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display: set minimum possible values for sram controller

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Pavol Rusnak 2017-10-15 22:07:34 +02:00
parent 46a0dd8648
commit b6f9df10bb
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1 changed files with 7 additions and 7 deletions
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embed/extmod/modtrezorui/display-stm32.h
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@ -210,13 +210,13 @@ int display_init(void) {
// reference RM0090 section 37.5 Table 259, 37.5.4, Mode 1 SRAM, and 37.5.6
FMC_NORSRAM_TimingTypeDef normal_mode_timing;
normal_mode_timing.AddressSetupTime = 15; // works, not sure if optimal
normal_mode_timing.AddressHoldTime = 15; // don't care
normal_mode_timing.DataSetupTime = 5; // works, not sure if optimal
normal_mode_timing.BusTurnAroundDuration = 15; // works, not sure if optimal
normal_mode_timing.CLKDivision = 16; // don't care
normal_mode_timing.DataLatency = 17; // don't care
normal_mode_timing.AccessMode = FMC_ACCESS_MODE_A; // don't care
normal_mode_timing.AddressSetupTime = 4;
normal_mode_timing.AddressHoldTime = 1;
normal_mode_timing.DataSetupTime = 4;
normal_mode_timing.BusTurnAroundDuration = 0;
normal_mode_timing.CLKDivision = 2;
normal_mode_timing.DataLatency = 2;
normal_mode_timing.AccessMode = FMC_ACCESS_MODE_A;
HAL_SRAM_Init(&external_display_data_sram, &normal_mode_timing, NULL);