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I2C. Initialization of RC2 register now doing only once in start() function. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@3744 35acf78f-673a-0410-8e92-d51de3d6d3f4
master
barthess 2012-01-05 19:19:13 +00:00
parent b109cacb8a
commit c048ac69ff
1 changed files with 3 additions and 3 deletions
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6
os/hal/platforms/STM32/i2c_lld.c
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@ -147,6 +147,7 @@ static void i2c_lld_abort_operation(I2CDriver *i2cp) {
/* Stops the I2C peripheral.*/
i2cp->i2c->CR1 = I2C_CR1_SWRST;
i2cp->i2c->CR1 = 0;
i2cp->i2c->CR2 = 0;
i2cp->i2c->SR1 = 0;
/* Stops the associated DMA streams.*/
@ -311,11 +312,9 @@ static void i2c_lld_serve_event_interrupt(I2CDriver *i2cp) {
break;
case I2C_EV6_MASTER_REC_MODE_SELECTED:
dmaStreamEnable(i2cp->dmarx);
i2cp->i2c->CR2 |= I2C_CR2_DMAEN | I2C_CR2_LAST;
break;
case I2C_EV6_MASTER_TRA_MODE_SELECTED:
dmaStreamEnable(i2cp->dmatx);
i2cp->i2c->CR2 |= I2C_CR2_DMAEN | I2C_CR2_LAST;
break;
case I2C_EV8_2_MASTER_BYTE_TRANSMITTED:
/* Catches BTF event after the end of transmission.*/
@ -669,7 +668,8 @@ void i2c_lld_start(I2CDriver *i2cp) {
/* Reset i2c peripheral.*/
i2cp->i2c->CR1 = I2C_CR1_SWRST;
i2cp->i2c->CR1 = 0;
i2cp->i2c->CR2 = I2C_CR2_ITERREN | I2C_CR2_ITEVTEN;
i2cp->i2c->CR2 = I2C_CR2_ITERREN | I2C_CR2_ITEVTEN |
I2C_CR2_DMAEN | I2C_CR2_LAST;
/* Setup I2C parameters.*/
i2c_lld_set_clock(i2cp);