45 lines
931 B
C++
45 lines
931 B
C++
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/*
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* Flash.hpp
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*
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* Created on: Aug 26, 2020
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* Author: jan
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*/
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#ifndef DRIVERS_FLASH_HPP_
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#define DRIVERS_FLASH_HPP_
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#include "stm.hpp"
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class Flash {
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public:
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constexpr Flash(SPI_HandleTypeDef *spi, GPIO_TypeDef *CS_gpio, uint16_t CS_pin)
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: spi(spi),CS_gpio(CS_gpio),CS_pin(CS_pin){};
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bool isPresent();
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void read(uint32_t address, uint16_t length, void *dest);
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bool write(uint32_t address, uint16_t length, uint8_t *src);
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bool eraseChip();
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// Starts the reading process without actually reading any bytes
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void initiateRead(uint32_t address);
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const SPI_HandleTypeDef* const& getSpi() const {
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return spi;
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}
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private:
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void CS(bool high) {
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if(high) {
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CS_gpio->BSRR = CS_pin;
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} else {
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CS_gpio->BSRR = CS_pin << 16;
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}
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}
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void EnableWrite();
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bool WaitBusy(uint32_t timeout);
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SPI_HandleTypeDef * const spi;
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GPIO_TypeDef * const CS_gpio;
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const uint16_t CS_pin;
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};
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#endif /* DRIVERS_FLASH_HPP_ */
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