status_code_t nvm_write(mem_type_t mem, uint32_t address, void *buffer,
uint32_t len)
{
switch (mem) {
case INT_FLASH:
case INT_USERPAGE:
flash_api_memcpy((volatile void *)address, (const void *)buffer,
len, true);
break;
#if defined(USE_EXTMEM) && defined(CONF_BOARD_AT45DBX)
case AT45DBX:
{
uint32_t sector = address / AT45DBX_SECTOR_SIZE;
if (!at45dbx_write_sector_open(sector)) {
return ERR_BAD_ADDRESS;
}
at45dbx_write_sector_from_ram((const void *)buffer);
at45dbx_write_close();
}
break;
#endif
default:
return ERR_INVALID_ARG;
}
return STATUS_OK;
}
status_code_t nvm_write_char(mem_type_t mem, uint32_t address, uint8_t data)
{
switch (mem) {
case INT_FLASH:
case INT_USERPAGE:
flash_api_memcpy((volatile void *)address, (const void *)&data,
1, true);
break;
#if defined(USE_EXTMEM) && defined(CONF_BOARD_AT45DBX)
case AT45DBX:
if (!at45dbx_write_byte_open(address)) {
return ERR_BAD_ADDRESS;
}
at45dbx_write_byte(data);
at45dbx_write_close();
#endif
default:
return ERR_INVALID_ARG;
}
return STATUS_OK;
}
void isp_force_boot_isp(bool force)
{
uint32_t tempo;
uint8_t crc8 = 0;
uint8_t i;
// Read the config word1 and set the ISP_FORCE bit to force.
tempo = (BOOT_CFG1 & ~BOOT_CFG1_FORCE_MASK)
| ((force << BOOT_CFG1_FORCE_OFFSET) & BOOT_CFG1_FORCE_MASK);
// Compute the CRC8 on the 3 upper Bytes of the word1.
for (i = 24; i; i -= 8)
crc8 = isp_crc8(crc8, tempo >> i);
// Write CRC8 in word1.
tempo = (tempo & ~BOOT_CFG1_CRC8_MASK)
| ((crc8 << BOOT_CFG1_CRC8_OFFSET) & BOOT_CFG1_CRC8_MASK);
// Write the config word1 in user flash.
flash_api_memcpy((volatile void*) BOOT_CFG1_ADDRESS, &tempo, 4, true);
}
/**
* \brief Copy a RAM buffer to a user page memory section
*
* \param dst Pointer to user page destination.
* \param src Pointer to source data.
* \param nbytes Number of bytes to transfer.
*/
static void mem_user_write(isp_addr_t dst, const void *src, uint16_t nbytes)
{
flash_api_memcpy(FLASH_API_USER_PAGE + dst, src, nbytes, true);
}
/**
* \brief Copy a RAM buffer to a flash memory section
*
* \param dst Pointer to flash destination.
* \param src Pointer to source data.
* \param nbytes Number of bytes to transfer.
*/
static void mem_flash_write(isp_addr_t dst, const void *src, uint16_t nbytes)
{
flash_api_memcpy(FLASH_API_BASE_ADDRESS + dst, src, nbytes, false);
}
