info : TAP esp8266.cpu does not have IDCODE
Info : halted: PC: 0x4000118c
Info : debug cause: 0x20
Info : accepting ‘gdb’ connection on tcp/3333
Info : TAP esp8266.cpu does not have IDCODE
Warn : xtensa_poll: DOSR has set InOCDMode without the Exception flag. Unexpected. DOSR=0x04
target state: halted
Info : halted: PC: 0x4000118c
Info : debug cause: 0x20
Warn : xtensa_deassert_reset: ‘reset halt’ is not supported for Xtensa. Have halted some time after resetting (not the same thing!)
Info : halted: PC: 0x40005668
Info : debug cause: 0x1
Info : halted: PC: 0x4010013c
Info : debug cause: 0x8
Info : halted: PC: 0x4010013c
Info : debug cause: 0x8
Info : halted: PC: 0x4010013c
Info : debug cause: 0x8
Info : halted: PC: 0x4010013c
Info : debug cause: 0x8
Info : halted: PC: 0x4010013c
Info : debug cause: 0x8
Info : halted: PC: 0x4010013c
Info : debug cause: 0x8
Info : halted: PC: 0x4010013c
Info : debug cause: 0x8
Info : halted: PC: 0x4010013c
Info : debug cause: 0x8
Interrupt suppression during single-stepping is now enabled
Watchdog feeding during stops is now enabled

 

My break point was never reached so the ESP has crashed or not running.

I connected the jumper pads on the ESP-03 which allows GPIO16 to manipulate the RESET pin.

I have connected GPIO16 to jtag pin 3

I’ve connected GPIO0 to vcc (thru a resistor).

GPIO15 to vcc  (thru a resistor).

I believe GPIO0 and GPIO15 are proper — if not — please tell me.

I’ve loaded the HTTP RTOS server as the test program.

I’ve “break all” and went to see the hardware registers to check the IP — but non have been implemented.

Are the ESP8266 hardware registers going to be available in the future?

Without access to the registers I have no idea as to the IP location … locked?  running??

I know it never entered “user_init”

Any comment appreciated.

 

 

[jhinkle]

I think I resolved it.

 

Got Zidag and it loaded the Olimex driver.

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