//Set 4 byte mode static uint8_t four_byte_mode[] = {0xB7}; static uint8_t four_byte_mode_len = 1; ////Read from Any register static uint8_t rdar_addr[] = {0x65, 0x00, 0x00, 0x00, 0x00 }; //Reads from any register static uint8_t rdar_addr_len = 5; static uint8_t rdar[64]; static uint8_t rdar_len = 5+1; //write length plus actual register ////Write to Config Register 2 Non-Volatile static uint8_t cr2nv[] = {0x71, 0x00, 0x00, 0x00, 0x03, 0x88}; //writes to CR2NV , bit7=4-byte addressing, 6=QSPI, 5=IO3Reset,4=RFU, 3-0 = Read Latency static uint8_t cr2nv_len = 6; //Write Enable Command static uint8_t write_en_cmd[] = {0x06}; //addr 06 static uint8_t write_en_cmd_len = 1; static void memory_read_register(uint32_t address, char * str, uint8_t len) { if(memory_wait_until_ready() == false) { NRF_LOG_ERROR("Flash timed out before we could erase everything"); NRF_LOG_FLUSH(); } set_command_address(rdar_addr,address); spi_read(FLASH_SSEL_PIN,rdar_addr,rdar_addr_len,rdar,len); NRF_LOG_RAW_INFO("%s ",str); uint8_t i; for(i=0; i < len; i++) NRF_LOG_RAW_INFO("0x%02x ",rdar); NRF_LOG_RAW_INFO("\r\n"); NRF_LOG_FLUSH(); } void memory_init (void) { ret_code_t err_code; uint8_t i; for(i=0; i < 4; i++) who_am_i = 0; //read the information about the flash to make sure it is the correct one spi_read(FLASH_SSEL_PIN,who_am_i_addr,who_am_i_addr_len, who_am_i, who_am_i_len); NRF_LOG_DEBUG("Indentification info should match 0x01,0x02,0x20 : 0x%02x,0x%02x,0x%02x ", who_am_i[1], who_am_i[2], who_am_i[3]); //Set ourselves in 4-byte addressing mode spi_write(FLASH_SSEL_PIN,write_en_cmd, write_en_cmd_len); spi_write(FLASH_SSEL_PIN,four_byte_mode, four_byte_mode_len); nrf_delay_ms(100); //Permanently set ourselves into 4 byte mode spi_write(FLASH_SSEL_PIN,write_en_cmd, write_en_cmd_len); spi_write(FLASH_SSEL_PIN,cr2nv, cr2nv_len); nrf_delay_ms(100); //flash memory timer err_code = app_timer_create(&flash_erase_timer_id, APP_TIMER_MODE_SINGLE_SHOT, flash_erase_timeout_handler); APP_ERROR_CHECK(err_code); //read from our status registers spi_read(FLASH_SSEL_PIN,sr1v_addr,sr1v_addr_len,sr1v,sr1v_len); NRF_LOG_INFO("SR1: %d",sr1v[2]); spi_read(FLASH_SSEL_PIN,sr2v_addr,sr2v_addr_len,sr1v,sr1v_len); NRF_LOG_INFO("SR2: %d",sr1v[2]); spi_read(FLASH_SSEL_PIN,cr1v_addr,sr1v_addr_len,sr1v,sr1v_len); NRF_LOG_INFO("CR1: %d",sr1v[2]); memory_read_register(0x00800000, "SR1:", 8); memory_read_register(2, "CR1NV:", 8); memory_read_register(3, "CR2NV:", 8); memory_read_register(4, "CR3NV:", 8); memory_read_register(5, "CR4NV:", 8); memory_read_register(0x00800002, "CR1:", 8); memory_read_register(0x00800003, "CR2:", 8); memory_read_register(0x00800004, "CR3:", 8); memory_read_register(0x00800005, "CR4:", 8); memory_read_register(0x00800040, "PPBL:", 8); spi_write(FLASH_SSEL_PIN,write_en_cmd, write_en_cmd_len); memory_read_register(0x00800000, "SR1:", 8); memory_read_ppbr(0, "PPBR:", 16); NRF_LOG_FLUSH(); FLAG_FLASH_FINISHED_ERASING = 0; head_pointer = 0; tail_pointer = 0; } | 
Nov 27, 2018
Solved
