stm32/accel: Fix Accel.read() method so it does read a byte.

dpgeorge · dpgeorge · commit 69b238ec63b8 · 2019-10-18T11:53:34.000+11:00
This bug was introduced in a0f7b4c
diff --git a/ports/stm32/accel.c b/ports/stm32/accel.c
@@ -255,7 +255,7 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_accel_filtered_xyz_obj, pyb_accel_filtered_
 STATIC mp_obj_t pyb_accel_read(mp_obj_t self_in, mp_obj_t reg) {
     uint8_t data[1] = { mp_obj_get_int(reg) };
     i2c_writeto(I2C1, ACCEL_ADDR, data, 1, false);
-    i2c_writeto(I2C1, ACCEL_ADDR, data, 1, true);
+    i2c_readfrom(I2C1, ACCEL_ADDR, data, 1, true);
     return mp_obj_new_int(data[0]);
 }
 MP_DEFINE_CONST_FUN_OBJ_2(pyb_accel_read_obj, pyb_accel_read);

Original file line number	Diff line number	Diff line change
`@@ -255,7 +255,7 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_accel_filtered_xyz_obj, pyb_accel_filtered_`
`255`	`255`	`STATIC mp_obj_t pyb_accel_read(mp_obj_t self_in, mp_obj_t reg) {`
`256`	`256`	`uint8_t data[1] = { mp_obj_get_int(reg) };`
`257`	`257`	`i2c_writeto(I2C1, ACCEL_ADDR, data, 1, false);`
`258`		`- i2c_writeto(I2C1, ACCEL_ADDR, data, 1, true);`
	`258`	`+ i2c_readfrom(I2C1, ACCEL_ADDR, data, 1, true);`
`259`	`259`	`return mp_obj_new_int(data[0]);`
`260`	`260`	`}`
`261`	`261`	`MP_DEFINE_CONST_FUN_OBJ_2(pyb_accel_read_obj, pyb_accel_read);`