ChibiOS Free Embedded RTOS

hi,

I2C I/O settings is as follow:

palSetPadMode(GPIOB, 10, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN); /* SCL */
palSetPadMode(GPIOB, 11, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN); /* SDA */


After some more speed & duty-cycle combination checking, the followings are working ...

Thanks a lot for your quick reply...
from any reason this is the only configuration that is working for me:
static const I2CConfig i2cfg2 = {
OPMODE_I2C,
400000,
FAST_DUTY_CYCLE_2,
};

any chnge in speed or dutycycle is not working. same resaults on I2CD1 or I2CD2...
while testing I2C with my ...

hi
I'm testing testhal, I2C example on STM32F4-Discovery.
I've noticed that in this example board.h is NONSTANDARD_STM32F4_BARTHESS1 and not ST_STM32F4_DISCOVERY.
When I've changed board.h to DISCOVERY, I2CD2 was not working. Then I realized that GPIOB_CLK_IN, GPIOB_SDA are connected to (PIN10,PIN9 ...