Keil: Error-Flash-download-failed-Cortex-M0

Posted on July 21, 2013 at 23:58

Hi,

use

the

STM32F103

microcontroller

for my thesis

.

The firmware

uses different

Timer,

2

ADC

, SPI

and some

GPIOs

.

Until yesterday

everything worked

perfectly

but since I

decided to use

two timers

in

master / slave mode

,

to generate two

PWM

, I get the

following error

in Keil

: Error-Flash-download

-failed-

Cortex-

M0.

A

fter downloading of the

new firmware, the microcontroller is

working properly

and is able to

perform different tasks

, but when

I want to load

a new firmware

I get

the error: ''

Error-

Flash-download

-failed-

Cortex-

M0''.

I checked

if the download algorithm

is

the correct one.

I deleted

the target and

compiled all the

code

in Keil

.

For now,

the only way to

retrieve my

board is

replaced

the

micrcontrollore

with another

one

and not

load the latest firmware

.

This is the function

that I added

:

void STM32_PumpEnable(unsigned short DutyCycle,unsigned short

FullPeriod,u16presc)

2  {

3

4  /*Configurazione GPIO PIN_POMPA_PIEZO1*/

5  GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;

6  GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;

7  GPIO_InitStructure.GPIO_Pin=PIN_POMPA_PIEZO1;

8  GPIO_Init(BANCO_POMPA,&GPIO_InitStructure);

9

10

11  /* Uscita Canale 3 Negato */

12  GPIO_N_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;

13  GPIO_N_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;

14  GPIO_N_InitStructure.GPIO_Pin=GPIO_Pin_1;

15  GPIO_Init(GPIOB,&GPIO_N_InitStructure);

16

17  /* Inizializzazione Timer8 - Piezo 1 */

18  TIM_TimeBaseStructure.TIM_Period=FullPeriod;

19  TIM_TimeBaseStructure.TIM_Prescaler=presc; //0x80

20  TIM_TimeBaseStructure.TIM_ClockDivision=0x00; //0x00

21  TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up;

22  /* Deinitializes the TIMx peripheral registers to their default reset

values. */

23  TIM_DeInit(TIM_PWM_POMPA);

24  /* Initializes the TIMx Time Base Unit peripheral according to the

specified parameters in the TIM_TimeBaseInitStruct. */

25  TIM_TimeBaseInit(TIM_PWM_POMPA,&TIM_TimeBaseStructure);

26  /* Enables or disables TIMx peripheral Preload register on ARR. */

27  /* Updata timer when overflow occur */

28  TIM_ARRPreloadConfig(TIM_PWM_POMPA,ENABLE);

29  /* Configurazione Canale PIN_POMPA_PIEZO1*/

30  TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM1;

31  TIM_OCInitStructure.TIM_Pulse=DutyCycle;

32  TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;

33  TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_Low;

34  TIM_OCInitStructure.TIM_OCIdleState=TIM_OCIdleState_Reset;

35  TIM_OC1Init(TIM_PWM_POMPA,&TIM_OCInitStructure);

36  TIM_OC1PreloadConfig(TIM_PWM_POMPA,TIM_OCPreload_Enable);

37  TIM_OC1FastConfig(TIM_PWM_POMPA,TIM_OCFast_Disable);

38

39  /*Sets or Resets the TIMx Master/Slave Mode.*/

40  TIM_SelectMasterSlaveMode(TIM_PWM_POMPA,TIM_MasterSlaveMode_Enable);

41  /*Enables or Disables the TIMx Update event.*/

42  TIM_UpdateDisableConfig(TIM_PWM_POMPA,ENABLE);

43  /*Selects the TIMx Trigger Output Mode.*/

44  TIM_SelectOutputTrigger(TIM_PWM_POMPA,TIM_TRGOSource_Update);

45

46

47  /*Configurazione GPIO PIN_POMPA_PIEZO2*/

48  GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;

49  GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;

50  GPIO_InitStructure.GPIO_Pin=GPIO_Pin_1;

51  GPIO_Init(GPIOB,&GPIO_InitStructure);

52  /* Inizializzazione Timer3 - Piezo 2 */

53  TIM_TimeBaseStructure.TIM_Period=FullPeriod;

54  TIM_TimeBaseStructure.TIM_Prescaler=presc; //0x80

55  TIM_TimeBaseStructure.TIM_ClockDivision=0x00; //0x00

56  TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up;

57  /* Deinitializes the TIMx peripheral registers to their default reset

values. */

58  TIM_DeInit(TIM3);

Page 1

Funzione.c 21/07/2013

59  /* Initializes the TIMx Time Base Unit peripheral according to the

specified parameters in the TIM_TimeBaseInitStruct. */

60  TIM_TimeBaseInit(TIM3,&TIM_TimeBaseStructure);

61  /* Enables or disables TIMx peripheral Preload register on ARR. */

62  /* Updata timer when overflow occur */

63  TIM_ARRPreloadConfig(TIM3,ENABLE);

64

65  /* Configurazione Canale PIN_POMPA_PIEZO2*/

66  TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM1;

67  TIM_OCInitStructure.TIM_Pulse=DutyCycle;

68  TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;

69  TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_Low;

70  TIM_OCInitStructure.TIM_OCIdleState=TIM_OCIdleState_Reset;

71  TIM_OC4Init(TIM3,&TIM_OCInitStructure);

72  TIM_OC4PreloadConfig(TIM3,TIM_OCPreload_Enable);

73  TIM_OC4FastConfig(TIM3,TIM_OCFast_Enable);

74  // TIM_OC3Init(TIM_PWM_POMPA, &TIM_OCInitStructure);

75  // TIM_OC3PreloadConfig(TIM_PWM_POMPA, TIM_OCPreload_Enable);

76  // TIM_OC3FastConfig(TIM_PWM_POMPA, TIM_OCFast_Enable);

77

78  /*Selects the TIMx Slave Mode.*/

79  TIM_SelectSlaveMode(TIM3,TIM_SlaveMode_Trigger);

80  /*Selects the Input Trigger source*/

81  TIM_SelectInputTrigger(TIM3,TIM_TS_ITR1);

82

83

84  TIM_CtrlPWMOutputs(TIM_PWM_POMPA,ENABLE);

85  TIM_Cmd(TIM_PWM_POMPA,ENABLE);

86

87  }

This problem

may be due to

a bug

in the libraries

?

Can you help me

to solve this problem?

Thanks to all

Hello

#stm32 #output #discovery #pwm