diff options
Diffstat (limited to 'wirish')
| -rw-r--r-- | wirish/boards.cpp | 12 | ||||
| -rw-r--r-- | wirish/syscalls.c | 18 | ||||
| -rw-r--r-- | wirish/usb_serial.cpp | 13 |
3 files changed, 31 insertions, 12 deletions
diff --git a/wirish/boards.cpp b/wirish/boards.cpp index dbc308e..a693fa6 100644 --- a/wirish/boards.cpp +++ b/wirish/boards.cpp @@ -143,13 +143,10 @@ static void setup_clocks(void) { * These addresses are where usercode starts when a bootloader is * present. If no bootloader is present, the user NVIC usually starts * at the Flash base address, 0x08000000. - * - * FIXME Let the build specify the vector table address numerically to - * avoid having these magic values -- some people have been fixing up - * the bootloader so it uses less space. */ #define USER_ADDR_ROM 0x08005000 #define USER_ADDR_RAM 0x20000C00 +extern char __text_start__; static void setup_nvic(void) { #ifdef VECT_TAB_FLASH @@ -158,8 +155,13 @@ static void setup_nvic(void) { nvic_init(USER_ADDR_RAM, 0); #elif defined VECT_TAB_BASE nvic_init((uint32)0x08000000, 0); +#elif defined VECT_TAB_ADDR + // A numerically supplied value + nvic_init((uint32)VECT_TAB_ADDR, 0); #else -#error "You must select a base address for the vector table." + // Use the __text_start__ value from the linker script; this + // should be the start of the vector table. + nvic_init((uint32)&__text_start__, 0); #endif } diff --git a/wirish/syscalls.c b/wirish/syscalls.c index 1e62d51..d5f2d9f 100644 --- a/wirish/syscalls.c +++ b/wirish/syscalls.c @@ -37,17 +37,18 @@ #include <sys/stat.h> #include <errno.h> +#include <stddef.h> /* If CONFIG_HEAP_START (or CONFIG_HEAP_END) isn't defined, then * assume _lm_heap_start (resp. _lm_heap_end) is appropriately set by * the linker */ #ifndef CONFIG_HEAP_START extern char _lm_heap_start; -#define CONFIG_HEAP_START ((caddr_t)&_lm_heap_start) +#define CONFIG_HEAP_START ((void *)&_lm_heap_start) #endif #ifndef CONFIG_HEAP_END extern char _lm_heap_end; -#define CONFIG_HEAP_END ((caddr_t)&_lm_heap_end) +#define CONFIG_HEAP_END ((void *)&_lm_heap_end) #endif /* @@ -56,9 +57,9 @@ extern char _lm_heap_end; * Get incr bytes more RAM (for use by the heap). malloc() and * friends call this function behind the scenes. */ -caddr_t _sbrk(int incr) { - static caddr_t pbreak = NULL; /* current program break */ - caddr_t ret; +void *_sbrk(int incr) { + static void * pbreak = NULL; /* current program break */ + void * ret; if (pbreak == NULL) { pbreak = CONFIG_HEAP_START; @@ -67,7 +68,7 @@ caddr_t _sbrk(int incr) { if ((CONFIG_HEAP_END - pbreak < incr) || (pbreak - CONFIG_HEAP_START < -incr)) { errno = ENOMEM; - return (caddr_t)-1; + return (void *)-1; } ret = pbreak; @@ -168,3 +169,8 @@ __weak char *fgets(char *s, int bufsize, void *f) { cgets(s, bufsize); return s; } + +__weak void _exit(int exitcode) { + while (1) + ; +} diff --git a/wirish/usb_serial.cpp b/wirish/usb_serial.cpp index 380f197..d21766f 100644 --- a/wirish/usb_serial.cpp +++ b/wirish/usb_serial.cpp @@ -92,13 +92,24 @@ void USBSerial::write(const void *buf, uint32 len) { uint32 old_txed = 0; uint32 start = millis(); + uint32 sent = 0; + while (txed < len && (millis() - start < USB_TIMEOUT)) { - txed += usb_cdcacm_tx((const uint8*)buf + txed, len - txed); + sent = usb_cdcacm_tx((const uint8*)buf + txed, len - txed); + txed += sent; if (old_txed != txed) { start = millis(); } old_txed = txed; } + + + if (sent == USB_CDCACM_TX_EPSIZE) { + while (usb_cdcacm_is_transmitting() != 0) { + } + /* flush out to avoid having the pc wait for more data */ + usb_cdcacm_tx(NULL, 0); + } } uint32 USBSerial::available(void) { |