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MFT_Mode_1a_main.c File Reference

This example demonstrate the possibility of multi-function timers configured in mode 1a (pulse-train mode) to generate exact number of PWM pulses. More...

`#include "BlueNRG1.h"`
`#include "BlueNRG1_conf.h"`
`#include "SDK_EVAL_Config.h"`

Go to the source code of this file.

## Macros

#define | PWM1_PIN GPIO_Pin_3

## Functions

void | GPIO_Configuration (void)
| GPIO Configuration. More...
void | MFT_Configuration ()
| MFT_Configuration. More...
int | main (void)
| Main program code. More...

## Detailed Description

This example demonstrate the possibility of multi-function timers configured in mode 1a (pulse-train mode) to generate exact number of PWM pulses.

# ATOLLIC project

To use the project with ATOLLIC TrueSTUDIO for ARM, please follow the instructions below:

1. Open the ATOLLIC TrueSTUDIO for ARM and select File->Import... Project menu.
2. Select Existing Projects into Workspace.
3. Select the ATOLLIC project
4. Select desired configuration to build from Project->Manage Configurations
5. Select Project->Rebuild Project. This will recompile and link the entire application
6. To download the binary image, please connect STLink to JTAG connector in your board (if available).
7. Select Project->Download to download the related binary image.
8. Alternatively, open the BlueNRG1 GUI, put the board in bootloader mode and download the built binary image.

# KEIL project

To use the project with KEIL uVision 5 for ARM, please follow the instructions below:

1. Open the KEIL uVision 5 for ARM and select Project->Open Project menu.
2. Open the KEIL project `...\Project\BlueNRG1_Periph_Examples\MFT\Mode_1a\MDK-ARM\Mode_1a.uvprojx`
3. Select desired configuration to build
4. Select Project->Rebuild all target files. This will recompile and link the entire application
5. To download the binary image, please connect STLink to JTAG connector in your board (if available).
6. Select Project->Download to download the related binary image.
7. Alternatively, open the BlueNRG1 GUI, put the board in bootloader mode and download the built binary image.

# IAR project

To use the project with IAR Embedded Workbench for ARM, please follow the instructions below:

1. Open the Embedded Workbench for ARM and select File->Open->Workspace menu.
2. Open the IAR project `...\Project\BlueNRG1_Periph_Examples\MFT\Mode_1a\EWARM\Mode_1a.eww`
3. Select desired configuration to build
4. Select Project->Rebuild All. This will recompile and link the entire application
5. To download the binary image, please connect STLink to JTAG connector in your board (if available).
6. Select Project->Download and Debug to download the related binary image.
7. Alternatively, open the BlueNRG1 GUI, put the board in bootloader mode and download the built binary image.

## Project configurations

- `Release` - Release configuration

# Boards supported

- `STEVAL-IDB007V1`

# Power configuration settings

STEVAL-IDB007V1
Jumper name |  | Description
JP1 | JP2 |
ON 1-2 | ON 2-3 | USB supply power
ON 2-3 | ON 1-2 | The supply voltage must be provided through battery pins.
ON 1-2 |  | USB supply power to STM32L1, JP2 pin 2 external power to BlueNRG1

# Jumper settings

STEVAL-IDB007V1
Jumper name | Description
JP1 | 1-2: to provide power from USB (JP2:2-3). 2-3: to provide power from battery holder (JP2:1-2)
JP2 | 1-2: to provide power from battery holder (JP1:2-3). 2-3: to provide power from USB (JP1:1-2). Pin2 to VDD to provide external power supply to BlueNRG-1 (JP1: 1-2)
JP3 | pin 1 and 2 UART RX and TX of MCU. pin 3 GND.
JP4 | Fitted: to provide VBLUE to BlueNRG1. It can be used also for current measurement.
JP5 | Fitted : TEST pin to VBLUE. Not fitted: TEST pin to GND

# Pin settings

PIN name | STEVAL-IDB007V1
ADC1 | Not Used
ADC2 | Not Used
IO0 | Not Used
IO1 | Not Used
IO11 | Not Used
IO12 | Not Used
IO13 | Not Used
IO14 | Not Used
IO2 | Not Used
IO3 | TnB pin
IO4 | Not Used
IO5 | Not Used
IO6 | Drive the LED DL1
IO7 | Not Used
IO8 | Not Used
TEST1 | Not Used

# LEDs description

LED name | STEVAL-IDB007V1
DL1 | Toggle
DL2 | Not Used
DL3 | Not Used
DL4 | Power

# Buttons description

BUTTON name | STEVAL-IDB007V1
PUSH1 | Not Used
PUSH2 | Not Used
RESET | Reset BlueNRG1

# Usage

In mode 1a (pulse-train mode) the Timer/Counter 1 functions as PWM timer. Timer/Counter 2 is used as pulse counter that defined number of pulses which should be generated.

In this example, MFT2 is configured to generate 30 pulses with positive level of 500 ms and negative level of 250ms. MFT2 uses prescaled clock as Timer/Counter 1.

The IO3 pin is configured as output generating the number of pulses configured.

Interrupts TnA and TnB are enable and toggle GPIO 8 and 10. Interrupt TnD is enabled and set GPIO 7.

To start the generation software or external trigger must be selected. For external trigger raising or falling edge can be selected. In this example, software trigger is selected and generated after system configuration.

Timer/Counter 1 interrupts upon reload are enabled for MFT1. Interrupt routines toggle LED DL1 for MFT2.

Definition in file MFT_Mode_1a_main.c.