diff --git a/Makefile b/Makefile index 7000534af0..859ce6c413 100644 --- a/Makefile +++ b/Makefile @@ -100,7 +100,7 @@ INCLUDE_DIRS := $(INCLUDE_DIRS) \ $(CMSIS_DIR)/CM3/CoreSupport \ $(CMSIS_DIR)/CM3/DeviceSupport/ST/STM32F10x \ -LD_SCRIPT = $(ROOT)/stm32_flash_f103.ld +LD_SCRIPT = $(ROOT)/stm32_flash_f103_128k.ld ARCH_FLAGS = -mthumb -mcpu=cortex-m3 TARGET_FLAGS = -D$(TARGET) -pedantic @@ -227,6 +227,10 @@ OLIMEXINO_SRC = startup_stm32f10x_md_gcc.S \ $(HIGHEND_SRC) \ $(COMMON_SRC) +ifeq ($(TARGET),CJMCU) +LD_SCRIPT = $(ROOT)/stm32_flash_f103_64k.ld +endif + CJMCU_SRC = startup_stm32f10x_md_gcc.S \ drivers/adc.c \ drivers/adc_stm32f10x.c \ diff --git a/src/main/drivers/pwm_mapping.c b/src/main/drivers/pwm_mapping.c index 52ec37fb9e..ee01adb036 100755 --- a/src/main/drivers/pwm_mapping.c +++ b/src/main/drivers/pwm_mapping.c @@ -63,161 +63,166 @@ */ enum { - TYPE_IP = 1, - TYPE_IW, - TYPE_M, - TYPE_S, + MAP_TO_PPM_INPUT = 1, + MAP_TO_PWM_INPUT, + MAP_TO_MOTOR_OUTPUT, + MAP_TO_SERVO_OUTPUT, }; #if defined(NAZE) || defined(OLIMEXINO) || defined(NAZE32PRO) || defined(STM32F3DISCOVERY) static const uint16_t multiPPM[] = { - PWM1 | (TYPE_IP << 8), // PPM input - PWM9 | (TYPE_M << 8), // Swap to servo if needed - PWM10 | (TYPE_M << 8), // Swap to servo if needed - PWM11 | (TYPE_M << 8), - PWM12 | (TYPE_M << 8), - PWM13 | (TYPE_M << 8), - PWM14 | (TYPE_M << 8), - PWM5 | (TYPE_M << 8), // Swap to servo if needed - PWM6 | (TYPE_M << 8), // Swap to servo if needed - PWM7 | (TYPE_M << 8), // Swap to servo if needed - PWM8 | (TYPE_M << 8), // Swap to servo if needed + PWM1 | (MAP_TO_PPM_INPUT << 8), // PPM input + PWM9 | (MAP_TO_MOTOR_OUTPUT << 8), // Swap to servo if needed + PWM10 | (MAP_TO_MOTOR_OUTPUT << 8), // Swap to servo if needed + PWM11 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM12 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM13 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM14 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM5 | (MAP_TO_MOTOR_OUTPUT << 8), // Swap to servo if needed + PWM6 | (MAP_TO_MOTOR_OUTPUT << 8), // Swap to servo if needed + PWM7 | (MAP_TO_MOTOR_OUTPUT << 8), // Swap to servo if needed + PWM8 | (MAP_TO_MOTOR_OUTPUT << 8), // Swap to servo if needed 0xFFFF }; static const uint16_t multiPWM[] = { - PWM1 | (TYPE_IW << 8), // input #1 - PWM2 | (TYPE_IW << 8), - PWM3 | (TYPE_IW << 8), - PWM4 | (TYPE_IW << 8), - PWM5 | (TYPE_IW << 8), - PWM6 | (TYPE_IW << 8), - PWM7 | (TYPE_IW << 8), - PWM8 | (TYPE_IW << 8), // input #8 - PWM9 | (TYPE_M << 8), // motor #1 or servo #1 (swap to servo if needed) - PWM10 | (TYPE_M << 8), // motor #2 or servo #2 (swap to servo if needed) - PWM11 | (TYPE_M << 8), // motor #1 or #3 - PWM12 | (TYPE_M << 8), - PWM13 | (TYPE_M << 