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In the case of a repeated start, we won't get a STOPF/AF status, but we still need to complete the old transaction before handling ADDR.

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px4dev
2013-01-26 16:11:31 -08:00
parent e0f83af96f
commit 6bd662cfb2
1 changed files with 2 additions and 2 deletions
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apps/px4io/i2c.c
+2 -2
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@@ -157,7 +157,7 @@ i2c_interrupt(int irq, FAR void *context)
{
uint16_t sr1 = rSR1;
if (sr1 & (I2C_SR1_STOPF | I2C_SR1_AF)) {
if (sr1 & (I2C_SR1_STOPF | I2C_SR1_AF | I2C_SR1_ADDR)) {
if (sr1 & I2C_SR1_STOPF) {
/* write to CR1 to clear STOPF */
@@ -165,7 +165,7 @@ i2c_interrupt(int irq, FAR void *context)
rCR1 |= I2C_CR1_PE;
}
/* it's likely that the DMA hasn't stopped, so we have to do it here */
/* DMA never stops, so we should do that now */
switch (direction) {
case DIR_TX:
i2c_tx_complete();