X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fstlink-common.c;h=2ecddea3dd8bb1f7b93fc3ef71594a026d69703f;hb=9c2b7dd76b8c5da11f3789c8dc3f5226f6f5f877;hp=c614677d15bd3cb0749faf25e624e0953c0cb098;hpb=28956cf2c9f52b13245d0b6a9529f7f06c972aff;p=fw%2Fstlink diff --git a/src/stlink-common.c b/src/stlink-common.c index c614677..2ecddea 100644 --- a/src/stlink-common.c +++ b/src/stlink-common.c @@ -59,8 +59,10 @@ #define STM32L_FLASH_PRGKEYR (STM32L_FLASH_REGS_ADDR + 0x10) #define STM32L_FLASH_OPTKEYR (STM32L_FLASH_REGS_ADDR + 0x14) #define STM32L_FLASH_SR (STM32L_FLASH_REGS_ADDR + 0x18) -#define STM32L_FLASH_OBR (STM32L_FLASH_REGS_ADDR + 0x0c) +#define STM32L_FLASH_OBR (STM32L_FLASH_REGS_ADDR + 0x1c) #define STM32L_FLASH_WRPR (STM32L_FLASH_REGS_ADDR + 0x20) +#define FLASH_L1_FPRG 10 +#define FLASH_L1_PROG 3 //STM32F4 @@ -121,29 +123,27 @@ uint32_t read_uint32(const unsigned char *c, const int pt) { } static uint32_t __attribute__((unused)) read_flash_rdp(stlink_t *sl) { - stlink_read_mem32(sl, FLASH_WRPR, sizeof (uint32_t)); - return read_uint32(sl->q_buf, 0) & 0xff; + return stlink_read_debug32(sl, FLASH_WRPR) & 0xff; } static inline uint32_t read_flash_wrpr(stlink_t *sl) { - stlink_read_mem32(sl, FLASH_WRPR, sizeof (uint32_t)); - return read_uint32(sl->q_buf, 0); + return stlink_read_debug32(sl, FLASH_WRPR); } static inline uint32_t read_flash_obr(stlink_t *sl) { - stlink_read_mem32(sl, FLASH_OBR, sizeof (uint32_t)); - return read_uint32(sl->q_buf, 0); + return stlink_read_debug32(sl, FLASH_OBR); } static inline uint32_t read_flash_cr(stlink_t *sl) { + uint32_t res; if(sl->chip_id==STM32F4_CHIP_ID) - stlink_read_mem32(sl, FLASH_F4_CR, sizeof (uint32_t)); + res = stlink_read_debug32(sl, FLASH_F4_CR); else - stlink_read_mem32(sl, FLASH_CR, sizeof (uint32_t)); + res = stlink_read_debug32(sl, FLASH_CR); #if DEBUG_FLASH - fprintf(stdout, "CR:0x%x\n", *(uint32_t*) sl->q_buf); + fprintf(stdout, "CR:0x%x\n", res); #endif - return read_uint32(sl->q_buf, 0); + return res; } static inline unsigned int is_flash_locked(stlink_t *sl) { @@ -161,16 +161,12 @@ static void unlock_flash(stlink_t *sl) { the FPEC block until next reset. */ if(sl->chip_id==STM32F4_CHIP_ID) { - write_uint32(sl->q_buf, FLASH_KEY1); - stlink_write_mem32(sl, FLASH_F4_KEYR, sizeof (uint32_t)); - write_uint32(sl->q_buf, FLASH_KEY2); - stlink_write_mem32(sl, FLASH_F4_KEYR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_F4_KEYR, FLASH_KEY1); + stlink_write_debug32(sl, FLASH_F4_KEYR, FLASH_KEY2); } else { - write_uint32(sl->q_buf, FLASH_KEY1); - stlink_write_mem32(sl, FLASH_KEYR, sizeof (uint32_t)); - write_uint32(sl->q_buf, FLASH_KEY2); - stlink_write_mem32(sl, FLASH_KEYR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_KEYR, FLASH_KEY1); + stlink_write_debug32(sl, FLASH_KEYR, FLASH_KEY2); } } @@ -192,14 +188,12 @@ static int unlock_flash_if(stlink_t *sl) { static void lock_flash(stlink_t *sl) { if(sl->chip_id==STM32F4_CHIP_ID) { const uint32_t n = read_flash_cr(sl) | (1 << FLASH_F4_CR_LOCK); - write_uint32(sl->q_buf, n); - stlink_write_mem32(sl, FLASH_F4_CR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_F4_CR, n); } else { /* write to 1 only. reset by hw at unlock sequence */ const uint32_t n = read_flash_cr(sl) | (1 << FLASH_CR_LOCK); - write_uint32(sl->q_buf, n); - stlink_write_mem32(sl, FLASH_CR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_CR, n); } } @@ -208,47 +202,40 @@ static void set_flash_cr_pg(stlink_t *sl) { if(sl->chip_id==STM32F4_CHIP_ID) { uint32_t x = read_flash_cr(sl); x |= (1 << FLASH_CR_PG); - write_uint32(sl->q_buf, x); - stlink_write_mem32(sl, FLASH_F4_CR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_F4_CR, x); } else { const uint32_t n = 1 << FLASH_CR_PG; - write_uint32(sl->q_buf, n); - stlink_write_mem32(sl, FLASH_CR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_CR, n); } } static void __attribute__((unused)) clear_flash_cr_pg(stlink_t *sl) { const uint32_t n = read_flash_cr(sl) & ~(1 << FLASH_CR_PG); - write_uint32(sl->q_buf, n); if(sl->chip_id==STM32F4_CHIP_ID) - stlink_write_mem32(sl, FLASH_F4_CR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_F4_CR, n); else - stlink_write_mem32(sl, FLASH_CR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_CR, n); } static void set_flash_cr_per(stlink_t *sl) { const uint32_t n = 1 << FLASH_CR_PER; - write_uint32(sl->q_buf, n); - stlink_write_mem32(sl, FLASH_CR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_CR, n); } static void __attribute__((unused)) clear_flash_cr_per(stlink_t *sl) { const uint32_t n = read_flash_cr(sl) & ~(1 << FLASH_CR_PER); - write_uint32(sl->q_buf, n); - stlink_write_mem32(sl, FLASH_CR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_CR, n); } static void set_flash_cr_mer(stlink_t *sl) { const uint32_t n = 1 << FLASH_CR_MER; - write_uint32(sl->q_buf, n); - stlink_write_mem32(sl, FLASH_CR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_CR, n); } static void __attribute__((unused)) clear_flash_cr_mer(stlink_t *sl) { const uint32_t n = read_flash_cr(sl) & ~(1 << FLASH_CR_MER); - write_uint32(sl->q_buf, n); - stlink_write_mem32(sl, FLASH_CR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_CR, n); } static void set_flash_cr_strt(stlink_t *sl) { @@ -256,29 +243,27 @@ static void set_flash_cr_strt(stlink_t *sl) { { uint32_t x = read_flash_cr(sl); x |= (1 << FLASH_F4_CR_STRT); - write_uint32(sl->q_buf, x); - stlink_write_mem32(sl, FLASH_F4_CR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_F4_CR, x); } else { /* assume come on the flash_cr_per path */ const uint32_t n = (1 << FLASH_CR_PER) | (1 << FLASH_CR_STRT); - write_uint32(sl->q_buf, n); - stlink_write_mem32(sl, FLASH_CR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_CR, n); } } static inline uint32_t read_flash_acr(stlink_t *sl) { - stlink_read_mem32(sl, FLASH_ACR, sizeof (uint32_t)); - return read_uint32(sl->q_buf, 0); + return stlink_read_debug32(sl, FLASH_ACR); } static inline uint32_t read_flash_sr(stlink_t *sl) { + uint32_t res; if(sl->chip_id==STM32F4_CHIP_ID) - stlink_read_mem32(sl, FLASH_F4_SR, sizeof (uint32_t)); + res = stlink_read_debug32(sl, FLASH_F4_SR); else - stlink_read_mem32(sl, FLASH_SR, sizeof (uint32_t)); + res = stlink_read_debug32(sl, FLASH_SR); //fprintf(stdout, "SR:0x%x\n", *(uint32_t*) sl->q_buf); - return read_uint32(sl->q_buf, 0); + return res; } static inline unsigned int is_flash_busy(stlink_t *sl) { @@ -300,8 +285,7 @@ static inline unsigned int is_flash_eop(stlink_t *sl) { static void __attribute__((unused)) clear_flash_sr_eop(stlink_t *sl) { const uint32_t n = read_flash_sr(sl) & ~(1 << FLASH_SR_EOP); - write_uint32(sl->q_buf, n); - stlink_write_mem32(sl, FLASH_SR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_SR, n); } static void __attribute__((unused)) wait_flash_eop(stlink_t *sl) { @@ -311,8 +295,7 @@ static void __attribute__((unused)) wait_flash_eop(stlink_t *sl) { } static inline void write_flash_ar(stlink_t *sl, uint32_t n) { - write_uint32(sl->q_buf, n); - stlink_write_mem32(sl, FLASH_AR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_AR, n); } static inline void write_flash_cr_psiz(stlink_t *sl, uint32_t n) { @@ -322,8 +305,7 @@ static inline void write_flash_cr_psiz(stlink_t *sl, uint32_t n) { #if DEBUG_FLASH fprintf(stdout, "PSIZ:0x%x 0x%x\n", x, n); #endif - write_uint32(sl->q_buf, x); - stlink_write_mem32(sl, FLASH_F4_CR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_F4_CR, x); } @@ -335,8 +317,7 @@ static inline void write_flash_cr_snb(stlink_t *sl, uint32_t n) { #if DEBUG_FLASH fprintf(stdout, "SNB:0x%x 0x%x\n", x, n); #endif - write_uint32(sl->q_buf, x); - stlink_write_mem32(sl, FLASH_F4_CR, sizeof (uint32_t)); + stlink_write_debug32(sl, FLASH_F4_CR, x); } #if 0 /* todo */ @@ -359,6 +340,7 @@ void stlink_close(stlink_t *sl) { void stlink_exit_debug_mode(stlink_t *sl) { DLOG("*** stlink_exit_debug_mode ***\n"); + stlink_write_debug32(sl, DHCSR, DBGKEY); sl->backend->exit_debug_mode(sl); } @@ -388,9 +370,7 @@ uint32_t stlink_core_id(stlink_t *sl) { } uint32_t stlink_chip_id(stlink_t *sl) { - stlink_read_mem32(sl, 0xE0042000, 4); - uint32_t chip_id = sl->q_buf[0] | (sl->q_buf[1] << 8) | (sl->q_buf[2] << 16) | - (sl->q_buf[3] << 24); + uint32_t chip_id = stlink_read_debug32(sl, 0xE0042000); return chip_id; } @@ -400,8 +380,7 @@ uint32_t stlink_chip_id(stlink_t *sl) { * @param cpuid pointer to the result object */ void stlink_cpu_id(stlink_t *sl, cortex_m3_cpuid_t *cpuid) { - stlink_read_mem32(sl, CM3_REG_CPUID, 4); - uint32_t raw = read_uint32(sl->q_buf, 0); + uint32_t raw = stlink_read_debug32(sl, CM3_REG_CPUID); cpuid->implementer_id = (raw >> 24) & 0x7f; cpuid->variant = (raw >> 20) & 0xf; cpuid->part = (raw >> 4) & 0xfff; @@ -448,8 +427,7 @@ int stlink_load_device_params(stlink_t *sl) { } else if ((chip_id & 0xFFF) == STM32_CHIPID_F4) { sl->flash_size = 0x100000; //todo: RM0090 error; size register same address as unique ID } else { - stlink_read_mem32(sl, params->flash_size_reg, 4); - uint32_t flash_size = sl->q_buf[0] | (sl->q_buf[1] << 8); + uint32_t flash_size = stlink_read_debug32(sl, params->flash_size_reg) & 0xffff; sl->flash_size = flash_size * 1024; } sl->flash_pgsz = params->flash_pagesize; @@ -529,6 +507,17 @@ void stlink_version(stlink_t *sl) { } } +uint32_t stlink_read_debug32(stlink_t *sl, uint32_t addr) { + uint32_t data = sl->backend->read_debug32(sl, addr); + DLOG("*** stlink_read_debug32 %x is %#x\n", data, addr); + return data; +} + +void stlink_write_debug32(stlink_t *sl, uint32_t addr, uint32_t data) { + DLOG("*** stlink_write_debug32 %x to %#x\n", data, addr); + sl->backend->write_debug32(sl, addr, data); +} + void stlink_write_mem32(stlink_t *sl, uint32_t addr, uint16_t len) { DLOG("*** stlink_write_mem32 %u bytes to %#x\n", len, addr); if (len % 4 != 0) { @@ -550,6 +539,11 @@ void stlink_read_mem32(stlink_t *sl, uint32_t addr, uint16_t len) { void stlink_write_mem8(stlink_t *sl, uint32_t addr, uint16_t len) { DLOG("*** stlink_write_mem8 ***\n"); + if (len > 0x40 ) { // !!! never ever: Writing more then 0x40 bytes gives unexpected behaviour + fprintf(stderr, "Error: Data length > 64: +%d byte.