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Add nRF51 command for (only) erasing the UICR registers 

Original implementation by: Benjamin Vedder <benjamin@vedder.se>
This commit is contained in:
Björn Mellström 2021-06-03 12:58:05 +02:00
parent d987a8dd8c
commit 5ea01030e2
1 changed files with 27 additions and 0 deletions
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27
src/target/nrf51.c
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@ -31,6 +31,7 @@ static int nrf51_flash_write(struct target_flash *f,
target_addr dest, const void *src, size_t len); target_addr dest, const void *src, size_t len);
static bool nrf51_cmd_erase_all(target *t, int argc, const char **argv); static bool nrf51_cmd_erase_all(target *t, int argc, const char **argv);
static bool nrf51_cmd_erase_uicr(target *t, int argc, const char **argv);
static bool nrf51_cmd_read_hwid(target *t, int argc, const char **argv); static bool nrf51_cmd_read_hwid(target *t, int argc, const char **argv);
static bool nrf51_cmd_read_fwid(target *t, int argc, const char **argv); static bool nrf51_cmd_read_fwid(target *t, int argc, const char **argv);
static bool nrf51_cmd_read_deviceid(target *t, int argc, const char **argv); static bool nrf51_cmd_read_deviceid(target *t, int argc, const char **argv);
@ -41,6 +42,7 @@ static bool nrf51_cmd_read(target *t, int argc, const char **argv);
const struct command_s nrf51_cmd_list[] = { const struct command_s nrf51_cmd_list[] = {
{"erase_mass", (cmd_handler)nrf51_cmd_erase_all, "Erase entire flash memory"}, {"erase_mass", (cmd_handler)nrf51_cmd_erase_all, "Erase entire flash memory"},
{"erase_uicr", (cmd_handler)nrf51_cmd_erase_uicr, "Erase UICR registers"},
{"read", (cmd_handler)nrf51_cmd_read, "Read device parameters"}, {"read", (cmd_handler)nrf51_cmd_read, "Read device parameters"},
{NULL, NULL, NULL} {NULL, NULL, NULL}
}; };
@ -244,6 +246,31 @@ static bool nrf51_cmd_erase_all(target *t, int argc, const char **argv)
return true; return true;
} }
static bool nrf51_cmd_erase_uicr(target *t, int argc, const char **argv)
{
(void)argc;
(void)argv;
tc_printf(t, "erase..\n");
/* Enable erase */
target_mem_write32(t, NRF51_NVMC_CONFIG, NRF51_NVMC_CONFIG_EEN);
/* Poll for NVMC_READY */
while (target_mem_read32(t, NRF51_NVMC_READY) == 0)
if(target_check_error(t))
return false;
/* Erase UICR */
target_mem_write32(t, NRF51_NVMC_ERASEUICR, 1);
/* Poll for NVMC_READY */
while (target_mem_read32(t, NRF51_NVMC_READY) == 0)
if(target_check_error(t))
return false;
return true;
}
static bool nrf51_cmd_read_hwid(target *t, int argc, const char **argv) static bool nrf51_cmd_read_hwid(target *t, int argc, const char **argv)
{ {
(void)argc; (void)argc;