About berker_isik

I would like to explain a question that I think I cannot explain the problem as code. I'm sorry for asking a new question. I am reading accelerometer and gyroscope correctly, but i can't read magnetomer. I read 0x00.  Is there anyone who can help with this problem?  Accelerometer  pin_set(bmx_cs1); pin_set(bmx_cs2); pin_set(bmx_cs3); select_bmx_acc(); //MISO=MISO1 wait_delay(100); uint8_t bmx_id=0; pin_clear(bmx_cs1); wait_delay(100000); bmx_id=spi_read(0x00); wait_delay(1000); pin_set(bmx_cs1); wait_delay(100000); Gyro pin_set(bmx_cs1); pin_set(bmx_cs2); pin_set(bmx_cs3); select_bmx_gyro();//MISO=MISO2 wait_delay(100); uint8_t bmx_gyro_id=0; pin_clear(bmx_cs2); wait_delay(100000); bmx_gyro_id=spi_read(0x00); wait_delay(1000); pin_set(bmx_cs2); wait_delay(100000); Magnetometer pin_set(bmx_cs1); pin_set(bmx_cs2); pin_set(bmx_cs3); select_bmx_acc(); //MISO=MISO1 wait_delay(100); //wake-up first pin_clear(bmx_cs3); wait_delay(100000); spi_write(0x4B,0x01); wait_delay(1000); pin_set(bmx_cs3); wait_delay(100000);   uint8_t bmx_manyetik_id=0; pin_clear(bmx_cs3); wait_delay(100000); bmx_manyetik_id=spi_read(0x40); wait_delay(1000); pin_set(bmx_cs3); wait_delay(100000);   ... View more

Hi, I use BMX055 in a project. Acc and Gyro has been work seamlessly for about 3 months. I need to read magnetometer now. But, I didn't read Chip ID register(0x40). I use CS3(20), Miso1(17), Mosi(11), Clk(9) pins. I probed pins with oscilloscope, there're no problem except Mosi that always 0x00. I read in firmware 0x00 too. Before reading it, i try to write 0x4B register with 0x83. But ID value i read again 0x00. Is there an additional register setting that I forgot to do? write(0x4B,0x83) id=read(0x40) => returns 0x00 ... View more