55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
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#include "user_asm330lhh.h"
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stmdev_ctx_t spi1_dev ;
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extern SPI_HandleTypeDef hspi1;
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static int32_t platform_write(void *handle, uint8_t reg, const uint8_t *bufp,uint16_t len)
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{
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GPIO_TypeDef *GPIOx;
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uint16_t GPIO_Pin;
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if(handle == &hspi1)
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{
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GPIOx = SPI1_CS_PORT;
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GPIO_Pin= SPI1_CS_PIN;
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}
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HAL_GPIO_WritePin(GPIOx, GPIO_Pin, GPIO_PIN_RESET);
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HAL_SPI_Transmit(handle, ®, 1, 1000);
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HAL_SPI_Transmit(handle, (uint8_t*) bufp, len, 1000);
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HAL_GPIO_WritePin(GPIOx, GPIO_Pin, GPIO_PIN_SET);
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return 0;
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}
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static int32_t platform_read(void *handle, uint8_t reg, uint8_t *bufp,uint16_t len)
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{
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uint8_t temp=reg;
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temp |= 0x80;
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// GPIO_TypeDef *GPIOx;
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// uint16_t GPIO_Pin;
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// if (handle == &hspi1) {
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// GPIOx = SPI1_CS_PORT;
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// GPIO_Pin = SPI1_CS_PIN;
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// }
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// HAL_GPIO_WritePin(GPIOx, GPIO_Pin, GPIO_PIN_RESET);
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// HAL_SPI_Transmit(handle, &temp, 1, 1000);
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// HAL_SPI_Receive(handle, bufp, len, 1000);
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// HAL_GPIO_WritePin(GPIOx, GPIO_Pin, GPIO_PIN_SET);
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HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
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HAL_SPI_Transmit(handle, &temp, 1, 1000);
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HAL_SPI_Receive(handle, bufp, len, 1000);
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HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
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return 0;
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}
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void user_dev_init()
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{
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spi1_dev.handle=&hspi1;
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spi1_dev.mdelay=HAL_Delay;
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spi1_dev.write_reg=platform_write;
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spi1_dev.read_reg=platform_read;
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}
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