diff options
Diffstat (limited to 'tmk_core/common/arm_atsam/bootloader.c')
| -rw-r--r-- | tmk_core/common/arm_atsam/bootloader.c | 46 |
1 files changed, 26 insertions, 20 deletions
diff --git a/tmk_core/common/arm_atsam/bootloader.c b/tmk_core/common/arm_atsam/bootloader.c index ba71bfeb0b..9015b00aab 100644 --- a/tmk_core/common/arm_atsam/bootloader.c +++ b/tmk_core/common/arm_atsam/bootloader.c @@ -18,34 +18,40 @@ #include "samd51j18a.h" #include "md_bootloader.h" -//Set watchdog timer to reset. Directs the bootloader to stay in programming mode. +// Set watchdog timer to reset. Directs the bootloader to stay in programming mode. void bootloader_jump(void) { #ifdef KEYBOARD_massdrop_ctrl - //CTRL keyboards released with bootloader version below must use RAM method. Otherwise use WDT method. - uint8_t ver_ram_method[] = "v2.18Jun 22 2018 17:28:08"; //The version to match (NULL terminated by compiler) - uint8_t *ver_check = ver_ram_method; //Pointer to version match string for traversal - uint8_t *ver_rom = (uint8_t *)0x21A0; //Pointer to address in ROM where this specific bootloader version would exist + // CTRL keyboards released with bootloader version below must use RAM method. Otherwise use WDT method. + uint8_t ver_ram_method[] = "v2.18Jun 22 2018 17:28:08"; // The version to match (NULL terminated by compiler) + uint8_t *ver_check = ver_ram_method; // Pointer to version match string for traversal + uint8_t *ver_rom = (uint8_t *)0x21A0; // Pointer to address in ROM where this specific bootloader version would exist - while (*ver_check && *ver_rom == *ver_check) { //While there are check version characters to match and bootloader's version matches check's version - ver_check++; //Move check version pointer to next character - ver_rom++; //Move ROM version pointer to next character + while (*ver_check && *ver_rom == *ver_check) { // While there are check version characters to match and bootloader's version matches check's version + ver_check++; // Move check version pointer to next character + ver_rom++; // Move ROM version pointer to next character } - if (!*ver_check) { //If check version pointer is NULL, all characters have matched - *MAGIC_ADDR = BOOTLOADER_MAGIC; //Set magic number into RAM - NVIC_SystemReset(); //Perform system reset - while (1) {} //Won't get here + if (!*ver_check) { // If check version pointer is NULL, all characters have matched + *MAGIC_ADDR = BOOTLOADER_MAGIC; // Set magic number into RAM + NVIC_SystemReset(); // Perform system reset + while (1) { + } // Won't get here } #endif WDT->CTRLA.bit.ENABLE = 0; - while (WDT->SYNCBUSY.bit.ENABLE) {} - while (WDT->CTRLA.bit.ENABLE) {} - WDT->CONFIG.bit.WINDOW = 0; - WDT->CONFIG.bit.PER = 0; + while (WDT->SYNCBUSY.bit.ENABLE) { + } + while (WDT->CTRLA.bit.ENABLE) { + } + WDT->CONFIG.bit.WINDOW = 0; + WDT->CONFIG.bit.PER = 0; WDT->EWCTRL.bit.EWOFFSET = 0; - WDT->CTRLA.bit.ENABLE = 1; - while (WDT->SYNCBUSY.bit.ENABLE) {} - while (!WDT->CTRLA.bit.ENABLE) {} - while (1) {} //Wait on timeout + WDT->CTRLA.bit.ENABLE = 1; + while (WDT->SYNCBUSY.bit.ENABLE) { + } + while (!WDT->CTRLA.bit.ENABLE) { + } + while (1) { + } // Wait on timeout } |