HI, ALL
i dont know what i have missed, but the code can not read the data
extern stm32f4_i2c_bus_entry *const stm32f4_i2c1;
rtems_task Init(rtems_task_argument argument)
{
puts( "\n\n*** i2c test begin ***\n");
uint8_t buf[20] = {0};
rtems_status_code sc = stm32f4_i2c_init(stm32f4_i2c1);
printf("the sc is %d\n", sc);
stm32f4_i2c_message msg = {0};
msg.addr = 0x50;
msg.read = false;
msg.len = 1;
msg.buf = buf;
buf[0] = 0x66;
sc = stm32f4_i2c_process_message(stm32f4_i2c1, &msg);
printf("the write status %d\n", sc);
rtems_task_wake_after(200);
memset(buf, 0, sizeof(buf));
msg.read = true;
msg.len = 1;
msg.buf = buf;
sc = stm32f4_i2c_process_message(stm32f4_i2c1, &msg);
printf("the read status %d\n", sc);
sleep(1);
printf("value is %x\n", buf[0]);
(void) rtems_task_delete( RTEMS_SELF );
}_______________________________________________
users mailing list
users@rtems.org
http://lists.rtems.org/mailman/listinfo/users
