本帖最后由 电子星辰 于 2018-6-17 21:19 编辑 : {& ]8 {3 |: Z9 r1 Y' B7 {1 f4 d
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开发环境:WIN7_64位系统;Keil MDK5;STM32CubeMX。(Java环境(Cube必须))
# q. P) l6 U0 d8 |2 i1、下载并安装好STM32CubeF0_V1.9.0,USB驱动:STSW_LINK009_V2.0.0。 p4 \7 I- [/ R- _! h0 F2 g3 l
2、随便找一根MicroUSB的安卓手机线连接Nucleo板和电脑就可以了。5 a4 `5 `" D6 m/ S9 I& Y5 D
6 D4 v) [9 s5 l) ^, k5 \; c" E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5 l2 n* `; A! q. D
...\Repository\STM32Cube_FW_F0_V1.9.0\Projects\STM32F042K6-Nucleo\Examples\GPIO\GPIO_IOToggle" X9 L( V+ m/ a
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。
" N+ y/ y8 e3 P& V! q$ G编译,下载。
& `% A/ V/ z0 T0 ]下载失败。。。
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1 `3 n4 n- ^8 v+ r: s打开设置里-Debug-STLink Debugger的Settings-Flash Download. _1 X$ }# u9 C; J. x/ U) D/ ?6 `# ?
点Add,选32K的。/ c9 Q5 U' j4 l5 O: K5 d4 c: |
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6 d4 y( x: b( b" P8 K, j& n好,这次可以了。
. `) w0 o. b4 a7 _/ 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。; D( v) C' @1 f, p3 L
附一下例程部分代码:
! l# p K5 X' N3 x0 H2 z- int main(void) d6 m P7 w! ~, p
- {' K! ]/ [, ~8 }
- /* This sample code shows how to use GPIO HAL API to toggle LED3 IO8 K/ k" T' ~, f) A; {
- in an infinite loop. */
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- /* STM32F0xx HAL library initialization:( U( k* ]3 o9 m6 a. a
- - Configure the Flash prefetch
* B) C1 ]; |; p1 B9 x8 j - - Systick timer is configured by default as source of time base, but user
5 f# q- t5 m. i4 x" @2 |* j - can eventually implement his proper time base source (a general purpose
, o( w1 e# Z* A - timer for example or other time source), keeping in mind that Time base ( f, o- L* p3 E \. P4 R
- duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and % c# Z" U0 C F8 U& W7 I
- handled in milliseconds basis." B4 m# s5 o3 ?+ X: \
- - Low Level Initialization2 ^+ w; W# X5 L. x1 M8 y0 O+ |
- */+ J0 T, }% I# a p& |% b
- HAL_Init();' @3 G" e- i6 I- U% W
( o# ^, H0 _: x1 D4 Z/ h! b) ?; X" S2 @- /* Configure the system clock to 48 MHz */$ ?' R% U9 t6 P' Q Z/ U% }
- SystemClock_Config();
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3 P/ X1 O3 `5 Z: D( l! h - /* -1- Enable GPIO Clock (to be able to program the configuration registers) */) Y; W I& K8 y" q, n1 {8 P2 }) c
- LED3_GPIO_CLK_ENABLE();9 {3 k$ }+ m2 z; ]
2 S9 L1 `& k! n6 `+ W- /* -2- Configure IO in output push-pull mode to drive external LEDs */
* d- E( e# y6 g - GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;5 w+ Q9 Y# C$ N0 y
- GPIO_InitStruct.Pull = GPIO_PULLUP;
" q" b. Z& ~0 T) w - GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;" n% F, p# s' V; \6 t! z' D! r5 F
1 Z( h4 v. V: n8 k& |1 i- GPIO_InitStruct.Pin = LED3_PIN;
. O$ p. X3 T- G" J - HAL_GPIO_Init(LED3_GPIO_PORT, &GPIO_InitStruct);8 \% z! r W3 J
/ u1 X2 C) A6 z4 A+ E2 ?2 ]- /* -3- Toggle IO in an infinite loop */ I! s% t1 i; Q& V7 K
- while (1)
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$ |: M" ~* \0 A0 [6 d& d - HAL_GPIO_TogglePin(LED3_GPIO_PORT, LED3_PIN);$ t, U; i4 i; a
- /* Insert delay 100 ms */
7 l7 F/ C1 o- t$ u- l - HAL_Delay(100);
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- }
复制代码 好吧,暂时就这样吧。: R: |) `: _) f3 v1 }
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