\n", + len); + return; + } sl->backend->write_mem8(sl, addr, len); } @@ -816,6 +810,8 @@ int stlink_fread(stlink_t* sl, const char* path, stm32_addr_t addr, size_t size) int error = -1; size_t off; + int num_empty = 0; + unsigned char erased_pattern =(sl->chip_id == STM32_CHIPID_L1_MEDIUM)?0:0xff; const int fd = open(path, O_RDWR | O_TRUNC | O_CREAT, 00700); if (fd == -1) { @@ -823,10 +819,17 @@ int stlink_fread(stlink_t* sl, const char* path, stm32_addr_t addr, size_t size) return -1; } + if (size <1) + size = sl->flash_size; + + if (size > sl->flash_size) + size = sl->flash_size; + /* do the copy by 1k blocks */ for (off = 0; off < size; off += 1024) { size_t read_size = 1024; size_t rounded_size; + size_t index; if ((off + read_size) > size) read_size = size - off; @@ -837,12 +840,21 @@ int stlink_fread(stlink_t* sl, const char* path, stm32_addr_t addr, size_t size) stlink_read_mem32(sl, addr + off, rounded_size); + for(index = 0; index < read_size; index ++) { + if (sl->q_buf[index] == erased_pattern) + num_empty ++; + else + num_empty = 0; + } if (write(fd, sl->q_buf, read_size) != (ssize_t) read_size) { fprintf(stderr, "write() != read_size\n"); goto on_error; } } + /* Ignore NULL Bytes at end of file */ + ftruncate(fd, size - num_empty); + /* success */ error = 0; @@ -854,8 +866,16 @@ on_error: int write_buffer_to_sram(stlink_t *sl, flash_loader_t* fl, const uint8_t* buf, size_t size) { /* write the buffer right after the loader */ - memcpy(sl->q_buf, buf, size); - stlink_write_mem8(sl, fl->buf_addr, size); + size_t chunk = size & ~0x3; + size_t rem = size & 0x3; + if (chunk) { + memcpy(sl->q_buf, buf, chunk); + stlink_write_mem32(sl, fl->buf_addr, chunk); + } + if (rem) { + memcpy(sl->q_buf, buf+chunk, rem); + stlink_write_mem8(sl, (fl->buf_addr)+chunk, rem); + } return 0; } @@ -888,7 +908,6 @@ uint32_t stlink_calculate_pagesize(stlink_t *sl, uint32_t flashaddr){ */ int stlink_erase_flash_page(stlink_t *sl, stm32_addr_t flashaddr) { - ILOG("Erasing flash page at addr: %#x\n", flashaddr); if (sl->chip_id == STM32F4_CHIP_ID) { /* wait for ongoing op to finish */ @@ -923,14 +942,11 @@ int stlink_erase_flash_page(stlink_t *sl, stm32_addr_t flashaddr) uint32_t val; /* disable pecr protection */ - write_uint32(sl->q_buf, 0x89abcdef); - stlink_write_mem32(sl, STM32L_FLASH_PEKEYR, sizeof(uint32_t)); - write_uint32(sl->q_buf, 0x02030405); - stlink_write_mem32(sl, STM32L_FLASH_PEKEYR, sizeof(uint32_t)); + stlink_write_debug32(sl, STM32L_FLASH_PEKEYR, 0x89abcdef); + stlink_write_debug32(sl, STM32L_FLASH_PEKEYR, 0x02030405); /* check pecr.pelock is cleared */ - stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t)); - val = read_uint32(sl->q_buf, 0); + val = stlink_read_debug32(sl, STM32L_FLASH_PECR); if (val & (1 << 0)) { WLOG("pecr.pelock not clear (%#x)\n", val); @@ -938,14 +954,11 @@ int stlink_erase_flash_page(stlink_t *sl, stm32_addr_t flashaddr) } /* unlock program memory */ - write_uint32(sl->q_buf, 0x8c9daebf); - stlink_write_mem32(sl, STM32L_FLASH_PRGKEYR, sizeof(uint32_t)); - write_uint32(sl->q_buf, 0x13141516); - stlink_write_mem32(sl, STM32L_FLASH_PRGKEYR, sizeof(uint32_t)); + stlink_write_debug32(sl, STM32L_FLASH_PRGKEYR, 0x8c9daebf); + stlink_write_debug32(sl, STM32L_FLASH_PRGKEYR, 0x13141516); /* check pecr.prglock is cleared */ - stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t)); - val = read_uint32(sl->q_buf, 0); + val = stlink_read_debug32(sl, STM32L_FLASH_PECR); if (val & (1 << 1)) { WLOG("pecr.prglock not clear (%#x)\n", val); @@ -954,14 +967,11 @@ int stlink_erase_flash_page(stlink_t *sl, stm32_addr_t flashaddr) /* unused: unlock the option byte block */ #if 0 - write_uint32(sl->q_buf, 0xfbead9c8); - stlink_write_mem32(sl, STM32L_FLASH_OPTKEYR, sizeof(uint32_t)); - write_uint32(sl->q_buf, 0x24252627); - stlink_write_mem32(sl, STM32L_FLASH_OPTKEYR, sizeof(uint32_t)); + stlink_write_debug32(sl, STM32L_FLASH_OPTKEYR, 0xfbead9c8); + stlink_write_debug32(sl, STM32L_FLASH_OPTKEYR, 0x24252627); /* check pecr.optlock is cleared */ - stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t)); - val = read_uint32(sl->q_buf, 0); + val = stlink_read_debug32(sl, STM32L_FLASH_PECR); if (val & (1 << 2)) { fprintf(stderr, "pecr.prglock not clear\n"); @@ -971,8 +981,7 @@ int stlink_erase_flash_page(stlink_t *sl, stm32_addr_t flashaddr) /* set pecr.{erase,prog} */ val |= (1 << 9) | (1 << 3); - write_uint32(sl->q_buf, val); - stlink_write_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t)); + stlink_write_debug32(sl, STM32L_FLASH_PECR, val); #if 0 /* fix_to_be_confirmed */ @@ -982,33 +991,27 @@ int stlink_erase_flash_page(stlink_t *sl, stm32_addr_t flashaddr) TEXANE: ok, if experience says so and it works for you, we comment it. If someone has a problem, please drop an email. */ - while (1) + while ((stlink_read_debug32(sl, STM32L_FLASH_SR) & (1 << 0)) != 0) { - stlink_read_mem32(sl, STM32L_FLASH_SR, sizeof(uint32_t)); - if ((read_uint32(sl->q_buf, 0) & (1 << 0)) == 0) break ; } #endif /* fix_to_be_confirmed */ /* write 0 to the first word of the page to be erased */ - memset(sl->q_buf, 0, sizeof(uint32_t)); - stlink_write_mem32(sl, flashaddr, sizeof(uint32_t)); + stlink_write_debug32(sl, flashaddr, 0); /* MP: It is better to wait for clearing the busy bit after issuing page erase command, even though PM0062 recommends to wait before it. Test shows that a few iterations is performed in the following loop before busy bit is cleared.*/ - while (1) + while ((stlink_read_debug32(sl, STM32L_FLASH_SR) & (1 << 0)) != 0) { - stlink_read_mem32(sl, STM32L_FLASH_SR, sizeof(uint32_t)); - if ((read_uint32(sl->q_buf, 0) & (1 << 0)) == 0) break; } /* reset lock bits */ - stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t)); - val = read_uint32(sl->q_buf, 0) | (1 << 0) | (1 << 1) | (1 << 2); - write_uint32(sl->q_buf, val); - stlink_write_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t)); + val = stlink_read_debug32(sl, STM32L_FLASH_PECR) + | (1 << 0) | (1 << 1) | (1 << 2); + stlink_write_debug32(sl, STM32L_FLASH_PECR, val); } else if (sl->core_id == STM32VL_CORE_ID) { @@ -1211,6 +1214,57 @@ int