804e71e175
- Gate capture on SD_IsReady() after successful SD_Init; avoid false 'insert SD' when SD.cardType() lies after WiFi on shared SPI with LCD - SD_Init: LCD CS high, SD.end() on empty card; HandshakeCapture save path retries SD_Init before discard - FAT filename sanitize, discard deadlocks, WPA3 scan labels, docs (README, PRODUCTION, IMPROVEMENTS), firmware version 1.0.1 Made-with: Cursor
31 lines
654 B
C++
31 lines
654 B
C++
#include "SD_Card.h"
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#include "Display_ST7789.h"
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uint16_t SDCard_Size = 0;
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static bool g_sd_ready = false;
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bool SD_IsReady() {
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return g_sd_ready;
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}
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bool SD_Init() {
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g_sd_ready = false;
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pinMode(SD_CS, OUTPUT);
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digitalWrite(SD_CS, HIGH);
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// Shared SPI with ST7789: ensure display CS idle so SD sees a clean bus.
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digitalWrite(EXAMPLE_PIN_NUM_LCD_CS, HIGH);
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if (!SD.begin(SD_CS, SPI)) {
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Serial.println("SD init failed");
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return false;
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}
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if (SD.cardType() == CARD_NONE) {
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Serial.println("No SD card");
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SD.end();
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return false;
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}
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g_sd_ready = true;
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SDCard_Size = SD.totalBytes() / (1024 * 1024);
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return true;
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}
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