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ChibiOS
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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5538 35acf78f-673a-0410-8e92-d51de3d6d3f4

This commit is contained in:
gdisirio 2013-04-02 18:08:00 +00:00
parent 96d50f2ac1
commit d1e24e796e
2 changed files with 16 additions and 12 deletions
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27
os/hal/platforms/STM32/I2Cv2/i2c_lld.c
View File

@ -179,20 +179,23 @@ static void i2c_lld_serve_interrupt(I2CDriver *i2cp, uint32_t isr) {
dp->CR2 |= I2C_CR2_STOP; dp->CR2 |= I2C_CR2_STOP;
} }
} }
else if (isr & I2C_ISR_STOPF) { if (isr & I2C_ISR_NACKF) {
/* Stops the associated DMA streams.*/ /* Starts a STOP sequence immediately.*/
dmaStreamDisable(i2cp->dmatx); dp->CR2 |= I2C_CR2_STOP;
dmaStreamDisable(i2cp->dmarx);
wakeup_isr(i2cp, RDY_OK);
}
else if (isr & I2C_ISR_NACKF) {
/* Stops the associated DMA streams.*/
dmaStreamDisable(i2cp->dmatx);
dmaStreamDisable(i2cp->dmarx);
i2cp->errors |= I2CD_ACK_FAILURE; i2cp->errors |= I2CD_ACK_FAILURE;
wakeup_isr(i2cp, RDY_RESET); }
if (isr & I2C_ISR_STOPF) {
/* Stops the associated DMA streams.*/
dmaStreamDisable(i2cp->dmatx);
dmaStreamDisable(i2cp->dmarx);
if (i2cp->errors) {
wakeup_isr(i2cp, RDY_RESET);
}
else {
wakeup_isr(i2cp, RDY_OK);
}
} }
} }

1
testhal/STM32F37x/I2C/main.c
View File

@ -103,6 +103,7 @@ int main(void) {
chSysHalt(); chSysHalt();
} }
chThdSleepMilliseconds(500); chThdSleepMilliseconds(500);
palTogglePad(GPIOC, GPIOC_LED2);
} }
return 0; return 0;
} }