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raspberrypi: Increase PIO clock speed in ParallelImageCapture

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.. this allows DIV_4 and DIV_2 resolutions to work without being
jumbled.
This commit is contained in:
Jeff Epler 2021-04-22 12:14:44 -05:00
parent 2def016fd0
commit 10fee3e673
1 changed files with 1 additions and 2 deletions
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3
ports/raspberrypi/common-hal/imagecapture/ParallelImageCapture.c
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@ -84,8 +84,7 @@ mp_printf(&mp_plat_print, "[%2d] %04x\n", i, imagecapture_code[i]);
common_hal_rp2pio_statemachine_construct(&self->state_machine,
imagecapture_code, MP_ARRAY_SIZE(imagecapture_code),
// common_hal_mcu_processor_get_frequency(), // full speed (4 instructions per loop -> max pclk 30MHz @ 120MHz)
12000000, // 12MHz -> fine for pixel clock 1MHz
common_hal_mcu_processor_get_frequency(), // full speed (4 instructions per loop -> max pclk 30MHz @ 120MHz)
0, 0, // init
NULL, 0, 0, 0, // out pins
data0, data_count, // in pins