Mercurial > ~darius > hgwebdir.cgi > modulator
diff dac.pio @ 5:2db42eaba3c8
WIP
author | Daniel O'Connor <darius@dons.net.au> |
---|---|
date | Sat, 15 Feb 2025 22:57:18 +1030 |
parents | 0d653f60dec8 |
children | 3acdebd7eec7 |
line wrap: on
line diff
--- a/dac.pio Tue Feb 04 14:20:07 2025 +1030 +++ b/dac.pio Sat Feb 15 22:57:18 2025 +1030 @@ -19,7 +19,7 @@ .wrap % c-sdk { -static inline void dac_program_init(PIO pio, uint sm, uint offset, uint pin) { +static inline void dac_program_init(PIO pio, uint sm, uint offset, uint pin, uint clkdiv) { pio_sm_config c = dac_program_get_default_config(offset); // Set the OUT base pin to the provided `pin` parameter. @@ -35,7 +35,7 @@ &c, true, // Shift-to-right false, // Autopull enabled - 8 // Autopull threshold (bits!) + 32 // Autopull threshold (bits!) ); // Configure clock as sideset pin @@ -44,7 +44,7 @@ // We only send, so disable the RX FIFO to make the TX FIFO deeper. sm_config_set_fifo_join(&c, PIO_FIFO_JOIN_TX); -// sm_config_set_clkdiv(&c, 100); + sm_config_set_clkdiv(&c, clkdiv); // Load our configuration, and start the program from the beginning pio_sm_init(pio, sm, offset, &c);