j3d1/esp-open-rtos
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

Delaying and repeating i2c operation automatically when i2c interface is busy removed. User has to deal with concurrency using semaphores.

Browse source
This commit is contained in:
Gunar Schorcht 2017-11-04 14:23:24 +01:00
parent 5f58090924
commit 6eb6ac34cf
1 changed files with 2 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

12
extras/ccs811/ccs811.c
View file

@ -488,11 +488,7 @@ static bool ccs811_reg_read(ccs811_sensor_t* dev, uint8_t reg, uint8_t *data, ui
debug_dev ("Read %d byte from i2c slave starting at reg addr %02x.", __FUNCTION__, dev, len, reg); debug_dev ("Read %d byte from i2c slave starting at reg addr %02x.", __FUNCTION__, dev, len, reg);
int result = 0; int result = i2c_slave_read(dev->bus, dev->addr, &reg, data, len);
int count = 10;
while (count-- && (result = i2c_slave_read(dev->bus, dev->addr, &reg, data, len)) == -EBUSY)
vTaskDelay (1);
if (result) if (result)
{ {
@ -531,11 +527,7 @@ static bool ccs811_reg_write(ccs811_sensor_t* dev, uint8_t reg, uint8_t *data, u
# endif # endif
int result; int result = i2c_slave_write(dev->bus, dev->addr, &reg, data, len);
int count = 10;
while (count-- && (result = i2c_slave_write(dev->bus, dev->addr, &reg, data, len)) == -EBUSY)
vTaskDelay (1);
if (result) if (result)
{ {