diff options
Diffstat (limited to 'stmhal/accel.c')
| -rw-r--r-- | stmhal/accel.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/stmhal/accel.c b/stmhal/accel.c index 339a93ea40..9890aa3c7f 100644 --- a/stmhal/accel.c +++ b/stmhal/accel.c @@ -12,6 +12,8 @@ #include "i2c.h" #include "accel.h" +#if MICROPY_HW_HAS_MMA7660 + #define MMA_ADDR (0x98) #define MMA_REG_X (0) #define MMA_REG_Y (1) @@ -33,7 +35,15 @@ void accel_init(void) { } STATIC void accel_start(void) { - // start the I2C bus + // start the I2C bus in master mode + I2CHandle1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; + I2CHandle1.Init.ClockSpeed = 400000; + I2CHandle1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; + I2CHandle1.Init.DutyCycle = I2C_DUTYCYCLE_16_9; + I2CHandle1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; + I2CHandle1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; + I2CHandle1.Init.OwnAddress1 = PYB_I2C_MASTER_ADDRESS; + I2CHandle1.Init.OwnAddress2 = 0xfe; // unused i2c_init(&I2CHandle1); // turn off AVDD, wait 20ms, turn on AVDD, wait 20ms again @@ -174,3 +184,5 @@ const mp_obj_type_t pyb_accel_type = { .make_new = pyb_accel_make_new, .locals_dict = (mp_obj_t)&pyb_accel_locals_dict, }; + +#endif // MICROPY_HW_HAS_MMA7660 |