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esp32/machine_rtc: Reduce memory footprint of user mem functionality.

This commit is contained in:
Josh Lloyd 2019-11-21 15:09:01 +13:00 committed by Damien George
parent ed2314f35a
commit 1530fda9cf
1 changed files with 3 additions and 4 deletions
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7
ports/esp32/machine_rtc.c
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@ -64,7 +64,7 @@ typedef struct _machine_rtc_obj_t {
#if MICROPY_HW_RTC_USER_MEM_MAX > 0
#define MEM_MAGIC 0x75507921
RTC_DATA_ATTR uint32_t rtc_user_mem_magic;
RTC_DATA_ATTR uint32_t rtc_user_mem_len;
RTC_DATA_ATTR uint16_t rtc_user_mem_len;
RTC_DATA_ATTR uint8_t rtc_user_mem_data[MICROPY_HW_RTC_USER_MEM_MAX];
#endif
@ -145,10 +145,9 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_2(machine_rtc_init_obj, machine_rtc_init);
STATIC mp_obj_t machine_rtc_memory(mp_uint_t n_args, const mp_obj_t *args) {
if (n_args == 1) {
// read RTC memory
uint32_t len = rtc_user_mem_len;
uint8_t rtcram[MICROPY_HW_RTC_USER_MEM_MAX];
memcpy( (char *) rtcram, (char *) rtc_user_mem_data, len);
return mp_obj_new_bytes(rtcram, len);
memcpy((char*)rtcram, (char*)rtc_user_mem_data, rtc_user_mem_len);
return mp_obj_new_bytes(rtcram, rtc_user_mem_len);
} else {
// write RTC memory
mp_buffer_info_t bufinfo;