Lock MAX7456 updates during font update
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6bfcb9f023
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@ -70,6 +70,7 @@ static uint8_t video_signal_cfg = 0;
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static uint8_t video_signal_reg = VIDEO_MODE_PAL | OSD_ENABLE; //PAL by default
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static uint8_t max7456_lock = 0;
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static IO_t max7456CsPin = IO_NONE;
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static uint8_t font_is_loading = 0;
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static uint8_t max7456_send(uint8_t add, uint8_t data)
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{
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@ -311,7 +312,7 @@ void max7456_draw_screen(void) {
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static uint16_t pos = 0;
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int k = 0, buff_len=0;
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if (!max7456_lock) {
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if (!max7456_lock && !font_is_loading) {
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//-----------------detect MAX7456 fail, or initialize it at startup when it is ready--------
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max7456_lock = 1;
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ENABLE_MAX7456;
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@ -396,6 +397,7 @@ void max7456_write_nvm(uint8_t char_address, uint8_t *font_data) {
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ENABLE_MAX7456;
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// disable display
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font_is_loading = 1;
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max7456_send(VM0_REG, 0);
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max7456_send(MAX7456ADD_CMAH, char_address); // set start address high
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