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[NUCLEO_F103RB] enhance I2C for EEPROM

pull/383/head
dbestm 2014-07-01 14:06:22 +02:00
parent 372a0ae662
commit 2af0e5b5fc
1 changed files with 3 additions and 5 deletions
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8
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/i2c_api.c
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@ -139,8 +139,6 @@ int i2c_read(i2c_t *obj, int address, char *data, int length, int stop) {
int count;
int value;
if (length == 0) return 0;
i2c_start(obj);
// Send slave address for read
@ -151,7 +149,7 @@ int i2c_read(i2c_t *obj, int address, char *data, int length, int stop) {
while (I2C_CheckEvent(i2c, I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED) == ERROR) {
timeout--;
if (timeout == 0) {
return 0;
return -1;
}
}
@ -189,7 +187,7 @@ int i2c_write(i2c_t *obj, int address, const char *data, int length, int stop) {
while (I2C_CheckEvent(i2c, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED) == ERROR) {
timeout--;
if (timeout == 0) {
return 0;
return -1;
}
}
@ -226,7 +224,7 @@ int i2c_byte_read(i2c_t *obj, int last) {
while (I2C_GetFlagStatus(i2c, I2C_FLAG_RXNE) == RESET) {
timeout--;
if (timeout == 0) {
return 0;
return -1;
}
}