8), - PWM14 | (TYPE_M << 8), // motor #4 or #6 + PWM1 | (MAP_TO_PWM_INPUT << 8), // input #1 + PWM2 | (MAP_TO_PWM_INPUT << 8), + PWM3 | (MAP_TO_PWM_INPUT << 8), + PWM4 | (MAP_TO_PWM_INPUT << 8), + PWM5 | (MAP_TO_PWM_INPUT << 8), + PWM6 | (MAP_TO_PWM_INPUT << 8), + PWM7 | (MAP_TO_PWM_INPUT << 8), + PWM8 | (MAP_TO_PWM_INPUT << 8), // input #8 + PWM9 | (MAP_TO_MOTOR_OUTPUT << 8), // motor #1 or servo #1 (swap to servo if needed) + PWM10 | (MAP_TO_MOTOR_OUTPUT << 8), // motor #2 or servo #2 (swap to servo if needed) + PWM11 | (MAP_TO_MOTOR_OUTPUT << 8), // motor #1 or #3 + PWM12 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM13 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM14 | (MAP_TO_MOTOR_OUTPUT << 8), // motor #4 or #6 0xFFFF }; static const uint16_t airPPM[] = { - PWM1 | (TYPE_IP << 8), // PPM input - PWM9 | (TYPE_M << 8), // motor #1 - PWM10 | (TYPE_M << 8), // motor #2 - PWM11 | (TYPE_S << 8), // servo #1 - PWM12 | (TYPE_S << 8), - PWM13 | (TYPE_S << 8), - PWM14 | (TYPE_S << 8), // servo #4 - PWM5 | (TYPE_S << 8), // servo #5 - PWM6 | (TYPE_S << 8), - PWM7 | (TYPE_S << 8), - PWM8 | (TYPE_S << 8), // servo #8 + PWM1 | (MAP_TO_PPM_INPUT << 8), // PPM input + PWM9 | (MAP_TO_MOTOR_OUTPUT << 8), // motor #1 + PWM10 | (MAP_TO_MOTOR_OUTPUT << 8), // motor #2 + PWM11 | (MAP_TO_SERVO_OUTPUT << 8), // servo #1 + PWM12 | (MAP_TO_SERVO_OUTPUT << 8), + PWM13 | (MAP_TO_SERVO_OUTPUT << 8), + PWM14 | (MAP_TO_SERVO_OUTPUT << 8), // servo #4 + PWM5 | (MAP_TO_SERVO_OUTPUT << 8), // servo #5 + PWM6 | (MAP_TO_SERVO_OUTPUT << 8), + PWM7 | (MAP_TO_SERVO_OUTPUT << 8), + PWM8 | (MAP_TO_SERVO_OUTPUT << 8), // servo #8 0xFFFF }; static const uint16_t airPWM[] = { - PWM1 | (TYPE_IW << 8), // input #1 - PWM2 | (TYPE_IW << 8), - PWM3 | (TYPE_IW << 8), - PWM4 | (TYPE_IW << 8), - PWM5 | (TYPE_IW << 8), - PWM6 | (TYPE_IW << 8), - PWM7 | (TYPE_IW << 8), - PWM8 | (TYPE_IW << 8), // input #8 - PWM9 | (TYPE_M << 8), // motor #1 - PWM10 | (TYPE_M << 8), // motor #2 - PWM11 | (TYPE_S << 8), // servo #1 - PWM12 | (TYPE_S << 8), - PWM13 | (TYPE_S << 8), - PWM14 | (TYPE_S << 8), // servo #4 + PWM1 | (MAP_TO_PWM_INPUT << 8), // input #1 + PWM2 | (MAP_TO_PWM_INPUT << 8), + PWM3 | (MAP_TO_PWM_INPUT << 8), + PWM4 | (MAP_TO_PWM_INPUT << 8), + PWM5 | (MAP_TO_PWM_INPUT << 8), + PWM6 | (MAP_TO_PWM_INPUT << 8), + PWM7 | (MAP_TO_PWM_INPUT << 8), + PWM8 | (MAP_TO_PWM_INPUT << 8), // input #8 + PWM9 | (MAP_TO_MOTOR_OUTPUT << 8), // motor #1 + PWM10 | (MAP_TO_MOTOR_OUTPUT << 8), // motor #2 + PWM11 | (MAP_TO_SERVO_OUTPUT << 8), // servo #1 + PWM12 | (MAP_TO_SERVO_OUTPUT << 8), + PWM13 | (MAP_TO_SERVO_OUTPUT << 8), + PWM14 | (MAP_TO_SERVO_OUTPUT << 8), // servo #4 0xFFFF }; #endif #ifdef CC3D static const uint16_t multiPPM[] = { - PWM1 | (TYPE_IP << 8), // PPM input - PWM7 | (TYPE_M << 8), // Swap to servo if needed - PWM8 | (TYPE_M << 8), // Swap to servo if needed - PWM9 | (TYPE_M << 8), - PWM10 | (TYPE_M << 8), - PWM11 | (TYPE_M << 8), - PWM12 | (TYPE_M << 8), - PWM2 | (TYPE_M << 8), // Swap to servo if needed - PWM3 | (TYPE_M << 8), // Swap to servo if needed - PWM4 | (TYPE_M << 8), // Swap to servo if needed - PWM5 | (TYPE_M << 8), // Swap to servo if needed - PWM6 | (TYPE_M << 8), // Swap to servo if needed + PWM1 | (MAP_TO_PPM_INPUT << 8), // PPM input + PWM7 | (MAP_TO_MOTOR_OUTPUT << 8), // Swap to servo if needed + PWM8 | (MAP_TO_MOTOR_OUTPUT << 8), // Swap to servo if needed + PWM9 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM10 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM11 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM12 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM2 | (MAP_TO_MOTOR_OUTPUT << 8), // Swap to servo if needed + PWM3 | (MAP_TO_MOTOR_OUTPUT << 8), // Swap to servo if needed + PWM4 | (MAP_TO_MOTOR_OUTPUT << 8), // Swap to servo if needed + PWM5 | (MAP_TO_MOTOR_OUTPUT << 8), // Swap to servo if needed + PWM6 | (MAP_TO_MOTOR_OUTPUT << 8), // Swap to servo if needed 0xFFFF }; static const uint16_t multiPWM[] = { - PWM1 | (TYPE_IW << 8), // input #1 - PWM2 | (TYPE_IW << 8), - PWM3 | (TYPE_IW << 8), - PWM4 | (TYPE_IW << 8), - PWM5 | (TYPE_IW << 8), - PWM6 | (TYPE_IW << 8), // input #6 - PWM7 | (TYPE_M << 8), // motor #1 or servo #1 (swap to servo if needed) - PWM8 | (TYPE_M << 8), // motor #2 or servo #2 (swap to servo if needed) - PWM9 | (TYPE_M << 8), // motor #1 or #3 - PWM10 | (TYPE_M << 8), - PWM11 | (TYPE_M << 8), - PWM12 | (TYPE_M << 8), // motor #4 or #6 + PWM1 | (MAP_TO_PWM_INPUT << 8), // input #1 + PWM2 | (MAP_TO_PWM_INPUT << 8), + PWM3 | (MAP_TO_PWM_INPUT << 8), + PWM4 | (MAP_TO_PWM_INPUT << 8), + PWM5 | (MAP_TO_PWM_INPUT << 8), + PWM6 | (MAP_TO_PWM_INPUT << 8), // input #6 + PWM7 | (MAP_TO_MOTOR_OUTPUT << 8), // motor #1 or servo #1 (swap to servo if needed) + PWM8 | (MAP_TO_MOTOR_OUTPUT << 8), // motor #2 or servo #2 (swap to servo if needed) + PWM9 | (MAP_TO_MOTOR_OUTPUT << 8), // motor #1 or #3 + PWM10 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM11 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM12 | (MAP_TO_MOTOR_OUTPUT << 8), // motor #4 or #6 0xFFFF }; static const uint16_t airPPM[] = { - PWM1 | (TYPE_IP << 8), // PPM input - PWM7 | (TYPE_M << 8), - PWM8 | (TYPE_M << 8), - PWM9 | (TYPE_S << 8), - PWM10 | (TYPE_S << 8), - PWM11 | (TYPE_S << 8), - PWM12 | (TYPE_S << 8), - PWM2 | (TYPE_S << 8), - PWM3 | (TYPE_S << 8), - PWM4 | (TYPE_S << 8), - PWM5 | (TYPE_S << 8), - PWM6 | (TYPE_S << 8), + PWM1 | (MAP_TO_PPM_INPUT << 8), // PPM input + PWM7 