Description
Hardware:
Board: Custom board
Core Installation/update date: Release 1.0.0
IDE name: Arduino IDE
Flash Frequency: 80Mhz
PSRAM enabled: no
Upload Speed: 115200
Computer OS: Windows 10
Description:
Hello,
I have a custom board with two I2C buses and have been happily using Stickbreaker’s fork (ie. release v.0.2.0 of https://github.com/stickbreaker/arduino-esp32 ) for quite a while. Things have been working great on this fork. Now I’d like to start using Release 1.0.0, since Stickbreaker’s work seems to have been integrated back into the main repo. However, I am hitting lots of error “install interrupt handler Failed=261” when initializing the second I2C bus, followed by a crash when setting an hw timer in my application code (cf traces below).
Would anybody have any idea of what I could be doing wrong? Is there something I need to change in my application code for it to work on Release 1.0.0?
From what I can tell, code 261 (0x105 ESP_ERR_NOT_FOUND I think) means “No free interrupt found with the specified flags”. Looking into the code where this error originates from (cores/esp32/esp32-hal-i2c.c, function i2cProcQueue) I think I see some differences between Release 1.0.0 (that gives me some trouble) and Stickbreaker’s fork (that works). Basically, the flags argument in the call to esp_intr_alloc_intrstatus() is now a combination of EPS_INTR_FLAG_xxx instead of just 0 in Stickbreaker’s fork. Now the crazy part: if I modify the 1.0.0 code to pass 0 as flags again (hum… yes, I tried that…), then everything seems to work (no more error, no more crash when setting up HW timer…).
References:
cores/esp32/esp32-hal-i2c.c
if(!i2c->intr_handle) { // create ISR for either peripheral
// log_i("create ISR %d",i2c->num);
uint32_t ret = 0;
uint32_t flags = ESP_INTR_FLAG_EDGE | //< Edge-triggered interrupt
ESP_INTR_FLAG_IRAM | //< ISR can be called if cache is disabled
ESP_INTR_FLAG_LOWMED; //< Low and medium prio interrupts. These can be handled in C.
log_w("MY TRACE: i2c->num=%d", i2c->num); // Trace I added….
if(i2c->num) {
ret = esp_intr_alloc_intrstatus(ETS_I2C_EXT1_INTR_SOURCE, flags, (uint32_t)&i2c->dev->int_status.val, 0x7FF, &i2c_isr_handler_default,i2c, &i2c->intr_handle);
} else {
ret = esp_intr_alloc_intrstatus(ETS_I2C_EXT0_INTR_SOURCE, flags, (uint32_t)&i2c->dev->int_status.val, 0x7FF, &i2c_isr_handler_default,i2c, &i2c->intr_handle);
}
if(ret!=ESP_OK) {
log_e("install interrupt handler Failed=%d",ret);
I2C_MUTEX_UNLOCK();
return I2C_ERROR_MEMORY;
}
}https://github.com/espressif/esp-idf/blob/master/components/esp32/include/esp_err.h
#define ESP_ERR_NOT_FOUND 0x105 /*!< Requested resource not found */https://docs.espressif.com/projects/esp-idf/en/latest/api-reference/system/intr_alloc.html
/*
...
* @return ESP_ERR_INVALID_ARG if the combination of arguments is invalid.
* ESP_ERR_NOT_FOUND No free interrupt found with the specified flags
* ESP_OK otherwise
*/
esp_err_t esp_intr_alloc_intrstatus(int source, int flags, uint32_t intrstatusreg, uint32_t intrstatusmask, intr_handler_t handler, void *arg, intr_handle_t *ret_handle);https://github.com/espressif/esp-idf/blob/3276a13/components/esp32/include/esp_intr_alloc.h
* @param flags An ORred mask of the ESP_INTR_FLAG_* defines. These restrict the
* choice of interrupts that this routine can choose from. If this value
* is 0, it will default to allocating a non-shared interrupt of level
* 1, 2 or 3. If this is ESP_INTR_FLAG_SHARED, it will allocate a shared
* interrupt of level 1. Setting ESP_INTR_FLAG_INTRDISABLED will return
* from this function with the interrupt disabled.
