Add functions to get top and limit stack
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@ -271,6 +271,14 @@ void reset_cpu(void) {
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reset();
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}
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uint32_t *port_stack_get_limit(void) {
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return &_ebss;
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}
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uint32_t *port_stack_get_top(void) {
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return &_estack;
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}
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// Place the word to save 8k from the end of RAM so we and the bootloader don't clobber it.
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#ifdef SAMD21
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uint32_t* safe_word = (uint32_t*) (HMCRAMC0_ADDR + HMCRAMC0_SIZE - 0x2000);
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@ -67,6 +67,14 @@ void reset_port(void) {
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void reset_to_bootloader(void) {
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}
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uint32_t *port_stack_get_limit(void) {
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return &_ebss;
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}
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uint32_t *port_stack_get_top(void) {
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return &_estack;
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}
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extern uint32_t _ebss;
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// Place the word to save just after our BSS section that gets blanked.
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@ -146,6 +146,14 @@ void reset_cpu(void) {
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NVIC_SystemReset();
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}
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uint32_t *port_stack_get_limit(void) {
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return &_ebss;
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}
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uint32_t *port_stack_get_top(void) {
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return &_estack;
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}
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extern uint32_t _ebss;
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// Place the word to save just after our BSS section that gets blanked.
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void port_set_saved_word(uint32_t value) {
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@ -67,6 +67,14 @@ void reset_cpu(void) {
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NVIC_SystemReset();
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}
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uint32_t *port_stack_get_limit(void) {
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return &_ebss;
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}
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uint32_t *port_stack_get_top(void) {
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return &_estack;
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}
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extern uint32_t _ebss;
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// Place the word to save just after our BSS section that gets blanked.
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void port_set_saved_word(uint32_t value) {
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@ -54,6 +54,12 @@ void reset_board(void);
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// Reset to the bootloader
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void reset_to_bootloader(void);
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// Get stack limit address
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uint32_t *port_stack_get_limit(void);
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// Get stack top address
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uint32_t *port_stack_get_top(void);
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// Save and retrieve a word from memory that is preserved over reset. Used for safe mode.
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void port_set_saved_word(uint32_t);
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uint32_t port_get_saved_word(void);
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