From 580d25a84baaa160b0afdc096e9aa1e8ca1c2d2b Mon Sep 17 00:00:00 2001 From: Stephen Caudle Date: Mon, 31 Oct 2011 00:16:37 -0400 Subject: Move STM32 example projects in family specific folders --- examples/stm32/f2/jobygps/spi_test/Makefile | 23 +++++ examples/stm32/f2/jobygps/spi_test/spi_test.c | 113 +++++++++++++++++++++++++ examples/stm32/f2/jobygps/spi_test/spi_test.ld | 31 +++++++ 3 files changed, 167 insertions(+) create mode 100644 examples/stm32/f2/jobygps/spi_test/Makefile create mode 100644 examples/stm32/f2/jobygps/spi_test/spi_test.c create mode 100644 examples/stm32/f2/jobygps/spi_test/spi_test.ld (limited to 'examples/stm32/f2/jobygps/spi_test') diff --git a/examples/stm32/f2/jobygps/spi_test/Makefile b/examples/stm32/f2/jobygps/spi_test/Makefile new file mode 100644 index 0000000..de4c338 --- /dev/null +++ b/examples/stm32/f2/jobygps/spi_test/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = spi_test + +include ../../Makefile.include + diff --git a/examples/stm32/f2/jobygps/spi_test/spi_test.c b/examples/stm32/f2/jobygps/spi_test/spi_test.c new file mode 100644 index 0000000..f1ce719 --- /dev/null +++ b/examples/stm32/f2/jobygps/spi_test/spi_test.c @@ -0,0 +1,113 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2011 Fergus Noble + * Copyright (C) 2011 Henry Hallam + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include + +#include +#include + +void clock_setup(void) +{ + RCC_APB1ENR |= RCC_APB1ENR_SPI2EN; + RCC_APB2ENR |= RCC_APB2ENR_USART1EN; + RCC_AHB1ENR |= RCC_AHB1ENR_IOPCEN | RCC_AHB1ENR_IOPAEN | RCC_AHB1ENR_IOPBEN; + +} + +void spi_setup(void) +{ + gpio_mode_setup(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO13 | GPIO14 | GPIO15); + gpio_set_af(GPIOB, GPIO_AF5, GPIO13 | GPIO14 | GPIO15); + + /* Setup SPI parameters. */ + spi_init_master(SPI2, SPI_CR1_BAUDRATE_FPCLK_DIV_256, SPI_CR1_CPOL, \ + SPI_CR1_CPHA, SPI_CR1_DFF_8BIT, SPI_CR1_MSBFIRST); + spi_enable_ss_output(SPI2); /* Required, see 25.3.1 section about NSS */ + + /* Finally enable the SPI. */ + spi_enable(SPI2); +} + +void usart_setup(void) +{ + gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO9); + gpio_set_af(GPIOA, GPIO_AF7, GPIO9|GPIO10); + + /* Setup UART parameters. */ + usart_set_baudrate(USART1, 9600, 16000000); + usart_set_databits(USART1, 8); + usart_set_stopbits(USART1, USART_STOPBITS_1); + usart_set_parity(USART1, USART_PARITY_NONE); + usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE); + usart_set_mode(USART1, USART_MODE_TX); + + /* Finally enable the USART. */ + usart_enable(USART1); +} + +void gpio_setup(void) +{ + gpio_set(GPIOC, GPIO3); + + /* Setup GPIO3 (in GPIO port C) for led use. */ + gpio_mode_setup(GPIOC, GPIO_MODE_OUTPUT, + GPIO_MODE_OUTPUT, GPIO3); +} + +int _write (int file, char *ptr, int len) +{ + int i; + + if (file == 1) { + for (i = 0; i < len; i++){ + usart_send_blocking(USART1, ptr[i]); + } + return i; + } + errno = EIO; + return -1; +} + +int main(void) +{ + int counter = 0; + volatile u16 dummy; + + clock_setup(); + gpio_setup(); + usart_setup(); + spi_setup(); + + while (1) + { + counter++; + printf("Hello, world! %i\r\n", counter); + dummy = spi_read(SPI2); /* Stops RX buff overflow, but probably not needed */ + spi_send(SPI2,(u8)counter); + gpio_toggle(GPIOC, GPIO3); + } + + while(1); + return 0; +} diff --git a/examples/stm32/f2/jobygps/spi_test/spi_test.ld b/examples/stm32/f2/jobygps/spi_test/spi_test.ld new file mode 100644 index 0000000..cfe9ab7 --- /dev/null +++ b/examples/stm32/f2/jobygps/spi_test/spi_test.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 256K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 64K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f2.ld + -- cgit v1.2.3