Fix calculation of bit-weight for reset pin

jepler · jepler · commit 6990c37320d3 · 2023-09-26T08:33:00.000-05:00
diff --git a/shared-bindings/dotclockframebuffer/__init__.c b/shared-bindings/dotclockframebuffer/__init__.c
@@ -126,7 +126,7 @@ STATIC mp_obj_t ioexpander_send_init_sequence(size_t n_args, const mp_obj_t *pos
     mp_int_t reset_mask = 0;
     if (args[ARG_reset_bit].u_obj != MP_ROM_NONE) {
         mp_int_t reset_bit = mp_arg_validate_int_range(mp_arg_validate_type_int(args[ARG_reset_bit].u_obj, MP_QSTR_reset_bit), 0, max_bit, MP_QSTR_reset_bit);
-        reset_mask = (1 << reset_bit);
+        reset_mask = 0x100 << reset_bit;
     }
 
     mp_buffer_info_t bufinfo_i2c_init_sequence = {};

Original file line number	Diff line number	Diff line change
`@@ -126,7 +126,7 @@ STATIC mp_obj_t ioexpander_send_init_sequence(size_t n_args, const mp_obj_t *pos`
`126`	`126`	`mp_int_t reset_mask = 0;`
`127`	`127`	`if (args[ARG_reset_bit].u_obj != MP_ROM_NONE) {`
`128`	`128`	`mp_int_t reset_bit = mp_arg_validate_int_range(mp_arg_validate_type_int(args[ARG_reset_bit].u_obj, MP_QSTR_reset_bit), 0, max_bit, MP_QSTR_reset_bit);`
`129`		`- reset_mask = (1 << reset_bit);`
	`129`	`+ reset_mask = 0x100 << reset_bit;`
`130`	`130`	`}`
`131`	`131`
`132`	`132`	`mp_buffer_info_t bufinfo_i2c_init_sequence = {};`