uart
This commit is contained in:
parent
cdd61312bf
commit
dcc1e2161b
2
.gitignore
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2
.gitignore
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@ -1 +1,3 @@
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build
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STM32F439.svd
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putty_run
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18
.vscode/launch.json
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18
.vscode/launch.json
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{
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"version": "0.2.0",
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"configurations": [
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{
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"name": "Cortex Debug",
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"cwd": "${workspaceFolder}",
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"executable": "${workspaceRoot}/build/stm32.elf",
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"request": "launch",
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"type": "cortex-debug",
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"runToEntryPoint": "main",
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"servertype": "stutil",
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"preLaunchTask" : "run OpenOCD",
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"preRestartCommands" : [ "load", "enable breakpoint", "monitor reset" ],
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"showDevDebugOutput" : "raw",
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"svdFile" : "${workspaceRoot}/STM32F439.svd"
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}
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]
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}
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117
.vscode/tasks.json
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117
.vscode/tasks.json
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@ -39,48 +39,85 @@
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}
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},
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{
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"label": "clean",
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"type": "shell",
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"command": "rm",
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"args": [
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"-rf",
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"${workspaceFolder}/build"
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],
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"options": {
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"cwd": "${workspaceFolder}"
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},
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"group": {
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"kind": "build",
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"isDefault": true
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}
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},
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"label": "clean",
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"type": "shell",
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"command": "rm",
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"args": [
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"-rf",
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"${workspaceFolder}/build"
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],
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"options": {
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"cwd": "${workspaceFolder}"
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},
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"group": {
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"kind": "build",
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"isDefault": true
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}
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},
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{
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"label": "flash",
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"type": "shell",
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"command": "openocd",
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"args": [
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"-f",
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"interface/stlink-v2.cfg",
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"label": "flash",
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"type": "shell",
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"command": "openocd",
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"args": [
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"-f",
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"interface/stlink-v2.cfg",
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"-f",
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"target/stm32f4x.cfg",
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"-c",
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"init",
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"-c",
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"reset halt",
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"-c",
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"flash write_image erase ${workspaceFolder}/build/stm32.elf",
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"-c",
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"reset",
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"-c",
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"exit"
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],
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"group": {
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"kind": "build",
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"isDefault": true
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},
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"problemMatcher": [
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"$gcc"
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]
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}
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"-c",
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"init",
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"-c",
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"reset halt",
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"-c",
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"flash write_image erase ${workspaceFolder}/build/stm32.hex",
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"-c",
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"reset",
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"-c",
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"exit"
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],
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"group": {
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"kind": "build",
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"isDefault": true
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},
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"problemMatcher": [
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"$gcc"
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]
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},
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{
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"label": "run OpenOCD",
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"type": "shell",
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"command": "openocd",
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"args": [
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"-f",
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"interface/stlink-v2.cfg",
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"-f",
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"target/stm32f4x.cfg"
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],
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"group": {
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"kind": "build",
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"isDefault": true
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},
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"problemMatcher": [
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"$gcc"
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],
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"isBackground": true
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},
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{
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"label": "gdb",
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"type": "shell",
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"command": "gdb",
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"args": [
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"${workspaceFolder}/build/stm32.elf",
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"-ex",
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"target remote :3333"
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],
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"group": {
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"kind": "build",
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"isDefault": true
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},
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"problemMatcher": [],
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"dependsOn": [
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"run OpenOCD"
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]
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},
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]
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}
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@ -40,6 +40,7 @@ file(GLOB_RECURSE SOURCES
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"startup_stm32f4xx.S"
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"lib/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_gpio.c"
