kopia lustrzana https://github.com/hoglet67/RGBtoHDMI
Increase some settle times
rodzic
aad01fb7e5
commit
b52221de7c
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@ -1713,21 +1713,21 @@ static void init_hardware() {
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RPI_SetGpioPinFunction(SP_CLK_PIN, FS_OUTPUT);
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RPI_SetGpioValue(VERSION_PIN, 1); //force VERSION PIN high to help weak pullup
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RPI_SetGpioValue(SP_CLK_PIN, 1); //force SP_CLK_PIN high to help weak pullup
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delay_in_arm_cycles(10000); //~10uS settle delay
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delay_in_arm_cycles(100000); //~100uS settle delay
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RPI_SetGpioPinFunction(VERSION_PIN, FS_INPUT); //make VERSION PIN input
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RPI_SetGpioPinFunction(SP_CLK_PIN, FS_INPUT); //make SP_CLK_PIN input
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delay_in_arm_cycles(1000000); //~1ms delay to allow strong pulldown to take effect if fitted
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int version_state = RPI_GetGpioValue(VERSION_PIN);
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delay_in_arm_cycles(1000);
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delay_in_arm_cycles(10000);
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version_state |= RPI_GetGpioValue(VERSION_PIN);
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delay_in_arm_cycles(1000);
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delay_in_arm_cycles(10000);
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version_state |= RPI_GetGpioValue(VERSION_PIN); // read three times to be sure as it maybe picking up noise from adjacent tracks with just weak pullup
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int sp_clk_state = RPI_GetGpioValue(SP_CLK_PIN);
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delay_in_arm_cycles(1000);
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delay_in_arm_cycles(10000);
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sp_clk_state |= RPI_GetGpioValue(SP_CLK_PIN);
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delay_in_arm_cycles(1000);
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delay_in_arm_cycles(10000);
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sp_clk_state |= RPI_GetGpioValue(SP_CLK_PIN); // read three times to be sure as it maybe picking up noise from adjacent tracks with just weak pullup
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@ -1879,10 +1879,10 @@ static void cpld_init() {
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RPI_SetGpioValue(MUX_PIN, 0); // have to set mux to 0 to allow analog detection to work (GPIO on older cplds)
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// Assert the active low version pin
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RPI_SetGpioValue(VERSION_PIN, 0);
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delay_in_arm_cycles_cpu_adjust(100);
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delay_in_arm_cycles_cpu_adjust(1000);
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RPI_SetGpioPinFunction(STROBE_PIN, FS_OUTPUT);
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RPI_SetGpioValue(STROBE_PIN, 0);
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delay_in_arm_cycles_cpu_adjust(1000);
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delay_in_arm_cycles_cpu_adjust(10000);
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// The CPLD now outputs an identifier and version number on the 12-bit pixel quad bus
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cpld_version_id = read_cpld_version();
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