stlink_verify_write_flash(stlink_t *sl, stm32_addr_t address, uint8_t *data, } +int stm32l1_write_half_pages(stlink_t *sl, stm32_addr_t addr, uint8_t* base, unsigned num_half_pages) +{ + unsigned int count; + uint32_t val; + flash_loader_t fl; + + ILOG("Starting Half page flash write for STM32L core id\n"); + /* flash loader initialization */ + if (init_flash_loader(sl, &fl) == -1) { + WLOG("init_flash_loader() == -1\n"); + return -1; + } + /* Unlock already done */ + val = stlink_read_debug32(sl, STM32L_FLASH_PECR); + val |= (1 << FLASH_L1_FPRG); + stlink_write_debug32(sl, STM32L_FLASH_PECR, val); + + val |= (1 << FLASH_L1_PROG); + stlink_write_debug32(sl, STM32L_FLASH_PECR, val); + while ((stlink_read_debug32(sl, STM32L_FLASH_SR) & (1 << 0)) != 0) {} + +#define L1_WRITE_BLOCK_SIZE 0x80 + for (count = 0; count < num_half_pages; count ++) { + if (run_flash_loader(sl, &fl, addr + count * L1_WRITE_BLOCK_SIZE, base + count * L1_WRITE_BLOCK_SIZE, L1_WRITE_BLOCK_SIZE) == -1) { + WLOG("l1_run_flash_loader(%#zx) failed! == -1\n", addr + count * L1_WRITE_BLOCK_SIZE); + val = stlink_read_debug32(sl, STM32L_FLASH_PECR); + val &= ~((1 << FLASH_L1_FPRG) |(1 << FLASH_L1_PROG)); + stlink_write_debug32(sl, STM32L_FLASH_PECR, val); + return -1; + } + /* wait for sr.busy to be cleared */ + if (sl->verbose >= 1) { + /* show progress. writing procedure is slow + and previous errors are misleading */ + fprintf(stdout, "\r%3u/%u halfpages written", count, num_half_pages); + fflush(stdout); + } + while ((stlink_read_debug32(sl, STM32L_FLASH_SR) & (1 << 0)) != 0) { + } + } + fprintf(stdout, "\n"); + val = stlink_read_debug32(sl, STM32L_FLASH_PECR); + val &= ~(1 << FLASH_L1_PROG); + stlink_write_debug32(sl, STM32L_FLASH_PECR, val); + val = stlink_read_debug32(sl, STM32L_FLASH_PECR); + val &= ~(1 << FLASH_L1_FPRG); + stlink_write_debug32(sl, STM32L_FLASH_PECR, val); + + return 0; +} + int stlink_write_flash(stlink_t *sl, stm32_addr_t addr, uint8_t* base, unsigned len) { size_t off; flash_loader_t fl; @@ -1245,8 +1299,11 @@ int stlink_write_flash(stlink_t *sl, stm32_addr_t addr, uint8_t* base, unsigned WLOG("Failed to erase_flash_page(%#zx) == -1\n", addr + off); return -1; } + fprintf(stdout,"\rFlash page at addr: 0x%08lx erased", addr + off); + fflush(stdout); page_count++; } + fprintf(stdout,"\n"); ILOG("Finished erasing %d pages of %d (%#x) bytes\n", page_count, sl->flash_pgsz, sl->flash_pgsz); @@ -1256,6 +1313,7 @@ int stlink_write_flash(stlink_t *sl, stm32_addr_t addr, uint8_t* base, unsigned /* First unlock the cr */ unlock_flash_if(sl); + /* TODO: Check that Voltage range is 2.7 - 3.6 V */ /* set parallelisim to 32 bit*/ write_flash_cr_psiz(sl, 2); @@ -1265,6 +1323,7 @@ int stlink_write_flash(stlink_t *sl, stm32_addr_t addr, uint8_t* base, unsigned #define PROGRESS_CHUNK_SIZE 0x1000 /* write a word in program memory */ for (off = 0; off < len; off += sizeof(uint32_t)) { + uint32_t data; if (sl->verbose >= 1) { if ((off & (PROGRESS_CHUNK_SIZE - 1)) == 0) { /* show progress. writing procedure is slow @@ -1275,8 +1334,8 @@ int stlink_write_flash(stlink_t *sl, stm32_addr_t addr, uint8_t* base, unsigned } } - memcpy(sl->q_buf, (const void*)(base + off), sizeof(uint32_t)); - stlink_write_mem32(sl, addr + off, sizeof(uint32_t)); + write_uint32((unsigned