未验证 提交 c377c4be 编写于 作者: V vandoul 提交者: GitHub

[nxp][lpc55sxx] add status to lpc_i2c_bus in drv_i2c for lpc55sxx. (#6935)

添加一个status,判断I2C执行结果来修复i2c传输始终正确的BUG。
上级 1b3d287c
......@@ -6,6 +6,7 @@
* Change Logs:
* Date Author Notes
* 2019-07-15 Magicoe The first version for LPC55S6x
* 2023-02-17 Vandoul Add status to lpc_i2c_bus.
*/
#include <rtthread.h>
......@@ -41,6 +42,7 @@ struct lpc_i2c_bus
uint32_t instance;
uint32_t baud;
char *device_name;
uint32_t status;
};
......@@ -63,6 +65,7 @@ struct lpc_i2c_bus lpc_obj[] =
static void i2c_mst_dma_callback(I2C_Type *base, i2c_master_dma_handle_t *handle, status_t status, void *userData)
{
struct lpc_i2c_bus *lpc_i2c = (struct lpc_i2c_bus*)userData;
lpc_i2c->status = status;
rt_sem_release(lpc_i2c->sem);
}
......@@ -121,6 +124,10 @@ static rt_ssize_t lpc_i2c_xfer(struct rt_i2c_bus_device *bus,
return i;
}
rt_sem_take(lpc_i2c->sem, RT_WAITING_FOREVER);
if(lpc_i2c->status != kStatus_Success)
{
break;
}
}
}
ret = i;
......
project.uvguix.*
DebugConfig
EventRecorderStub.scvd
\ No newline at end of file
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