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Merge pull request #857 from devsaurus/dev-spi_cpol 

SPI: cpol=high is not implemented due to insufficient hw docs
This commit is contained in:
Johny Mattsson 2015-12-17 12:57:25 +11:00
parent 53ee80e3aa 5e9bf95ccc
commit 6d82f8da9d
1 changed files with 4 additions and 0 deletions
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4
app/modules/spi.c
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@ -33,6 +33,10 @@ static int spi_setup( lua_State *L )
if (cpol != PLATFORM_SPI_CPOL_LOW && cpol != PLATFORM_SPI_CPOL_HIGH) {
return luaL_error( L, "wrong arg type" );
}
// CPOL_HIGH is not implemented, see app/driver/spi.c spi_master_init()
if (cpol == PLATFORM_SPI_CPOL_HIGH) {
return luaL_error( L, "cpol=high is not implemented" );
}
if (cpha != PLATFORM_SPI_CPHA_LOW && cpha != PLATFORM_SPI_CPHA_HIGH) {
return luaL_error( L, "wrong arg type" );