本帖最后由 电子星辰 于 2018-6-17 21:19 编辑
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开发环境:WIN7_64位系统;Keil MDK5;STM32CubeMX。(Java环境(Cube必须)): d! L8 p l% b; w" s
1、下载并安装好STM32CubeF0_V1.9.0,USB驱动:STSW_LINK009_V2.0.0。
$ x- i- D' a% U, Q8 V2、随便找一根MicroUSB的安卓手机线连接Nucleo板和电脑就可以了。. T4 N Z6 n; T& A! \9 C( G k
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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( ~% e$ x- i' n: M' I, t4 O$ i
...\Repository\STM32Cube_FW_F0_V1.9.0\Projects\STM32F042K6-Nucleo\Examples\GPIO\GPIO_IOToggle8 d9 h' g* Q% N0 J, Z5 O
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。
0 b, j- V& B8 e- B$ q+ x+ J编译,下载。
/ n5 U& W* b5 b. | t下载失败。。。( Z( Z1 I5 n. x$ C, o. s
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8 D9 u3 H0 C! I" b1 O" P打开设置里-Debug-STLink Debugger的Settings-Flash Download
0 U i8 N* U0 f0 M: X点Add,选32K的。
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好,这次可以了。
! l) t2 N+ m$ a7 @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。* J; {5 Y1 O' y4 F5 ~2 x- ~: C, [
附一下例程部分代码:
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# o7 k( M+ Q W4 l7 p8 C - /* This sample code shows how to use GPIO HAL API to toggle LED3 IO8 A8 M( ` t) I# _* r6 ?
- in an infinite loop. */* e( }* w8 P0 ~! ?" J$ |+ g
9 ]5 C4 g9 ^- F) i( C! s8 r9 S/ Y+ W: q- /* STM32F0xx HAL library initialization:7 Y' H4 c5 A1 B5 H5 |& k% J
- - Configure the Flash prefetch
, n, R6 N; w7 ^$ J. ^$ n - - Systick timer is configured by default as source of time base, but user
9 j2 L5 D' @: m+ k" J - can eventually implement his proper time base source (a general purpose
8 E& D9 }8 c& i! r' J; k, U9 [+ f - timer for example or other time source), keeping in mind that Time base , J$ v" v I. G, J; N$ D
- duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and + g- M# J' B& H# I
- handled in milliseconds basis.- h* D; | b/ h& J6 x- m- f! \9 i
- - Low Level Initialization/ F% N8 d. a/ h0 l
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- HAL_Init();
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& O- A' A% {; n, p# S- /* Configure the system clock to 48 MHz */
3 F0 b! L& ?' \ - SystemClock_Config();$ A N! V$ L. F% j
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. }# d1 j% E9 t+ { - /* -1- Enable GPIO Clock (to be able to program the configuration registers) */
) P, C1 `4 Z3 q6 a" d - LED3_GPIO_CLK_ENABLE();
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% X' Z8 u( D; O- /* -2- Configure IO in output push-pull mode to drive external LEDs */
) P; C; z, _8 f1 [ - GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;. X5 M4 U y/ b
- GPIO_InitStruct.Pull = GPIO_PULLUP;
3 T0 S. R2 e o( T" }1 H9 S - GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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# i/ \- e7 U& U3 N$ w! r: c- GPIO_InitStruct.Pin = LED3_PIN;
6 j5 ~, r# O! S: n - HAL_GPIO_Init(LED3_GPIO_PORT, &GPIO_InitStruct);
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; v, T, m/ q: M: t7 ^: Z0 f. x- /* -3- Toggle IO in an infinite loop */
+ K9 G) H$ F9 E0 p3 P - while (1)$ K3 e! E8 x3 w7 v. k8 n3 L
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; O1 X# f: X5 R6 \* n1 u$ S6 W - HAL_GPIO_TogglePin(LED3_GPIO_PORT, LED3_PIN);
6 w. A* T$ p B: @* D& T) E) i - /* Insert delay 100 ms */& }) F0 L) x9 B' Z5 ~; z
- HAL_Delay(100);6 @' A. t1 m, [
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- }
复制代码 好吧,暂时就这样吧。, c: m( e- h; u" d. \6 w4 ]0 G
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