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM8 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM9 | (MAP_TO_SERVO_OUTPUT << 8), + PWM10 | (MAP_TO_SERVO_OUTPUT << 8), + PWM11 | (MAP_TO_SERVO_OUTPUT << 8), + PWM12 | (MAP_TO_SERVO_OUTPUT << 8), + PWM2 | (MAP_TO_SERVO_OUTPUT << 8), + PWM3 | (MAP_TO_SERVO_OUTPUT << 8), + PWM4 | (MAP_TO_SERVO_OUTPUT << 8), + PWM5 | (MAP_TO_SERVO_OUTPUT << 8), + PWM6 | (MAP_TO_SERVO_OUTPUT << 8), 0xFFFF }; static const uint16_t airPWM[] = { - PWM1 | (TYPE_IW << 8), // input #1 - PWM2 | (TYPE_IW << 8), - PWM3 | (TYPE_IW << 8), - PWM4 | (TYPE_IW << 8), - PWM5 | (TYPE_IW << 8), - PWM6 | (TYPE_IW << 8), // input #6 - PWM7 | (TYPE_M << 8), // motor #1 - PWM8 | (TYPE_M << 8), // motor #2 - PWM9 | (TYPE_S << 8), // servo #1 - PWM10 | (TYPE_S << 8), // servo #2 - PWM11 | (TYPE_S << 8), // servo #3 - PWM12 | (TYPE_S << 8), // servo #4 + PWM1 | (MAP_TO_PWM_INPUT << 8), // input #1 + PWM2 | (MAP_TO_PWM_INPUT << 8), + PWM3 | (MAP_TO_PWM_INPUT << 8), + PWM4 | (MAP_TO_PWM_INPUT << 8), + PWM5 | (MAP_TO_PWM_INPUT << 8), + PWM6 | (MAP_TO_PWM_INPUT << 8), // input #6 + PWM7 | (MAP_TO_MOTOR_OUTPUT << 8), // motor #1 + PWM8 | (MAP_TO_MOTOR_OUTPUT << 8), // motor #2 + PWM9 | (MAP_TO_SERVO_OUTPUT << 8), // servo #1 + PWM10 | (MAP_TO_SERVO_OUTPUT << 8), // servo #2 + PWM11 | (MAP_TO_SERVO_OUTPUT << 8), // servo #3 + PWM12 | (MAP_TO_SERVO_OUTPUT << 8), // servo #4 0xFFFF }; #endif #ifdef CJMCU static const uint16_t multiPPM[] = { - PWM1 | (TYPE_IP << 8), // PPM input - PWM2 | (TYPE_M << 8), - PWM3 | (TYPE_M << 8), - PWM4 | (TYPE_M << 8), - PWM5 | (TYPE_M << 8), + PWM1 | (MAP_TO_PPM_INPUT << 8), // PPM input + PWM7 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM14 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM8 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM13 | (MAP_TO_MOTOR_OUTPUT << 8), 0xFF }; static const uint16_t multiPWM[] = { - PWM1 | (TYPE_IP << 8), // PPM input - PWM2 | (TYPE_M << 8), - PWM3 | (TYPE_M << 8), - PWM4 | (TYPE_M << 8), - PWM5 | (TYPE_M << 8), + PWM1 | (MAP_TO_PWM_INPUT << 8), + PWM2 | (MAP_TO_PWM_INPUT << 8), + PWM3 | (MAP_TO_PWM_INPUT << 8), + PWM4 | (MAP_TO_PWM_INPUT << 8), + PWM9 | (MAP_TO_PWM_INPUT << 8), + PWM10 | (MAP_TO_PWM_INPUT << 8), + PWM7 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM14 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM8 | (MAP_TO_MOTOR_OUTPUT << 8), + PWM13 | (MAP_TO_MOTOR_OUTPUT << 8), 0xFF }; @@ -322,27 +327,27 @@ pwmOutputConfiguration_t *pwmInit(drv_pwm_config_t *init) #endif // hacks to allow current functionality - if (type == TYPE_IW && !init->useParallelPWM) + if (type == MAP_TO_PWM_INPUT && !init->useParallelPWM) type = 0; - if (type == TYPE_IP && !init->usePPM) + if (type == MAP_TO_PPM_INPUT && !init->usePPM) type = 0; if (init->useServos && !init->airplane) { #if defined(STM32F10X_MD) || defined(CHEBUZZF3) // remap PWM9+10 as servos if (timerIndex == PWM9 || timerIndex == PWM10) - type = TYPE_S; + type = MAP_TO_SERVO_OUTPUT; #endif #if (defined(STM32F303xC) || defined(STM32F3DISCOVERY)) && !defined(CHEBUZZF3) // remap PWM 5+6 or 9+10 as servos - softserial pin pairs require timer ports that use the same timer if (init->useSoftSerial) { if (timerIndex == PWM5 || timerIndex == PWM6) - type = TYPE_S; + type = MAP_TO_SERVO_OUTPUT; } else { if (timerIndex == PWM9 || timerIndex == PWM10) - type = TYPE_S; + type = MAP_TO_SERVO_OUTPUT; } #endif } @@ -350,22 +355,22 @@ pwmOutputConfiguration_t *pwmInit(drv_pwm_config_t *init) if (init->extraServos && !init->airplane) { // remap PWM5..8 as servos when used in extended servo mode if (timerIndex >= PWM5 && timerIndex <= PWM8) - type = TYPE_S; + type = MAP_TO_SERVO_OUTPUT; } - if (type == TYPE_IP) { + if (type == MAP_TO_PPM_INPUT) { ppmInConfig(timerHardwarePtr); - } else if (type == TYPE_IW) { + } else if (type == MAP_TO_PWM_INPUT) { pwmInConfig(timerHardwarePtr, channelIndex); channelIndex++; - } else if (type == TYPE_M) { + } else if (type == MAP_TO_MOTOR_OUTPUT) { if (init->motorPwmRate > 500) { pwmBrushedMotorConfig(timerHardwarePtr, pwmOutputConfiguration.motorCount, init->motorPwmRate, init->idlePulse); } else { pwmBrushlessMotorConfig(timerHardwarePtr, pwmOutputConfiguration.motorCount, init->motorPwmRate, init->idlePulse); } pwmOutputConfiguration.motorCount++; - } else if (type == TYPE_S) { + } else if (type == MAP_TO_SERVO_OUTPUT) { pwmServoConfig(timerHardwarePtr, pwmOutputConfiguration.servoCount, init->servoPwmRate, init->servoCenterPulse); pwmOutputConfiguration.servoCount++; } diff --git a/src/main/drivers/pwm_rx.c b/src/main/drivers/pwm_rx.c index 6111d7b9e2..e0e212744c 100644 --- a/src/main/drivers/pwm_rx.c +++ b/src/main/drivers/pwm_rx.c @@ -59,6 +59,8 @@ typedef struct { captureCompare_t fall; captureCompare_t capture; + uint8_t missedEvents; + const timerHardware_t *timerHardware; } pwmInputPort_t; @@ -212,6 +214,22 @@ static void ppmEdgeCallback(uint8_t port, captureCompare_t capture) } } +#define MAX_MISSED_PWM_EVENTS 10 + +extern uint16_t debug[4]; +static void pwmOverflowCallback(uint8_t port, captureCompare_t capture) +{ + UNUSED(capture); + pwmInputPort_t *pwmInputPort = &pwmInputPorts[port]; + + if (++pwmInputPort->missedEvents > MAX_MISSED_PWM_EVENTS) { + if (pwmInputPort->state == 0) { + captures[pwmInputPort->channel] = PPM_RCVR_TIMEOUT; + } + pwmInputPort->missedEvents = 0; + } +} + static void pwmEdgeCallback(uint8_t port, captureCompare_t capture) { pwmInputPort_t *pwmInputPort = &pwmInputPorts[port]; @@ -231,6 +249,7 @@ static void pwmEdgeCallback(uint8_t port, captureCompare_t capture) // switch state pwmInputPort->state = 0; pwmICConfig(timerHardwarePtr->tim, timerHardwarePtr->channel, TIM_ICPolarity_Rising); + pwmInputPort->missedEvents = 0; } } @@ -267,6 +286,8 @@ void pwmInConfig(const timerHardware_t *timerHardwarePtr, uint8_t channel) { pwmInputPort_t *p = &pwmInputPorts[channel]; + p->state = 0; + p->missedEvents = 0; p->channel = channel; p->mode = INPUT_MODE_PWM; p->timerHardware = timerHardwarePtr; @@ -275,7 +296,7 @@ void pwmInConfig(const timerHardware_t *timerHardwarePtr, uint8_t channel) pwmICConfig(timerHardwarePtr->tim, timerHardwarePtr->channel, TIM_ICPolarity_Rising); timerConfigure(timerHardwarePtr, PWM_TIMER_PERIOD, PWM_TIMER_MHZ); - configureTimerCaptureCompareInterrupt(timerHardwarePtr, channel, pwmEdgeCallback, NULL); + configureTimerCaptureCompareInterrupt(timerHardwarePtr, channel, pwmEdgeCallback, pwmOverflowCallback); } #define UNUSED_PPM_TIMER_REFERENCE 0 diff --git a/src/main/rx/rx.c b/src/main/rx/rx.c index 5e5b0caae9..607174dafb 100644 --- a/src/main/rx/rx.c +++ b/src/main/rx/rx.c @@ -242,7 +242,7 @@ void processRxChannels(void) bool shouldCheckPulse = true; - if (feature(FEATURE_FAILSAFE | FEATURE_RX_PPM)) { + if (feature(FEATURE_FAILSAFE) && feature(FEATURE_RX_PPM)) { shouldCheckPulse = isPPMDataBeingReceived(); resetPPMDataReceivedState(); } diff --git a/stm32_flash_f103.ld b/stm32_flash_f103_128k.ld similarity index 100% rename from stm32_flash_f103.ld rename to stm32_flash_f103_128k.ld diff --git a/stm32_flash_f103_64k.ld b/stm32_flash_f103_64k.ld new file mode 100644 index 0000000000..8825512697 --- /dev/null +++ b/stm32_flash_f103_64k.ld @@ -0,0 +1,150 @@ +/* +***************************************************************************** +** +** File : stm32_flash.ld +** +** Abstract : Linker script for STM32F103C8 Device with +** 64KByte FLASH, 20KByte RAM +** +***************************************************************************** +*/ + +/* Entry Point */ +ENTRY(Reset_Handler) + +/* Highest address of the user mode stack */ +_estack = 0x20005000; /* end of 20K RAM */ + +/* Generate a link error if heap and stack don't fit into RAM */ +_Min_Heap_Size = 0; /* required amount of heap */ +_Min_Stack_Size = 0x400; /* required amount of stack */ + +/* Specify the memory areas. Flash is limited for last 2K for configuration storage */ +MEMORY +{ + FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 62K /* last 2kb used for config storage */ + RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 20K + MEMORY_B1 (rx) : ORIGIN = 0x60000000, LENGTH = 0K +} + +/* Define output sections */ +SECTIONS +{ + /* The startup code goes first into FLASH */ + .isr_vector : + { + . = ALIGN(4); + KEEP(*(.isr_vector)) /* Startup code */ + . = ALIGN(4); + } >FLASH + + /* The program code and other data goes into FLASH */ + .text : + { + . = ALIGN(4); + *(.text) /* .text sections (code) */ + *(.text*) /* .text* sections (code) */ + *(.rodata) /* .rodata sections (constants, strings, etc.) */ + *(.rodata*) /* .rodata* sections (constants, strings, etc.) */ + *(.glue_7) /* glue arm to thumb code */ + *(.glue_7t) /* glue thumb to arm code */ + *(.eh_frame) + + KEEP (*(.init)) + KEEP (*(.fini)) + + . = ALIGN(4); + _etext = .; /* define a global symbols at end of code */ + } >FLASH + + + .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH + .ARM : { + __exidx_start = .; + *(.ARM.exidx*) + __exidx_end = .; + } >FLASH + + .preinit_array : + { + PROVIDE_HIDDEN (__preinit_array_start = .); + KEEP (*(.preinit_array*)) + PROVIDE_HIDDEN (__preinit_array_end = .); + } >FLASH + .init_array : + { + PROVIDE_HIDDEN (__init_array_start = .); + KEEP (*(SORT(.init_array.*))) + KEEP (*(.init_array*)) + PROVIDE_HIDDEN (__init_array_end = .); + } >FLASH + .fini_array : + { + PROVIDE_HIDDEN (__fini_array_start = .); + KEEP (*(.fini_array*)) + KEEP (*(SORT(.fini_array.*))) + PROVIDE_HIDDEN (__fini_array_end = .); + } >FLASH + + /* used by the startup to initialize data */ + _sidata = .; + + /* Initialized data sections goes into RAM, load LMA copy after code */ + .data : + { + . = ALIGN(4); + _sdata = .; /* create a global symbol at data start */ + *(.data) /* .data sections */ + *(.data*) /* .data* sections */ + + . = ALIGN(4); + _edata = .; /* define a global symbol at data end */ + } >RAM AT> FLASH + + /* Uninitialized data section */ + . = ALIGN(4); + .bss : + { + /* This is used by the startup in order to initialize the .bss secion */ + _sbss = .; /* define a global symbol at bss start */ + __bss_start__ = _sbss; + *(.bss) + *(.bss*) + *(COMMON) + + . = ALIGN(4); + _ebss = .; /* define a global symbol at bss end */ + __bss_end__ = _ebss; + } >RAM + + /* User_heap_stack section, used to check that there is enough RAM left */ + ._user_heap_stack : + { + . = ALIGN(4); + PROVIDE ( end = . ); + PROVIDE ( _end = . ); + . = . + _Min_Heap_Size; + . = . + _Min_Stack_Size; + . = ALIGN(4); + } >RAM + + /* MEMORY_bank1 section, code must be located here explicitly */ + /* Example: extern int foo(void) __attribute__ ((section (".mb1text"))); */ + .memory_b1_text : + { + *(.mb1text) /* .mb1text sections (code) */ + *(.mb1text*) /* .mb1text* sections (code) */ + *(.mb1rodata) /* read-only data (constants) */ + *(.mb1rodata*) + } >MEMORY_B1 + + /* Remove information from the standard libraries */ + /DISCARD/ : + { + libc.a ( * ) + libm.a ( * ) + libgcc.a ( * ) + } + + .ARM.attributes 0 : { *(.ARM.attributes) } +}