diff options
Diffstat (limited to 'tests/i2c-master/main-stm32f072-disco.c')
| -rw-r--r-- | tests/i2c-master/main-stm32f072-disco.c | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/tests/i2c-master/main-stm32f072-disco.c b/tests/i2c-master/main-stm32f072-disco.c deleted file mode 100644 index 41a4902..0000000 --- a/tests/i2c-master/main-stm32f072-disco.c +++ /dev/null @@ -1,104 +0,0 @@ -/* - * Copyright (C) 2017 Karl Palsson <karlp@tweak.net.au> - */ - -#include <libopencm3/cm3/nvic.h> -#include <libopencm3/stm32/crs.h> -#include <libopencm3/stm32/gpio.h> -#include <libopencm3/stm32/i2c.h> -#include <libopencm3/stm32/rcc.h> -#include <libopencm3/stm32/usart.h> - -#include <stdio.h> -#include "hw.h" -#include "i2c-master.h" - -#define LED_DISCO_GREEN_PORT GPIOC -#define LED_DISCO_GREEN_PIN GPIO9 - - - -struct hw_detail hw_details = { - .periph = I2C1, - .periph_rcc = RCC_I2C1, - .periph_rst = RST_I2C1, - .pins = GPIO8 | GPIO9, /* our external i2c device on I2c1 */ - .port = GPIOB, - .port_rcc = RCC_GPIOB, - .trigger_rcc = RCC_GPIOB, - .trigger_port = GPIOB, - .trigger_pin = GPIO12, - .i2c_clock_megahz = 48, -}; - - -static -void setup_usart(void) -{ - uint32_t dev = USART1; - rcc_periph_clock_enable(RCC_USART1); - rcc_periph_clock_enable(RCC_GPIOA); - gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO9); - gpio_set_af(GPIOA, GPIO_AF1, GPIO9); - - usart_set_baudrate(dev, 115200); - usart_set_databits(dev, 8); - usart_set_parity(dev, USART_PARITY_NONE); - usart_set_stopbits(dev, USART_CR2_STOPBITS_1); - usart_set_mode(dev, USART_MODE_TX); - usart_set_flow_control(dev, USART_FLOWCONTROL_NONE); - - /* Finally enable the USART. */ - usart_enable(dev); -} - -/** - * Setup any gpios or anything hardware specific. - * Should _only_ be things that can't be done in shared i2cm_init! - */ -static void i2cm_hw_init(void) -{ - /* trigger pin gpio */ - rcc_periph_clock_enable(hw_details.trigger_rcc); - gpio_mode_setup(hw_details.trigger_port, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, hw_details.trigger_pin); - - /* i2c control lines */ - rcc_periph_clock_enable(hw_details.port_rcc); - gpio_mode_setup(hw_details.port, GPIO_MODE_AF, GPIO_PUPD_NONE, hw_details.pins); - gpio_set_output_options(hw_details.port, GPIO_OTYPE_OD, GPIO_OSPEED_HIGH, hw_details.pins); - gpio_set_af(hw_details.port, GPIO_AF1, hw_details.pins); - - /* select sysclk as i2c clock! */ - RCC_CFGR3 |= RCC_CFGR3_I2C1SW; -} - - -static void setup(void) -{ - setup_usart(); - printf("hi guys!\n"); - i2cm_hw_init(); - i2cm_init(); -} - -int main(void) -{ - int i; - rcc_clock_setup_in_hsi48_out_48mhz(); - /* green led for ticking */ - rcc_periph_clock_enable(RCC_GPIOC); - gpio_mode_setup(LED_DISCO_GREEN_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, LED_DISCO_GREEN_PIN); - gpio_set(LED_DISCO_GREEN_PORT, LED_DISCO_GREEN_PIN); - - setup(); - - while (1) { - i2cm_task(); - gpio_toggle(LED_DISCO_GREEN_PORT, LED_DISCO_GREEN_PIN); - for (i = 0; i < 0x800000; i++) { /* Wait a bit. */ - __asm__("NOP"); - } - } - -} - |