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I2C. Testhal switch to synchronous driver model. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/i2c_dev@3571 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
barthess 2011-12-07 17:58:42 +00:00
parent 0738591b02
commit b9df6d7c80
2 changed files with 18 additions and 23 deletions
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25
testhal/STM32F1xx/I2C/lis3.c
View File

@ -25,27 +25,6 @@ static int16_t acceleration_x = 0;
static int16_t acceleration_y = 0;
static int16_t acceleration_z = 0;
/* Error trap */
static void i2c_lis3_error_cb(I2CDriver *i2cp, const I2CSlaveConfig *i2cscfg){
(void)i2cscfg;
int status = 0;
status = i2cp->id_i2c->SR1;
while(TRUE);
}
/* This callback raise up when transfer finished */
static void i2c_lis3_cb(I2CDriver *i2cp, const I2CSlaveConfig *i2cscfg){
(void)i2cp;
(void)i2cscfg;
}
/* Accelerometer lis3lv02dq config */
static const I2CSlaveConfig lis3 = {
i2c_lis3_cb,
i2c_lis3_error_cb,
};
/**
* Init function. Here we will also start personal serving thread.
@ -59,7 +38,7 @@ int init_lis3(void){
/* sending */
i2cAcquireBus(&I2CD1);
i2cMasterTransmit(&I2CD1, &lis3, lis3_addr, accel_tx_data, 4, accel_rx_data, 0);
i2cMasterTransmit(&I2CD1, lis3_addr, accel_tx_data, 4, accel_rx_data, 0);
i2cReleaseBus(&I2CD1);
return 0;
}
@ -70,7 +49,7 @@ int init_lis3(void){
void request_acceleration_data(void){
accel_tx_data[0] = ACCEL_OUT_DATA | AUTO_INCREMENT_BIT; // register address
i2cAcquireBus(&I2CD1);
i2cMasterTransmit(&I2CD1, &lis3, lis3_addr, accel_tx_data, 1, accel_rx_data, 6);
i2cMasterTransmit(&I2CD1, lis3_addr, accel_tx_data, 1, accel_rx_data, 6);
i2cReleaseBus(&I2CD1);
acceleration_x = accel_rx_data[0] + (accel_rx_data[1] << 8);

16
testhal/STM32F1xx/I2C/main.c
View File

@ -57,6 +57,22 @@ static msg_t PollAccelThread(void *arg) {
}
/*
* Accelerometer thread
*/
static WORKING_AREA(PollAccelThreadWA, 128);
static msg_t PollAccelThread(void *arg) {
(void)arg;
systime_t time = chTimeNow();
while (TRUE) {
time += MS2ST(20);
request_acceleration_data();
chThdSleepUntil(time);
}
return 0;
}
/*