STM32 硬件SPI驱动磁编码器TLE5012B

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颩色四葉愺发布时间：2019-6-28 12:04

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找了一下网上的驱动程序，就一份程序被抄来抄了，有啥意思？。作者还不愿意把源代码公布，把电路和程序弄得又复杂，还要加上拉电阻，软件读取数据还要配置MOSI为开漏输入，心累。所以自己改了，现分享出来！

硬件平台：Nucle64-103，使用SPI正常读取即可

硬件连接：
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软件平台：STM32CubeMX+keil5.0+hal固件库

#include "app_tle5012b.h"1 P. @4 j0 V6 r/ m2 w3 r: D0 T+ p: T
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uint16_t SPIx_ReadWriteByte(uint16_t byte)
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{
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uint16_t read_value = 0;( X! h4 J' c7 f
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HAL_SPI_Transmit( &hspi1, (uint8_t *)(&byte), sizeof(byte)/sizeof(uint16_t), 0xff );
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HAL_SPI_Transmit( &hspi1, (uint8_t *)(&read_value), sizeof(read_value)/sizeof(uint16_t), 0xff );
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return read_value;5 k6 U$ [2 g$ O- M
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double ReadAngle(void)' x. q; R# p6 U9 `2 l
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return ( ReadValue(READ_ANGLE_VALUE) * 360.0 / 0x10000 );. h" K9 l/ k' ]) _$ n) W
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uint16_t ReadSpeed(void) W' _- l" |& g+ e. w# ?( K* p
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return ReadValue(READ_SPEED_VALUE);; c. l) C1 V+ s) k
}
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uint16_t ReadValue(uint16_t u16RegValue)5 k2 {1 x& d c% F
{
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uint16_t u16Data;
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SPI_CS_ENABLE;
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HAL_SPI_Transmit( &hspi1, (uint8_t *)(&u16RegValue), sizeof(u16RegValue)/sizeof(uint16_t), 0xff );/ b5 ]9 t! K! r/ x1 o) p
HAL_SPI_Receive( &hspi1,(uint8_t *)(&u16Data), sizeof(u16Data)/sizeof(uint16_t), 0xff );& L0 `' V1 t0 T& S
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SPI_CS_DISABLE;. a% r5 {3 A1 \& x4 w
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return((u16Data & 0x7FFF )<<1);2 @; F5 ^& T8 ~1 K1 R# m, G3 \
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复制代码

#ifndef _APP_TLE5012B_H_# d: y7 N' a4 I, O! V9 e
#define _APP_TLE5012B_H_
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#include "cpu_common.h"
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#define GPIO_CS_Pin_Name GPIO_PIN_4, D1 S' L1 r. X" s% K+ v
#define GPIO_CS_Pin_Type GPIOC
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#define SPI_CS_ENABLE HAL_GPIO_WritePin( GPIO_CS_Pin_Type, GPIO_CS_Pin_Name, GPIO_PIN_RESET )4 |& F& Q! Z) C1 v: @2 Q
#define SPI_CS_DISABLE HAL_GPIO_WritePin( GPIO_CS_Pin_Type, GPIO_CS_Pin_Name, GPIO_PIN_SET ) n1 _- z& P' H/ Y8 L: p
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/* SPI command for TLE5012 */( P% l2 T6 g/ C$ s% D) t4 S
#define READ_STATUS 0x8001 //8000
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#define READ_ANGLE_VALUE 0x8021 //8020% B: ]4 @. V* c k; @
#define READ_SPEED_VALUE 0x8031 //8030
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#define WRITE_MOD1_VALUE 0x5060 //0_1010_0_000110_00011 J8 q H6 {. n0 x' Z
#define MOD1_VALUE 0x0001
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#define WRITE_MOD2_VALUE 0x5080 //0_1010_0_001000_0001
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#define MOD2_VALUE 0x0801
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#define WRITE_MOD3_VALUE 0x5091 //0_1010_0_001001_0001
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#define MOD3_VALUE 0x0000
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#define WRITE_MOD4_VALUE 0x50E0 //0_1010_0_001110_0001
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#define MOD4_VALUE 0x0098 //9bit 512
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#define WRITE_IFAB_VALUE 0x50B1
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#define IFAB_VALUE 0x000D
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/* Functionality mode */6 s& D; j! n% @7 Q
#define REFERESH_ANGLE 0
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void SPI_SendData16(uint16_t SendData);
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uint16_t SPI_ReadData16(void);8 V3 y/ B" Y9 v2 X0 O9 _8 P: @+ W
double ReadAngle(void);( p& ~( n2 E4 w* E
uint16_t ReadSpeed(void);
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uint16_t ReadValue(uint16_t u16Value);
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uint16_t SPIx_ReadWriteByte(uint16_t byte);+ T) r5 b9 T0 @( d4 F+ L' ?$ j
uint16_t TlE5012W_Reg(uint16_t Reg_CMD, uint16_t Reg_Data);! X( X# t& z0 V6 v* @6 ?
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#endif