openpilot v0.9.6 release

date: 2024-02-21T23:02:42
master commit: 0b4d08fab8e35a264bc7383e878538f8083c33e5

body/board/drivers/llflash.h

@@ -0,0 +1,26 @@
+bool flash_is_locked(void) {
+  return (FLASH->CR & FLASH_CR_LOCK);
+}
+
+void flash_unlock(void) {
+  FLASH->KEYR = 0x45670123;
+  FLASH->KEYR = 0xCDEF89AB;
+}
+
+bool flash_erase_sector(uint8_t sector, bool unlocked) {
+  // don't erase the bootloader(sector 0)
+  if (sector != 0 && sector < 12 && unlocked) {
+    FLASH->CR = (sector << 3) | FLASH_CR_SER;
+    FLASH->CR |= FLASH_CR_STRT;
+    while (FLASH->SR & FLASH_SR_BSY);
+    return true;
+  }
+  return false;
+}
+
+void flash_write_word(void *prog_ptr, uint32_t data) {
+  uint32_t *pp = prog_ptr;
+  FLASH->CR = FLASH_CR_PSIZE_1 | FLASH_CR_PG;
+  *pp = data;
+  while (FLASH->SR & FLASH_SR_BSY);
+}