From 8de163b8ae139931ddd2daabe8af0bd5fffc67f1 Mon Sep 17 00:00:00 2001 From: Tomasz Moń Date: Fri, 9 Jul 2021 14:16:05 +0200 Subject: Sansa Connect: Fix reported CPU frequency Make frequency related comments accurate. Disable UART0 clock. Change-Id: I224a3d6656ad53165dcff68ed716fa2c6863240d --- firmware/target/arm/tms320dm320/sansa-connect/avr-sansaconnect.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'firmware/target/arm/tms320dm320/sansa-connect/avr-sansaconnect.c') diff --git a/firmware/target/arm/tms320dm320/sansa-connect/avr-sansaconnect.c b/firmware/target/arm/tms320dm320/sansa-connect/avr-sansaconnect.c index 01acc6905e..6fd504a0f8 100644 --- a/firmware/target/arm/tms320dm320/sansa-connect/avr-sansaconnect.c +++ b/firmware/target/arm/tms320dm320/sansa-connect/avr-sansaconnect.c @@ -501,7 +501,10 @@ void avr_hid_init(void) bitclr16(&IO_GIO_DIR2, (1 << 0)); avr_hid_release(); - /* RATE = 219 (0xDB) -> 200 kHz */ + /* Master, MSB first, RATE = 219 (Bit rate = ARM clock / 2*(RATE + 1))) + * Boosted 148.5 MHz / 440 = 337.5 kHz + * Default 74.25 MHz / 440 = 168.75 kHz + */ IO_SERIAL1_MODE = 0x6DB; mutex_init(&avr_mtx); -- cgit v1.2.3