diff options
| -rw-r--r-- | cc3200/mods/pybi2c.c | 2 | ||||
| -rw-r--r-- | docs/library/machine.I2C.rst | 2 | ||||
| -rw-r--r-- | stmhal/i2c.c | 4 |
3 files changed, 4 insertions, 4 deletions
diff --git a/cc3200/mods/pybi2c.c b/cc3200/mods/pybi2c.c index 70153801ef..5022e614f6 100644 --- a/cc3200/mods/pybi2c.c +++ b/cc3200/mods/pybi2c.c @@ -377,7 +377,7 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_i2c_deinit_obj, pyb_i2c_deinit); STATIC mp_obj_t pyb_i2c_scan(mp_obj_t self_in) { pyb_i2c_check_init(&pyb_i2c_obj); mp_obj_t list = mp_obj_new_list(0, NULL); - for (uint addr = 1; addr <= 127; addr++) { + for (uint addr = 0x08; addr <= 0x77; addr++) { for (int i = 0; i < 3; i++) { if (pyb_i2c_scan_device(addr)) { mp_obj_list_append(list, mp_obj_new_int(addr)); diff --git a/docs/library/machine.I2C.rst b/docs/library/machine.I2C.rst index aa1caed209..d04ef5eef5 100644 --- a/docs/library/machine.I2C.rst +++ b/docs/library/machine.I2C.rst @@ -106,7 +106,7 @@ Methods .. method:: i2c.scan() - Scan all I2C addresses from 0x01 to 0x7f and return a list of those that respond. + Scan all I2C addresses between 0x08 and 0x77 inclusive and return a list of those that respond. Only valid when in master mode. Constants diff --git a/stmhal/i2c.c b/stmhal/i2c.c index e52db01704..9f6506b017 100644 --- a/stmhal/i2c.c +++ b/stmhal/i2c.c @@ -475,7 +475,7 @@ STATIC mp_obj_t pyb_i2c_is_ready(mp_obj_t self_in, mp_obj_t i2c_addr_o) { STATIC MP_DEFINE_CONST_FUN_OBJ_2(pyb_i2c_is_ready_obj, pyb_i2c_is_ready); /// \method scan() -/// Scan all I2C addresses from 0x01 to 0x7f and return a list of those that respond. +/// Scan all I2C addresses from 0x08 to 0x77 and return a list of those that respond. /// Only valid when in master mode. STATIC mp_obj_t pyb_i2c_scan(mp_obj_t self_in) { pyb_i2c_obj_t *self = self_in; @@ -486,7 +486,7 @@ STATIC mp_obj_t pyb_i2c_scan(mp_obj_t self_in) { mp_obj_t list = mp_obj_new_list(0, NULL); - for (uint addr = 1; addr <= 127; addr++) { + for (uint addr = 0x08; addr <= 0x77; addr++) { for (int i = 0; i < 10; i++) { HAL_StatusTypeDef status = HAL_I2C_IsDeviceReady(self->i2c, addr << 1, 10, 200); if (status == HAL_OK) { |