This file provides firmware functions to manage the following functionalities of the operational amplifiers (OPAMP1,...OPAMP4) peripheral: More...
#include "stm32f30x_opamp.h"
Include dependency graph for stm32f30x_opamp.c:
Go to the source code of this file.
Macros | |
| #define | OPAMP_CSR_DEFAULT_MASK ((uint32_t)0xFFFFFF93) |
| #define | OPAMP_CSR_TIMERMUX_MASK ((uint32_t)0xFFFFF8FF) |
| #define | OPAMP_CSR_TRIMMING_MASK ((uint32_t)0x0000001F) |
Functions | |
| void | OPAMP_Cmd (uint32_t OPAMP_Selection, FunctionalState NewState) |
| Enable or disable the OPAMP peripheral. More... | |
| void | OPAMP_DeInit (uint32_t OPAMP_Selection) |
| Deinitializes OPAMP peripheral registers to their default reset values. More... | |
| uint32_t | OPAMP_GetOutputLevel (uint32_t OPAMP_Selection) |
| Return the output level (high or low) during calibration of the selected OPAMP. More... | |
| void | OPAMP_Init (uint32_t OPAMP_Selection, OPAMP_InitTypeDef *OPAMP_InitStruct) |
| Initializes the OPAMP peripheral according to the specified parameters in OPAMP_InitStruct. More... | |
| void | OPAMP_LockConfig (uint32_t OPAMP_Selection) |
| Lock the selected OPAMP configuration. More... | |
| void | OPAMP_OffsetTrimConfig (uint32_t OPAMP_Selection, uint32_t OPAMP_Input, uint32_t OPAMP_TrimValue) |
| Configure the trimming value of the OPAMP. More... | |
| void | OPAMP_OffsetTrimModeSelect (uint32_t OPAMP_Selection, uint32_t OPAMP_Trimming) |
| Select the trimming mode. More... | |
| void | OPAMP_PGAConfig (uint32_t OPAMP_Selection, uint32_t OPAMP_PGAGain, uint32_t OPAMP_PGAConnect) |
| Configure the feedback resistor gain. More... | |
| void | OPAMP_StartCalibration (uint32_t OPAMP_Selection, FunctionalState NewState) |
| Start or stop the calibration of selected OPAMP peripheral. More... | |
| void | OPAMP_StructInit (OPAMP_InitTypeDef *OPAMP_InitStruct) |
| Fills each OPAMP_InitStruct member with its default value. More... | |
| void | OPAMP_TimerControlledMuxCmd (uint32_t OPAMP_Selection, FunctionalState NewState) |
| Enable or disable the timer-controlled mux mode. More... | |
| void | OPAMP_TimerControlledMuxConfig (uint32_t OPAMP_Selection, OPAMP_InitTypeDef *OPAMP_InitStruct) |
| Configure the OPAMP peripheral (secondary inputs) for timer-controlled mux mode according to the specified parameters in OPAMP_InitStruct. More... | |
| void | OPAMP_VrefConfig (uint32_t OPAMP_Selection, uint32_t OPAMP_Vref) |
| Configure the OPAMP's internal reference. More... | |
| void | OPAMP_VrefConnectADCCmd (uint32_t OPAMP_Selection, FunctionalState NewState) |
| Enables or disables connecting the OPAMP's internal reference to ADC. More... | |
| void | OPAMP_VrefConnectNonInvertingInput (uint32_t OPAMP_Selection, FunctionalState NewState) |
| Connnect the internal reference to the OPAMP's non inverting input. More... | |
Detailed Description
This file provides firmware functions to manage the following functionalities of the operational amplifiers (OPAMP1,...OPAMP4) peripheral:
- Version
- V1.1.1
- Date
- 04-April-2014
- OPAMP Configuration
- OPAMP calibration
==============================================================================
##### OPAMP Peripheral Features #####
==============================================================================
[..]
The device integrates 4 operational amplifiers OPAMP1, OPAMP2, OPAMP3 and OPAMP4:
(+) The OPAMPs non inverting input can be selected among the list shown by
table below.
(+) The OPAMPs inverting input can be selected among the list shown by
table below.
(+) The OPAMPs outputs can be internally connected to the inverting input
(follower mode)
(+) The OPAMPs outputs can be internally connected to resistor feedback
output (Programmable Gain Amplifier mode)
(+) The OPAMPs outputs can be internally connected to ADC
(+) The OPAMPs can be calibrated to compensate the offset compensation
(+) Timer-controlled Mux for automatic switch of inverting and
non-inverting input
OPAMPs inverting/non-inverting inputs:
+--------------------------------------------------------------+
| | | OPAMP1 | OPAMP2 | OPAMP3 | OPAMP4 |
|-----------------|--------|--------|--------|--------|--------|
| | PGA | OK | OK | OK | OK |
| Inverting Input | Vout | OK | OK | OK | OK |
| | IO1 | PC5 | PC5 | PB10 | PB10 |
| | IO2 | PA3 | PA5 | PB2 | PD8 |
|-----------------|--------|--------|--------|--------|--------|
| | IO1 | PA7 | PD14 | PB13 | PD11 |
| Non Inverting | IO2 | PA5 | PB14 | PA5 | PB11 |
| Input | IO3 | PA3 | PB0 | PA1 | PA4 |
| | IO4 | PA1 | PA7 | PB0 | PB13 |
+--------------------------------------------------------------+
##### How to use this driver #####
==============================================================================
[..]
This driver provides functions to configure and program the OPAMP
of all STM32F30x devices.
To use the OPAMP, perform the following steps:
(#) Enable the SYSCFG APB clock to get write access to OPAMP
register using RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
(#) Configure the OPAMP input in analog mode using GPIO_Init()
(#) Configure the OPAMP using OPAMP_Init() function:
(++) Select the inverting input
(++) Select the non-inverting inverting input
(#) Enable the OPAMP using OPAMP_Cmd() function- Attention
© COPYRIGHT 2014 STMicroelectronics
Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); You may not use this file except in compliance with the License. You may obtain a copy of the License at:
http://www.st.com/software_license_agreement_liberty_v2
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
Definition in file stm32f30x_opamp.c.