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bluepill: start HAL, update skeleton.

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This commit is contained in:
Kyle Isom
2018-03-07 08:06:25 -08:00
parent 4be849722a
commit 899a1813d1
9 changed files with 201 additions and 8 deletions
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54
blue-pill/draugr/bluepill/gpio.h Normal file
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#ifndef __BLUEPILL_GPIO_H__
#define __BLUEPILL_GPIO_H__
#include <stdint.h>
constexpr volatile unsigned int *PORTA = reinterpret_cast<volatile unsigned int *>(0x40010800);
constexpr volatile unsigned int *PORTB = reinterpret_cast<volatile unsigned int *>(0x40010c00);
constexpr volatile unsigned int *PORTC = reinterpret_cast<volatile unsigned int *>(0x40011000);
constexpr volatile unsigned int *PORTD = reinterpret_cast<volatile unsigned int *>(0x40011400);
constexpr volatile unsigned int *PORTE = reinterpret_cast<volatile unsigned int *>(0x40011800);
class GPIO {
public:
void set_pin(uint32_t pin) { this->BSRR |= ((1 << pin) << 16); }
void clear_pin(uint32_t pin) { this->BSRR |= (1 << pin); }
void output_mode(uint32_t pin, uint32_t mode, uint32_t max) {
if (pin > 7) {
pin = ((pin - 8) * 4);
this->CRH |= (max << pin);
this->CRH |= (mode << (pin + 2));
}
else {
pin *= 4;
this->CRL |= (max << pin);
this->CRL |= (mode << (pin + 2));
}
}
private:
uint32_t CRL; /* configuration register low */
uint32_t CRH; /* configuration register high */
uint32_t IDR; /* input data register */
uint32_t ODR; /* output data register */
uint32_t BSRR; /* bit set / reset register */
uint16_t BRR; /* reset register */
uint32_t LCKR; /* locking register */
};
GPIO *GPIO_A = (GPIO *)PORTA;
GPIO *GPIO_B = (GPIO *)PORTB;
GPIO *GPIO_C = (GPIO *)PORTC;
GPIO *GPIO_D = (GPIO *)PORTD;
GPIO *GPIO_E = (GPIO *)PORTE;
const uint32_t OUTPUT_MAX_2MHZ = 2;
const uint32_t OUTPUT_MAX_10MHZ = 1;
const uint32_t OUTPUT_MAX_50MHZ = 3;
const uint32_t OUTPUT_GPP = 0;
const uint32_t OUTPUT_GOD = 1;
const uint32_t OUTPUT_APP = 2;
const uint32_t OUTPUT_AOD = 3;
#endif // __BLUEPILL_GPIO_H__

6
blue-pill/draugr/bluepill/rcc.h Normal file
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#ifndef __BLUEPILL_RCC_H__
#define __BLUEPILL_RCC_H__
constexpr volatile unsigned int *RCC = reinterpret_cast<volatile unsigned int *>(0x40021000);
#endif // __BLUEPILL_RCC_H__