本帖最后由 电子星辰 于 2018-6-17 21:19 编辑 0 x" t( S% i- `! ~- a s
7 X/ @! v' `* {3 ?; A5 m+ K开发环境:WIN7_64位系统;Keil MDK5;STM32CubeMX。(Java环境(Cube必须))/ v8 E& l& \4 M0 ]& Y, T
1、下载并安装好STM32CubeF0_V1.9.0,USB驱动:STSW_LINK009_V2.0.0。
' A% D. m( [* V9 Q7 Z2、随便找一根MicroUSB的安卓手机线连接Nucleo板和电脑就可以了。
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' W- u, A/ B D# @& }: V上电之后LED1先亮,随后LED2亮起,LED3闪烁。将D2和GND的跳线帽拔掉,LED3闪烁频率加快。
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找到官方的例程代码
, `2 L/ X& J' U, d: W0 [. n2 O...\Repository\STM32Cube_FW_F0_V1.9.0\Projects\STM32F042K6-Nucleo\Examples\GPIO\GPIO_IOToggle9 {" t) O7 ]* U1 Z/ E, m0 |! d) l
这个例程是展示,通过HAL API来配置GPIO的。我觉得例程说明比较像板载的原始代码。$ O- M5 j2 s% r# X0 ^9 ~( p
编译,下载。
: w9 G" ?; Q2 D8 S* f! S下载失败。。。+ j2 a% Y/ N! C, W: Q
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打开设置里-Debug-STLink Debugger的Settings-Flash Download
5 O: ?/ l) c, H* o% _6 F" T$ B点Add,选32K的。" J7 ~$ w1 K; e: I3 L9 u
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# u; l" M5 R9 I1 M, n5 Z好,这次可以了。) T& l8 z0 V4 m5 h1 c- j! ?" M: Q
这时,LED3闪烁频率加快,拔掉跳线帽也对闪烁没有影响。哦豁,下错了。
7 y4 r. f/ h; F& K: s% w1 t( Z附一下例程部分代码:# O3 P( X+ [( r% e
- int main(void)1 J! D+ a2 B1 W, U- Y
- {% u# |! l* j9 o" E. v) j1 |" J
- /* This sample code shows how to use GPIO HAL API to toggle LED3 IO7 N8 s5 q* J$ Y+ G! F
- in an infinite loop. */) i) z8 n6 t; s" u6 J# b( i
6 j2 c/ j* f2 o' [0 `/ B- /* STM32F0xx HAL library initialization:: s e* k# Z/ B& y6 y, j9 g, w+ q
- - Configure the Flash prefetch
6 C% c( U3 g9 L) j- T - - Systick timer is configured by default as source of time base, but user ! Z4 ^# d( q) _, \% L+ W$ h6 h
- can eventually implement his proper time base source (a general purpose
+ V9 T/ x y7 f- O8 w! e - timer for example or other time source), keeping in mind that Time base 3 J- a$ g* N. u" V
- duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and . p2 t: Z6 S' g2 P+ {& q+ Q+ h
- handled in milliseconds basis.7 I& V; W0 `, |3 u( o! ?
- - Low Level Initialization
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- HAL_Init();/ x g! T7 X) l
' o% y4 {& B) f& z- /* Configure the system clock to 48 MHz */. v8 U+ e" g Y
- SystemClock_Config();
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- /* -1- Enable GPIO Clock (to be able to program the configuration registers) */
, b5 y# j: s1 j* _1 J' G2 J - LED3_GPIO_CLK_ENABLE();
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) Q' E, {9 P8 S$ S: v' _- /* -2- Configure IO in output push-pull mode to drive external LEDs */& b/ J: W9 n, X" T: V
- GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;% m+ n' d) b, h! `! A5 E
- GPIO_InitStruct.Pull = GPIO_PULLUP;! T- \7 Z/ r% o( x* |0 o, U/ ^
- GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;' |) [: q' X6 U! h
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- GPIO_InitStruct.Pin = LED3_PIN;2 L. j4 a E9 h' o9 x) ^
- HAL_GPIO_Init(LED3_GPIO_PORT, &GPIO_InitStruct);/ K6 U$ b, B- W; ^1 K, h; S# C
& N* {' ]/ Y ]9 p- y- /* -3- Toggle IO in an infinite loop */
( }, b# }2 i: j, M5 F" A' _" X9 Z - while (1)
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* `$ X! ^: w0 ` - HAL_GPIO_TogglePin(LED3_GPIO_PORT, LED3_PIN);1 u, L Y" ~2 Q
- /* Insert delay 100 ms */
4 K; R% o- r q( C/ b) B' \ - HAL_Delay(100);
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复制代码 好吧,暂时就这样吧。
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