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the code equivalent of smacking something really hard with a wrench

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This commit is contained in:
Hierophect 2019-09-19 16:10:26 -04:00
parent b325eadc33
commit c12860ff7d
1 changed files with 16 additions and 15 deletions
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31
ports/stm32f4/common-hal/busio/I2C.c
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@ -35,21 +35,6 @@
#include "common-hal/microcontroller/Pin.h"
void i2c_reset(void) {
#ifdef I2C1
__HAL_RCC_I2C1_FORCE_RESET();
HAL_Delay(2);
__HAL_RCC_I2C1_RELEASE_RESET();
#endif
#ifdef I2C2
__HAL_RCC_I2C2_FORCE_RESET();
HAL_Delay(2);
__HAL_RCC_I2C2_RELEASE_RESET();
#endif
#ifdef I2C3
__HAL_RCC_I2C3_FORCE_RESET();
HAL_Delay(2);
__HAL_RCC_I2C3_RELEASE_RESET();
#endif
}
void common_hal_busio_i2c_construct(busio_i2c_obj_t *self,
@ -100,6 +85,22 @@ void common_hal_busio_i2c_construct(busio_i2c_obj_t *self,
GPIO_InitStruct.Alternate = self->scl->altfn_index;
HAL_GPIO_Init(pin_port(scl->port), &GPIO_InitStruct);
#ifdef I2C1
__HAL_RCC_I2C1_FORCE_RESET();
HAL_Delay(2);
__HAL_RCC_I2C1_RELEASE_RESET();
#endif
#ifdef I2C2
__HAL_RCC_I2C2_FORCE_RESET();
HAL_Delay(2);
__HAL_RCC_I2C2_RELEASE_RESET();
#endif
#ifdef I2C3
__HAL_RCC_I2C3_FORCE_RESET();
HAL_Delay(2);
__HAL_RCC_I2C3_RELEASE_RESET();
#endif
#ifdef I2C1
if(I2Cx==I2C1) __HAL_RCC_I2C1_CLK_ENABLE();
#endif