78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
#include "opamp.h"
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OPAMP_HandleTypeDef hopamp1;
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OPAMP_HandleTypeDef hopamp2;
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OPAMP_HandleTypeDef hopamp3;
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void opamp_init(OPAMP_HandleTypeDef *hopamp, OPAMP_TypeDef *opamp)
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{
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hopamp1.Instance = opamp;
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hopamp1.Init.PowerMode = OPAMP_POWERMODE_NORMALSPEED;
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hopamp1.Init.Mode = OPAMP_PGA_MODE;
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hopamp1.Init.NonInvertingInput = OPAMP_NONINVERTINGINPUT_IO1;
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hopamp1.Init.InternalOutput = ENABLE;
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hopamp1.Init.TimerControlledMuxmode = OPAMP_TIMERCONTROLLEDMUXMODE_DISABLE;
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hopamp1.Init.PgaConnect = OPAMP_PGA_CONNECT_INVERTINGINPUT_NO;
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hopamp1.Init.PgaGain = OPAMP_PGA_GAIN_16_OR_MINUS_15; // Adjust this to change the gains of the opamp.
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hopamp1.Init.UserTrimming = OPAMP_TRIMMING_FACTORY;
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if (HAL_OPAMP_Init(&hopamp) != HAL_OK)
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{
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Error_Handler();
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}
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}
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void configureOPAMPs(void)
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{
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opamp_init(&hopamp1, OPAMP1); // PA3
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opamp_init(&hopamp2, OPAMP2); // PB0
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opamp_init(&hopamp3, OPAMP3); // PA1
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}
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void HAL_OPAMP_MspInit(OPAMP_HandleTypeDef* opampHandle)
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{
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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if(opampHandle->Instance==OPAMP1)
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{
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__HAL_RCC_GPIOA_CLK_ENABLE();
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GPIO_InitStruct.Pin = GPIO_PIN_3;
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GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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}
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else if(opampHandle->Instance==OPAMP2)
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{
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__HAL_RCC_GPIOB_CLK_ENABLE();
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GPIO_InitStruct.Pin = GPIO_PIN_0;
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GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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}
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else if(opampHandle->Instance==OPAMP3)
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{
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__HAL_RCC_GPIOA_CLK_ENABLE();
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GPIO_InitStruct.Pin = GPIO_PIN_1;
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GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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}
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}
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void HAL_OPAMP_MspDeInit(OPAMP_HandleTypeDef* opampHandle)
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{
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if(opampHandle->Instance==OPAMP1)
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{
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HAL_GPIO_DeInit(GPIOA, GPIO_PIN_3);
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}
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else if(opampHandle->Instance==OPAMP2)
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{
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HAL_GPIO_DeInit(GPIOB, GPIO_PIN_0);
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}
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else if(opampHandle->Instance==OPAMP3)
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{
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HAL_GPIO_DeInit(GPIOA, GPIO_PIN_1);
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}
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}
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