diff options
| author | Jack Halpin <jack.halpin@gmail.com> | 2009-10-16 17:44:23 +0000 |
|---|---|---|
| committer | Jack Halpin <jack.halpin@gmail.com> | 2009-10-16 17:44:23 +0000 |
| commit | 000cff5bae1576091ee9c23e33066bd3341d38d2 (patch) | |
| tree | 8dd9819f2b3f57747a5ee266a54b917d5da3be70 /firmware/target | |
| parent | af8cc7d35f917e28e408ffe308a7dab19d040974 (diff) | |
| download | rockbox-000cff5bae1576091ee9c23e33066bd3341d38d2.tar.gz rockbox-000cff5bae1576091ee9c23e33066bd3341d38d2.zip | |
AMS Sansa: Lower ADC checkvalue for voltage scaling to 1.175V as some players run slightly low.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23205 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target')
| -rw-r--r-- | firmware/target/arm/as3525/system-as3525.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/firmware/target/arm/as3525/system-as3525.c b/firmware/target/arm/as3525/system-as3525.c index ba817b4ad3..dc335dfaad 100644 --- a/firmware/target/arm/as3525/system-as3525.c +++ b/firmware/target/arm/as3525/system-as3525.c @@ -338,9 +338,9 @@ void set_cpu_frequency(long frequency) /* Increasing frequency so boost voltage before change */ ascodec_write(AS3514_CVDD_DCDC3, (AS314_CP_DCDC3_SETTING | CVDD_1_20)); - /* Wait for voltage to be at least 1.20v before making fclk > 200 MHz */ - while(adc_read(ADC_CVDD) < 480) /* 480 * .0025 = 1.20V */ - ; + /* Some players run a bit low so use 1.175 volts instead of 1.20 */ + /* Wait for voltage to be at least 1.175v before making fclk > 200 MHz */ + while(adc_read(ADC_CVDD) < 470); /* 470 * .0025 = 1.175V */ asm volatile( "mrc p15, 0, r0, c1, c0 \n" |