char*) &data, *(uint32_t*) (base + off)); + stlink_write_debug32(sl, addr + off, data); /* wait for sr.busy to be cleared */ wait_flash_busy(sl); @@ -1306,59 +1365,48 @@ int stlink_write_flash(stlink_t *sl, stm32_addr_t addr, uint8_t* base, unsigned #endif /* todo: check write operation */ /* disable pecr protection */ - write_uint32(sl->q_buf, 0x89abcdef); - stlink_write_mem32(sl, STM32L_FLASH_PEKEYR, sizeof(uint32_t)); - write_uint32(sl->q_buf, 0x02030405); - stlink_write_mem32(sl, STM32L_FLASH_PEKEYR, sizeof(uint32_t)); + stlink_write_debug32(sl, STM32L_FLASH_PEKEYR, 0x89abcdef); + stlink_write_debug32(sl, STM32L_FLASH_PEKEYR, 0x02030405); /* check pecr.pelock is cleared */ - stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t)); - val = read_uint32(sl->q_buf, 0); + val = stlink_read_debug32(sl, STM32L_FLASH_PECR); if (val & (1 << 0)) { fprintf(stderr, "pecr.pelock not clear\n"); return -1; } /* unlock program memory */ - write_uint32(sl->q_buf, 0x8c9daebf); - stlink_write_mem32(sl, STM32L_FLASH_PRGKEYR, sizeof(uint32_t)); - write_uint32(sl->q_buf, 0x13141516); - stlink_write_mem32(sl, STM32L_FLASH_PRGKEYR, sizeof(uint32_t)); + stlink_write_debug32(sl, STM32L_FLASH_PRGKEYR, 0x8c9daebf); + stlink_write_debug32(sl, STM32L_FLASH_PRGKEYR, 0x13141516); /* check pecr.prglock is cleared */ - stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t)); - val = read_uint32(sl->q_buf, 0); + val = stlink_read_debug32(sl, STM32L_FLASH_PECR); if (val & (1 << 1)) { fprintf(stderr, "pecr.prglock not clear\n"); return -1; } + if (len > L1_WRITE_BLOCK_SIZE) { + if (stm32l1_write_half_pages(sl, addr, base, len/L1_WRITE_BLOCK_SIZE) == -1){ + WLOG("\nwrite_half_pages failed == -1\n"); + return -1; + } + } - /* write a word in program memory */ - for (off = 0; off < len; off += sizeof(uint32_t)) { - if (sl->verbose >= 1) { - if ((off & (sl->flash_pgsz - 1)) == 0) { - /* show progress. writing procedure is slow - and previous errors are misleading */ - const uint32_t pgnum = off / sl->flash_pgsz; - const uint32_t pgcount = len / sl->flash_pgsz; - fprintf(stdout, "%u pages written out of %u\n", pgnum, pgcount); - } - } - - memcpy(sl->q_buf, (const void*)(base + off), sizeof(uint32_t)); - stlink_write_mem32(sl, addr + off, sizeof(uint32_t)); + /* write remainingword in program memory */ + for (off = (len /L1_WRITE_BLOCK_SIZE)*L1_WRITE_BLOCK_SIZE; off < len; off += sizeof(uint32_t)) { + uint32_t data; + write_uint32((unsigned char*) &data, *(uint32_t*) (base + off)); + stlink_write_debug32(sl, addr + off, data); /* wait for sr.busy to be cleared */ - while (1) { - stlink_read_mem32(sl, STM32L_FLASH_SR, sizeof(uint32_t)); - if ((read_uint32(sl->q_buf, 0) & (1 << 0)) == 0) break ; + while ((stlink_read_debug32(sl, STM32L_FLASH_SR) & (1 << 0)) != 0) { } #if 0 /* todo: check redo write operation */ /* check written bytes. todo: should be on a per page basis. */ - stlink_read_mem32(sl, addr + off, sizeof(uint32_t)); - if (memcmp(sl->q_buf, base + off, sizeof(uint32_t))) { + data = stlink_read_debug32(sl, addr + off); + if (data == *(uint32_t*)(base + off)) { /* re erase the page and redo the write operation */ uint32_t page; uint32_t val; @@ -1379,10 +1427,9 @@ int stlink_write_flash(stlink_t *sl, stm32_addr_t addr, uint8_t* base, unsigned page, addr + off, read_uint32(base + off, 0), read_uint32(sl->q_buf, 0)); /* reset lock bits */ - stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t)); - val = read_uint32(sl->q_buf, 0) | (1 << 0) | (1 << 1) | (1 << 2); - write_uint32(sl->q_buf, val); - stlink_write_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t)); + val = stlink_read_debug32(sl, STM32L_FLASH_PECR) + | (1 << 0) | (1 << 1) | (1 << 2); + stlink_write_debug32(sl, STM32L_FLASH_PECR, val); stlink_erase_flash_page(sl, page); @@ -1394,11 +1441,11 @@ int stlink_write_flash(stlink_t *sl, stm32_addr_t addr, uint8_t* base, unsigned #endif /* todo: check redo write operation */ } + fprintf(stdout, "\n"); /* reset lock bits */ - stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t)); - val = read_uint32(sl->q_buf, 0) | (1 << 0) | (1 << 1) | (1 << 2); - write_uint32(sl->q_buf, val); - stlink_write_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t)); + val = stlink_read_debug32(sl, STM32L_FLASH_PECR) + | (1 << 0) | (1 << 1) | (1 << 2); + stlink_write_debug32(sl, STM32L_FLASH_PECR, val); } else if (sl->core_id == STM32VL_CORE_ID) { ILOG("Starting Flash write for VL core id\n"); /* flash loader initialization */ @@ -1446,11 +1493,23 @@ int stlink_write_flash(stlink_t *sl, stm32_addr_t addr, uint8_t* base, unsigned int stlink_fwrite_flash(stlink_t *sl, const char* path, stm32_addr_t addr) { /* write the file in flash at addr */ int err; + unsigned int num_empty = 0, index; + unsigned char erased_pattern =(sl->chip_id == STM32_CHIPID_L1_MEDIUM)?0:0xff; mapped_file_t mf = MAPPED_FILE_INITIALIZER; if (map_file(&mf, path) == -1) { WLOG("map_file() == -1\n"); return -1; } + for(index = 0; index < mf.len; index ++) { + if (mf.base[index] == erased_pattern) + num_empty ++; + else + num_empty = 0; + } + if(num_empty != 0) { + ILOG("Ignoring %d bytes of Zeros at end of file\n",num_empty); + mf.len -= num_empty; + } err = stlink_write_flash(sl, addr, mf.base, mf.len); unmap_file(&mf); return err; @@ -1459,6 +1518,7 @@ int stlink_fwrite_flash(stlink_t *sl, const char* path, stm32_addr_t addr) { int run_flash_loader(stlink_t *sl, flash_loader_t* fl, stm32_addr_t target, const uint8_t* buf, size_t size) { reg rr; + int i = 0; DLOG("Running flash loader, write address:%#x, size: %zd\n", target, size); // FIXME This can never return -1 if (write_buffer_to_sram(sl, fl, buf, size) == -1) { @@ -1476,7 +1536,6 @@ int run_flash_loader(stlink_t *sl, flash_loader_t* fl, stm32_addr_t target, cons stlink_write_reg(sl, target, 0); /* target */ stlink_write_reg(sl, fl->buf_addr, 1); /* source */ stlink_write_reg(sl, count, 2); /* count (32 bits words) */ - stlink_write_reg(sl, 0, 3); /* output count */ stlink_write_reg(sl, fl->loader_addr, 15); /* pc register */ } else if (sl->core_id == STM32VL_CORE_ID) { @@ -1500,8 +1559,16 @@ int run_flash_loader(stlink_t *sl, flash_loader_t* fl, stm32_addr_t target, cons stlink_run(sl); /* wait until done (reaches breakpoint) */ - while (is_core_halted(sl) == 0) ; + while ((is_core_halted(sl) == 0) && (i <10000)) + { + i++; + } + if ( i > 9999) { + fprintf(stderr, "run error\n"); + return -1; + } + /* check written byte count */ if (sl->core_id == STM32L_CORE_ID) {