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Code Issues Releases Activity

OP-340 I2C NACK causes next transfers to fail.

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Needed to clear the NACK flag in the ISR, or the next transfers seem to get a nack too because the IRQ comes back

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@3017 ebee16cc-31ac-478f-84a7-5cbb03baadba
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FredericG 2011-03-09 16:58:37 +00:00 committed by FredericG
parent f6a2584f12
commit 4c51e80b5b
1 changed files with 1 additions and 0 deletions
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flight/PiOS/STM32F10x/pios_i2c.c
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@ -1100,6 +1100,7 @@ void PIOS_I2C_ER_IRQ_Handler(uint32_t i2c_id)
if(event & I2C_FLAG_AF) {
i2c_nack_counter++;
I2C_ClearFlag(i2c_adapter->cfg->regs, I2C_FLAG_AF);
i2c_adapter_inject_event(i2c_adapter, I2C_EVENT_NACK);
} else { /* Mostly bus errors here */
i2c_adapter_log_fault(PIOS_I2C_ERROR_INTERRUPT);