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esp8266: explicitly set the RF calibration at boot for SDK 1.5.4.1

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This commit is contained in:
Thorsten von Eicken 2016-07-25 09:27:42 -07:00
parent 0aa71d9ab2
commit 056d69acae
1 changed files with 8 additions and 2 deletions
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10
targets/esp8266/user_main.c
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@ -288,6 +288,14 @@ void user_uart_init() {
*/
void user_rf_pre_init() {
system_update_cpu_freq(160);
// RF calibration: 0=do what byte 114 of esp_init_data_default says, 1=calibrate VDD33 and TX
// power (18ms); 2=calibrate VDD33 only (2ms); 3=full calibration (200ms). The default value of
// byte 114 is 0, which has the same effect as option 2 here. We're using option 3 'cause it's
// unlikely anyone will notice the 200ms or the extra power consumption given that Espruino
// doesn't really support low power sleep modes.
// See the appending of the 2A-ESP8266_IOT_SDK_User_Manual.pdf
system_phy_set_powerup_option(3); // 3: full RF calibration on reset (200ms)
system_phy_set_max_tpw(82); // 82: max TX power
//os_printf("Time sys=%u rtc=%u\n", system_get_time(), system_get_rtc_time());
}
@ -305,7 +313,6 @@ user_rf_cal_sector_set(void) {
default:
sect = 128; // 0x80000
}
os_printf("RF cal sect %ld=0x%lx\n", sect, sect<<12);
return sect;
}
@ -327,7 +334,6 @@ void user_init() {
os_printf("Variables: %d @%dea = %dbytes\n", JSVAR_CACHE_SIZE, sizeof(JsVar),
JSVAR_CACHE_SIZE * sizeof(JsVar));
os_printf("Time sys=%u rtc=%u\n", system_get_time(), system_get_rtc_time());
user_rf_cal_sector_set(); // to get its printout
espFlashKB = flash_kb[system_get_flash_size_map()];