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update bootloader_random_enable and disbale api

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hongshuqing
2026-06-26 19:08:10 +08:00
parent 583f5b4de3
commit f704fbb5ec
1 changed files with 23 additions and 1 deletions
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24
components/bootloader_support/src/bootloader_random_esp32h21.c
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@@ -5,14 +5,36 @@
*/
#include "sdkconfig.h"
#include "bootloader_random.h"
#include "soc/lpperi_reg.h"
#include "rom/ets_sys.h"
#include "rom/uart.h"
void bootloader_random_enable(void)
{
// Disable rtc_timer update for rng
SET_PERI_REG_BITS(LPPERI_RNG_CFG_REG, LPPERI_RTC_TIMER_EN, 0, LPPERI_RTC_TIMER_EN_S);
// Enable entropy source of ring
SET_PERI_REG_MASK(LPPERI_RNG_CFG_REG, LPPERI_RNG_SAMPLE_ENABLE);
//For dieharder test
ets_printf("H21: Random bytes (%s) follow:\n", "test");
while (1) {
uint32_t w = READ_PERI_REG(LPPERI_RNG_DATA_SYNC_REG);
ets_printf("rng_data:%d\n", w);
uart_tx_wait_idle(0);
// uart_tx_one_char(w >> 24);
// uart_tx_one_char(w >> 16);
// uart_tx_one_char(w >> 8);
// uart_tx_one_char(w);
}
}
void bootloader_random_disable(void)
{
// Disable rtc_timer update for rng
SET_PERI_REG_BITS(LPPERI_RNG_CFG_REG, LPPERI_RTC_TIMER_EN, 0, LPPERI_RTC_TIMER_EN_S);
// Disable entropy source of ring
CLEAR_PERI_REG_MASK(LPPERI_RNG_CFG_REG, LPPERI_RNG_SAMPLE_ENABLE);
}