Rename F1 examples folder.
This commit is contained in:
Fergus Noble
committed by
Stephen Caudle
Stephen Caudle
parent
ce7dd46aef
commit
cff706e3ca
23
examples/stm32f1/stm32-h103/usart/Makefile
Normal file
23
examples/stm32f1/stm32-h103/usart/Makefile
Normal file
@@ -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 = usart
|
||||
|
||||
include ../../Makefile.include
|
||||
|
||||
13
examples/stm32f1/stm32-h103/usart/README
Normal file
13
examples/stm32f1/stm32-h103/usart/README
Normal file
@@ -0,0 +1,13 @@
|
||||
------------------------------------------------------------------------------
|
||||
README
|
||||
------------------------------------------------------------------------------
|
||||
|
||||
This example program sends some characters on USART3 on the ST STM32-based
|
||||
Olimex STM32-H103 eval board (see http://olimex.com/dev/stm32-h103.html
|
||||
for details).
|
||||
|
||||
The terminal settings for the receiving device/PC are 38400 8n1.
|
||||
|
||||
The sending is done in a blocking way in the code, see the usart_irq example
|
||||
for a more elaborate USART example.
|
||||
|
||||
119
examples/stm32f1/stm32-h103/usart/usart.c
Normal file
119
examples/stm32f1/stm32-h103/usart/usart.c
Normal file
@@ -0,0 +1,119 @@
|
||||
/*
|
||||
* 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/>.
|
||||
*/
|
||||
|
||||
#include <libopencm3/stm32/rcc.h>
|
||||
#include <libopencm3/stm32/gpio.h>
|
||||
#include <libopencm3/stm32/usart.h>
|
||||
|
||||
void clock_setup(void)
|
||||
{
|
||||
rcc_clock_setup_in_hse_8mhz_out_72mhz();
|
||||
|
||||
/* Enable GPIOC clock. */
|
||||
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPBEN | RCC_APB2ENR_IOPCEN);
|
||||
|
||||
/* Enable clocks for GPIO port B (for GPIO_USART3_TX) and USART3. */
|
||||
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_USART1EN);
|
||||
rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USART2EN | RCC_APB1ENR_USART3EN);
|
||||
}
|
||||
|
||||
void usart_setup(void)
|
||||
{
|
||||
/* Setup GPIO pin GPIO_USART1_TX. */
|
||||
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
|
||||
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX);
|
||||
|
||||
/* Setup UART parameters. */
|
||||
usart_set_baudrate(USART1, 38400);
|
||||
usart_set_databits(USART1, 8);
|
||||
usart_set_stopbits(USART1, USART_STOPBITS_1);
|
||||
usart_set_mode(USART1, USART_MODE_TX);
|
||||
usart_set_parity(USART1, USART_PARITY_NONE);
|
||||
usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
|
||||
|
||||
/* Finally enable the USART. */
|
||||
usart_enable(USART1);
|
||||
|
||||
/* Setup GPIO pin GPIO_USART2_TX. */
|
||||
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
|
||||
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART2_TX);
|
||||
|
||||
/* Setup UART parameters. */
|
||||
usart_set_baudrate(USART2, 38400);
|
||||
usart_set_databits(USART2, 8);
|
||||
usart_set_stopbits(USART2, USART_STOPBITS_1);
|
||||
usart_set_mode(USART2, USART_MODE_TX);
|
||||
usart_set_parity(USART2, USART_PARITY_NONE);
|
||||
usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE);
|
||||
|
||||
/* Finally enable the USART. */
|
||||
usart_enable(USART2);
|
||||
|
||||
/* Setup GPIO pin GPIO_USART3_TX/GPIO10 on GPIO port B for transmit. */
|
||||
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ,
|
||||
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART3_TX);
|
||||
|
||||
/* Setup UART parameters. */
|
||||
usart_set_baudrate(USART3, 38400);
|
||||
usart_set_databits(USART3, 8);
|
||||
usart_set_stopbits(USART3, USART_STOPBITS_1);
|
||||
usart_set_mode(USART3, USART_MODE_TX);
|
||||
usart_set_parity(USART3, USART_PARITY_NONE);
|
||||
usart_set_flow_control(USART3, USART_FLOWCONTROL_NONE);
|
||||
|
||||
/* Finally enable the USART. */
|
||||
usart_enable(USART3);
|
||||
}
|
||||
|
||||
void gpio_setup(void)
|
||||
{
|
||||
/* Set GPIO12 (in GPIO port C) to 'output push-pull'. */
|
||||
gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ,
|
||||
GPIO_CNF_OUTPUT_PUSHPULL, GPIO12);
|
||||
}
|
||||
|
||||
int main(void)
|
||||
{
|
||||
int i, j = 0, c = 0;
|
||||
|
||||
clock_setup();
|
||||
gpio_setup();
|
||||
usart_setup();
|
||||
|
||||
/* Blink the LED (PC12) on the board with every transmitted byte. */
|
||||
while (1) {
|
||||
gpio_toggle(GPIOC, GPIO12); /* LED on/off */
|
||||
usart_send_blocking(USART1, c + '0'); /* USART1: Send byte. */
|
||||
usart_send_blocking(USART2, c + '0'); /* USART2: Send byte. */
|
||||
usart_send_blocking(USART3, c + '0'); /* USART3: Send byte. */
|
||||
c = (c == 9) ? 0 : c + 1; /* Increment c. */
|
||||
if ((j++ % 80) == 0) { /* Newline after line full. */
|
||||
usart_send_blocking(USART1, '\r');
|
||||
usart_send_blocking(USART1, '\n');
|
||||
usart_send_blocking(USART2, '\r');
|
||||
usart_send_blocking(USART2, '\n');
|
||||
usart_send_blocking(USART3, '\r');
|
||||
usart_send_blocking(USART3, '\n');
|
||||
}
|
||||
for (i = 0; i < 800000; i++) /* Wait a bit. */
|
||||
__asm__("NOP");
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
31
examples/stm32f1/stm32-h103/usart/usart.ld
Normal file
31
examples/stm32f1/stm32-h103/usart/usart.ld
Normal file
@@ -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 Olimex STM32-H103 (STM32F103RBT6, 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
|
||||
|
||||
Reference in New Issue
Block a user