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stmhal: Enable relevant GPIO clock when Pin obj is init'd.

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This commit is contained in:
Damien George 2014-08-06 16:04:57 +01:00
parent 7cc20e7e99
commit 95ea4f0c95
1 changed files with 26 additions and 0 deletions
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26
stmhal/pin.c
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@ -285,6 +285,32 @@ STATIC mp_obj_t pin_obj_init(uint n_args, mp_obj_t *args) {
}
}
// enable the peripheral clock for the port of this pin
switch (self->port) {
case PORT_A: __GPIOA_CLK_ENABLE(); break;
case PORT_B: __GPIOB_CLK_ENABLE(); break;
case PORT_C: __GPIOC_CLK_ENABLE(); break;
case PORT_D: __GPIOD_CLK_ENABLE(); break;
#ifdef __GPIOE_CLK_ENABLE
case PORT_E: __GPIOE_CLK_ENABLE(); break;
#endif
#ifdef __GPIOF_CLK_ENABLE
case PORT_F: __GPIOF_CLK_ENABLE(); break;
#endif
#ifdef __GPIOG_CLK_ENABLE
case PORT_G: __GPIOG_CLK_ENABLE(); break;
#endif
#ifdef __GPIOH_CLK_ENABLE
case PORT_H: __GPIOH_CLK_ENABLE(); break;
#endif
#ifdef __GPIOI_CLK_ENABLE
case PORT_I: __GPIOI_CLK_ENABLE(); break;
#endif
#ifdef __GPIOJ_CLK_ENABLE
case PORT_J: __GPIOJ_CLK_ENABLE(); break;
#endif
}
// configure the GPIO as requested
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.Pin = self->pin_mask;