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fix subscripting

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This commit is contained in:
Dan Halbert 2019-04-10 21:41:55 -04:00
parent 3618461f9b
commit 864910559b
3 changed files with 13 additions and 14 deletions
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2
ports/nrf/common-hal/microcontroller/__init__.c
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@ -74,6 +74,8 @@ const nvm_bytearray_obj_t common_hal_mcu_nvm_obj = {
.base = {
.type = &nvm_bytearray_type,
},
.len = CIRCUITPY_INTERNAL_NVM_SIZE,
.start_address = (uint8_t*) (FLASH_SIZE - CIRCUITPY_INTERNAL_NVM_SIZE),
};
#endif

23
ports/nrf/common-hal/nvm/ByteArray.c
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@ -35,37 +35,34 @@
extern uint32_t __fatfs_flash_start_addr[];
extern uint32_t __fatfs_flash_length[];
#define NVM_START_ADDR ((uint32_t)__fatfs_flash_start_addr + \
(uint32_t)__fatfs_flash_length - CIRCUITPY_INTERNAL_NVM_SIZE)
uint32_t common_hal_nvm_bytearray_get_length(nvm_bytearray_obj_t *self) {
return CIRCUITPY_INTERNAL_NVM_SIZE;
return self->len;
}
static void write_page(uint32_t page_addr, uint32_t offset, uint32_t len, uint8_t *bytes) {
// Write a whole page to flash, buffering it first and then erasing and rewriting
static void write_page(uint8_t* page_addr, uint32_t offset, uint32_t len, uint8_t *bytes) {
// Write a whole page to flash, buffering it first and then erasing and rewriting
// it since we can only clear a whole page at a time.
if (offset == 0 && len == FLASH_PAGE_SIZE) {
nrf_nvm_safe_flash_page_write(page_addr, bytes);
nrf_nvm_safe_flash_page_write((uint32_t) page_addr, bytes);
} else {
uint8_t buffer[FLASH_PAGE_SIZE];
memcpy(buffer, (uint8_t *)page_addr, FLASH_PAGE_SIZE);
memcpy(buffer, page_addr, FLASH_PAGE_SIZE);
memcpy(buffer + offset, bytes, len);
nrf_nvm_safe_flash_page_write(page_addr, buffer);
nrf_nvm_safe_flash_page_write((uint32_t) page_addr, buffer);
}
}
bool common_hal_nvm_bytearray_set_bytes(nvm_bytearray_obj_t *self,
uint32_t start_index, uint8_t* values, uint32_t len) {
uint32_t address = NVM_START_ADDR + start_index;
uint32_t address = ((uint32_t) self->start_address) + start_index;
uint32_t offset = address % FLASH_PAGE_SIZE;
uint32_t page_addr = address - offset;
while (len) {
uint32_t write_len = MIN(len, FLASH_PAGE_SIZE - offset);
write_page(page_addr, offset, write_len, values);
write_page((uint8_t*) page_addr, offset, write_len, values);
len -= write_len;
values += write_len;
page_addr += FLASH_PAGE_SIZE;
@ -75,6 +72,6 @@ bool common_hal_nvm_bytearray_set_bytes(nvm_bytearray_obj_t *self,
}
void common_hal_nvm_bytearray_get_bytes(nvm_bytearray_obj_t *self,
uint32_t start_index, uint32_t len, uint8_t* values) {
memcpy(values, (uint8_t *)(NVM_START_ADDR + start_index), len);
uint32_t start_index, uint32_t len, uint8_t* values) {
memcpy(values, self->start_address + start_index, len);
}

2
ports/nrf/common-hal/nvm/ByteArray.h
View File

@ -31,7 +31,7 @@
typedef struct {
mp_obj_base_t base;
uint32_t start_address;
uint8_t* start_address;
uint32_t len;
} nvm_bytearray_obj_t;