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"lib/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_rcc.c"
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"lib/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_usart.c"
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)
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set(LINKER_SCRIPT ${PROJECT_SOURCE_DIR}/stm32_flash.ld)
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25
app/app.c
25
app/app.c
@ -1,29 +1,32 @@
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#include "app.h"
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const uint16_t leds = GPIO_Pin_0 | GPIO_Pin_7 | GPIO_Pin_14;
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const uint16_t leds_arr[4] = {GPIO_Pin_0, GPIO_Pin_7, GPIO_Pin_14};
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void delay(uint32_t ms) {
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ms *= 3360;
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ms *= 16800;
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while(ms--) {
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__NOP();
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}
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}
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void loop() {
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static uint32_t counter = 0;
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GPIO_ToggleBits(GPIOB, GPIO_Pin_7);
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++counter;
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GPIO_ResetBits(GPIOB, leds);
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GPIO_SetBits(GPIOB, leds_arr[counter % 3]);
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delay(250);
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delay(500);
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}
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void app() {
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volatile uint8_t sendData[8];
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volatile uint8_t bytesToSend = 8;
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// Счетчик отправленных байт
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volatile uint8_t sendDataCounter = 0;
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for (uint8_t i = 0; i < 8; i++)
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{
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sendData[i] = i;
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}
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// USART_ITConfig(USART2, USART_IT_TC, ENABLE);
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while(1) {
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USART_SendData(USART2, sendData[sendDataCounter++ % 8]);
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loop();
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};
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}
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91
bsp/bsp.c
91
bsp/bsp.c
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#include "bsp.h"
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const uint16_t LEDS = GPIO_Pin_0 | GPIO_Pin_7 | GPIO_Pin_14;
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const uint16_t LED[4] = {GPIO_Pin_0, GPIO_Pin_7, GPIO_Pin_14};
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void board_init() {
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#define PLL_M 4
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#define PLL_N 168
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/* SYSCLK = PLL_VCO / PLL_P */
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#define PLL_P 2
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/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
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#define PLL_Q 7
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void SysTick_Handler(void)
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{
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//GPIO_ToggleBits(GPIOB, GPIO_Pin_0);
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}
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void USART2_IRQHandler()
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{
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}
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void sysTick_init(void) {
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uint32_t tick = SystemCoreClock/2 - 1;
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SysTick->LOAD = tick;
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SysTick->VAL = tick;
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SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_TICKINT_Msk | SysTick_CTRL_ENABLE_Msk;
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}
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void systemClock_init(void) {
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RCC_DeInit(); // Reset RCC configuration to default values
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RCC_HSEConfig(RCC_HSE_ON); // Enable HSE (High Speed External) clock
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if (RCC_WaitForHSEStartUp() == SUCCESS) { // Wait for HSE clock to stabilize
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RCC_PLLConfig(RCC_PLLSource_HSE, PLL_M, PLL_N, PLL_P, PLL_Q); // Configure PLL
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RCC_PLLCmd(ENABLE); // Enable PLL
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while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET); // Wait for PLL to stabilize
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FLASH->ACR = FLASH_ACR_ICEN |FLASH_ACR_DCEN |FLASH_ACR_LATENCY_5WS;
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RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); // Set PLL as system clock
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while (RCC_GetSYSCLKSource() != RCC_CFGR_SWS_PLL); // Wait for PLL to become system clock
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}
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}
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void gpio_init() {
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const uint16_t led_pins = GPIO_Pin_0 | GPIO_Pin_7 | GPIO_Pin_14;
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const uint16_t usart_pins = GPIO_Pin_5 | GPIO_Pin_6;
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RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
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RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD, ENABLE);
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GPIO_InitTypeDef gpio;
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GPIO_StructInit(&gpio);
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gpio.GPIO_Mode = GPIO_Mode_OUT;
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gpio.GPIO_Pin = LEDS;
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gpio.GPIO_Pin = led_pins;
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GPIO_Init(GPIOB, &gpio);
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GPIO_ResetBits(GPIOB, led_pins);
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gpio.GPIO_Mode = GPIO_Mode_AF;
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gpio.GPIO_Pin = usart_pins;
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gpio.GPIO_Speed = GPIO_Speed_50MHz;
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gpio.GPIO_OType = GPIO_OType_PP;
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gpio.GPIO_PuPd = GPIO_PuPd_UP;
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GPIO_Init(GPIOD, &gpio);
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GPIO_PinAFConfig(GPIOD, GPIO_PinSource5, GPIO_AF_USART2);
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GPIO_PinAFConfig(GPIOD, GPIO_PinSource6, GPIO_AF_USART2);
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}
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void usart_init() {
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
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USART_InitTypeDef usart;
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usart.USART_BaudRate = 115200;
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usart.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
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USART_Init(USART2, &usart);
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USART_Cmd(USART2, ENABLE);
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//NVIC_EnableIRQ(USART2_IRQn);
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}
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void board_init() {
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SystemInit();
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//systemClock_init();
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sysTick_init();
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//__enable_irq();
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gpio_init();
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usart_init();
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GPIO_SetBits(GPIOB, LEDS);
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}
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@ -1,4 +0,0 @@
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telnet localhost 4444
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reset halt
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flash write_image erase stm32.hex
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reset
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openocd -f interface/stlink-v2.cfg -f target/stm32f4x.cfg
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@ -150,7 +150,7 @@
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#define PLL_N 336
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/* SYSCLK = PLL_VCO / PLL_P */
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#define PLL_P 4
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#define PLL_P 2
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/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
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#define PLL_Q 7
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