步骤1:初始化LFS_BLOCK_CYCLES变量 在实现“LFS_BLOCK_CYCLES”之前,我们需要先初始化一个变量来存储这个值。你可以在代码中添加以下行来初始化LFS_BLOCK_CYCLES变量: intLFS_BLOCK_CYCLES=0;// 初始化LFS_BLOCK_CYCLES变量 1. 这行代码将创建一个整数类型的变量LFS_BLOCK_CYCLES,并将其初始化为0。 步骤2:设...
36. 👀 所有创建的线程,并不会立马进入运行态,而是进行就绪态,rt_thread_startup()这句话的意义只是将线程放入就绪列表中。 rt_system_scheduler_start();执行完这一句之后才会开始调度,从就绪列表中找出最高优先级先执行 线程状态与优先级 在系统中,当有比当前线程优先级更高的线程就绪时,当前线程将立刻被换...
#define LFS_BLOCK_CYCLES (-1) #endif #ifndef LFS_LOOKAHEAD_MAX #define LFS_LOOKAHEAD_MAX 128 #endif #define ATTR_TIMESTAMP 0x74 typedef struct _dfs_lfs_s { struct lfs lfs; struct lfs_config cfg; struct rt_mutex lock; } dfs_lfs_t; typedef struct _dfs_lfs_fd_s ...
.block_cycles = 500,};// entry point int main(void) { // mount the filesystem int err = ...
From my debug output it looks like LFS tries to program the same block twice without erasing it in between. My setup is: read_size, prog_size = 2048, block_size = 2048 * 64, block_count = 1024, cache_size, lookahead_size = read_size, block_cycles = 1, NO_MALLOC static buffers ...
int32_t block_cycles; lfs_size_t cache_size; lfs_size_t lookahead_size; void *read_buffer; void *prog_buffer; void *lookahead_buffer; lfs_size_t name_max; lfs_size_t file_max; lfs_size_t attr_max; lfs_size_t metadata_max; ...
.block_cycles = 5000, }; Now, when we try to run the program and it reaches this part of the code, the function returns with error -2: // read current count lfs_file_t file; int32_t boot_count = 0; int32_t error_number = lfs_file_open(&lfs, &file, "boot_count", LFS_O...
OpenHarmony-5.0.2-Release OpenHarmony-5.0.3-Release OpenHarmony-5.0-Beta1 OpenHarmony-5.0-Release OpenHarmony-5.0.0-Release OpenHarmony-v5.0.2-Release OpenHarmony-v4.1.2-Release OpenHarmony-v5.0.1-Release OpenHarmony-v4.0.4-Release OpenHarmony-v5.0.0-Release OpenHarmony-v4.0.3-Release OpenHarm...
• Hardware Block-Protection/WP# Input Pin –Top Block-Protection (top 32 KWord) • Fast Read Access Times: –Flash: 70 ns –SRAM: 70 ns • Latched Address and Data for Flash • Flash Fast Erase and Word-Program: –Sector-Erase Time: 18 ms (typical) ...
Therefore the system software or hardware does not have to be modified or de-rated as is necessary with alternative flash technologies, whose Erase and Program times increase with accumulated Erase/Program cycles. Concurrent Read/Write Operation The SST32HFx2/x2C provide the unique benefit of ...