Mateusz Grzywacz / FastIO

Replacement for regular GPIO (DigitalIn, DigitalOut, DigitalInOut) classes which has superior speed.

Fork of FastIO by Erik -

Devices/FastIO_STM32L073XX.h@23:23a43a288e2c, 2018-04-17 (annotated)

Committer:
amateusz
Date:
Tue Apr 17 13:28:24 2018 +0000
Revision:
23:23a43a288e2c
Parent:
21:a1dfa6c65400 
Added support for STM32L1xx (checked on Nucleo L152). I'm done this solely cross referenced existing STM32 target files with L152 reference manual.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
viquiram 21:a1dfa6c65400 1 #if defined(STM32L073xx)
viquiram 21:a1dfa6c65400 2
viquiram 21:a1dfa6c65400 3 #include "mbed.h"
viquiram 21:a1dfa6c65400 4 #include "pinmap.h"
viquiram 21:a1dfa6c65400 5
viquiram 21:a1dfa6c65400 6 typedef struct {
viquiram 21:a1dfa6c65400 7 uint32_t mask;
viquiram 21:a1dfa6c65400 8 } fastio_vars;
viquiram 21:a1dfa6c65400 9
viquiram 21:a1dfa6c65400 10 #define PINMASK (1 << STM_PIN(pin))
viquiram 21:a1dfa6c65400 11 #define PORT ((GPIO_TypeDef *)(GPIOA_BASE + 0x0400 * STM_PORT(pin)))
viquiram 21:a1dfa6c65400 12
amateusz 23:23a43a288e2c 13
viquiram 21:a1dfa6c65400 14 #define INIT_PIN RCC->IOPENR |= (1 << STM_PORT(pin)); (PORT->MODER &= ~(GPIO_MODER_MODE0_1 << (STM_PIN(pin) * 2))); container.mask = PINMASK
viquiram 21:a1dfa6c65400 15 #define DESTROY_PIN
viquiram 21:a1dfa6c65400 16
viquiram 21:a1dfa6c65400 17 #define SET_DIR_INPUT (PORT->MODER &= ~(GPIO_MODER_MODE0_0 << (STM_PIN(pin) * 2)))
viquiram 21:a1dfa6c65400 18 #define SET_DIR_OUTPUT (PORT->MODER |= (GPIO_MODER_MODE0_0 << (STM_PIN(pin) * 2)))
viquiram 21:a1dfa6c65400 19 #define SET_MODE(pull) pin_mode(pin, pull);
viquiram 21:a1dfa6c65400 20
viquiram 21:a1dfa6c65400 21 #define WRITE_PIN_SET (PORT->BSRR = PINMASK)
viquiram 21:a1dfa6c65400 22 #define WRITE_PIN_CLR (PORT->BRR = PINMASK)
viquiram 21:a1dfa6c65400 23
viquiram 21:a1dfa6c65400 24 #define READ_PIN ((PORT->IDR & container.mask) ? 1 : 0)
viquiram 21:a1dfa6c65400 25
viquiram 21:a1dfa6c65400 26 #endif