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authorFergus Noble2011-09-22 16:09:28 -0700
committerFergus Noble2011-09-22 16:09:28 -0700
commitdb8653b802afcdcfbe71424d1bafcd9584972212 (patch)
tree506433ae8e49e5f91f7a9aa5a052dfd4e00806f7
parent022a18f3143a10dda216fd8c68e6f81a888b6583 (diff)
parent16a481034ff86869d8e4548dfb4b7bf8df2c6f26 (diff)
Merge branch 'stm32f2' of https://github.com/henryhallam/libopenstm32 into stm32f2
-rw-r--r--examples/stm32f2/jobygps/spi_test/Makefile23
-rw-r--r--examples/stm32f2/jobygps/spi_test/spi_test.c122
-rw-r--r--examples/stm32f2/jobygps/spi_test/spi_test.ld31
3 files changed, 176 insertions, 0 deletions
diff --git a/examples/stm32f2/jobygps/spi_test/Makefile b/examples/stm32f2/jobygps/spi_test/Makefile
new file mode 100644
index 0000000..de4c338
--- /dev/null
+++ b/examples/stm32f2/jobygps/spi_test/Makefile
@@ -0,0 +1,23 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## 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 <http://www.gnu.org/licenses/>.
+##
+
+BINARY = spi_test
+
+include ../../Makefile.include
+
diff --git a/examples/stm32f2/jobygps/spi_test/spi_test.c b/examples/stm32f2/jobygps/spi_test/spi_test.c
new file mode 100644
index 0000000..2145165
--- /dev/null
+++ b/examples/stm32f2/jobygps/spi_test/spi_test.c
@@ -0,0 +1,122 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>,
+ * 2011 Piotr Esden-Tempski <piotr@esden.net>
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/stm32/spi.h>
+#include <libopencm3/stm32/usart.h>
+#include <libopencm3/stm32/nvic.h>
+#include <libopencm3/stm32/f2/gpio.h>
+#include <libopencm3/stm32/f2/rcc.h>
+
+#include <stdio.h>
+#include <errno.h>
+
+void clock_setup(void)
+{
+ //rcc_clock_setup_in_hse_8mhz_out_72mhz();
+
+ /* Enable GPIOA clock (for LED GPIOs). */
+ //rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN);
+
+ /* Enable clocks for GPIO port A (for GPIO_USART1_TX) and USART1. */
+ //rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN |
+// RCC_APB2ENR_AFIOEN |
+// RCC_APB2ENR_USART1EN);
+ RCC_APB1ENR |= RCC_APB1ENR_SPI2EN;
+ RCC_APB2ENR |= RCC_APB2ENR_USART1EN;
+ RCC_AHB1ENR |= RCC_AHB1ENR_GPIOCEN | RCC_AHB1ENR_GPIOAEN; // PORT B not enabled...
+
+}
+
+void spi_setup(void)
+{
+ gpio_mode_setup(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO12 | 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);
+
+ /* Finally enable the SPI. */
+ spi_enable(SPI2);
+}
+
+void usart_setup(void)
+{
+ gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO9);
+ //GPIO_MODER(GPIOA) |= GPIO_MODE(9, GPIO_MODE_AF);
+ //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 GPIO6 and 7 (in GPIO port A) 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;
+
+ clock_setup();
+ gpio_setup();
+ usart_setup();
+ spi_setup();
+
+ /*
+ * Write Hello World an integer, float and double all over
+ * again while incrementing the numbers.
+ */
+ while (1) {
+ gpio_toggle(GPIOC, GPIO3);
+ printf("Hello World! %i\r\n", counter);
+ counter++;
+ spi_send(SPI2,(u8)counter);
+ }
+
+ return 0;
+}
diff --git a/examples/stm32f2/jobygps/spi_test/spi_test.ld b/examples/stm32f2/jobygps/spi_test/spi_test.ld
new file mode 100644
index 0000000..7899773
--- /dev/null
+++ b/examples/stm32f2/jobygps/spi_test/spi_test.ld
@@ -0,0 +1,31 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+/* Linker script for Open-BLDC (STM32F103CBT6, 128K flash, 20K RAM). */
+
+/* Define memory regions. */
+MEMORY
+{
+ rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K
+ ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K
+}
+
+/* Include the common ld script. */
+INCLUDE libopencm3_stm32.ld
+