Traces (esp32 + app):
[D>][ 0.03][ZSER][ZSeries.h:540] setup BEGIN 0
[D_][ 0.03][ZSER][ZSeries.h:394] screenPower() True
[I_][ 0.04][SYST][System.h:267] scan()
[D>][ 0.04][I2C][System.h:89] scan BEGIN 0
[W][esp32-hal-i2c.c:974] i2cProcQueue(): MY TRACE: i2c->num=0
[IV][ 0.06][I2C] Name = I2CA
[IV][ 0.06][I2C] Expected = 0x19 0x34 0x76
[IV][ 0.06][I2C] Found = 0x19 0x34 0x76
[IV][ 0.06][I2C] Missing =
[IV][ 0.06][I2C] hasError = False
[D<][ 0.07][I2C][System.h:89] scan END 29
[D>][ 0.07][I2C][System.h:89] scan BEGIN 0
[W][esp32-hal-i2c.c:974] i2cProcQueue(): MY TRACE: i2c->num=1
[E][esp32-hal-i2c.c:982] i2cProcQueue(): install interrupt handler Failed=261
[W][esp32-hal-i2c.c:974] i2cProcQueue(): MY TRACE: i2c->num=1
[E][esp32-hal-i2c.c:982] i2cProcQueue(): install interrupt handler Failed=261
// … LOTS of errors
[W][esp32-hal-i2c.c:974] i2cProcQueue(): MY TRACE: i2c->num=1
[E][esp32-hal-i2c.c:982] i2cProcQueue(): install interrupt handler Failed=261
[IV][ 1.65][I2C] Name = I2CB
[IV][ 1.66][I2C] Expected = 0x40
[IV][ 1.66][I2C] Found =
[IV][ 1.66][I2C] Missing = 0x40
[IV][ 1.67][I2C] hasError = True
[D<][ 1.67][I2C][System.h:89] scan END 1597
[E_][ 1.67][SENS][SystemState.h:70] setError I2CB
[D>][ 1.68][BSL][Msp.h:457] setup BEGIN 0
[IV][ 1.70][MSPA] CRC_result = 57411
[W][esp32-hal-i2c.c:974] i2cProcQueue(): MY TRACE: i2c->num=1
[E][esp32-hal-i2c.c:982] i2cProcQueue(): install interrupt handler Failed=261
[W][esp32-hal-i2c.c:974] i2cProcQueue(): MY TRACE: i2c->num=1
[E][esp32-hal-i2c.c:982] i2cProcQueue(): install interrupt handler Failed=261
[IV][ 1.72][MSP] bootRunning = False
[IV][ 1.72][MSP] appRunning = False
[E_][ 1.72][MSP][Msp.h:488] Could not figure out what MSP is currently running
[IV][ 1.73][MSP] TRANSITION = Unknown -> Error
[D<][ 1.74][BSL][Msp.h:457] setup END 59
[I_][ 1.74][EPRM][Eeprom.h:138] save()
[D>][ 1.78][MAX11613][MAX11613.h:265] setup BEGIN 0
[D<][ 1.79][MAX11613][MAX11613.h:265] setup END 9
[D>][ 1.79][HEAD][Head.h:645] setup BEGIN 0
[D>][ 1.79][DSP][Display.h:253] setup BEGIN 0
[D<][ 1.79][DSP][Display.h:253] setup END 1
[D<][ 1.79][HEAD][Head.h:645] setup END 4
Guru Meditation Error: Core 0 panic'ed (LoadProhibited). Exception was unhandled.
Core 0 register dump:
PC : 0x40180f03 PS : 0x00060e30 A0 : 0x800f6c06 A1 : 0x3ffb3ed0
A2 : 0x00000000 A3 : 0x0000060e A4 : 0x40081df4 A5 : 0x00000001
A6 : 0x3ffd2730 A7 : 0x00000000 A8 : 0x800feea0 A9 : 0x3ffb3e80
A10 : 0x00000105 A11 : 0x0000060e A12 : 0x00000000 A13 : 0x00000000
A14 : 0x40081df4 A15 : 0x00000000 SAR : 0x00000020 EXCCAUSE: 0x0000001c
EXCVADDR: 0x00000000 LBEG : 0x4000c2e0 LEND : 0x4000c2f6 LCOUNT : 0x00000000
Backtrace: 0x40180f03:0x3ffb3ed0 0x400f6c03:0x3ffb3ef0 0x400eab45:0x3ffb3f10 0x400eabb2:0x3ffb3f80 0x400f026b:0x3ffb3fa0
Rebooting...
0x40180f03: esp_intr_get_cpu at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/intr_alloc.c line 772
0x40081df4: __timerISR at C:\Users\adrien\Documents\Arduino\hardware\espressif\esp32\cores\esp32/esp32-hal-timer.c line 173
0x40081df4: __timerISR at C:\Users\adrien\Documents\Arduino\hardware\espressif\esp32\cores\esp32/esp32-hal-timer.c line 173
0x40180f03: esp_intr_get_cpu at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/intr_alloc.c line 772
0x400f6c03: timerAttachInterrupt at C:\Users\adrien\Documents\Arduino\hardware\espressif\esp32\cores\esp32/esp32-hal-timer.c line 173